Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.4.xSG
Available Languages
Table of Contents
Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE Release 3.4.xSG
Supported Hardware on the Catalyst 4500E Series Switch
Supported E Series Hardware on Cisco IOS XE Release 3.4.0SG
Features Not Supported on the Cisco Catalyst 4500E Series Switch
New Software Features in Release IOS XE 3.4.2SG
New Hardware Features in Release IOS XE 3.4.2SG
New Software Features in Release IOS XE 3.4.0SG
New Hardware Features in Release IOS XE 3.4.0SG
Cisco IOS XE to Cisco IOS Version Number Mapping
Identifying an +E Chassis and ROMMON
Resolved Caveats for Cisco IOS XE Release 3.4.9 SG
Resolved Caveats for Cisco IOS XE Release 3.4.8 SG
Open Caveats for Cisco IOS XE Release 3.4.7SG
Resolved Caveats for Cisco IOS XE Release 3.4.7SG
Open Caveats for Cisco IOS XE Release 3.4.6SG
Resolved Caveats for Cisco IOS XE Release 3.4.6SG
Open Caveats for Cisco IOS XE Release 3.4.5SG
Resolved Caveats for Cisco IOS XE Release 3.4.5SG
Open Caveats for Cisco IOS XE Release 3.4.4SG
Resolved Caveats for Cisco IOS XE Release 3.4.4SG
Open Caveats for Cisco IOS XE Release 3.4.3SG
Resolved Caveats for Cisco IOS XE Release 3.4.3SG
Open Caveats for Cisco IOS XE Release 3.4.2SG
Resolved Caveats for Cisco IOS XE Release 3.4.2SG
Open Caveats for Cisco IOS XE Release 3.4.1SG
Resolved Caveats for Cisco IOS XE Release 3.4.1SG
Open Caveats for Cisco IOS XE Release 3.4.0SG
Resolved Caveats for Cisco IOS XE Release 3.4.0SG
Obtaining Documentation and Submitting a Service Request
Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE Release 3.4.xSG
Current release
IOS XE 3.4.8SG—Nov 11, 2016
Prior release
IOS XE 3.4.7 SG, IOS XE 3.4.6SG, IOS XE 3.4.5SG, IOS XE 3.4.4SG, IOS XE 3.4.3SG, XE 3.4.2SG, XE 3.4.1, XE 3.4.0SG
This release note describes the features, modifications, and caveats for the Cisco IOS XE 3.4.xSG software on the Catalyst 4500E series switch with Supervisor Engine 7-E and 7L-E.
Cisco IOS XE Software Release 3.4.2SG introduces the Permanent Right-to-Use (PRTU) license feature.
Cisco IOS XE Software Release 3.4.0SG delivers new software and hardware innovations in campus access and aggregation deployments that span across many technologies including Security, Video, High Availability, Network Virtualization, IP Multicast and Lower TCO as following:
–
Layer 2 Multichassis EtherChannel (MEC)
– Enhanced Port Aggregation Protocol (ePAgP) split brain detection method
– Cross-chassis Nonstop Forwarding with Stateful Switchover (NSF/SSO)
– Cross-chassis in-service software upgrade (ISSU)
– Support for Power over Ethernet (PoE) line card
– Support for virtual switch link (VSL) on 1 Gigabit and 10 Gigabit links
– All four ports on quad supervisor scenario may be used for uplink
– Lightweight DHCPv6 Relay Agent (LDRA)
– IPv6 Neighbor Discovery Multicast Suppression
– IPv6 Router Advertisement (RA) Guard
– Secure Shell SSH Version 2 Client Support
– Secure Shell SSH Version 2 Server Support
– SSH Keyboard Interactive Authentication
– SSHv2 Enhancements for RSA Keys
Lower Total Cost of Ownership and Ease of Use
Routing and Multicast Enhancements
- BGP Consistency Checker
- IPv6 BSR Scoped Zone support
- OSPFv3 Address Families
- OSPFv3 Time To Live Security
- Policy Based Routing: Recursive Next Hop
- FTP IPv6 Support
- IPSLA 4.0 - IPv6 phase 2
- IPSLA Multicast Support
- NTPv4 Orphan Mode support, Range for trusted key configuration
- TFTP IPv6 Support
- WSMA and XMLPI enhancement
Support for Cisco IOS XE Release 3.4.0SG follows the standard Cisco Systems® support policy, available at
http://www.cisco.com/en/US/products/products_end-of-life_policy.html
For more information on the Catalyst 4500E series switches, visit the following URL:
http://www.cisco.com//en/US/products/hw/switches/ps4324/index.html
Note Although this release note and those for the Catalyst 4900M, Catalyst 4948E, Catalyst 4948E-F Series Switches, Catalyst 4500 Series Switches, and the Catalyst 4500-X Series Switches differ, each leverages the same Software Configuration Guide, Command Reference Guide, and System Message Guide.
Cisco IOS Software Packaging
The Enterprise Services image supports all Cisco Catalyst 4500E Series software features based on Cisco IOS Software, including enhanced routing.
The IP Base image supports Open Shortest Path First (OSPF) for Routed Access, Enhanced Interior Gateway Routing Protocol (EIGRP) "limited" Stub Routing, Nonstop Forwarding/Stateful Switchover (NSF/SSO), and RIPv1/v2. The IP Base image does not support enhanced routing features such as BGP, Intermediate System-to-Intermediate System (IS-IS), Internetwork Packet Exchange (IPX), AppleTalk, Virtual Routing Forwarding (VRF-lite), and policy-based routing (PBR).
The LAN Base image complements the existing IP Base and Enterprise Services images. It is focused on customer access and Layer 2 requirements and therefore many of the IP Base features are not required. The IP upgrade image is available if at a later date you require some of those features
Starting with Cisco IOS Release (3.3.0SG or 15.1(1)SG), support for IP SLAs and NSF have been extended from Enterprise Services to IP Base.
Cisco XE Release Strategy
Customers with Catalyst 4500 Series Switches who need the latest hardware and software features should migrate to Cisco IOS Release XE 3.4.0SG.
IOS XE 3.2.xSG is an active maintenance train that supports Sup7E only. IOS XE 3.4.xSG is a maintenance train supporting Sup7E, Sup7L-E and 4500X.
Figure 1 displays the two active trains: 3.2.xSG and 3.4.xSG.
Figure 1 Software Release Strategy for the Catalyst 4500E Series Switch
Support
Support for Cisco IOS Software Release XE 3.4.0SG follows the standard Cisco Systems® support policy, available at
http://www.cisco.com/en/US/products/products_end-of-life_policy.html
System Requirements
This section describes the system requirements:
- Supported Hardware on the Catalyst 4500E Series Switch
- Supported E Series Hardware on Cisco IOS XE Release 3.4.0SG
- Feature Support by Image Type
- MIB Support
- Features Not Supported on the Cisco Catalyst 4500E Series Switch
- Orderable Product Numbers
Supported Hardware on the Catalyst 4500E Series Switch
For information on the minimum supported release for each pluggable module please refer to:
http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html
Table 1 lists the hardware supported on the Catalyst 4500E Series Switch.
Note Linecards with WS-X45xx and below are not supported in VSS.
