- 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 2-352
802.1Q trunk ports and native VLANs 2-638
802.1Q tunnel ports
configuring 2-587
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 2-338
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 2-295
connecting to a specific remote module 2-305
access-group
displaying mac interface 2-444
show mode interface 2-309
access groups
IP 2-5
access lists
clearing an access template 2-28
defining ARP 2-11
displaying ARP information 2-312
See also ACLs, MAC ACLs, and VACLs
access maps
applying with VLAN filter 2-639
ACLs
access-group mode 2-5
balancing hardware regions 2-8
determining ACL hardware programming 2-6
displaying mac access-group interface 2-444
using ACL naming conventions for MAC ACLs 2-206
action clause
specifying drop or forward action in a VACL 2-9
addresses, configuring a maximum 2-263
adjacency
debugging the adjacency table 2-50
disabling the debug facility 2-50
displaying information about the adjacency table 2-310
displaying IPC table entries 2-50
aggregate policer
displaying information 2-491
aging time
displaying MAC address aging time 2-447
MAC address table 2-209
alarms
displaying operational status 2-341
alternation
description 1-9
anchoring
description 1-10
ARP
access list, displaying detailed information 2-312
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 2-249
authentication
setting username 2-629
using an MD5-type encryption method 2-629
verifying MD5 signature 2-630
verifying the checksum for Flash memory 2-630
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 2-313
automatic medium-dependent interface crossover
Auto-MDIX
disabling 2-234
enabling 2-234
auto-negotiate interface speed
example 2-578
auto-QoS
configuring for VoIP 2-13
displaying configuration 2-314
B
baby giants
displaying the system MTU setting 2-517
setting the maximum Layer 2 payload size 2-612
BackboneFast
displaying debugging messages 2-75
displaying spanning tree status 2-507
enabling debugging 2-75
bindings
store for DHCP snooping 2-151
BOOT environment variable
displaying information 2-318
bootflash
displaying information 2-316
BPDUs
debugging spanning tree activities 2-74
bridge protocol data units
broadcast suppression level
C
cable diagnostics
TDR
displaying test results 2-319
testing conditions of copper cables 2-613
Catalyst 4507R 2-259
power redundancy mode 2-264
CDP
configuring tunneling encapsulation rate 2-196
displaying
neighbor information 2-321
enabling protocol tunneling for 2-193
set drop threshold for 2-195
CEF
displaying next-hop information 2-386
displaying VLAN configuration information 2-386
cisco-desktop
macro apply 2-217
Cisco Express Forwarding
cisco-phone
macro apply 2-219
cisco-router
macro apply 2-221
cisco-switch
macro apply 2-223
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 2-562
configuring a SPAN session to monitor
limit SPAN source traffic 2-238
configuring forward delay 2-558
configuring root as primary 2-562
CoPP
attaching
policy map to control plane 2-303
displaying
policy-map class information 2-470
entering configuration mode 2-48
removing
service policy from control plane 2-303
CoS
assigning to Layer 2 protocol packets 2-194
CoS QoS default
defining value on an interface 2-279
Cost of Service
counters
clearing interface counters 2-23
D
DAI
clear statistics 2-30
DBL
displaying qos dbl 2-492
enabling DBL globally on the switch 2-280
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 2-279
default form of a command, using 1-6
defining egress DSCP-to-CoS mapping 2-285
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 2-249
DHCP snooping
clearing database 2-31
displaying binding table 2-388
displaying configuration information 2-387
displaying status of DHCP database 2-391
displaying status of error detection 2-344
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 2-297
store generated bindings 2-151
diagnostic test
bootup packet memory 2-332
displaying attributes 2-326
display module-based results 2-328
running 2-89
show results for TDR 2-319
testing conditions of copper cables 2-613
displaying error disable recovery 2-345
displaying inline power status 2-483
displaying monitoring activity 2-65
displaying SEEPROM information
GBIC 2-353
displaying SPAN session information 2-516, 2-580
document conventions xviii
document organization xvii
DoS
CoPP
attaching policy map to control plane 2-303
displaying policy-map class information 2-470
entering configuration mode 2-48
removing service policy from control plane 2-303
entering
CoPP configuration mode 2-48
DOS attack
protecting system's resources 2-137
drop threshold, Layer 2 protocol tunneling 2-195
DSCP rewrite for IP packets
enable 2-288
dual-capable port
selecting a connector 2-235
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 2-246
enabling
debugging for UDLD 2-83
voice VLANs 2-582
environmental
alarms 2-341
