- Quick Links to Catalyst 4500 Series Switch Cisco IOS Commands
- Index
- Preface
- Command-Line Interface
- aaa accounting dot1x default start-stop group radius through instance
- interface port-channel through shape
- show access-group mode interface through show vtp
- snmp ifindex clear through vtp v2-mode
- Acronyms
- Acknowledgements for Open-Source Software
Symbols -
Numerics -
A -
B -
C -
D -
E -
F -
G -
H -
I -
J -
L -
M -
N -
O -
P -
Q -
R -
S -
T -
U -
V -
Index
Symbols
$ matches the end of a string 1-7
( ) in commands 1-10
* matches 0 or more sequences of a pattern 1-7
+ matches 1 or more sequences of a pattern 1-7
. matches any single character 1-7
? command 1-1
? matches 0 or 1 occurrence of a pattern 1-7
^ matches the beginning of a string 1-7
_ matches a comma (,), left brace ({), left parenthesis 1-7
" 1-10
Numerics
10-Gigabit Ethernet uplink
selecting 2-125
showing the mode 2-340
802.1Q trunk ports and native VLANs 2-598
802.1Q tunnel ports
configuring 2-553
802.1S Multiple Spanning Tree
802.1X
disabling port control 2-92
enabling port control 2-92
802.1X Critical Authentication
disabling on a port 2-93
disabling on a VLAN 2-96
EAPOL
disabling send success packets 2-94
enabling send success packets 2-94
enabling on a port 2-93
enabling on a VLAN 2-96
returning delay time to default setting 2-95
setting delay time on a port 2-95
802.1X Port Based Authentication
allowing multiple hosts on a port 2-103
debugging 802.1X Port Based Authentication 2-56
displaying port based authentication 2-326
enabling accounting for authentication sessions 2-3
enabling authentication on the system 2-108
enabling guest VLAN 2-97
enabling guest VLAN supplicant 2-90, 2-98
enabling manual control of auth state 2-104
enabling periodic re-authentication of the client 2-107
initializing re-authentication of dot1x ports 2-106
initializing state machines 2-99
receive session termination message upon reboot 2-4
setting maximum number for EAP requests 2-102
setting the reauthentication timer 2-109
A
abbreviating commands
context-sensitive help 1-1
Access Gateway Module
connecting to a module 2-12
connecting to a remote module 2-283
connecting to a specific remote module 2-293
access-group
displaying mac interface 2-412
show mode interface 2-297
access groups
IP 2-5
access lists
clearing an access template 2-28
defining ARP 2-11
displaying ARP information 2-300
See also ACLs, MAC ACLs, and VACLs
access maps
applying with VLAN filter 2-599
ACLs
access-group mode 2-5
balancing hardware regions 2-8
determining ACL hardware programming 2-6
displaying mac access-group interface 2-412
using ACL naming conventions for MAC ACLs 2-198
action clause
specifying drop or forward action in a VACL 2-9
addresses, configuring a maximum 2-254
adjacency
debugging the adjacency table 2-50
disabling the debug facility 2-50
displaying information about the adjacency table 2-298
displaying IPC table entries 2-50
aggregate policer
displaying information 2-458
aging time
displaying MAC address aging time 2-415
MAC address table 2-201
alarms
displaying operational status 2-329
alternation
description 1-9
anchoring
description 1-10
ARP
access list, displaying detailed information 2-300
defining access-lists 2-11
ARP inspection
enforce certain types of checking 2-142
ARP packet
deny based on DHCP bindings 2-86
permit based on DHCP bindings 2-240
authentication
setting username 2-589
using an MD5-type encryption method 2-589
verifying MD5 signature 2-590
verifying the checksum for Flash memory 2-590
auth fail VLAN
enable on a port 2-91
set max number of attempts 2-90
authorization state
enabling manual control 2-104
authorization state of a controlled port 2-104
automatic installation
displaying status 2-301
auto-negotiate interface speed
example 2-544
auto-QoS
configuring for VoIP 2-13
displaying configuration 2-302
B
baby giants
displaying the system MTU setting 2-483
setting the maximum Layer 2 payload size 2-572
BackboneFast
displaying debugging messages 2-75