Catalyst 4500E-series switch Supervisor Engine 7-E Note This engine is supported on E-series, R-E, and R+E chassis. |
|
Catalyst 4500E-series switch Supervisor Engine 7L-E Note This engine is supported on E-series, R-E, and R+E chassis. |
|
18-port 1000BASE-X (GBIC) Gigabit Ethernet server switching module |
|
12-port 1000BASE-T Gigabit Ethernet and 2-GBIC ports switching module |
|
24-port 10/100/1000BASE-T Gigabit Ethernet RJ-45 switching module |
|
48-port 1000BASE-LX (small form-factor pluggable) Gigabit Ethernet fiber optic interface switching module |
|
6-port Alternately-Wired 10/100/1000BASE-T Catalyst 4500 series Power over Ethernet (PoE) 802.3af or 1000BASE-X SFP |
|
24-port 10/100/1000BASE-T RJ-45 Catalyst 4500 series PoE 802.3af |
|
48-port 10/100/1000BASE-T RJ-45 Catalyst 4500 series PoE 802.3af |
|
12-port 1000BASE-X (small form factor pluggable) module with jumbo frame support |
|
Non-blocking 24-port 1000BASEX (small form factor pluggable) module |
|
80 ports with Gigabit compact SFP (4:1 oversubscribed); 40 modules of Gigabit SFP line card (1000BaseX), providing 24 gigabits per-slot capacity (SFP optional) (2:1 oversubscribed) |
|
48 port 10/100/1000BT with 2 to 1 oversubscription and jumbo frame support |
|
48 port 10/100/1000 Mb with 2 to 1 oversubscription PoE 802.3af providing up to 20 Watts power/port |
|
48 port 10/100/1000 Mb with 2 to 1 oversubscription PoE 802.3at providing up to 30 Watts power/port |
|
48-port 10/100/1000 line card nonblocking PoE 802.3at providing up to 30 Watts power/port |
|
48-port 10/100/1000 line card nonblocking PoE 802.3at and 60 watt UPoE PoE linecard with Ethernet Energy Efficient feature. |
|
48-port 10/100/1000 nonblocking line card with the Ethernet Energy Efficient feature |
|
24-port 100BASE-FX Fast Ethernet MT-RJ multimode fiber switching module |
|
48-port 100BASE-FX Fast Ethernet MT-RJ multimode fiber switching module |
|
48-port 100BASE-LX10 Fast Ethernet MT-RJ single-mode fiber switching module |
|
24-port 10/100BASE-TX RJ-45 Cisco Catalyst 4500 series PoE 802.3af |
|
32-port 10/100 Fast Ethernet RJ-45, plus 2-port 1000BASE-X (GBIC) Gigabit Ethernet switching module |
|
48-port 10/100BASE-T RJ-45 Cisco Catalyst 4500 series PoE 802.3af |
|
48-port 10/100 Fast Ethernet RJ-21 Cisco Catalyst 4500 series PoE 802.3af telco |
|
32-port 10/100 Fast Ethernet RJ-45 modular uplink switching module |
|
1000BASE-LX/LH small form-factor pluggable module with DOM support |
|
CWDM small form-factor pluggable module (See Table 2 for a list of supported wavelengths.) |
|
10GBASE-LR X2 transceiver module for SMF, 1310-nm wavelength, SC duplex connector |
|
10GBASE-ER X2 transceiver module for SMF, 1550-nm wavelength, SC duplex connector |
|
10GBASE-CX4 X2 transceiver module for CX4 cable, copper, Infiniband 4X connector |
|
10GBASE-LX4 X2 transceiver module for MMF, 1310-nm wavelength, SC duplex connector |
|
10GBASE-LRM X2 transceiver module for MMF, 1310-nm wavelength, SC duplex connector |
|
10GBASE-SR X2 transceiver module for MMF, 850-nm wavelength, SC duplex connector |
|
10GBASE-T X2 transceiver module, up to 100m wavelength on CAT6A or CAT7 copper cables |
|
10GBASE-ZR X2 transceiver module for SMF, 1550 nm wavelength up to 80 km. DOM is not supported. |
|
10GBASE-ZR X2 transceiver module for SMF, 32 nontunable ITU 100-GHz wavelengths up to 80 km are supported. DOM is supported. Dual SC/PC connectors are supported. |
|
Hot-swappable input/output (I/O) converter module that fits into a 10-Gigabit Ethernet X2 slot on a switch or line card module. Hosts one 10-Gigabit Ethernet SFP+ transceiver module. |
|
CWDM gigabit interface converter (See Table 2 for a list of supported wavelengths.) |
|
Dense Wavelength-Division Multiplexing ITU 100-Ghz grid 15xx.yy nm GBIC. |
|
Catalyst 4500 series switch 1000 Watt AC power supply for chassis 4503, 4506, and 4507R (data only) |
|
Catalyst 4500 series switch 1400 Watt DC triple input power supply (data-only) |
|
Catalyst 4500 series switch 1400 Watt DC power supply with integrated PEM |
|
Catalyst 4500 series switch 1400 Watt AC power supply (data-only) |
|
Catalyst 4500 series switch 1300 Watt AC power supply with integrated voice for chassis 4503, 4506, and 4507R |
|
Catalyst 4500 series switch 2800 Watt AC power supply with integrated voice (data and PoE) for chassis 4503, 4506, and 4507R |
|
Catalyst 4500 series switch 4200 Watt AC dual input power supply with integrated voice (data and PoE) |
|
Catalyst 4500 series switch auxiliary power shelf (25-slot), including one PWR-4502 |
|
Catalyst 4500 series switch auxiliary power shelf redundant power supply |
|
Table 2 briefly describes the supported CWDM wavelengths in the Catalyst 4500E Series Switch.
Table 3 briefly describes the supported DWDM wavelengths in the Catalyst 4500E Series Switch.
For details on DOM support for the Catalyst 4500E Series switches, refer to this URL:
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_6981.html#wp142660
Supported E Series Hardware on Cisco IOS XE Release 3.4.0SG
A brief list of primary E-Series hardware supported by Cisco IOS XE Release 3.4.0SG is shown in Table 4 .
Feature Support by Image Type
Table 5 is a detailed list of features supported on Catalyst 4500E Supervisor Engine 7-E and Supervisor Engine 7L-E running Cisco IOS XE Software Release 3.4.0SG categorized by image type. Please visit Feature Navigator for package details:
http://tools.cisco.com/ITDIT/CFN/
BGP Increased Support of Numbered as-path Access Lists to 500 |
|||
CFM/IEEE 802.1ag - D8.1 standard Compliant CFM, Y.1731 multicast LBM / AIS / RDI / LCK, IP SLA for Ethernet |
|||
Class Based Ethernet CoS Matching & Marking (802.1p & ISL CoS) |
|||
IEEE 802.1s Multiple Spanning Tree (MST) Standard Compliance |
|||
IEEE 802.1t1 |
|||
IEEE 802.3ad Link Aggregation (LACP) Port-Channel Standalone Disable |
|||
IGMP Version 3 - Explicit Tracking of Hosts, Groups, and Channels |
|||
IP Multicast Load Splitting - Equal Cost Multipath (ECMP) using S, G and Next-hop |
|||
IPv6 First Hop Security (FHS): Lightweight DHCPv6 Relay Agent |
|||
IPv6 Multicast: Multicast Listener Discovery (MLD) Protocol, Versions 1 and 2 |
|||
IPv6 Multicast: RPF Flooding of Bootstrap Router (BSR) Packets |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes2 |
|||
IPv6 Services: Cisco Discovery Protocol (CDP) - IPv6 Address Family Support for Neighbor Information |
|||
IPv6 Switching: CEFv6 Switched Automatic IPv4-compatible Tunnels (in software) |
|||
IPv6 Tunneling: Automatic IPv4-compatible Tunnels (in software) |
|||
IPv6 Tunneling: Manually Configured IPv6 over IPv4 Tunnels (in software) |
|||
Medianet: Integrated Video Traffic Simulator (hardware-assisted IP SLA); IPSLA generator and responder |
|||
Medianet: Media Monitoring (Performance Monitoring and Mediatrace) |
|||
NEAT Enhancement: Re-Enabling BPDU Guard Based on User Configuration |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
Yes 2 |
|||
RADIUS Attribute 44 (Accounting Session ID) in Access Requests |
|||
Smart Install Director Support3 |
|||
Source Specific Multicast (SSM) - IGMPv3,IGMP v3lite, and URD |
|||
Time Domain Reflectometry (TDR)4 |
|||
TrustSec: IEEE 802.1ae MACSec encryption on user facing ports |
|||
TrustSec: IEEE 802.1ae MACSec encryption on user facing ports SSO |
|||
TrustSec: IEEE 802.1ae MACSec encryption between switch-to-switch links using Cisco SAP (Security Association Protocol) |
|||
Virtual Switching System (VSS)5 |
|||
MIB Support
For information on MIB support, please refer to this URL:
http://ftp.cisco.com/pub/mibs/supportlists/cat4000/cat4000-supportlist.html
Features Not Supported on the Cisco Catalyst 4500E Series Switch
The following features are not supported on a Catalyst 4500E Series Switch with Supervisor Engine 7-E and Supervisor Engine 7L-E:
Orderable Product Numbers
New and Changed Information
These sections describe the new and changed information for the Catalyst 4500 series switch running Cisco IOS software:
- New Software Features in Release IOS XE 3.4.2SG
- New Hardware Features in Release IOS XE 3.4.2SG
- New Software Features in Release IOS XE 3.4.0SG
- New Hardware Features in Release IOS XE 3.4.0SG
New Software Features in Release IOS XE 3.4.2SG
Release IOS XE 3.4.2SG provides the following new software on Catalyst 4500 Series switches:
New Hardware Features in Release IOS XE 3.4.2SG
Release IOS XE 3.4.0SG provides no new hardware on Catalyst 4500 Series switches.
New Software Features in Release IOS XE 3.4.0SG
Release IOS XE 3.4.0SG provides the following new software on Catalyst 4500 Series switches:
- Virtual Switching System (VSS)
- ISSU—IPv4 Multicast
- ISSU—IPv6 Multicast
- NSF/SSO—IPv4 Multicast
- NSF/SSO—IPv6 Multicast
– Lightweight DHCPv6 Relay Agent (LDRA)
– IPv6 Neighbor Discovery Multicast Suppression
– IPv6 Router Advertisement (RA) Guard
– Secure Shell SSH Version 2 Client Support
– Secure Shell SSH Version 2 Server Support
– SSH Keyboard Interactive Authentication
– SSHv2 Enhancements for RSA Keys
Lower Total Cost of Ownership and Ease of Use
Cisco IOS XE to Cisco IOS Version Number Mapping
As Table 7 shows, each version of Cisco IOS XE has an associated Cisco IOS version:
Upgrading the System Software
If you are upgrading to Cisco IOS XE Version 3.4.0SG and are planning on using VSS, you must upgrade your ROMMON to IOS Version 15.0(1r)SG7. Otherwise, you must upgrade your ROMMON to at least IOS Version 15.0(1r)SG2.
Be aware that you can upgrade a ROMMON image either through a console or telnet.