displaying information 2-341
status 2-341
temperature 2-341
erase a file 2-113
error disable detection
enabling error disable detection 2-116
error-disabled state
displaying 2-372
error disable recovery
configuring recovery mechanism variables 2-118
displaying recovery timer information 2-345
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 2-346
removing interfaces from EtherChannel groups 2-17
EtherChannel guard
detecting STP misconfiguration 2-549
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 2-341
filters
EIGRP
routing updates, preventing 2-246
Flash memory file system
displaying file system information 2-316
verifying checksum 2-630
flow control
configuring a gigabit interface for pause frames 2-121
displaying per-interface statistics for flow control 2-350
G
GBIC
displaying SEEPROM information 2-353
Gigabit Ethernet interface
clearing the hardware logic 2-26
Gigabit Ethernet uplink
selecting 2-125
showing the mode 2-352
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 2-352
helper addresses, IP 2-404
hot standby protocol
debugging 2-53
disabling debugging 2-53
limiting output 2-53
I
IDPROMs
displaying SEEPROM information
chassis 2-353
clock module 2-353
fan trays 2-353
module 2-353
mux buffer 2-353
power supplies 2-353
supervisor engine 2-353
ifIndex persistence
clearing SNMP ifIndex commands 2-537
compress SNMP ifIndex table format 2-542
disabling globally 2-541
disabling on an interface 2-538
enabling globally 2-541
enabling on an interface 2-538
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 2-393
displaying profiles 2-394
setting maximum group numbers 2-160
IGMP profiles
displaying 2-394
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 2-401
displaying VLAN information 2-395, 2-399, 2-402
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 2-539
inline power
displaying inline power status 2-483
In Service Software Upgrade
inspection log
clearing log buffer 2-29
interface
displaying suppressed multicast bytes 2-366
interface capabilities
displaying 2-362
interface configuration mode
summary 1-5
interface link
display cable disconnect time 2-369
interfaces
configuring dot1q tunnel ports 2-587
creating an interface-range macro 2-85
debugging output of interface related activities 2-52
displaying description 2-368
displaying error-disabled state 2-372
displaying information when tunneling is enabled 2-438
displaying status 2-368
displaying traffic for a specific interface 2-359
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 2-194
setting drop threshold for Layer 2 packets 2-195
setting the interface type 2-587
interface speed
configuring interface speed 2-576
interface transceiver
displaying diagnostic data 2-375
internal VLAN allocation
configuring 2-640
default setting 2-640
displaying allocation information 2-528
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 2-382
showing status of log buffer 2-385
IPC
debugging IPC activities 2-60
IP DHCP Snooping
IP header validation
disabling 2-181
enabling 2-181
IP interfaces
displaying usability status 2-403
IP multicast
displaying multicast routing table information 2-409
IP packets
enable DSCP rewrite 2-288
IP phone and standard desktop
enabling Cisco-recommended features 2-219
IP source binding
adding or deleting 2-178
displaying bindingstagging 2-414
IP source guard
debugging messages 2-63
displaying configuration and filters 2-415
enabling on DHCP snooping 2-182
ISSU
canceling process 2-184
configuring rollback timer 2-192
displaying capability 2-419
displaying client information 2-421
displaying compatibility matrix 2-423
displaying config-sync failure information 2-427
displaying endpoint information 2-429
displaying entities 2-430
displaying FSM session 2-431
displaying messages 2-432
displaying negotiated 2-433
displaying rollback-timer 2-434
displaying session information 2-435
displaying software version 2-436
displaying state 2-436
forcing switchover to standby supervisor engine 2-191
loading new image 2-187
mismatched command listing 2-188
starting process 2-190
stopping rollback timer 2-185
J
Jumbo frames
enabling jumbo frames 2-242
L
LACP
deselecting channeling protocol 2-19
enabling LACP on an interface 2-19
setting channeling protocol 2-19
Layer 2
displaying ACL configuration 2-444
Layer 2 interface type
specifying a nontrunking, nontagged single VLAN interface 2-587
specifying a trunking VLAN interface 2-587
Layer 2 protocol ports
displaying 2-438
Layer 2 protocol tunneling error recovery 2-196
Layer 2 switching
enabling voice VLANs 2-582
modifying switching characteristics 2-582
Layer 2 traceroute
IP addresses 2-618
Layer 3 switching
displaying information about an adjacency table 2-310
displaying port status 2-373
displaying status of native VLAN tagging 2-373
link-status event messages
disabling
enabling
log buffer
show status 2-385
logging
controlling IP ARP packets 2-145
