- 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 and Abbreviations
- 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 1-11
* 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 2-127
showing the mode 2-357
802.1Q trunk ports and native VLANs 2-648
802.1Q tunnel ports
configuring 2-597
802.1S Multiple Spanning Tree
802.1X
configuring for multiple hosts 2-100
configuring for single host 2-100
configuring multiple domains 2-100
disabling port control 2-93
enabling port control 2-93
802.1X Critical Authentication
disabling on a port 2-94
disabling on a VLAN 2-97
EAPOL
disabling send success packets 2-95
enabling send success packets 2-95
enabling on a port 2-94
enabling on a VLAN 2-97
returning delay time to default setting 2-96
setting delay time on a port 2-96
802.1X Port Based Authentication
debugging 802.1X Port Based Authentication 2-57
displaying port based authentication 2-342
enabling accounting for authentication sessions 2-3
enabling authentication on the system 2-110
enabling guest VLAN 2-98
enabling guest VLAN supplicant 2-91, 2-99
enabling manual control of auth state 2-106
enabling periodic re-authentication of the client 2-109
initializing re-authentication of dot1x ports 2-108
initializing state machines 2-102
receive session termination message upon reboot 2-4
setting maximum number for EAP requests 2-105
setting the reauthentication timer 2-111
A
abbreviating commands
context-sensitive help 1-1
Access Gateway Module
connecting to a module 2-12
connecting to a remote module 2-299
connecting to a specific remote module 2-309
access-group
displaying mac interface 2-450
show mode interface 2-313
access groups
IP 2-5
access lists
clearing an access template 2-28
defining ARP 2-11
displaying ARP information 2-316
See also ACLs, MAC ACLs, and VACLs
access maps
applying with VLAN filter 2-649
ACLs
access-group mode 2-5
balancing hardware regions 2-8
determining ACL hardware programming 2-6
displaying mac access-group interface 2-450
using ACL naming conventions for MAC ACLs 2-211
action clause
specifying drop or forward action in a VACL 2-9
addresses, configuring a maximum 2-268
adjacency
debugging the adjacency table 2-51
disabling the debug facility 2-51
displaying information about the adjacency table 2-314
displaying IPC table entries 2-51
aggregate policer
displaying information 2-498
aging time
displaying MAC address aging time 2-453
MAC address table 2-214
alarms
displaying operational status 2-346
alternation
description 1-10
anchoring
description 1-10
ARP
access list, displaying detailed information 2-316
defining access-lists 2-11
ARP inspection
enforce certain types of checking 2-144
ARP packet
deny based on DHCP bindings 2-87
permit based on DHCP bindings 2-254
authentication
setting username 2-639
using an MD5-type encryption method 2-639
verifying MD5 signature 2-640
verifying the checksum for Flash memory 2-640
auth fail VLAN
enable on a port 2-92
set max number of attempts 2-91
authorization state
enabling manual control 2-106
authorization state of a controlled port 2-106
automatic installation
displaying status 2-317
automatic medium-dependent interface crossover
Auto-MDIX
disabling 2-238
enabling 2-238
auto-negotiate interface speed
example 2-586
auto-QoS
configuring for VoIP 2-13
displaying configuration 2-318
B
baby giants
displaying the system MTU setting 2-524
setting the maximum Layer 2 payload size 2-622
BackboneFast
displaying debugging messages 2-76
displaying spanning tree status 2-514
enabling debugging 2-76
bindings
store for DHCP snooping 2-154
BOOT environment variable
displaying information 2-322
bootflash
displaying information 2-320
BPDUs
debugging spanning tree activities 2-74
bridge protocol data units
broadcast suppression level
C
cable diagnostics
TDR
displaying test results 2-323
testing conditions of copper cables 2-623
Catalyst 4507R 2-264
CDP
configuring tunneling encapsulation rate 2-201
displaying
neighbor information 2-325
enabling protocol tunneling for 2-197
set drop threshold for 2-199
CEF
displaying next-hop information 2-391
displaying VLAN configuration information 2-391
cisco-desktop
macro apply 2-221
Cisco Express Forwarding
cisco-phone
macro apply 2-223
cisco-router
macro apply 2-225
cisco-switch
macro apply 2-227
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 1-11
searching outputs 1-6
single-character patterns 1-7
using 1-6
command modes
accessing privileged EXEC mode 1-5