If dual supervisors are present, first upgrade your software to Cisco IOS XE 3.2.0SG or higher, then upgrade your ROMMON to IOS Version 15.0(1r)SG7 to avoid an uplinks issue (CSCtj54375).
Identifying an +E Chassis and ROMMON
When supervisor engine 1 (sup1) is in ROMMON and supervisor engine 2 (sup2) is in IOS, only sup2 can read the idprom contents of chassis’ idprom. Chassis type is displayed as “+E” in the output of the show version command. Conversely, sup1 can only display the chassis type as “E.”
When both sup1 and sup2 are in ROMMON, both engines can read the chassis’ idprom. Chassis type is displayed correctly as “+E” in the output of the show version command.
When both sup1 and sup2 are in IOS, both engines can read the chassis’ idprom. Chassis type is displayed correctly as “+E” in the output of the show version command.
Limitations and Restrictions
This section list the limitations and restrictions for the current release of Cisco IOS software on the Catalyst 4500E series switch.
- Starting with Release IOS XE 3.3.0SG and IOS 15.1(1)SG, the seven RP restriction was removed.
- The WS-X4712-SFP+E module is not supported in the WS-C4507R-E or WS-C4510R-E chassis and does not boot. This module is supported in the WS-C4503-E, WS-C4506-E, WS-C4507R+E, and WS-C4510R+E chassis.
- More than 16K QoS policies can be configured in software. Only the first 16K are installed in hardware.
- Adjacency learning (through ARP response frames) is restricted to roughly 1000 new adjacencies per second, depending on CPU utilization. This should only impact large networks on the first bootup. After adjacencies are learned they are installed in hardware.
- Multicast fastdrop entries are not created when RPF failure occurs with IPv6 multicast traffic. In a topology where reverse path check failure occurs with IPv6 multicast, this may cause high CPU utilization on the switch.
- The SNMP ceImageFeature object returns a similar feature list for all the three license levels (LAN Base, IP Base, and EntServices). Although the activated feature set for a universal image varies based on the installed feature license, the value displayed by this object is fixed and is not based on the feature license level.
- Standard TFTP implementation limits the maximum size of a file that can be transferred to 32 MB. If ROMMON is used to boot an IOS image that is larger than 32 MB, the TFTP transfer fails at the 65,xxx datagram.
TFTP numbers its datagrams with a 16 bit field, resulting in a maximum of 65,536 datagrams. Because each TFTP datagram is 512 bytes long, the maximum transferable file is 65536 x 512 = 32 MB. If both the TFTP client (ROMMON) and the TFTP server support block number wraparound, no size limitation exists.
Cisco has modified the TFTP client to support block number wraparound. So, if you encounter a transfer failure, use a TFTP server that supports TFTP block number wraparound. Because most implementations of TFTP support block number wraparound, updating the TFTP daemon should fix the issue.
The outputs of certain commands, such as show ip route and show access-lists, contain non-deterministic text. While the output is easily understood, the output text does not contain strings that are consistently output. A general purpose specification file entry is unable to parse all possible output.
While a general purpose specification file entry may not be possible, a specification file entry might be created that returns the desired text by searching for text that is guaranteed to be in the output. If a string is guaranteed to be in the output, it can be used for parsing.
For example, the output of the show ip access-lists SecWiz_Gi3_17_out_ip command is this:
The first line is easily parsed because access list is guaranteed to be in the output:
The remaining lines all contain the term host. As a result, the specification file may report the desired values by specifying that string. For example, this line
will produce the following for the first and second rules
and the following for the third statement
Request the output of the show running-config command using NETCONF and parse that output for the desired strings. This is useful when the desired lines contain nothing in common. For example, the rules in this access list do not contain a common string and the order (three permits, then a deny, then another permit), prevent the spec file entry from using permit as a search string, as in the following example:
The XML output of show running-config command includes the following, which can then be parsed programmatically, as desired:
- When attaching a existing policy-map (that is already applied to a control-port) to another front-panel port, the following message displays:
Workaround: Define a policy-map with a different name and then reattach. CSCti26172
- If the number of unique FNF monitors attached to target exceeds 2048 (one per target), a switch responds slowly:
– Decrease the number of monitors.
– Attach the same monitor to multiple targets. CSCti43798
- ciscoFlashPartitionFileCount object returns an incorrect file count for bootflash:, usb0:, slot0:, slaveslot0:, slavebootflash:, and slaveusb0:.
Workaround: Use the dir device command (for example, dir bootflash:) to obtain the correct file count. CSCti74130
- If multicast is configured and you make changes to the configuration, Traceback and CPUHOG messages are displayed if the following conditions exist:
– At least 10K groups and roughly 20K mroutes exist.
– IGMP joins with source traffic transit to all the multicast groups.
This is caused by the large number of updates generating SPI messages that must be processed by the CPU to ensure that the platform is updated with the changes in all the entries.
- With traffic running, entering clear ip mroute * with larger number of mroutes and over 6 OIFs will cause Malloc Fail messages to display.
You cannot clear a large number of mroutes at one time when traffic is still running.
Workaround: Do not clear all mroutes at once.
- Although you can configure subsecond PIM query intervals on Catalyst 4500 platforms, such an action represents a compromise between convergence (reaction time) and a number of other factors (number of mroutes, base line of CPU utilization, CPU speed, processing overhead per 1 m-route, etc.). You must account for those factors when configuring subsecond PIM timers. We recommend that you set the PIM query interval to a minimum of 2 seconds. By adjusting the available parameters, you can achieve flawless operation; that is, a top number of multicast routes per given convergence time on a specific setup.
- Energywise WOL is not “waking up” a PC in hibernate or standby mode.
Workaround: Use the show version command. CSCtr30294
Workaround: Select an alternate destination or source port. CSCty05405
- When sup1 is in ROMMON and sup2 is in IOS, only sup2 can read the SEEPROM contents of the following chassis components:
– mux-buffer for each linecard slot
On sup1, when the sprom read.. command is entered for any of the above components, the SEEPROM contents are displayed as all “0”s.
When sup1 and sup2 are both in ROMMON (or both in IOS (SSO state)), they can read all SEEPROMs.
– 10/100/1000BaseT Premium POE E Series WS-X4648-RJ45V+E (JAE1348OY52)
– 4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP7-E (CAT1434L0G4)
the following restrictions apply:
– Sub-interfaces are not supported on 1 Gigabit and Ten-Gigabit interfaces.
– Port-channel members do not support multiple classification criteria for a QoS policy.
– CEF is disabled automatically when uRFP is enabled and TCAM is fully utilized.
- When either the RADIUS-server test feature is enabled or RADIUS-server dead-criteria is configured, and either RADIUS-server deadtime is set to 0 or not configured, the RADIUS-server status is not properly relayed to AAA.
Workaround: Configure both dead-criteria and deadtime.
– Links flap for various Layer 3 protocols.
– A traffic loss of several seconds is observed during the upgrade process.
Workaround: Do not use the quick option with the issu changeversion command. CSCto51562
- While configuring an IPv6 access-list, if you specify hardware statistics as the first statement in v6 access-list mode (i.e. before issuing any other v6 ACE statement), it will not take effect. Similarly, your hardware statistics configuration will be missing from the output of the show running command.
You will not experience this behavior with IPv4 access lists.
Workaround: During IPv6 access-list configuration, configure at least one IPv6 ACE before the "hardware statistics" statement. CSCuc53234
- Routed packets that are fragmented are not policed if the egress interface is on the VSS Standby switch. However, if the egress interface is on the VSS Active switch, these packets are policed.
This applies to QoS policing only. QoS marking, shaping and sharing behave as expected.
- When an IPv6 FHS policy is applied on a VLAN and an EtherChannel port is part of that VLAN, packets received by EtherChannel (from neighbors) are not bridged across the local switch.
Workaround: Apply FHS policies on a non EtherChannel port rather than a VLAN. CSCua53148
- During VSS conversion, the switch intended as the Standby device may require up to 9 minutes to reach an SSO state. The boot up time depends on the configuration and on the number of line cards in the system.
- Dual connectors (like, an SFP+ transceiver inserted into a CVR-X2-SFP10G module) on the WS-X4606-X2-E line card are not supported as a VSL.
Workaround: Use any X2-pluggable module on its own in the WS-X4606-X2-E line card. CSCuc70321
- When you connect two PoE-capable Catalyst 4648 or 4748 modules with straight-through copper cabling, the link may flap, and you may observe incorrect PoE status. If the port belongs to an EtherChannel, it will repeatedly unbundle, then bundle.
– Enter the diagnostic dpm-discovery-disable module m command provided you are running Cisco IOS XE Release 3.4.1SG or higher. CSCub74707
- Auto negotiation cannot be disabled on the Fa1 port. It must be set to auto/auto, or fixed speed with duplex auto.
- When performing an ISSU upgrade from a release prior to Cisco IOS 15.1(2)SG to release Cisco IOS 15.1(2)SG or higher, dynamic ACLs are lost after the first switchover.