M
MAC Access Control Lists
MAC ACLs
defining extended MAC access list 2-206
displaying MAC ACL information 2-525
naming an ACL 2-206
MAC address filtering
configuring 2-215
disabling 2-215
enabling 2-215
MAC address table
adding static entries 2-228
clearing dynamic entries 2-39, 2-41
configuring aging time 2-209
displaying dynamic table entry information 2-449
displaying entry count 2-448
displaying information 2-445
displaying interface-based information 2-451
displaying multicast information 2-453
displaying notification information 2-455
displaying protocol-based information 2-457
displaying static table entry information 2-459
displaying the MAC address aging time 2-447
displaying VLAN-based information 2-461
enabling authentication bypass 2-100
enabling notifications 2-213
learning in the protocol buckets 2-210
removing static entries 2-228
MAC address tables
adding static entries 2-215
deleting secure or specific addresses 2-43
disabling IGMP snooping on static MAC addresses 2-215
removing static entries 2-215
mac-address-table static 2-215
MAC address unicast filtering
dropping unicast traffic 2-215
macro
displaying descriptions 2-227
macro keywords
help strings 2-2
macros
adding a global description 2-227
cisco global 2-225
system-cpp 2-226
mapping secondary VLANs to MST instance 2-271
mapping VLAN(s) to an MST instance 2-127
match subcommand
accessing 2-21
maximum transmission unit (MTU)
displaying the system MTU setting 2-517
setting the maximum Layer 2 payload size 2-612
MD5
verifying MD5 signature 2-630
message digest 5
MFIB
clearing ip mfib counters 2-36
clearing ip mfib fastdrop 2-37
displaying all active MFIB routes 2-406
displaying MFIB fastdrop table entries 2-408
enabling IP MFIB fastdrops 2-175
modes
access-group 2-5
show access-group interface 2-309
switching between PVST+, MST, and Rapid PVST 2-554
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 2-562
displaying MST protocol information 2-512
displaying region configuration information 2-512
displaying spanning tree information 2-512
entering MST configuration submode 2-556
setting configuration revision number 2-299
setting path cost and port priority for instances 2-555
setting the forward delay timer for all instances 2-558
setting the hello-time delay timer for all instances 2-559
setting the max-age timer for all instances 2-560
setting the MST region name 2-243
specifying the maximum number of hops 2-561
switching between PVST+ and Rapid PVST 2-554
using the MST configuration submode revision command 2-299
using the submode name command 2-243
MTU
displaying global MTU settings 2-517
multicast
enabling storm control 2-581
multicast/unicast packets
prevent forwarding 2-586
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 2-607
displaying ports eligible for native tagging 2-527
displaying ports eligible for tagging 2-527
enabling tagging on 802.1Q trunk ports 2-638
specifing the tagging of traffic 2-608
NetFlow
enabling NetFlow statistics 2-176
including infer fields in routing statistics 2-176
next-hop
displaying CEF VLAN information 2-386
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 2-586
packet memory failure
direct switch action upon detection 2-88
packet memory test
bootup, displaying results 2-332, 2-334
ongoing, displaying results 2-336
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 2-467
hot standby mode
returning to defaults 2-245
selecting ports 2-245
input interface of incoming packets
learning 2-244
returning to defaults 2-244
setting channeling protocol 2-19
parentheses 1-10
password
clearing on an intelligent line module 2-25
establishing enhanced password security 2-629
setting username 2-629
PBR
redistributing route maps xviii
PM activities
debugging 2-70
disabling debugging 2-70
Policy Based Routing
port, dual-capable
selecting the connector 2-235
Port Aggregation Protocol
port-based authentication
displaying debug messages 2-56
displaying statistics and status 2-338
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 2-467
load distribution method
resetting to defaults 2-253
setting 2-253
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 2-477
enabling 2-592
filter source IP and MAC addresses 2-182
setting action upon security violation 2-592
setting the rate limit for bad packets 2-592
sticky port 2-592
Port Trust Device
displaying 2-493
power status
displaying inline power 2-483
displaying power status 2-483
power supply
configuring combined and redundant power on the Catalyst 4507R 2-259
configuring inline power 2-256
configuring power consumption 2-258
configuring power redundancy on the Catalyst 4507R 2-264
displaying the SEEPROM 2-353
setting inline power state 2-255
Private VLAN
privileged EXEC mode, summary 1-5
prompts
system 1-5
protocol tunneling
configuring encapsulation rate 2-196
disabling 2-193
displaying port information 2-438
