Cisco 1700 Series - Cisco IOS Release 12.2(11)YV
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Table Of Contents
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(11)YV
Determining the Software Version
Upgrading to a New Software Release
New Software Features in Release 12.2(11)YV
New Software Features in Release 12.2(11)T
Resolved Caveats - Release 12.2(11)YV2
Open Caveats for Release 12.2(11)YV
Obtaining Technical Assistance
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(11)YV
July 29, 2003
These release notes describe new features and significant software components for the Cisco 1700 series routers that support Cisco IOS Release 12.2 T, up to and including Release 12.2(11)YV2. These release notes are updated as needed to describe new memory requirements, new features, new hardware support, software platform deferrals, microcode or modem code changes, related document changes, and any other important changes. Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release 12.2 T located on Cisco.com and the Documentation CD.
For a list of the software caveats that apply to Release 12.2(11)YV2, see the "Caveats" and the online Caveats for Cisco IOS Release 12.2 T document. The caveats document is updated for every 12.2 T maintenance release and is located on Cisco.com and the Documentation CD.
Contents
These release notes discuss the following topics:
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Obtaining Technical Assistance
System Requirements
This section describes the system requirements for Release 12.2(11)YV2 and includes the following sections:
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Memory Requirements
This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(11)YV2 on the Cisco 1700 series routers.
Hardware Supported
Cisco IOS Release 12.2(11)YV2 supports the following Cisco 1700 series routers:
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The Cisco 1710 and Cisco 1721routers run data images only. The Cisco 1751, 1751-V, 1760, and 1760-V routers run data or data-and-voice images, providing digital and analog voice support.
For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to the Cisco 1700 series routers, which are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htmThis URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1700 Series Routers: <platform_name>Determining the Software Version
To determine which version of Cisco IOS software currently running on your Cisco 1700 series router, log in to the router and enter the show version EXEC command. The following sample output from the show version command indicates the version number.
router> show versionCisco Internetwork Operating System SoftwareIOS (tm) C1700 Software (C1700-NY-MZ), Version 12.2(11)YV2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)Synched to technology version 12.2(13.1u)TUpgrading to a New Software Release
For general information about upgrading to a new software release, see Software Installation and Upgrade Procedures located at http://www.cisco.com/warp/public/130/upgrade_index.shtml.
Feature Set Tables
The Cisco IOS software is packaged in feature sets consisting of software images, depending on the platform. Each feature set contains a specific set of Cisco IOS features. Release 12.2(11)YV2 supports the same feature sets as Releases 12.2 and 12.2(8)T, but Release 12.2(11)YV2 includes new features supported by the Cisco 1700 series routers.
Caution
Table 2 lists the features and feature sets supported in Cisco IOS Release 12.2(11)YV2.
The table uses the following conventions:
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Table 2 Feature List by Feature Set for Cisco 1710 Routers
IBM/FW/IDS PLUS IPSEC 3DESChannel bank
12.2(11)YV
No
No
New and Changed Information
The following sections list the new software features supported by the Cisco 1700 series routers for Release 12.2(11)YV2.
New Software Features in Release 12.2(11)YV
The following sections describe the new software features supported by the Cisco 1700 series routers for Release 12.2(11)YV.
Channel Bank
The channel bank feature provides support for the time-division multiplexing (TDM) cross-connect functionality on the Cisco 1760 router between analog voice ports and digital DS0s. This feature will provide support for 2 to 6 ports cross connected to a T1 channel associated signal (CAS) using a 2-port Voice Interface Card (VIC), and a maximum of 12 ports using a 4-port VIC.
To establish a channel bank connection between an analog voice port and a T1 DS0, configure the connect command in the global configuration mode. To verify the channel bank connection, use show connection all command.
Syntax
connect connection name voice-port analog voice port T1 T1 endpoint
no connect connection name [voice-port analog voice port T1 T1 endpoint]
connection name ::= name string
analog voice port ::= slot number of port/port number of port
T1 endpoint ::= slot number of controller/port number of controller DS0-group number
The DS0 group must contain only one time slot. The signaling type of the DS0 group must match that of the analog voice port.
The channel bank feature is not supported on the Cisco 1751 router.
Configuration Example
In the following example, E&M port 2/1 is configured for a Channel Bank connection with timeslot 1 on T1 1/0.