Workaround: Enter shut then no shut on any port to restart the authentication session and restore the ACL. CSCul20163
- When performing an ISSU between any releases prior to Cisco IOS 15.1(1)SG or 3.3.0SG to release Cisco IOS 15.1(1)SG (or 3.3.0SG) or higher, a switch performing multicast routing may persistently drop traffic after the upgrade completes. You can recover multicast traffic by reloading the chassis. Alternately, you can remove all multicast configuration prior to ISSU, and add it back when ISSU completes. CSCuj42672
Caveats
Caveats describe unexpected behavior in Cisco IOS releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.
Note For the latest information on PSIRTS, refer to the Security Advisories on CCO at the following URL:
http://www.cisco.com/en/US/products/products_security_advisories_listing.html
Cisco Bug Search Tool
The Bug Search Tool (BST) is the online successor to Bug Toolkit and is designed to improve the effectiveness in network risk management and device troubleshooting. The BST allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input. You can access the tool at: https://tools.cisco.com/bugsearch/.
To view the details of a caveat listed in this document:
Resolved Caveats for Cisco IOS XE Release 3.4.9 SG
Resolved Caveats for Cisco IOS XE Release 3.4.8 SG
Resolved Caveats for Cisco IOS XE Release 3.4.7SG
Open Caveats for Cisco IOS XE Release 3.4.6SG
Resolved Caveats for Cisco IOS XE Release 3.4.6SG
Open Caveats for Cisco IOS XE Release 3.4.5SG
Resolved Caveats for Cisco IOS XE Release 3.4.5SG
Open Caveats for Cisco IOS XE Release 3.4.4SG
This section lists the open caveats for Cisco IOS XE Release 3.4.4SG:
- When you enable both Cisco TrustSec and RADIUS accounting, a disparity occurs between the RADIUS client (Cisco switch) and the RADIUS/CTS server in how the authenticator field in the header is computed for DOT1X/RADIUS accounting messages.
A Cisco IOS AAA client uses the PAC secret to compute the authenticator; Cisco Secure ACS 5.2 uses the shared secret. This behavior causes a mismatch that results in a rejection of the accounting message, and the client marks the server as unresponsive.
Workaround: None. You must disable 802.1X accounting. CSCts26844
- When more than one Equal Cost Multipath (ECMP) is available on the downstream switch, and Mediatrace is invoked to provide flow statistics, the dynamic policy does not show statistics for a flow.
Mediatrace cannot find the correct inbound interface and applies the dynamic policy on a different interface from the one used for media flow.
- When you add a "bfd" suffix to the snmp server host x.x.x.x configuration command, the BFD traps, ciscoBfdSessUp and ciscoBfdSessDown, are not generated.
Workaround: Do not specify a "bfd" suffix with the snmp-server host x.x.x.x configuration command. CSCtx51561
- In a multichassis port channel on a VSS system with a very high number of link up and down events that occur within a second and typically causes an error-disable event, only the ports on the active switch are error-disabled due to flaps.
- The following (information-only) error message and traceback may occur during MFIB-to-platform state updates for Bidirectional PIM (*,G/m) entries associated with Bidirectional PIM rendezvous points:
These messages are typically observed during SSO, bootup, or when a PIM-enabled interface undergoes a state transition on a switch containing Bidir PIM state entries.
- Configuring an interface as unidirectional with the unidirectional send-only | receive-only command still allows an interface to send (configured as Send-only Unidirection Ethernet mode) or receive (configured as Receive-only Unidirection Ethernet mode) packets in a bidirectional mode.
Workaround: Use the show spi-fc all command to dump all SPI channel information. CSCuc81286
- You can attach an input QoS policy to VSL member ports, but you cannot detach it. You only can configure VSL ports.
Workaround: Default the VSL member ports and detach the input QoS policy. CSCuc49150
- A device in a guest VLAN that is connected behind a phone capable of 2nd-port-notification experiences packet loss following a SSO failover. The device experiences an authentication restart after the first CDP frame arrives from the phone.
- After performing an ISSU from Cisco IOS Release 3.2.3 to 3.2.7, multicast packet loss is observed after both supervisor engines are running IOS Release 3.2.7
Workaround: Do a switchover. CSCuo18934
- On a VSS active switch, devices (i.e., hosts, phones, or workstations) directly connected to ports Gi1/7/38, Gi1/7/39, Gi1/7/40, Gi1/7/43 on VLAN 34 cannot reach the internet or server.
- Occasionally, when netflow sampling is enabled, LACP requires about 60-70 sec until members are bundled.
Workaround: Disable netflow sampling. CSCtg00542
- Upon adding a new static MAC entry on a Catalyst 4500X VSS running version 3.4.3 and 3.5.x, the switch number is truncated in the running config. Although the entry functions as expected, it displays incorrectly. Upon reload, it encounters an error because the entry is no longer a valid switch, module, or port.
Upon reload, the config errors out
Workaround: After a reload, manually re-add the static entry into the running config. CSCuo60703
The exact triggers are unknown.
Workaround: Reapply the configuration when the switch reboots. CSCum71764
Resolved Caveats for Cisco IOS XE Release 3.4.4SG
This section lists the resolved caveats for Cisco IOS XE Release 3.4.4SG:
- When you configure open authentication and perform SSO, the spanning tree state and MAC address are not synchronized to the new Standby supervisor engine. This behavior interrupts traffic only after the second switchover because the new Standby supervisor engine possesses the wrong state after the initial switchover and the second switchover starts the port in the blocking state.
Workaround: Enter shut and no shut on the port to synchronize the STP state. CSCtf52437
- Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch.
Open Caveats for Cisco IOS XE Release 3.4.3SG
This section lists the open caveats for Cisco IOS XE Release 3.4.3SG:
- When an SNMP query includes the cpmCPUProcessHistoryTable, the query time is very slow, and CPU utilization of the os_info_p process (OS Information provider) increases substantially. The query time of an almost fully populated table is 68 minutes.
- The show ipv6 access-list command displays incorrect match counts when multicast traffic is matched to an IPv6 access list that is attached to an SVI.
- When you configure open authentication and perform SSO, the spanning tree state and MAC address are not synchronized to the new Standby supervisor engine. This behavior interrupts traffic only after the second switchover because the new Standby supervisor engine possesses the wrong state after the initial switchover and the second switchover starts the port in the blocking state.
Workaround: Enter shut and no shut on the port to synchronize the STP state. CSCtf52437
- If you reboot a switch, the configured value of the interface MTU size for the elements of the port channel interface does not work for IPv6 traffic.
Workaround: After the switch reloads, enter shut and no shut on the port-channel interface.
Workaround: Increase the queue limit to at least 256. CSCto57602
- A device in a guest VLAN that is connected behind a phone capable of 2nd-port-notification experiences packet loss following a SSO failover. The device experiences an authentication restart after the first CDP frame arrives from the phone.
- If you perform an OIR on a line card, several %C4K_RKNOVA-4-INVALIDTOKENEXPIRED messages appear in the logs.
- When you enable both Cisco TrustSec and RADIUS accounting, a disparity occurs between the RADIUS client (Cisco switch) and the RADIUS/CTS server in how the authenticator field in the header is computed for DOT1X/RADIUS accounting messages.
A Cisco IOS AAA client uses the PAC secret to compute the authenticator; Cisco Secure ACS 5.2 uses the shared secret. This behavior causes a mismatch that results in a rejection of the accounting message, and the client marks the server as unresponsive.
Workaround: None. You must disable 802.1X accounting. CSCts26844
- When more than one Equal Cost Multipath (ECMP) is available on the downstream switch, and Mediatrace is invoked to provide flow statistics, the dynamic policy does not show statistics for a flow.
Mediatrace cannot find the correct inbound interface and applies the dynamic policy on a different interface from the one used for media flow.
- When a switchover is created on the Mediatrace responder, the dynamic access list created for a monitored flow tuple is not deleted. Although the Mediatrace initiator creates another set of dynamic access lists after the switchover, the old ones remain in the configuration.
Stale dynamic access lists force the system to monitor unwanted traffic.
– If the switchover is scheduled, remove the scheduled session on the initiator and reschedule the session after the new active supervisor engine boots on the responder.
– If the Mediatrace responder SSO is not planned, after the new active supervisor engine boots, manually delete the stale dynamic access lists. CSCty75070
- When you add a "bfd" suffix to the snmp server host x.x.x.x configuration command, the BFD traps, ciscoBfdSessUp and ciscoBfdSessDown, are not generated.
Workaround: Do not specify a "bfd" suffix with the snmp-server host x.x.x.x configuration command. CSCtx51561
- During either a system- or user-initiated reload operation, the following message is observed when the system shuts down:
This message is not observed during a system bootup.
Workaround: None required. This message is information only. CSCtz15738
- In a multichassis port channel on a VSS system with a very high number of link up and down events that occur within a second and typically causes an error-disable event, only the ports on the active switch are error-disabled due to flaps.
Workaround: Use the show spi-fc all command to dump all SPI channel information. CSCuc81286
Workaround: None. The ip pim register-rate-limit command does not function. CSCub32679
- Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch.
Workaround: Enter shut, then no shut to bring up the links. CSCuc37676
- You can attach an input QoS policy to VSL member ports, but you cannot detach it. You only can configure VSL ports.
Workaround: Default the VSL member ports and detach the input QoS policy. CSCuc49150
- When VSS receives a VTP message with information about the creation of 4000 VLANs, traceback and syslog messages (containing EM-4-SEARCH) are displayed.