enabling 2-193
setting a CoS value for Layer 2 packets 2-194
setting a drop threshold for Layer 2 packets 2-195
PVLANs
configuring isolated, primary, and community PVLANs 2-265
controlling tagging of native VLAN traffic 2-607
disabling sticky-ARP 2-179
displaying map information for VLAN SVIs 2-371
displaying PVLAN information 2-530
enabling interface configuration mode 2-587
enabling sticky-ARP 2-179
mapping VLANs to the same SVI 2-269
specifying host ports 2-587
specifying promiscuous ports 2-587
PVST+
switching between PVST and MST 2-554
Q
QoS
account Layer 2 encapsulation 2-274
attaching a policy-map to an interface 2-300
automatic configuration 2-13
clearing aggregate counters 2-45
configuring a QoS policy map 2-251
configuring auto 2-13
defining a named aggregate policer 2-276
defining default CoS value 2-279
defining ingress CoS-to-DSCP mapping 2-283
displaying aggregate policer information 2-491
displaying auto configuration 2-314
displaying class maps information 2-324
displaying configuration information 2-314
displaying configurations of policies 2-473
displaying policy map information 2-469, 2-476
displaying QoS information 2-490
displaying QoS map information 2-494
enabling global configuration mode 2-272
enabling per-VLAN QoS for a Layer 2 interface 2-291
enabling QoS on an interface 2-273
mapping DSCP values to transmit queues 2-285
mapping egress DSCP-to-CoS 2-285
mapping the DSCP-to-CoS value 2-285
setting the mapping of policed DSCP values 2-287
setting the trust state 2-289
specifying flow-based match criteria 2-230
QoS CoS
configuring for tunneled Layer 2 protocol packets 2-194
defining default CoS value 2-279
qos dbl 2-280
question command 1-1
queueing information
displaying 2-493
R
Rapid PVST
switching between PVST and MST 2-554
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 2-292
changing from active to standby supervisor engine 2-293
displaying information 2-496
displaying redundancy facility information 2-496
displaying RF client list 2-496
displaying RF operational counters 2-496
displaying RF states 2-496
enabling automatic synchronization 2-16
forcing switchover to standby supervisor engine 2-293
set the mode 2-236
synchronizing the route processor configurations 2-228
related documentation xvii
remote SPAN
renew commands
ip dhcp snooping database 2-297
resetting PVLAN trunk
setting switchport to trunk 2-587
rj45 connector, selecting the connector 2-235
ROM monitor mode
summary 1-6
Route Processor Redundancy
RPR
set the redundancy mode 2-236
RSPAN
converting VLAN to RSPAN VLAN 2-296
displaying list 2-532
S
saving configuration changes 1-11
secure address, configuring 2-261
secure ports, limitations 2-593
set the redundancy mode 2-236
sfp connector, selecting the connector 2-235
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 2-503
slot0
displaying information about the system 2-505
SMF
debugging address insertions and deletions 2-73
SNMP
debugging spanning tree activities 2-74
ifIndex persistence
clearing SNMP ifIndex commands 2-537
compress SNMP ifIndex table format 2-542
disabling globally 2-541
disabling on an interface 2-538
enabling globally 2-541
enabling on an interface 2-538
informs
disabling 2-539
enabling 2-539
traps
configuring to send when storm occurs 2-579
disabling 2-539
enabling 2-539
mac-notification
adding 1
removing 1
software MAC filter
SPAN commands
configuring a SPAN session to monitor 2-238
displaying SPAN session information 2-516, 2-580
SPAN enhancements
displaying status 2-465
Spanning Tree Protocol
SPAN session
displaying session information 2-465
filter ACLs 2-238
specify encap type 2-238
turn off host learning based on ingress packets 2-238
special characters
anchoring, table 1-10
SSO 2-236
standard desktop
enabling Cisco-recommended features 2-217
standard desktop and Cisco IP phone
enabling Cisco-recommended features 2-219
sticky address, configuring 2-262
sticky-ARP
disabling on PVLANs 2-179
enabling on PVLANs 2-179
sticky port
deleting 2-43
enabling security 2-592
storm control
configuring for action when storm occurs 2-579
disabling suppression mode 2-344
displaying settings 2-515
enabling 2-579
enabling broadcast 2-579, 2-581
enabling multicast 2-579, 2-581
enabling suppression mode 2-344
enabling timer to recover from error disable 2-118
multicast, enabling 2-581
setting high and low levels 2-579
setting suppression level 2-344
STP
configuring link type for a port 2-552
configuring tunneling encapsulation rate 2-196
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 2-549
displaying active interfaces only 2-507
displaying BackboneFast status 2-507
displaying bridge status and configuration 2-507
displaying spanning tree debug messages 2-74
displaying summary of interface information 2-507
enabling BPDU filtering by default on all PortFast ports 2-567
enabling BPDU filtering on an interface 2-545