displaying spanning tree status 2-474
enabling debugging 2-75
bindings
store for DHCP snooping 2-151
BOOT environment variable
displaying information 2-306
bootflash
displaying information 2-304
BPDUs
debugging spanning tree activities 2-74
bridge protocol data units
broadcast suppression level
C
cable diagnostics
TDR
displaying test results 2-307
testing conditions of copper cables 2-573
Catalyst 4507R 2-250
power redundancy mode 2-255
CDP
configuring tunneling encapsulation rate 2-188
displaying
neighbor information 2-309
enabling protocol tunneling for 2-184
set drop threshold for 2-186
CEF
displaying next-hop information 2-373
displaying VLAN configuration information 2-373
cisco-desktop
macro apply 2-209
Cisco Express Forwarding
cisco-phone
macro apply 2-211
cisco-router
macro apply 2-213
cisco-switch
macro apply 2-215
clear commands
clearing Gigabit Ethernet interfaces 2-26
clearing IGMP group cache entries 2-33
clearing interface counters 2-23
clearing IP access lists 2-28, 2-29
clearing IP ARP inspection statistics VLAN 2-30
clearing IP DHCP snooping database 2-31
clearing IP DHCP snooping database statistics 2-32
clearing MFIB counters and routes 2-36
clearing MFIB fastdrop entries 2-37
clearing PAgP channel information 2-42
clearing QoS aggregate counters 2-45
clearing VLAN interfaces 2-27
CLI string search
anchoring 1-10
expressions 1-7
filtering 1-6
multiple-character patterns 1-8
multipliers 1-9
parentheses for recall 1-10
searching outputs 1-6
single-character patterns 1-7
using 1-6
command modes
accessing privileged EXEC mode 1-4
exiting 1-4
understanding user EXEC and configuration modes 1-4
condition interface
debugging interface-related activities 2-52
condition vlan
debugging VLAN output 2-55
configuration, saving 1-11
configuring
root as secondary 2-528
configuring a SPAN session to monitor
limit SPAN source traffic 2-229
configuring forward delay 2-524
configuring root as primary 2-528
CoPP
attaching
policy map to control plane 2-291
displaying
policy-map class information 2-438
entering configuration mode 2-48
removing
service policy from control plane 2-291
CoS
assigning to Layer 2 protocol packets 2-185
CoS QoS default
defining value on an interface 2-268
Cost of Service
counters
clearing interface counters 2-23
D
DAI
clear statistics 2-30
DBL
displaying qos dbl 2-459
enabling DBL globally on the switch 2-269
debug commands
debugging backup events 2-51
debugging DHCP snooping events 2-61
debugging DHCP snooping messages 2-62
debugging EtherChannel/PAgP/shim 2-57
debugging IPC activity 2-60
debugging IP DHCP snooping security messages 2-63
debugging NVRAM activities 2-66
debugging PAgP activities 2-67
debugging port manager activities 2-70
debugging software MAC filter updates 2-73
debugging spanning tree activities 2-74
debugging spanning tree backbonefast 2-75
debugging spanning tree UplinkFast 2-78
debugging supervisor redundancy 2-72
debugging VLAN manager activities 2-79
displaying monitor activity 2-65
displaying the adjacency table 2-50
enabling debug dot1x 2-56
enabling debugging messages for ISL VLAN IDs 2-81
enabling debugging messages for VTP 2-82
enabling debugging of UDLD activity 2-83
enabling switch shim debugging 2-76
enabling VLAN manager file system error tests 2-80
limiting debugging output for VLANs 2-55
limiting interface debugging output 2-52
limiting output for debugging standby state changes 2-53
shortcut to the debug condition interface 2-59
debugging
activity monitoring 2-65
DHCP snooping events 2-61
DHCP snooping packets 2-62
IPC activities 2-60
IP DHCP snooping security packets 2-63
NVRAM activities 2-66
PAgP activities 2-67
PAgP shim 2-57
PM activities 2-70
SMF address insertions and deletions 2-73
spanning tree BackboneFast events 2-75
spanning tree switch shim 2-76
spanning tree UplinkFast events 2-78
VLAN manager activities 2-79
VLAN manager IOS file system error tests 2-80
VTP protocol debug messages 2-82
debug spanning tree switch 2-76
debug sw-vlan vtp 2-82
default CoS value 2-268