Workaround: None. You might try reducing the number of VLANs created at one time.
- For packets with the same ingress and egress Layer 3 interface, ingress QoS marking policy does not work.
Workaround: Turn off ICMP redirect through the ip redirect command. CSCua71929
- When the Wireshark feature is applied on a control panel, it fails to capture the correct packets as they travel to the CPU in VSS, under the following conditions:
– Incoming packets on the VSS standby port are directed to the CPU for host learning.
– Layer 3 exceptions occur for packets arriving on the VSS standby port.
– ACL logging occurs on the VSS standby port.
- The POST results on the VSS standby switch displayed by the show diagnostic result module all detail command indicate module number 1 rather than 11. The module number is not interpreted by Cisco IOS.
- The following (information-only) error message and traceback may occur during MFIB-to-platform state updates for Bidirectional PIM (*,G/m) entries associated with Bidirectional PIM rendezvous points:
These messages are typically observed during SSO, bootup, or when a PIM-enabled interface undergoes a state transition on a switch containing Bidir PIM state entries.
Resolved Caveats for Cisco IOS XE Release 3.4.3SG
This section lists the resolved caveats for Cisco IOS XE Release 3.4.3SG:
- On systems performing multicast routing, a brief increase in CPU consumption occurs every few minutes. In large-scale environments, this CPU increase is more noticeable.
- Following a switchover on VSS, CPU may remain high. The show platform cpu packet statistics command displays high usage due to “SA Miss.”
Workaround: Clear the MAC table. CSCuh50329
- A port configured for webauth is not programmed with the default or fallback ACL when sessions enter the INIT state.
- When a device authenticates with dot1x after authenticating with MAB, any policies applied by MAB remain in place.
– Ensure that the dot1x supplicant always authenticates before MAB.
– Create MAB policies for dot1x hosts that do not supply a URL redirect. CSCui79988
- On a Catalyst 4500 VSS using IOS Release XE 3.4.0SG to 3.4.2SG, or 3.5.0E, the show platform command may be truncated with a "Timed out" message and may rarely produce an unexpected reload. The likelihood of a reload increases if the command is issued over an SSH session or if the output is redirected to a file. The same behavior is observed using IOS Release XE 3.5.0 and the show tech command.
Open Caveats for Cisco IOS XE Release 3.4.2SG
This section lists the open caveats for Cisco IOS XE Release 3.4.2SG:
- When an SNMP query includes the cpmCPUProcessHistoryTable, the query time is very slow, and CPU utilization of the os_info_p process (OS Information provider) increases substantially. The query time of an almost fully populated table is 68 minutes.
- The show ipv6 access-list command displays incorrect match counts when multicast traffic is matched to an IPv6 access list that is attached to an SVI.
- When you configure open authentication and perform SSO, the spanning tree state and MAC address are not synchronized to the new Standby supervisor engine. This behavior interrupts traffic only after the second switchover because the new Standby supervisor engine possesses the wrong state after the initial switchover and the second switchover starts the port in the blocking state.
Workaround: Enter shut and no shut on the port to synchronize the STP state. CSCtf52437
- If you reboot a switch, the configured value of the interface MTU size for the elements of the port channel interface does not work for IPv6 traffic.
Workaround: After the switch reloads, enter shut and no shut on the port-channel interface.
Workaround: Increase the queue limit to at least 256. CSCto57602
- A device in a guest VLAN that is connected behind a phone capable of 2nd-port-notification experiences packet loss following a SSO failover. The device experiences an authentication restart after the first CDP frame arrives from the phone.
- If you perform an OIR on a line card, several %C4K_RKNOVA-4-INVALIDTOKENEXPIRED messages appear in the logs.
- When you enable both Cisco TrustSec and RADIUS accounting, a disparity occurs between the RADIUS client (Cisco switch) and the RADIUS/CTS server in how the authenticator field in the header is computed for DOT1X/RADIUS accounting messages.
A Cisco IOS AAA client uses the PAC secret to compute the authenticator; Cisco Secure ACS 5.2 uses the shared secret. This behavior causes a mismatch that results in a rejection of the accounting message, and the client marks the server as unresponsive.
Workaround: None. You must disable 802.1X accounting. CSCts26844
- When more than one Equal Cost Multipath (ECMP) is available on the downstream switch, and Mediatrace is invoked to provide flow statistics, the dynamic policy does not show statistics for a flow.
Mediatrace cannot find the correct inbound interface and applies the dynamic policy on a different interface from the one used for media flow.
- When a switchover is created on the Mediatrace responder, the dynamic access list created for a monitored flow tuple is not deleted. Although the Mediatrace initiator creates another set of dynamic access lists after the switchover, the old ones remain in the configuration.
Stale dynamic access lists force the system to monitor unwanted traffic.
– If the switchover is scheduled, remove the scheduled session on the initiator and reschedule the session after the new active supervisor engine boots on the responder.
– If the Mediatrace responder SSO is not planned, after the new active supervisor engine boots, manually delete the stale dynamic access lists. CSCty75070
- When you add a "bfd" suffix to the snmp server host x.x.x.x configuration command, the BFD traps, ciscoBfdSessUp and ciscoBfdSessDown, are not generated.
Workaround: Do not specify a "bfd" suffix with the snmp-server host x.x.x.x configuration command. CSCtx51561
- During either a system- or user-initiated reload operation, the following message is observed when the system shuts down:
This message is not observed during a system bootup.
Workaround: None required. This message is information only. CSCtz15738
- In a multichassis port channel on a VSS system with a very high number of link up and down events that occur within a second and typically causes an error-disable event, only the ports on the active switch are error-disabled due to flaps.
Workaround: Use the show spi-fc all command to dump all SPI channel information. CSCuc81286
Workaround: None. The ip pim register-rate-limit command does not function. CSCub32679
- Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch.
Workaround: Enter shut, then no shut to bring up the links. CSCuc37676
- You can attach an input QoS policy to VSL member ports, but you cannot detach it. You only can configure VSL ports.
Workaround: Default the VSL member ports and detach the input QoS policy. CSCuc49150
- When VSS receives a VTP message with information about the creation of 4000 VLANs, traceback and syslog messages (containing EM-4-SEARCH) are displayed.
Workaround: None. You might try reducing the number of VLANs created at one time.
- For packets with the same ingress and egress Layer 3 interface, ingress QoS marking policy does not work.
Workaround: Turn off ICMP redirect through the ip redirect command. CSCua71929
- On systems performing multicast routing, a brief increase in CPU consumption occurs every few minutes. In large-scale environments, this CPU increase is more noticeable.
- When the Wireshark feature is applied on a control panel, it fails to capture the correct packets as they travel to the CPU in VSS, under the following conditions:
– Incoming packets on the VSS standby port are directed to the CPU for host learning.
– Layer 3 exceptions occur for packets arriving on the VSS standby port.
– ACL logging occurs on the VSS standby port.
- The POST results on the VSS standby switch displayed by the show diagnostic result module all detail command indicate module number 1 rather than 11. The module number is not interpreted by Cisco IOS.
- The following (information-only) error message and traceback may occur during MFIB-to-platform state updates for Bidirectional PIM (*,G/m) entries associated with Bidirectional PIM rendezvous points:
These messages are typically observed during SSO, bootup, or when a PIM-enabled interface undergoes a state transition on a switch containing Bidir PIM state entries.
- Configuring an interface as unidirectional with the unidirectional send-only | receive-only command still allows an interface to send (configured as Send-only Unidirection Ethernet mode) or receive (configured as Receive-only Unidirection Ethernet mode) packets in a bidirectional mode.
- Following a switchover on VSS, CPU may remain high. The show platform cpu packet statistics command displays high usage due to “SA Miss.”
Workaround: Clear the MAC table. CSCuh50329
- A port configured for webauth is not programmed with the default or fallback ACL when sessions enter the INIT state.
- When a device authenticates with dot1x after authenticating with MAB, any policies applied by MAB remain in place.
– Ensure that the dot1x supplicant always authenticates before MAB.
– Create MAB policies for dot1x hosts that do not supply a URL redirect. CSCui79988
- On a Catalyst 4500 VSS using IOS Release XE 3.4.0SG to 3.4.2SG, or 3.5.0E, the show platform command may be truncated with a "Timed out" message and may rarely produce an unexpected reload. The likelihood of a reload increases if the command is issued over an SSH session or if the output is redirected to a file. The same behavior is observed using IOS Release XE 3.5.0 and the show tech command.
Resolved Caveats for Cisco IOS XE Release 3.4.2SG
This section lists the resolved caveats for Cisco IOS XE Release 3.4.2SG:
- A GLC-GE-100FX pluggable may not operate when used in WS-X4624-SFP-E, WS-X4640-CSFP-E or WS-X4612-SFP-E modules.
- The switch may reload unexpectedly or become inaccessible when the integrated web server is used, either through direct web access to the switch, or indirectly through the webauth feature.
Workaround: Enter either the no ip http server or the no ip http secure-server command. This disables the http/s server. CSCui14525
Open Caveats for Cisco IOS XE Release 3.4.1SG
This section lists the open caveats for Cisco IOS XE Release 3.4.1SG:
- When an SNMP query includes the cpmCPUProcessHistoryTable, the query time is very slow, and CPU utilization of the os_info_p process (OS Information provider) increases substantially. The query time of an almost fully populated table is 68 minutes.