enabling BPDU guard by default on all PortFast ports 2-569
enabling BPDU guard on an interface 2-547
enabling extended system ID 2-550
enabling loop guard as a default on all ports 2-553
enabling PortFast by default on all access ports 2-570
enabling PortFast mode 2-565
enabling protocol tunneling for 2-193
enabling root guard 2-551
enabling spanning tree BackboneFast 2-544
enabling spanning tree on a per VLAN basis 2-574
enabling spanning tree UplinkFast 2-572
setting an interface priority 2-571
setting drop threshold for 2-195
setting pathcost 2-548
setting the default pathcost calculation method 2-564
subinterface configuration mode, summary 1-6
SVI
creating a Layer 3 interface on a VLAN 2-134
switchport 2-608
switchport interfaces
displaying status of Layer 3 port 2-373
displaying status of native VLAN tagging 2-373
switch shim
debugging 2-76
disabling debugging 2-76
switch to router connection
enabling Cisco-recommended features 2-221
switch to switch connection
enabling Cisco-recommended features 2-223
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 2-206
match syntax description 2-22
multipliers 1-9
relationship between duplex and speed commands 2-577
show cable-diagnostics tdr command output fields 2-320
show cdp neighbors detail field descriptions 2-323
show cdp neighbors field descriptions 2-322
show ip interface field descriptions 2-404
show policy-map control-plane field descriptions 2-472
show vlan command output fields 2-531
show vtp command output fields 2-535
special characters 1-9
special characters used for anchoring 1-10
speed command options 2-230, 2-576
valid interface types 2-129
TAC
displaying information useful to TAC 2-518
TCAM
debugging spanning tree activities 2-74
TDR
displaying cable diagnostic test results 2-319
test condition of copper cables 2-613
temperature readings
displaying information 2-341
timer information 2-345
traffic shaping
enable on an interface 2-307
traps, enabling 2-539
trunk encapsulation
setting format 2-608
trunk interfaces
displaying trunk interfaces information 2-380
trust state
setting 2-141
tunnel ports
displaying information about Layer 2 protocol 2-438
TX queues
allocating bandwidth 2-621
returning to default values 2-621
setting priority to high 2-621
specifying burst size 2-621
specifying traffic rate 2-621
U
UDLD
displaying administrative and operational status 2-520
enabling by default on all fiber interfaces 2-623
enabling on an individual interface 2-625
preventing a fiber interface from being enabled 2-625
resetting all shutdown ports 2-627
setting the message timer 2-623
Unidirectional Link Detection
unknown multicast traffic, preventing 2-586
unknown unicast traffic, preventing 2-586
user EXEC mode, summary 1-5
username
setting password and privilege level 2-629
V
VACLs
access-group mode 2-5
applying VLAN access maps 2-639
displaying VLAN access map information 2-525
specifying an action in a VLAN access map 2-9
specifying the match clause for a VLAN access-map sequence 2-229
using a VLAN filter 2-639
VLAN
applying an ARP ACL 2-135
configuring 2-632
converting to RSPAN VLAN 2-296
displaying CEF information 2-386
displaying CEF next-hop information 2-386
displaying information on switch interfaces 2-395, 2-399
displaying information on VLAN switch interfaces 2-402
displaying information sorted by group IP address 2-395, 2-399
displaying IP address and version information 2-395, 2-399
displaying Layer 2 VLAN information 2-521
displaying statistical information 2-463
displaying VLAN information 2-523
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 2-636
native frames
enabling tagging on all 802.1Q trunk ports 2-638
pruning the list for VTP 2-608
setting the list of allowed 2-608
VLAN Access Control Lists
VLAN access map
VLAN database
resetting 2-298
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 2-640
displaying
internal VLAN allocation information 2-528
RSPAN VLANs 2-532
entering VLAN configuration mode 2-636
VMPS
configuring servers 2-644
reconfirming dynamic VLAN assignments 2-642
voice VLANs
enabling 2-582
VoIP
configuring auto-QoS 2-13
VQP
per-server retry count 2-643
reconfirming dynamic VLAN assignments 2-642
VTP
configuring the administrative domain name 2-648
configuring the device in VTP client mode 2-647
configuring the device in VTP server mode 2-651
configuring the device in VTP transparent mode 2-652
configuring tunnel encapsulation rate 2-196
creating a VTP domain password 2-649
displaying domain information 2-534
displaying statistics information 2-534
enabling protocol tunneling for 2-193
enabling pruning in the VLAN database 2-650
enabling VTP version 2 mode 2-653
modifying the VTP configuration storage file name 2-646
set drop threshold for 2-195
VTP protocol code
activating debug messages 2-82
deactivating debug messages 2-82
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