default form of a command, using 1-6
defining egress DSCP-to-CoS mapping 2-273
DHCP
clearing database statistics 2-32
DHCP bindings
configuring bindings 2-150
deny ARP packet based on matches 2-86
permit ARP packet based on matches 2-240
DHCP snooping
clearing database 2-31
displaying binding table 2-375
displaying configuration information 2-374
displaying status of DHCP database 2-378
displaying status of error detection 2-332
enabling DHCP globally 2-149
enabling IP source guard 2-182
enabling on a VLAN 2-157
enabling option 82 2-153, 2-154
enabling rate limiting on an interface 2-155
enabling trust on an interface 2-156
establishing binding configuration 2-150
renew binding database 2-285
store generated bindings 2-151
diagnostic test
bootup packet memory 2-320
displaying attributes 2-314
display module-based results 2-316
running 2-89
show results for TDR 2-307
testing conditions of copper cables 2-573
displaying error disable recovery 2-333
displaying inline power status 2-450
displaying monitoring activity 2-65
displaying SEEPROM information
GBIC 2-341
displaying SPAN session information 2-482, 2-546
document conventions xvi
document organization xv
DoS
CoPP
attaching policy map to control plane 2-291
displaying policy-map class information 2-438
entering configuration mode 2-48
removing service policy from control plane 2-291
entering
CoPP configuration mode 2-48
DOS attack
protecting system's resources 2-137
drop threshold, Layer 2 protocol tunneling 2-186
DSCP rewrite for IP packets
enable 2-276
dual-capable port
selecting a connector 2-226
duplex mode
configuring autonegotiation on an interface 2-111
configuring full duplex on an interface 2-111
configuring half duplex on an interface 2-111
dynamic ARP inspection
preventing 2-137
Dynamic Buffer Limiting
Dynamic Host Configuration Protocol
E
EAP
restarting authentication process 2-102
EIGRP (Enhanced IGRP)
filters
routing updates, preventing 2-237
enabling
debugging for UDLD 2-83
voice VLANs 2-548
environmental
alarms 2-329
displaying information 2-329
status 2-329
temperature 2-329
erase a file 2-113
error disable detection
enabling error disable detection 2-116
error-disabled state
displaying 2-359
error disable recovery
configuring recovery mechanism variables 2-118
displaying recovery timer information 2-333
enabling ARP inspection timeout 2-118
specifying recovery cause 2-118
EtherChannel
assigning interfaces to EtherChannel groups 2-17
debugging EtherChannel 2-57
debugging PAgP shim 2-57
debugging spanning tree activities 2-74
displaying information for a channel 2-334
removing interfaces from EtherChannel groups 2-17
EtherChannel guard
detecting STP misconfiguration 2-515
Explicit Host Tracking
clearing the database 2-35
enabling per-VLAN 2-169
expressions
matching multiple expression occurrences 1-9
multiple-character patterns 1-8
multiplying pattern occurrence 1-10
single-character patterns 1-7
Extensible Authentication Protocol
F
field replaceable unit (FRU)
displaying status information 2-329
filters
EIGRP
routing updates, preventing 2-237
Flash memory file system
displaying file system information 2-304
verifying checksum 2-590
flow control
configuring a gigabit interface for pause frames 2-121
displaying per-interface statistics for flow control 2-338
G
GBIC
displaying SEEPROM information 2-341
Gigabit Ethernet interface
clearing the hardware logic 2-26
Gigabit Ethernet uplink
selecting 2-125
showing the mode 2-340
global configuration mode
using 1-5
H
hardware module
resetting a module by toggling the power 2-124
hardware uplink
selecting the mode 2-125
showing the mode 2-340
helper addresses, IP 2-391
hot standby protocol
debugging 2-53
disabling debugging 2-53
limiting output 2-53
I
IDPROMs
displaying SEEPROM information
chassis 2-341
clock module 2-341
fan trays 2-341
module 2-341
mux buffer 2-341
power supplies 2-341
supervisor engine 2-341
ifIndex persistence
clearing SNMP ifIndex commands 2-503
compress SNMP ifIndex table format 2-508