- The show ipv6 access-list command displays incorrect match counts when multicast traffic is matched to an IPv6 access list that is attached to an SVI.
- When you configure open authentication and perform SSO, the spanning tree state and MAC address are not synchronized to the new Standby supervisor engine. This behavior interrupts traffic only after the second switchover because the new Standby supervisor engine possesses the wrong state after the initial switchover and the second switchover starts the port in the blocking state.
Workaround: Enter shut and no shut on the port to synchronize the STP state. CSCtf52437
- If you reboot a switch, the configured value of the interface MTU size for the elements of the port channel interface does not work for IPv6 traffic.
Workaround: After the switch reloads, enter shut and no shut on the port-channel interface.
Workaround: Increase the queue limit to at least 256. CSCto57602
- A device in a guest VLAN that is connected behind a phone capable of 2nd-port-notification experiences packet loss following a SSO failover. The device experiences an authentication restart after the first CDP frame arrives from the phone.
- If you perform an OIR on a line card, several %C4K_RKNOVA-4-INVALIDTOKENEXPIRED messages appear in the logs.
- When you enable both Cisco TrustSec and RADIUS accounting, a disparity occurs between the RADIUS client (Cisco switch) and the RADIUS/CTS server in how the authenticator field in the header is computed for DOT1X/RADIUS accounting messages.
A Cisco IOS AAA client uses the PAC secret to compute the authenticator; Cisco Secure ACS 5.2 uses the shared secret. This behavior causes a mismatch that results in a rejection of the accounting message, and the client marks the server as unresponsive.
Workaround: None. You must disable 802.1X accounting. CSCts26844
- When more than one Equal Cost Multipath (ECMP) is available on the downstream switch, and Mediatrace is invoked to provide flow statistics, the dynamic policy does not show statistics for a flow.
Mediatrace cannot find the correct inbound interface and applies the dynamic policy on a different interface from the one used for media flow.
- When a switchover is created on the Mediatrace responder, the dynamic access list created for a monitored flow tuple is not deleted. Although the Mediatrace initiator creates another set of dynamic access lists after the switchover, the old ones remain in the configuration.
Stale dynamic access lists force the system to monitor unwanted traffic.
– If the switchover is scheduled, remove the scheduled session on the initiator and reschedule the session after the new active supervisor engine boots on the responder.
– If the Mediatrace responder SSO is not planned, after the new active supervisor engine boots, manually delete the stale dynamic access lists. CSCty75070
- When you add a "bfd" suffix to the snmp server host x.x.x.x configuration command, the BFD traps, ciscoBfdSessUp and ciscoBfdSessDown, are not generated.
Workaround: Do not specify a "bfd" suffix with the snmp-server host x.x.x.x configuration command. CSCtx51561
- During either a system- or user-initiated reload operation, the following message is observed when the system shuts down:
This message is not observed during a system bootup.
Workaround: None required. This message is information only. CSCtz15738
- In a multichassis port channel on a VSS system with a very high number of link up and down events that occur within a second and typically causes an error-disable event, only the ports on the active switch are error-disabled due to flaps.
Workaround: Use the show spi-fc all command to dump all SPI channel information. CSCuc81286
Workaround: None. The ip pim register-rate-limit command does not function. CSCub32679
- Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch.
Workaround: Enter shut, then no shut to bring up the links. CSCuc37676
- You can attach an input QoS policy to VSL member ports, but you cannot detach it. You only can configure VSL ports.
Workaround: Default the VSL member ports and detach the input QoS policy. CSCuc49150
- When VSS receives a VTP message with information about the creation of 4000 VLANs, traceback and syslog messages (containing EM-4-SEARCH) are displayed.
Workaround: None. You might try reducing the number of VLANs created at one time.
- For packets with the same ingress and egress Layer 3 interface, ingress QoS marking policy does not work.
Workaround: Turn off ICMP redirect through the ip redirect command. CSCua71929
- On systems performing multicast routing, a brief increase in CPU consumption occurs every few minutes. In large-scale environments, this CPU increase is more noticeable.
- When the Wireshark feature is applied on a control panel, it fails to capture the correct packets as they travel to the CPU in VSS, under the following conditions:
– Incoming packets on the VSS standby port are directed to the CPU for host learning.
– Layer 3 exceptions occur for packets arriving on the VSS standby port.
– ACL logging occurs on the VSS standby port.
- The POST results on the VSS standby switch displayed by the show diagnostic result module all detail command indicate module number 1 rather than 11. The module number is not interpreted by Cisco IOS.
- The following (information-only) error message and traceback may occur during MFIB-to-platform state updates for Bidirectional PIM (*,G/m) entries associated with Bidirectional PIM rendezvous points:
These messages are typically observed during SSO, bootup, or when a PIM-enabled interface undergoes a state transition on a switch containing Bidir PIM state entries.
- Configuring an interface as unidirectional with the unidirectional send-only | receive-only command still allows an interface to send (configured as Send-only Unidirection Ethernet mode) or receive (configured as Receive-only Unidirection Ethernet mode) packets in a bidirectional mode.
- The switch may reload unexpectedly or become inaccessible when the integrated web server is used, either through direct web access to the switch, or indirectly through the webauth feature.
Workaround: Enter either the no ip http server or the no ip http secure-server command. This disables the http/s server. CSCui14525
- A GLC-GE-100FX pluggable may not operate when used in WS-X4624-SFP-E, WS-X4640-CSFP-E or WS-X4612-SFP-E modules.
- Following a switchover on VSS, CPU may remain high. The show platform cpu packet statistics command displays high usage due to “SA Miss.”
Workaround: Clear the MAC table. CSCuh50329
- A port configured for webauth is not programmed with the default or fallback ACL when sessions enter the INIT state.
- When a device authenticates with dot1x after authenticating with MAB, any policies applied by MAB remain in place.
– Ensure that the dot1x supplicant always authenticates before MAB.
– Create MAB policies for dot1x hosts that do not supply a URL redirect. CSCui79988
- On a Catalyst 4500 VSS using IOS Release XE 3.4.0SG to 3.4.2SG, or 3.5.0E, the show platform command may be truncated with a "Timed out" message and may rarely produce an unexpected reload. The likelihood of a reload increases if the command is issued over an SSH session or if the output is redirected to a file. The same behavior is observed using IOS Release XE 3.5.0 and the show tech command.
Resolved Caveats for Cisco IOS XE Release 3.4.1SG
This section lists the resolved caveats for Cisco IOS XE Release 3.4.1SG:
- With IGMP snooping enabled, multicast traffic received through a tunnel interface is not forwarded through the Outgoing Interface List.
Workaround: Disable IGMP snooping. CSCuc65538
- When MLD snooping is enabled, control-plane policing on IPv6 ND packets stops working. This does not impact other control packets.
- When a port connected to a CDP, DHCP, or LLDP speaker goes down, a small memory leak occurs (typically less than 300 bytes).
Workaround: Disable these protocols on interfaces that might flap frequently. CSCub85948
- VSS allows you to configure the router MAC address that is used by spanning tree to calculate its bridge ID. When a switchover occurs, this MAC address is retained at the newly active switch. However, the spanning tree bridge ID changes because it uses the local chassis MAC address, instead of the configured router MAC address, to calculate the bridge ID.
Workaround: Ensure that the spanning-tree root is configured in the network. This avoids a topology change. CSCud94151.
- The show inventory command does not display mux buffers information on the local chassis after a switchover although this information is displayed prior to a switchover.
Workaround: Enter the show idprom muxbuffer command to display the missing information. CSCuc79728
- When the VSS active switch is running and the VSS standby switch is booting, ports on the standby switch boot long before the control plane is fully functional. This may cause channel ports on the standby switch to start working in independent mode before the channel ports are bundled.
Workaround: Do not configure LACP independent mode. Because the PAgP does not have a workaround, it may cause a traffic loss of several seconds until the ports are bundled. This situation occurs only when a switch is booting; it does not apply to a port going down and coming up after bootup. CSCud94258.
- If REP is configured on a dot1q trunk and the native VLAN is administratively set to something other then the default, REP packets are not sent on the native VLAN
Workaround: Retain the trunk native VLAN as 1. CSCud05521
- When a session is neither authenticated nor granted fallback authorization (e.g. by entering guest-vlan or auth-fail-vlan) in multi-auth mode, unauthenticated sessions remain indefinitely and are not cleared by the system.
Workaround: Clear sessions manually with the clear authentication sessions command. CSCtg15739
- redirect-url and redirect-acl are not cleared after a successful CoA, causing the final step of Central Web Authentication to fail.
Workaround: Return a dACL in the authorization profile with successful guest authentication.
- If URL redirect installed as part of authorization and either of the following occurs, memory will be leaked:
– a fast stream of traffic matches the URL redirect ACL as IPDT clears an address,
– a traffic stream matches the URL redirect ACL and no URL redirect policy is installed for that IP address,
If this occurs repeatedly, IPDT and other control packet processing ultimately ceases.