exiting 1-5
understanding user EXEC and configuration modes 1-5
condition interface
debugging interface-related activities 2-53
condition vlan
debugging VLAN output 2-56
configuration, saving 1-11
configuring
root as secondary 2-570
configuring a SPAN session to monitor
limit SPAN source traffic 2-243
configuring forward delay 2-566
configuring root as primary 2-570
CoPP
attaching
policy map to control plane 2-307
displaying
policy-map class information 2-476
entering configuration mode 2-49
removing
service policy from control plane 2-307
CoS
assigning to Layer 2 protocol packets 2-198
CoS QoS default
defining value on an interface 2-283
Cost of Service
counters
clearing interface counters 2-23
D
DAI
clear statistics 2-30
DBL
displaying qos dbl 2-499
enabling DBL globally on the switch 2-284
debug commands
debugging backup events 2-52
debugging DHCP snooping events 2-62
debugging DHCP snooping messages 2-63
debugging EtherChannel/PAgP/shim 2-58
debugging IPC activity 2-61
debugging IP DHCP snooping security messages 2-64
debugging NVRAM activities 2-67
debugging PAgP activities 2-68
debugging port manager activities 2-71
debugging spanning tree activities 2-74
debugging spanning tree backbonefast 2-76
debugging spanning tree UplinkFast 2-79
debugging supervisor redundancy 2-73
debugging VLAN manager activities 2-80
displaying monitor activity 2-66
displaying the adjacency table 2-51
enabling debug dot1x 2-57
enabling debugging messages for ISL VLAN IDs 2-82
enabling debugging messages for VTP 2-83
enabling debugging of UDLD activity 2-84
enabling switch shim debugging 2-77
enabling VLAN manager file system error tests 2-81
limiting debugging output for VLANs 2-56
limiting interface debugging output 2-53
limiting output for debugging standby state changes 2-54
shortcut to the debug condition interface 2-60
debugging
activity monitoring 2-66
DHCP snooping events 2-62
DHCP snooping packets 2-63
IPC activities 2-61
IP DHCP snooping security packets 2-64
NVRAM activities 2-67
PAgP activities 2-68
PAgP shim 2-58
PM activities 2-71
spanning tree BackboneFast events 2-76
spanning tree switch shim 2-77
spanning tree UplinkFast events 2-79
VLAN manager activities 2-80
VLAN manager IOS file system error tests 2-81
VTP protocol debug messages 2-83
debug spanning tree switch 2-77
debug sw-vlan vtp 2-83
default CoS value 2-283
default form of a command, using 1-6
defining egress DSCP-to-CoS mapping 2-289
DHCP
clearing database statistics 2-32
DHCP bindings
configuring bindings 2-153
deny ARP packet based on matches 2-87
permit ARP packet based on matches 2-254
DHCP snooping
clearing database 2-31
displaying binding table 2-393
displaying configuration information 2-392
displaying status of DHCP database 2-396
displaying status of error detection 2-349
enabling DHCP globally 2-152
enabling IP source guard 2-185
enabling on a VLAN 2-160
enabling option 82 2-156, 2-157
enabling rate limiting on an interface 2-158
enabling trust on an interface 2-159
establishing binding configuration 2-153
renew binding database 2-301
store generated bindings 2-154
diagnostic test
bootup packet memory 2-336
displaying attributes 2-330
display module-based results 2-332
running 2-90
show results for TDR 2-323
testing conditions of copper cables 2-623
displaying error disable recovery 2-350
displaying inline power status 2-490
displaying monitoring activity 2-66
displaying SEEPROM information
GBIC 2-358
displaying SPAN session information 2-523, 2-588
document conventions xviii
document organization xvii
DoS
CoPP
attaching policy map to control plane 2-307
displaying policy-map class information 2-476
entering configuration mode 2-49
removing service policy from control plane 2-307
entering
CoPP configuration mode 2-49
DOS attack
protecting system's resources 2-139
drop threshold, Layer 2 protocol tunneling 2-199
DSCP rewrite for IP packets
enable 2-292
dual-capable port
selecting a connector 2-240
duplex mode
configuring autonegotiation on an interface 2-113
configuring full duplex on an interface 2-113
configuring half duplex on an interface 2-113
dynamic ARP inspection
preventing 2-139
Dynamic Buffer Limiting
Dynamic Host Configuration Protocol
E
EAP
restarting authentication process 2-105
EIGRP (Enhanced IGRP)
filters
routing updates, preventing 2-251
enabling
debugging for UDLD 2-84
voice VLANs 2-590
environmental
alarms 2-346
displaying information 2-346
status 2-346
temperature 2-346