disabling globally 2-507
disabling on an interface 2-504
enabling globally 2-507
enabling on an interface 2-504
IGMP
applying filters for host joining on Layer 2 interfaces 2-159
clearing IGMP group cache entries 2-33
configuring frequency for IGMP host-query messages 2-162
creating an IGMP profile 2-161
displaying IGMP interface configuration information 2-380
displaying profiles 2-381
setting maximum group numbers 2-160
IGMP profiles
displaying 2-381
IGMP snooping
clearing the EHT database 2-35
configuring a Layer 2 interface as a group member 2-173
configuring a Layer 2 interface as a multicast router 2-171
configuring a static VLAN interface 2-173
displaying multicast information 2-388
displaying VLAN information 2-382, 2-386, 2-389
enabling 2-164
enabling immediate-leave processing 2-170
enabling on a VLAN 2-168
enabling per-VLAN Explicit Host Tracking 2-169
informs
enabling 2-505
inline power
displaying inline power status 2-450
inspection log
clearing log buffer 2-29
interface
displaying suppressed multicast bytes 2-353
interface capabilities
displaying 2-350
interface configuration mode
summary 1-5
interface link
display cable disconnect time 2-356
interfaces
configuring dot1q tunnel ports 2-553
creating an interface-range macro 2-85
debugging output of interface related activities 2-52
displaying description 2-355
displaying error-disabled state 2-359
displaying information when tunneling is enabled 2-406
displaying status 2-355
displaying traffic for a specific interface 2-347
entering interface configuration mode 2-129
executing a command on multiple ports in a range 2-132
selecting an interface to configure 2-129
setting a CoS value for Layer 2 packets 2-185
setting drop threshold for Layer 2 packets 2-186
setting the interface type 2-553
interface speed
configuring interface speed 2-542
interface transceiver
displaying diagnostic data 2-362
internal VLAN allocation
configuring 2-600
default setting 2-600
displaying allocation information 2-494
Internet Group Management Protocol
IP ARP
applying ARP ACL to VLAN 2-135
clearing inspection statistics 2-30
clearing status of log buffer 2-29
controlling packet logging 2-145
enabling dynamic inspection 2-144
limit rate of incoming requests 2-137
set per-port config trust state 2-141
showing status of dynamic ARP inspection 2-369
showing status of log buffer 2-372
IPC
debugging IPC activities 2-60
IP DHCP Snooping
IP header validation
disabling 2-181
enabling 2-181
IP interfaces
displaying usability status 2-390
IP multicast
displaying multicast routing table information 2-396
IP packets
enable DSCP rewrite 2-276
IP phone and standard desktop
enabling Cisco-recommended features 2-211
IP source binding
adding or deleting 2-178
displaying bindingstagging 2-401
IP source guard
debugging messages 2-63
displaying configuration and filters 2-402
enabling on DHCP snooping 2-182
J
Jumbo frames
enabling jumbo frames 2-233
L
LACP
deselecting channeling protocol 2-19
enabling LACP on an interface 2-19
setting channeling protocol 2-19
Layer 2
displaying ACL configuration 2-412
Layer 2 interface type
specifying a nontrunking, nontagged single VLAN interface 2-553
specifying a trunking VLAN interface 2-553
Layer 2 protocol ports
displaying 2-406
Layer 2 protocol tunneling error recovery 2-188
Layer 2 switching
enabling voice VLANs 2-548
modifying switching characteristics 2-548
Layer 2 traceroute
IP addresses 2-578
Layer 3 switching
displaying information about an adjacency table 2-298
displaying port status 2-360
displaying status of native VLAN tagging 2-360
link-status event messages
disabling
enabling
log buffer
show status 2-372
logging
controlling IP ARP packets 2-145
M
MAC Access Control Lists
MAC ACLs
defining extended MAC access list 2-198
displaying MAC ACL information 2-491
naming an ACL 2-198
MAC address filtering
configuring 2-207
disabling 2-207
enabling 2-207
MAC address table
adding static entries 2-220
clearing dynamic entries 2-39, 2-41
configuring aging time 2-201