Workaround: If this behavior completely fills the CPU buffer, the switch must be reloaded. However, the frequency of encountering a stuck queue can be reduced to nearly zero by modifying the URL redirect ACL to permit only 80/443 traffic. CSCug56646
- If a dACL name is too long (about 24 characters, depending on the interface where it is applied), the ACL will be incorrectly shared over multiple ports.
Workaround: Shorten the dACL name. CSCug78653
- On a switches polled for OIDs under CISCO-PROCESS-MIB and running IOS Release XE 3.3.0SG, 3.3.1SG, 3.3.2SG or 3.4.0SG, the show process memory sorted command displays an increasing memory usage by the eicored process.
Workaround: Exclude polling of the CISCO-PROCESS-MIB using an SNMP view:
- Whenever a S,G entry expires, a switch shows increasing memory utilization in by the MFIB_mrib/read/write process.
Workaround: Minimize leak by avoiding S,G deletion events:
– Extend the receiver-less S,G duration (e.g. ip pim sparse sg-expiry-timer <big value>).
– If sources are varied, try to minimize them.
– If some static sources send infrequently, extend the expiry timer to cover the gaps in the packet stream.
– If some receivers are unreliable, consider static joins.
– Minimize Layer 2 or Layer 3 topology changes that would require multicast reconvergence.
– Avoid manually clearing mroutes. CSCua62262
- A switch running IOS Release XE 3.4.0SG loses all Layer 3 connectivity to or from the switch IP address. Switching is unaffected, but routed IP traffic (snmp, ntp, telnet, ssh, etc.) is affected.
Workaround: Once the problem occurs, reboot the switch.
Disabling Fa1 prevents the problem. CSCue76243
- A switch running IOS Release 3.3.0SG, 3.3.1SG, 3.3.2SG or 3.4.0SG drops some fragmented packets that are routed through the switch. Bridged traffic is unaffected.
- SNMPGET queries for CISCO-PROCESS-MIB fail with the message "No Such Instance currently exists at this OID."
Workaround: Use SNMPWALK. CSCtz67068
- If a switch issues CLI commands at a high rate (usually by script), it crashes with a message like the following:
Workaround: Avoid scripted CLI. CSCtz19897
Open Caveats for Cisco IOS XE Release 3.4.0SG
This section lists the open caveats for Cisco IOS XE Release 3.4.0SG:
- When an SNMP query includes the cpmCPUProcessHistoryTable, the query time is very slow, and CPU utilization of the os_info_p process (OS Information provider) increases substantially. The query time of an almost fully populated table is 68 minutes.
- The show ipv6 access-list command displays incorrect match counts when multicast traffic is matched to an IPv6 access list that is attached to an SVI.
- When you configure open authentication and perform SSO, the spanning tree state and MAC address are not synchronized to the new Standby supervisor engine. This behavior interrupts traffic only after the second switchover because the new Standby supervisor engine possesses the wrong state after the initial switchover and the second switchover starts the port in the blocking state.
Workaround: Enter shut and no shut on the port to synchronize the STP state. CSCtf52437
- If you reboot a switch, the configured value of the interface MTU size for the elements of the port channel interface does not work for IPv6 traffic.
Workaround: After the switch reloads, enter shut and no shut on the port-channel interface.
Workaround: Increase the queue limit to at least 256. CSCto57602
- A device in a guest VLAN that is connected behind a phone capable of 2nd-port-notification experiences packet loss following a SSO failover. The device experiences an authentication restart after the first CDP frame arrives from the phone.
- If you perform an OIR on a line card, several %C4K_RKNOVA-4-INVALIDTOKENEXPIRED messages appear in the logs.
- When you enable both Cisco TrustSec and RADIUS accounting, a disparity occurs between the RADIUS client (Cisco switch) and the RADIUS/CTS server in how the authenticator field in the header is computed for DOT1X/RADIUS accounting messages.
A Cisco IOS AAA client uses the PAC secret to compute the authenticator; Cisco Secure ACS 5.2 uses the shared secret. This behavior causes a mismatch that results in a rejection of the accounting message, and the client marks the server as unresponsive.
Workaround: None. You must disable 802.1X accounting. CSCts26844
- When more than one Equal Cost Multipath (ECMP) is available on the downstream switch, and Mediatrace is invoked to provide flow statistics, the dynamic policy does not show statistics for a flow.
Mediatrace cannot find the correct inbound interface and applies the dynamic policy on a different interface from the one used for media flow.
- When a switchover is created on the Mediatrace responder, the dynamic access list created for a monitored flow tuple is not deleted. Although the Mediatrace initiator creates another set of dynamic access lists after the switchover, the old ones remain in the configuration.
Stale dynamic access lists force the system to monitor unwanted traffic.
– If the switchover is scheduled, remove the scheduled session on the initiator and reschedule the session after the new active supervisor engine boots on the responder.
– If the Mediatrace responder SSO is not planned, after the new active supervisor engine boots, manually delete the stale dynamic access lists. CSCty75070
- Configuring an interface as unidirectional with the unidirectional send-only | receive-only command still allows an interface to send (configured as Send-only Unidirection Ethernet mode) or receive (configured as Receive-only Unidirection Ethernet mode) packets in a bidirectional mode.
- When you add a "bfd" suffix to the snmp server host x.x.x.x configuration command, the BFD traps, ciscoBfdSessUp and ciscoBfdSessDown, are not generated.
Workaround: Do not specify a "bfd" suffix with the snmp-server host x.x.x.x configuration command. CSCtx51561
- During either a system- or user-initiated reload operation, the following message is observed when the system shuts down:
This message is not observed during a system bootup.
Workaround: None required. This message is information only. CSCtz15738
- In a multichassis port channel on a VSS system with a very high number of link up and down events that occur within a second and typically causes an error-disable event, only the ports on the active switch are error-disabled due to flaps.
Workaround: Use the show spi-fc all command to dump all SPI channel information. CSCuc81286
Workaround: None. The ip pim register-rate-limit command does not function. CSCub32679
- Packets that are routed on the same Layer 3 interface (or SVI) that entered on are dropped if received on the VSS standby switch.
Workaround: Enter shut, then no shut to bring up the links. CSCuc37676
- You can attach an input QoS policy to VSL member ports, but you cannot detach it. You only can configure VSL ports.
Workaround: Default the VSL member ports and detach the input QoS policy. CSCuc49150
- With IGMP snooping enabled, multicast traffic received through a tunnel interface is not forwarded through the Outgoing Interface List.
Workaround: Disable IGMP snooping. CSCuc65538
- When VSS receives a VTP message with information about the creation of 4000 VLANs, traceback and syslog messages (containing EM-4-SEARCH) are displayed.
Workaround: None. You might try reducing the number of VLANs created at one time.
- For packets with the same ingress and egress Layer 3 interface, ingress QoS marking policy does not work.
Workaround: Turn off ICMP redirect through the ip redirect command. CSCua71929
- On systems performing multicast routing, a brief increase in CPU consumption occurs every few minutes. In large-scale environments, this CPU increase is more noticeable.
- When the Wireshark feature is applied on a control panel, it fails to capture the correct packets as they travel to the CPU in VSS, under the following conditions:
– Incoming packets on the VSS standby port are directed to the CPU for host learning.
– Layer 3 exceptions occur for packets arriving on the VSS standby port.
– ACL logging occurs on the VSS standby port.
- The POST results on the VSS standby switch displayed by the show diagnostic result module all detail command indicate module number 1 rather than 11. The module number is not interpreted by Cisco IOS.
- The show inventory command does not display mux buffers information on the local chassis after a switchover although this information is displayed prior to a switchover.
Workaround: Enter the show idprom muxbuffer command to display the missing information. CSCuc79728
- The following (information-only) error message and traceback may occur during MFIB-to-platform state updates for Bidirectional PIM (*,G/m) entries associated with Bidirectional PIM rendezvous points:
These messages are typically observed during SSO, bootup, or when a PIM-enabled interface undergoes a state transition on a switch containing Bidir PIM state entries.
- When a port connected to a CDP, DHCP, or LLDP speaker goes down, a small memory leak occurs (typically less than 300 bytes).
Workaround: Disable these protocols on interfaces that might flap frequently. CSCub85948
- VSS allows you to configure the router MAC address that is used by spanning tree to calculate its bridge ID. When a switchover occurs, this MAC address is retained at the newly active switch. However, the spanning tree bridge ID changes because it uses the local chassis MAC address, instead of the configured router MAC address, to calculate the bridge ID.
Workaround: Ensure that the spanning-tree root is configured in the network. This avoids a topology change. CSCud94151.
- When the VSS active switch is running and the VSS standby switch is booting, ports on the standby switch boot long before the control plane is fully functional. This may cause channel ports on the standby switch to start working in independent mode before the channel ports are bundled.
Workaround: Do not configure LACP independent mode. Because the PAgP does not have a workaround, it may cause a traffic loss of several seconds until the ports are bundled. This situation occurs only when a switch is booting; it does not apply to a port going down and coming up after bootup. CSCud94258.
- When a port connected to a CDP, DHCP, or LLDP speaker goes down, a small memory leak occurs (typically less than 300 bytes).