erase a file 2-115
error disable detection
enabling error disable detection 2-118
error-disabled state
displaying 2-377
error disable recovery
configuring recovery mechanism variables 2-120
displaying recovery timer information 2-350
enabling ARP inspection timeout 2-120
specifying recovery cause 2-120
EtherChannel
assigning interfaces to EtherChannel groups 2-17
debugging EtherChannel 2-58
debugging PAgP shim 2-58
debugging spanning tree activities 2-74
displaying information for a channel 2-351
removing interfaces from EtherChannel groups 2-17
EtherChannel guard
detecting STP misconfiguration 2-557
Explicit Host Tracking
clearing the database 2-35
enabling per-VLAN 2-172
expressions
matching multiple expression occurrences 1-9
multiple-character patterns 1-8
multiplying pattern occurrence 1-11
single-character patterns 1-7
Extensible Authentication Protocol
F
field replaceable unit (FRU)
displaying status information 2-346
filters
EIGRP
routing updates, preventing 2-251
Flash memory file system
displaying file system information 2-320
verifying checksum 2-640
flow control
configuring a gigabit interface for pause frames 2-123
displaying per-interface statistics for flow control 2-355
G
GBIC
displaying SEEPROM information 2-358
Gigabit Ethernet interface
clearing the hardware logic 2-26
Gigabit Ethernet uplink
selecting 2-127
showing the mode 2-357
global configuration mode
using 1-5
H
hardware module
resetting a module by toggling the power 2-126
hardware uplink
selecting the mode 2-127
showing the mode 2-357
helper addresses, IP 2-410
hot standby protocol
debugging 2-54
disabling debugging 2-54
limiting output 2-54
I
IDPROMs
displaying SEEPROM information
chassis 2-358
clock module 2-358
fan trays 2-358
module 2-358
mux buffer 2-358
power supplies 2-358
supervisor engine 2-358
ifIndex persistence
clearing SNMP ifIndex commands 2-545
compress SNMP ifIndex table format 2-550
disabling globally 2-549
disabling on an interface 2-546
enabling globally 2-549
enabling on an interface 2-546
IGMP
applying filters for host joining on Layer 2 interfaces 2-162
clearing IGMP group cache entries 2-33
configuring frequency for IGMP host-query messages 2-165
creating an IGMP profile 2-164
displaying IGMP interface configuration information 2-398
displaying profiles 2-400
setting maximum group numbers 2-163
IGMP profiles
displaying 2-400
IGMP snooping
clearing the EHT database 2-35
configuring a Layer 2 interface as a group member 2-176
configuring a Layer 2 interface as a multicast router 2-174
configuring a static VLAN interface 2-176
displaying multicast information 2-407
displaying VLAN information 2-401, 2-405, 2-408
enabling 2-167
enabling immediate-leave processing 2-173
enabling on a VLAN 2-171
enabling per-VLAN Explicit Host Tracking 2-172
informs
enabling 2-547
inline power
displaying inline power status 2-490
In Service Software Upgrade
inspection log
clearing log buffer 2-29
interface
displaying suppressed multicast bytes 2-371
interface capabilities
displaying 2-367
interface configuration mode
summary 1-5
interface link
display cable disconnect time 2-374
interfaces
configuring dot1q tunnel ports 2-597
creating an interface-range macro 2-86
debugging output of interface related activities 2-53
displaying description 2-373
displaying error-disabled state 2-377
displaying information when tunneling is enabled 2-444
displaying status 2-373
displaying traffic for a specific interface 2-364
entering interface configuration mode 2-131
executing a command on multiple ports in a range 2-134
selecting an interface to configure 2-131
setting a CoS value for Layer 2 packets 2-198
setting drop threshold for Layer 2 packets 2-199
setting the interface type 2-597
interface speed
configuring interface speed 2-584
interface transceiver
displaying diagnostic data 2-380
internal VLAN allocation
configuring 2-650
default setting 2-650
displaying allocation information 2-536
Internet Group Management Protocol
IP ARP
applying ARP ACL to VLAN 2-137
clearing inspection statistics 2-30
clearing status of log buffer 2-29
controlling packet logging 2-147
enabling dynamic inspection 2-146
limit rate of incoming requests 2-139
set per-port config trust state 2-143
showing status of dynamic ARP inspection 2-387
showing status of log buffer 2-390
IPC
debugging IPC activities 2-61
IP DHCP Snooping
IP header validation
disabling 2-184
enabling 2-184
IP interfaces
displaying usability status 2-409