displaying dynamic table entry information 2-417
displaying entry count 2-416
displaying information 2-413
displaying interface-based information 2-419
displaying multicast information 2-421
displaying notification information 2-423
displaying protocol-based information 2-425
displaying static table entry information 2-427
displaying the MAC address aging time 2-415
displaying VLAN-based information 2-429
enabling authentication bypass 2-100
enabling notifications 2-205
learning in the protocol buckets 2-202
removing static entries 2-220
MAC address tables
adding static entries 2-207
deleting secure or specific addresses 2-43
disabling IGMP snooping on static MAC addresses 2-207
removing static entries 2-207
mac-address-table static 2-207
MAC address unicast filtering
dropping unicast traffic 2-207
macro global description command 2-219
macro keywords
help strings 2-2
macros
adding a global description 2-219
cisco global 2-217
system-cpp 2-218
mapping secondary VLANs to MST instance 2-260
mapping VLAN(s) to an MST instance 2-127
match subcommand
accessing 2-21
maximum transmission unit (MTU)
displaying the system MTU setting 2-483
setting the maximum Layer 2 payload size 2-572
MD5
verifying MD5 signature 2-590
message digest 5
MFIB
clearing ip mfib counters 2-36
clearing ip mfib fastdrop 2-37
displaying all active MFIB routes 2-393
displaying MFIB fastdrop table entries 2-395
enabling IP MFIB fastdrops 2-175
modes
access-group 2-5
show access-group interface 2-297
switching between PVST+, MST, and Rapid PVST 2-520
module password clearing 2-25
module reset
resetting a module by toggling the power 2-124
--More-- prompt
filter 1-6
search 1-7
MST
designating the primary and secondary root 2-528
displaying MST protocol information 2-478
displaying region configuration information 2-478
displaying spanning tree information 2-478
entering MST configuration submode 2-522
setting configuration revision number 2-287
setting path cost and port priority for instances 2-521
setting the forward delay timer for all instances 2-524
setting the hello-time delay timer for all instances 2-525
setting the max-age timer for all instances 2-526
setting the MST region name 2-234
specifying the maximum number of hops 2-527
switching between PVST+ and Rapid PVST 2-520
using the MST configuration submode revision command 2-287
using the submode name command 2-234
MTU
displaying global MTU settings 2-483
multicast
enabling storm control 2-547
multicast/unicast packets
prevent forwarding 2-552
Multicast Forwarding Information Base
multiple-character patterns 1-8
multiple hosts on authorized port 2-103
Multiple Spanning Tree
N
native VLAN
controlling tagging of traffic 2-567
displaying ports eligible for native tagging 2-493
displaying ports eligible for tagging 2-493
enabling tagging on 802.1Q trunk ports 2-598
specifing the tagging of traffic 2-568
NetFlow
enabling NetFlow statistics 2-176
including infer fields in routing statistics 2-176
next-hop
displaying CEF VLAN information 2-373
no form of a command, using 1-6
NVRAM
debugging NVRAM activities 2-66
O
output
pattern searches 1-7
P
packet forwarding
prevent unknown packets 2-552
packet memory failure
direct switch action upon detection 2-88
packet memory test
bootup, displaying results 2-320, 2-322
ongoing, displaying results 2-324
PACL
access-group mode 2-5
paging prompt
PAgP
clearing port channel information 2-42
debugging PAgP activity 2-67
deselecting channeling protocol 2-19
displaying port channel information 2-435
hot standby mode
returning to defaults 2-236
selecting ports 2-236
input interface of incoming packets
learning 2-235
returning to defaults 2-235
setting channeling protocol 2-19
parentheses 1-10
password
clearing on an intelligent line module 2-25
establishing enhanced password security 2-589
setting username 2-589
PBR
PM activities
debugging 2-70
disabling debugging 2-70
Policy Based Routing
port, dual-capable
selecting the connector 2-226
Port Aggregation Protocol
port-based authentication