Workaround: Disable these protocols on interfaces that might flap frequently. CSCub85948
- When MLD snooping is enabled, control-plane policing on IPv6 ND packets stops working. This does not impact other control packets.
- If REP is configured on a dot1q trunk and the native VLAN is administratively set to something other then the default, REP packets are not sent on the native VLAN
Workaround: Retain the trunk native VLAN as 1. CSCud05521
- When a session is neither authenticated nor granted fallback authorization (e.g. by entering guest-vlan or auth-fail-vlan) in multi-auth mode, unauthenticated sessions remain indefinitely and are not cleared by the system.
Workaround: Clear sessions manually with the clear authentication sessions command. CSCtg15739
- redirect-url and redirect-acl are not cleared after a successful CoA, causing the final step of Central Web Authentication to fail.
Workaround: Return a dACL in the authorization profile with successful guest authentication.
- If URL redirect installed as part of authorization and either of the following occurs, memory will be leaked:
– a fast stream of traffic matches the URL redirect ACL as IPDT clears an address,
– a traffic stream matches the URL redirect ACL and no URL redirect policy is installed for that IP address,
If this occurs repeatedly, IPDT and other control packet processing ultimately ceases.
Workaround: If this behavior completely fills the CPU buffer, the switch must be reloaded. However, the frequency of encountering a stuck queue can be reduced to nearly zero by modifying the URL redirect ACL to permit only 80/443 traffic. CSCug56646
- If a dACL name is too long (about 24 characters, depending on the interface where it is applied), the ACL will be incorrectly shared over multiple ports.
Workaround: Shorten the dACL name. CSCug78653
- On a switches polled for OIDs under CISCO-PROCESS-MIB and running IOS Release XE 3.3.0SG, 3.3.1SG, 3.3.2SG or 3.4.0SG, the show process memory sorted command displays an increasing memory usage by the eicored process.
Workaround: Exclude polling of the CISCO-PROCESS-MIB using an SNMP view:
- Whenever a S,G entry expires, a switch shows increasing memory utilization in by the MFIB_mrib/read/write process.
Workaround: Minimize leak by avoiding S,G deletion events:
– Extend the receiver-less S,G duration (e.g. ip pim sparse sg-expiry-timer <big value>).
– If sources are varied, try to minimize them.
– If some static sources send infrequently, extend the expiry timer to cover the gaps in the packet stream.
– If some receivers are unreliable, consider static joins.
– Minimize Layer 2 or Layer 3 topology changes that would require multicast reconvergence.
– Avoid manually clearing mroutes. CSCua62262
- A switch running IOS Release XE 3.4.0SG loses all Layer 3 connectivity to or from the switch IP address. Switching is unaffected, but routed IP traffic (snmp, ntp, telnet, ssh, etc.) is affected.
Workaround: Once the problem occurs, reboot the switch.
Disabling Fa1 prevents the problem. CSCue76243
- A switch running IOS Release 15.1(1)SG, 15.1(1)SG1, 15.1(1)SG2, or 15.1(2)SG, drops some fragmented packets that are routed through the switch. Bridged traffic is unaffected.
- SNMPGET queries for CISCO-PROCESS-MIB fail with the message "No Such Instance currently exists at this OID."
Workaround: Use SNMPWALK. CSCtz67068
- If a switch issues CLI commands at a high rate (usually by script), it crashes with a message like the following:
Workaround: Avoid scripted CLI. CSCtz19897
This behavior is not observed on Supervisor Engine 7-E.
- From Cisco IOS Release XE 3.2.0 onwards, configuring an interface as uni-directional with the unidirectional send-only | receive-only command, still allows the interface to send or receive packets in a bi-directional mode. An interface that is configured as "Send-only Unidirection Ethernet mode" receives the packets; an interface configured as "Receive-only Unidirection Ethernet mode" sends the packets.
- A GLC-GE-100FX pluggable may not operate when used in WS-X4624-SFP-E, WS-X4640-CSFP-E or WS-X4612-SFP-E modules.
- Following a switchover on VSS, CPU may remain high. The show platform cpu packet statistics command displays high usage due to “SA Miss.”
Workaround: Clear the MAC table. CSCuh50329
- On a Catalyst 4500 VSS using IOS Release XE 3.4.0SG to 3.4.2SG, or 3.5.0E, the show platform command may be truncated with a "Timed out" message and may rarely produce an unexpected reload. The likelihood of a reload increases if the command is issued over an SSH session or if the output is redirected to a file. The same behavior is observed using IOS Release XE 3.5.0 and the show tech command.
Resolved Caveats for Cisco IOS XE Release 3.4.0SG
This section lists the resolved caveats for Cisco IOS XE Release 3.4.0SG:
- Following an upgrade to IOS Release XE 3.3.1SG, the following error messages might display for switches with PWR-C45-4200ACV power supplies:
Use the show power command to determine whether 220V inputs are incorrectly detected as “off” or 110V.
Workaround: Unseat or reseat the impacted power supply and turn on the input power. CSCuc50555.
- Dynamic ACLs do not function correctly if they have advanced operators, including dscp/ipp/tos, log/log-input, fragments, and TCP flag operators.
Workaround: Remove these operators from any dynamic ACLs. CSCts05302
- A peer policy is not updated after reauthentication if the policy is changed on the AS beforehand. After reauthentication, the original peer policy is retained.
Workaround: Enter shut and no shut on the port. CSCts29515
- A switch running a Supervisor Engine 7-E or Supervisor Engine 7L-E fails if you enter show memory debug leak on the console while show memory detailed process iosd debug leaks is being executed from another Telnet session.
Workaround: Avoid running both commands simultaneously. CSCty27680
Related Documentation
Refer to the following documents for additional Catalyst 4500 series information:
http://www.cisco.com//en/US/products/hw/switches/ps4324/index.html
Hardware Documents
Installation guides and notes including specifications and relevant safety information are available at the following URLs:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/catalyst4500e/installation/guide/Eseries.html
- For information about individual switching modules and supervisors, refer to the Catalyst 4500 Series Module Installation Guide at:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configuration/notes/OL_25315.html
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/regulatory/compliance/78_13233.html
http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_installation_guides_list.html
Software Documentation
Software release notes, configuration guides, command references, and system message guides are available at the following URLs:
http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_release_notes_list.html
Software documents for the Catalyst 4500 Classic, Catalyst 4500 E-Series, Catalyst 4900 Series, and Catalyst 4500-X Series switches are available at the following URLs:
http://www.cisco.com/en/US/products/hw/switches/ps4324/products_installation_and_configuration_guides_list.html
http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_command_reference_list.html
http://www.cisco.com/en/US/products/hw/switches/ps4324/products_system_message_guides_list.html
Cisco IOS Documentation
Platform- independent Cisco IOS documentation may also apply to the Catalyst 4500 and 4900 switches. These documents are available at the following URLs:
http://www.cisco.com/en/US/products/ps6350/products_installation_and_configuration_guides_list.html
http://www.cisco.com/en/US/products/ps6350/prod_command_reference_list.html
You can also use the Command Lookup Tool at:
http://tools.cisco.com/Support/CLILookup/cltSearchAction.do
http://www.cisco.com/en/US/products/ps6350/products_system_message_guides_list.html
You can also use the Error Message Decoder tool at:
http://www.cisco.com/pcgi-bin/Support/Errordecoder/index.cgi
Notices
The following notices pertain to this software license.
OpenSSL/Open SSL Project
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit ( http://www.openssl.org/).
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).
This product includes software written by Tim Hudson (tjh@cryptsoft.com).
License Issues
The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. Actually both licenses are BSD-style Open Source licenses. In case of any license issues related to OpenSSL please contact openssl-core@openssl.org.
Copyright © 1998-2007 The OpenSSL Project. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following acknowledgment: “This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit ( http://www.openssl.org/)”.
4. The names “OpenSSL Toolkit” and “OpenSSL Project” must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact openssl-core@openssl.org.
5. Products derived from this software may not be called “OpenSSL” nor may “OpenSSL” appear in their names without prior written permission of the OpenSSL Project.
6. Redistributions of any form whatsoever must retain the following acknowledgment:
“This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit ( http://www.openssl.org/)”.
THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT “AS IS”' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com).
Copyright © 1995-1998 Eric Young (eay@cryptsoft.com). All rights reserved.
This package is an SSL implementation written by Eric Young (eay@cryptsoft.com).
The implementation was written so as to conform with Netscapes SSL.
This library is free for commercial and non-commercial use as long as the following conditions are adhered to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com).
Copyright remains Eric Young’s, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following acknowledgement:
“This product includes cryptographic software written by Eric Young (eay@cryptsoft.com)”.
The word ‘cryptographic’ can be left out if the routines from the library being used are not cryptography-related.
4. If you include any Windows specific code (or a derivative thereof) from the apps directory (application code) you must include an acknowledgement: “This product includes software written by Tim Hudson (tjh@cryptsoft.com)”.
THIS SOFTWARE IS PROVIDED BY ERIC YOUNG “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
The license and distribution terms for any publicly available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution license [including the GNU Public License].
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.
This document is to be used in conjunction with the documents listed in the “Notices” section.
CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers, Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
FeedbackContact Cisco
- Open a Support Case
- (Requires a Cisco Service Contract)