IP multicast
displaying multicast routing table information 2-415
IP packets
enable DSCP rewrite 2-292
IP phone and standard desktop
enabling Cisco-recommended features 2-223
IP Port Security
enabling 2-185
IP source binding
adding or deleting 2-181
displaying bindingstagging 2-420
IP source guard
debugging messages 2-64
displaying configuration and filters 2-421
enabling on DHCP snooping 2-185
ISSU
canceling process 2-187
configuring rollback timer 2-196
displaying capability 2-425
displaying client information 2-427
displaying compatibility matrix 2-429
displaying config-sync failure information 2-433
displaying endpoint information 2-435
displaying entities 2-436
displaying FSM session 2-437
displaying messages 2-438
displaying negotiated 2-439
displaying rollback-timer 2-440
displaying session information 2-441
displaying software version 2-442
displaying state 2-442
forcing switchover to standby supervisor engine 2-195
loading new image 2-190
mismatched command listing 2-192
starting process 2-194
stopping rollback timer 2-188
J
Jumbo frames
enabling jumbo frames 2-247
L
LACP
deselecting channeling protocol 2-19
enabling LACP on an interface 2-19
setting channeling protocol 2-19
Layer 2
displaying ACL configuration 2-450
Layer 2 interface type
specifying a nontrunking, nontagged single VLAN interface 2-597
specifying a trunking VLAN interface 2-597
Layer 2 protocol ports
displaying 2-444
Layer 2 protocol tunneling error recovery 2-201
Layer 2 switching
enabling voice VLANs 2-590
modifying switching characteristics 2-590
Layer 2 traceroute
IP addresses 2-628
Layer 3 switching
displaying information about an adjacency table 2-314
displaying port status 2-378
displaying status of native VLAN tagging 2-378
link-status event messages
disabling
enabling
log buffer
show status 2-390
logging
controlling IP ARP packets 2-147
M
MAC Access Control Lists
MAC ACLs
defining extended MAC access list 2-211
displaying MAC ACL information 2-533
naming an ACL 2-211
MAC address filtering
configuring 2-220
disabling 2-220
enabling 2-220
MAC address table
adding static entries 2-232
clearing dynamic entries 2-39, 2-41
configuring aging time 2-214
displaying dynamic table entry information 2-455
displaying entry count 2-454
displaying information 2-451
displaying interface-based information 2-457
displaying multicast information 2-459
displaying notification information 2-461
displaying protocol-based information 2-463
displaying static table entry information 2-465
displaying the MAC address aging time 2-453
displaying VLAN-based information 2-467
enabling authentication bypass 2-103
enabling notifications 2-218
learning in the protocol buckets 2-215
removing static entries 2-232
MAC address tables
adding static entries 2-220
deleting secure or specific addresses 2-43
disabling IGMP snooping on static MAC addresses 2-220
removing static entries 2-220
mac-address-table static 2-220
MAC address unicast filtering
dropping unicast traffic 2-220
macro
displaying descriptions 2-231
macro keywords
help strings 2-2
macros
adding a global description 2-231
cisco global 2-229
system-cpp 2-230
mapping secondary VLANs to MST instance 2-275
mapping VLAN(s) to an MST instance 2-129
match subcommand
accessing 2-21
maximum transmission unit (MTU)
displaying the system MTU setting 2-524
setting the maximum Layer 2 payload size 2-622
MD5
verifying MD5 signature 2-640
message digest 5
MFIB
clearing ip mfib counters 2-36
clearing ip mfib fastdrop 2-37
displaying all active MFIB routes 2-412
displaying MFIB fastdrop table entries 2-414
enabling IP MFIB fastdrops 2-178
modes
access-group 2-5
show access-group interface 2-313
switching between PVST+, MST, and Rapid PVST 2-562
module password clearing 2-25
module reset
resetting a module by toggling the power 2-126
--More-- prompt
filter 1-6
search 1-7
MST
designating the primary and secondary root 2-570
displaying MST protocol information 2-519
displaying region configuration information 2-519
displaying spanning tree information 2-519
entering MST configuration submode 2-564
setting configuration revision number 2-303
setting path cost and port priority for instances 2-563
setting the forward delay timer for all instances 2-566
setting the hello-time delay timer for all instances 2-567
setting the max-age timer for all instances 2-568
setting the MST region name 2-248
specifying the maximum number of hops 2-569