displaying debug messages 2-56
displaying statistics and status 2-326
enabling 802.1X 2-104
manual control of authorization state 2-104
multiple hosts on authorized port 2-103
periodic re-authentication
enabling 2-107
re-authenticating 802.1X-enabled ports 2-106
switch-to-client frame-retransmission number 2-102
port channel
accessing 2-131
creating 2-131
displaying information 2-435
load distribution method
resetting to defaults 2-244
setting 2-244
port range
executing 2-132
port security
debugging ports security 2-71
deleting secure or specific addresses 2-43
displaying settings for an interface or switch 2-445
enabling 2-555
filter source IP and MAC addresses 2-182
setting action upon security violation 2-555
setting the rate limit for bad packets 2-555
sticky port 2-555
Port Trust Device
displaying 2-460
power status
displaying inline power 2-450
displaying power status 2-450
power supply
configuring combined and redundant power on the Catalyst 4507R 2-250
configuring inline power 2-247
configuring power consumption 2-249
configuring power redundancy on the Catalyst 4507R 2-255
displaying the SEEPROM 2-341
setting inline power state 2-246
Private VLAN
privileged EXEC mode, summary 1-5
prompts
system 1-5
protocol tunneling
configuring encapsulation rate 2-188
disabling 2-184
displaying port information 2-406
enabling 2-184
setting a CoS value for Layer 2 packets 2-185
setting a drop threshold for Layer 2 packets 2-186
PVLANs
configuring isolated, primary, and community PVLANs 2-256
controlling tagging of native VLAN traffic 2-567
disabling sticky-ARP 2-179
displaying map information for VLAN SVIs 2-358
displaying PVLAN information 2-496
enabling interface configuration mode 2-553
enabling sticky-ARP 2-179
mapping VLANs to the same SVI 2-258
specifying host ports 2-553
specifying promiscuous ports 2-553
PVST+
switching between PVST and MST 2-520
Q
QoS
account Layer 2 encapsulation 2-263
attaching a policy-map to an interface 2-288
automatic configuration 2-13
clearing aggregate counters 2-45
configuring a QoS policy map 2-242
configuring auto 2-13
defining a named aggregate policer 2-265
defining default CoS value 2-268
defining ingress CoS-to-DSCP mapping 2-272
displaying aggregate policer information 2-458
displaying auto configuration 2-302
displaying class maps information 2-312
displaying configuration information 2-302
displaying configurations of policies 2-441
displaying policy map information 2-437, 2-444
displaying QoS information 2-457
displaying QoS map information 2-461
enabling global configuration mode 2-261
enabling per-VLAN QoS for a Layer 2 interface 2-279
enabling QoS on an interface 2-262
mapping DSCP values to transmit queues 2-273
mapping egress DSCP-to-CoS 2-273
mapping the DSCP-to-CoS value 2-273
setting the mapping of policed DSCP values 2-275
setting the trust state 2-277
specifying flow-based match criteria 2-222
QoS CoS
configuring for tunneled Layer 2 protocol packets 2-185
defining default CoS value 2-268
qos dbl 2-269
question command 1-1
queueing information
displaying 2-460
R
Rapid PVST
switching between PVST and MST 2-520
re-authenticating 802.1X-enabled ports 2-106
re-authentication
periodic 2-107
set the time 2-109
reboots
restoring bindings across 2-150
redundancy
accessing the main CPU 2-280
changing from active to standby supervisor engine 2-281
displaying information 2-463
displaying redundancy facility information 2-463
displaying RF client list 2-463
displaying RF operational counters 2-463
displaying RF states 2-463
enabling automatic synchronization 2-16
forcing switchover to standby supervisor engine 2-281
set the mode 2-227
synchronizing the route processor configurations 2-220
related documentation xv
remote SPAN
renew commands
ip dhcp snooping database 2-285
resetting PVLAN trunk
setting switchport to trunk 2-553
rj45 connector, selecting the connector 2-226
ROM monitor mode
summary 1-6
Route Processor Redundancy
RPR
set the redundancy mode 2-227
RSPAN
converting VLAN to RSPAN VLAN 2-284