!(config)#controller T1 1/0(config-controller)#ds0-group 1 timeslot 1 type e&m-wink(config-controller)#exit(config)#voice-port 2/1(config-voiceport)#operation 4-wire(config-voiceport)#type 2(config-voiceport)#signal wink(config-voiceport)#exit(config)#connect connect2 voice-port 2/1 T1 1/0 1(config-ipm_dsprm-conn)#end!To verify the channel bank connection:
!#show connection ?all All Connectionselements Show Connection Elementsid ID Numbername Connection Nameport Port Number#show connection allID Name Segment 1 Segment 2 State===============================================================5 connect1 voice-port 2/0 T1 1/0 01 UP!New Software Features in Release 12.2(11)T
For information regarding the features supported in Cisco IOS Release 12.2 T, refer to the Cross-Platform Release Notes and New Feature Documentation links at the following location on Cisco.com:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/xprn122t/index.htm
This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click the following path:
Service & Support: Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cross-Platform Release Notes (Cisco IOS Release 12.2T)
Limitations
The following sections describe limitations of the new software features supported by the Cisco 1700 series routers for Release 12.2(11)YV2.
Channel Bank
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Important Notes
The following sections describe important notes concerning the new software features supported by the Cisco 1700 series routers for Release 12.2(11)YV2.
Channel Bank
The port LED is illuminated when the channel bank connection is up. The port LED is turned off when the connection goes down. If a call gets connected to a channel bank port, any conversation in progress or in future through the channel bank will fail until shut or no-shut command is issued on the voice port. Alternately the connection can be removed and created again to recover.
Following syslog messages will be generated for indicating channel bank status.
%CHANNEL_BANK-5-UPDOWN:Channel Bank <connection_name> state is DOWN
%CHANNEL_BANK-5-UPDOWN:Channel Bank <connection_name> state is UP
The analog voice port LED will also indicate the channel bank status: on when the connection is UP and off when the connection is DOWN.
Caveats
Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three severity levels.
Caveats in Release 12.2 T are also in Release 12.2(11)YV2. For information on caveats in Cisco IOS Release 12.2 T, refer to the Caveats for Cisco IOS Release 12.2 T document. For information on caveats in Cisco IOS Release 12.2, refer to the Caveats for Cisco IOS Release 12.2 document. These documents list severity 1 and 2 caveats, and are located on Cisco.com and the Documentation CD.
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Resolved Caveats - Release 12.2(11)YV2
Cisco IOS Release 12.2(11)YV2 is a rebuild release for Cisco IOS Release 12.2(11)YV. This section describes unexpected behavior that is fixed in Release 12.2(11)YV2.
CSCdz71127
Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.
Cisco has made software available, free of charge, to correct the problem.
This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml
CSCea02355
Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.
Cisco has made software available, free of charge, to correct the problem.
This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml
Open Caveats for Release 12.2(11)YV
The following sections lists the open caveats for the Cisco IOS release 12.2(11)YV.
CSCdz65951
Calls using E&M Immediate Start and Delay Start lines on a channel bank connection do not succeed. First dialed digit from the E&M analog/T1 line on a call that flows through a Cisco 1760 router channel bank connection does not reach the destination end. This happens only when the dial out delay is configured to be less than 135 ms at the call originating node. This problem happens only when the call flows through a Cisco 1760 router channel bank connection. It does not happen on switched calls through the Cisco 1760 router.
Workaround
Configure the dialout delay to be at least 135 ms.
CSCdz67774
Channel bank does not work with analog FXS ground start.
Related Documentation
The following sections describe the documentation available for the Cisco 1700 series routers. Typically, these documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents. Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD.
Use these release notes with the documents listed in the following sections:
Release-Specific Documents
The following documents are specific to Release 12.2 and apply to Release 12.2(11)YV2. They are located on Cisco.com and the Documentation CD (under the heading Service & Support):
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Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS Release 12.2 T
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Technical Documents: Product Bulletins
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Technical Documents: Cisco IOS Software: Release 12.2: Caveats
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Platform-Specific Documents
Hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 1700 series routers are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htm
This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1700 Series Routers: <platform_name>
Obtaining Documentation
These sections explain how to obtain documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at this URL:
Translated documentation is available at this URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation CD-ROM
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.
Ordering Documentation
You can order Cisco documentation in these ways:
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http://www.cisco.com/cgi-bin/order/order_root.pl
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http://www.cisco.com/go/subscription
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Documentation Feedback
You can submit comments electronically on Cisco.com. In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom of the page.
You can e-mail your comments to bug-doc@cisco.com.
You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:
Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:
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If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:
Technical Assistance Center
The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.
Cisco TAC inquiries are categorized according to the urgency of the issue:
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The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.
Cisco TAC Web Site
You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:
All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:
http://www.cisco.com/register/
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Copyright © 2002, Cisco Systems, Inc.
All rights reserved.
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