displaying list 2-498
S
saving configuration changes 1-11
secure address, configuring 2-252
secure ports, limitations 2-556
set the redundancy mode 2-227
sfp connector, selecting the connector 2-226
show commands
filtering parameters 1-7
searching and filtering 1-6
show platform commands 1-11
Simple Network Management Protocol
single-character patterns
special characters 1-7
slaveslot0
displaying information on the standby supervisor 2-470
slot0
displaying information about the system 2-472
SMF
debugging address insertions and deletions 2-73
SNMP
debugging spanning tree activities 2-74
ifIndex persistence
clearing SNMP ifIndex commands 2-503
compress SNMP ifIndex table format 2-508
disabling globally 2-507
disabling on an interface 2-504
enabling globally 2-507
enabling on an interface 2-504
informs
disabling 2-505
enabling 2-505
traps
configuring to send when storm occurs 2-545
disabling 2-505
enabling 2-505
mac-notification
adding 1
removing 1
software MAC filter
SPAN commands
configuring a SPAN session to monitor 2-229
displaying SPAN session information 2-482, 2-546
SPAN enhancements
displaying status 2-433
Spanning Tree Protocol
SPAN session
displaying session information 2-433
filter ACLs 2-229
specify encap type 2-229
turn off host learning based on ingress packets 2-229
special characters
anchoring, table 1-10
SSO 2-227
standard desktop
enabling Cisco-recommended features 2-209
standard desktop and Cisco IP phone
enabling Cisco-recommended features 2-211
sticky address, configuring 2-253
sticky-ARP
disabling on PVLANs 2-179
enabling on PVLANs 2-179
sticky port
deleting 2-43
enabling security 2-555
storm control
configuring for action when storm occurs 2-545
disabling suppression mode 2-332
displaying settings 2-481
enabling 2-545
enabling broadcast 2-545, 2-547
enabling multicast 2-545, 2-547
enabling suppression mode 2-332
enabling timer to recover from error disable 2-118
multicast, enabling 2-547
setting high and low levels 2-545
setting suppression level 2-332
STP
configuring link type for a port 2-518
configuring tunneling encapsulation rate 2-188
debugging all activities 2-74
debugging spanning tree activities 2-74
debugging spanning tree BackboneFast events 2-75
debugging spanning tree UplinkFast 2-78
detecting misconfiguration 2-515
displaying active interfaces only 2-474
displaying BackboneFast status 2-474
displaying bridge status and configuration 2-474
displaying spanning tree debug messages 2-74
displaying summary of interface information 2-474
enabling BPDU filtering by default on all PortFast ports 2-533
enabling BPDU filtering on an interface 2-511
enabling BPDU guard by default on all PortFast ports 2-535
enabling BPDU guard on an interface 2-513
enabling extended system ID 2-516
enabling loop guard as a default on all ports 2-519
enabling PortFast by default on all access ports 2-536
enabling PortFast mode 2-531
enabling protocol tunneling for 2-184
enabling root guard 2-517
enabling spanning tree BackboneFast 2-510
enabling spanning tree on a per VLAN basis 2-540
enabling spanning tree UplinkFast 2-538
setting an interface priority 2-537
setting drop threshold for 2-186
setting pathcost 2-514
setting the default pathcost calculation method 2-530
subinterface configuration mode, summary 1-6
SVI
creating a Layer 3 interface on a VLAN 2-134
switchport 2-568
switchport interfaces
displaying status of Layer 3 port 2-360
displaying status of native VLAN tagging 2-360
switch shim
debugging 2-76
disabling debugging 2-76
switch to router connection
enabling Cisco-recommended features 2-213
switch to switch connection
enabling Cisco-recommended features 2-215
switch virtual interface
sw-vlan 2-79
system prompts 1-5
T
Tab key
command completion 1-1
tables
characters with special meaning 1-7
mac access-list extended subcommands 2-198
match syntax description 2-22
multipliers 1-9
relationship between duplex and speed commands 2-543
show cable-diagnostics tdr command output fields 2-308
show cdp neighbors detail field descriptions 2-311
show cdp neighbors field descriptions 2-310
show ip interface field descriptions 2-391
show policy-map control-plane field descriptions 2-440
show vlan command output fields 2-497
show vtp command output fields 2-501
special characters 1-9
special characters used for anchoring 1-10
speed command options 2-222, 2-542
valid interface types 2-129
TAC
displaying information useful to TAC 2-484
TCAM
debugging spanning tree activities 2-74
TDR
displaying cable diagnostic test results 2-307
test condition of copper cables 2-573
temperature readings
displaying information 2-329
timer information 2-333
traffic shaping
enable on an interface 2-295
traps, enabling 2-505
trunk encapsulation
setting format 2-568
trunk interfaces
displaying trunk interfaces information 2-367
trust state
setting 2-141
tunnel ports
displaying information about Layer 2 protocol 2-406
TX queues
allocating bandwidth 2-581
returning to default values 2-581
setting priority to high 2-581
specifying burst size 2-581
specifying traffic rate 2-581
U
UDLD
displaying administrative and operational status 2-486
enabling by default on all fiber interfaces 2-583
enabling on an individual interface 2-585
preventing a fiber interface from being enabled 2-585
resetting all shutdown ports 2-587
setting the message timer 2-583
Unidirectional Link Detection
unknown multicast traffic, preventing 2-552
unknown unicast traffic, preventing 2-552
user EXEC mode, summary 1-5
username
setting password and privilege level 2-589
V
VACLs
access-group mode 2-5
applying VLAN access maps 2-599
displaying VLAN access map information 2-491
specifying an action in a VLAN access map 2-9
specifying the match clause for a VLAN access-map sequence 2-221
using a VLAN filter 2-599
VLAN
applying an ARP ACL 2-135
configuring 2-592
converting to RSPAN VLAN 2-284
displaying CEF information 2-373
displaying CEF next-hop information 2-373
displaying information on switch interfaces 2-382, 2-386
displaying information on VLAN switch interfaces 2-389
displaying information sorted by group IP address 2-382, 2-386
displaying IP address and version information 2-382, 2-386
displaying Layer 2 VLAN information 2-488
displaying statistical information 2-431
displaying VLAN information 2-490
enabling dynamic ARP inspection 2-144
enabling Explicit Host Tracking 2-169
enabling guest per-port 2-97
enabling guest VLAN supplicant 2-90, 2-98
entering VLAN configuration mode 2-596
native frames
enabling tagging on all 802.1Q trunk ports 2-598
pruning the list for VTP 2-568
setting the list of allowed 2-568
VLAN Access Control Lists
VLAN access map
VLAN database
resetting 2-286
VLAN debugging
limiting output 2-55
VLAN manager
debugging 2-79
disabling debugging 2-79
IOS file system error tests
debugging 2-80
disabling debugging 2-80
VLAN Query Protocol
VLAN query protocol (VQPC)
debugging 2-84
VLANs
clearing
counters 2-46
clearing hardware logic 2-27
configuring
internal allocation scheme 2-600
displaying
internal VLAN allocation information 2-494
RSPAN VLANs 2-498
entering VLAN configuration mode 2-596
VMPS
configuring servers 2-604
reconfirming dynamic VLAN assignments 2-602
voice VLANs
enabling 2-548
VoIP
configuring auto-QoS 2-13
VQP
per-server retry count 2-603
reconfirming dynamic VLAN assignments 2-602
VTP
configuring the administrative domain name 2-608
configuring the device in VTP client mode 2-607
configuring the device in VTP server mode 2-611
configuring the device in VTP transparent mode 2-612
configuring tunnel encapsulation rate 2-188
creating a VTP domain password 2-609
displaying domain information 2-500
displaying statistics information 2-500
enabling protocol tunneling for 2-184
enabling pruning in the VLAN database 2-610
enabling VTP version 2 mode 2-613
modifying the VTP configuration storage file name 2-606
set drop threshold for 2-186
VTP protocol code
activating debug messages 2-82
deactivating debug messages 2-82
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