switching between PVST+ and Rapid PVST 2-562
using the MST configuration submode revision command 2-303
using the submode name command 2-248
MTU
displaying global MTU settings 2-524
multicast
enabling storm control 2-589
multicast/unicast packets
prevent forwarding 2-596
Multicast Forwarding Information Base
multiple-character patterns 1-8
Multiple Spanning Tree
N
native VLAN
controlling tagging of traffic 2-617
displaying ports eligible for native tagging 2-535
displaying ports eligible for tagging 2-535
enabling tagging on 802.1Q trunk ports 2-648
specifing the tagging of traffic 2-618
NetFlow
enabling NetFlow statistics 2-179
including infer fields in routing statistics 2-179
next-hop
displaying CEF VLAN information 2-391
no form of a command, using 1-6
NVRAM
debugging NVRAM activities 2-67
O
output
pattern searches 1-7
P
packet forwarding
prevent unknown packets 2-596
packet memory failure
direct switch action upon detection 2-89
packet memory test
bootup, displaying results 2-336, 2-338
ongoing, displaying results 2-340
PACL
access-group mode 2-5
paging prompt
PAgP
clearing port channel information 2-42
debugging PAgP activity 2-68
deselecting channeling protocol 2-19
displaying port channel information 2-473
hot standby mode
returning to defaults 2-250
selecting ports 2-250
input interface of incoming packets
learning 2-249
returning to defaults 2-249
setting channeling protocol 2-19
parentheses 1-11
password
clearing on an intelligent line module 2-25
establishing enhanced password security 2-639
setting username 2-639
PBR
redistributing route maps xviii
PM activities
debugging 2-71
disabling debugging 2-71
Policy Based Routing
port, dual-capable
selecting the connector 2-240
Port Aggregation Protocol
port-based authentication
displaying debug messages 2-57
displaying statistics and status 2-342
enabling 802.1X 2-106
host modes 2-100
manual control of authorization state 2-106
periodic re-authentication
enabling 2-109
re-authenticating 802.1X-enabled ports 2-108
switch-to-client frame-retransmission number 2-105
port channel
accessing 2-133
creating 2-133
displaying information 2-473
load distribution method
resetting to defaults 2-258
setting 2-258
port range
executing 2-134
port security
debugging ports security 2-72
deleting secure or specific addresses 2-43
displaying settings for an interface or switch 2-483
enabling 2-602
filter source IP and MAC addresses 2-185
setting action upon security violation 2-602
setting the rate limit for bad packets 2-602
sticky port 2-602
Port Trust Device
displaying 2-500
power status
displaying inline power 2-490
displaying power status 2-490
power supply
configuring combined and redundant power on the Catalyst 4507R 2-264
configuring inline power 2-261
configuring power consumption 2-263
displaying the SEEPROM 2-358
setting inline power state 2-260
Private VLAN
privileged EXEC mode, summary 1-5
prompts
system 1-5
protocol tunneling
configuring encapsulation rate 2-201
disabling 2-197
displaying port information 2-444
enabling 2-197
setting a CoS value for Layer 2 packets 2-198
setting a drop threshold for Layer 2 packets 2-199
PVLANs
configuring isolated, primary, and community PVLANs 2-269
controlling tagging of native VLAN traffic 2-617
disabling sticky-ARP 2-182
displaying map information for VLAN SVIs 2-376
displaying PVLAN information 2-538
enabling interface configuration mode 2-597
enabling sticky-ARP 2-182
mapping VLANs to the same SVI 2-273
specifying host ports 2-597
specifying promiscuous ports 2-597
PVST+
switching between PVST and MST 2-562
Q
QoS
account Layer 2 encapsulation 2-278
attaching a policy-map to an interface 2-304
automatic configuration 2-13
clearing aggregate counters 2-45
configuring a QoS policy map 2-256
configuring auto 2-13
defining a named aggregate policer 2-280
defining default CoS value 2-283
defining ingress CoS-to-DSCP mapping 2-287
displaying aggregate policer information 2-498
displaying auto configuration 2-318
displaying class maps information 2-328
displaying configuration information 2-318
displaying configurations of policies 2-479
displaying policy map information 2-475, 2-482
displaying QoS information 2-497
displaying QoS map information 2-501
enabling global configuration mode 2-276
enabling per-VLAN QoS for a Layer 2 interface 2-295
enabling QoS on an interface 2-277
mapping DSCP values to transmit queues 2-289
mapping egress DSCP-to-CoS 2-289
mapping the DSCP-to-CoS value 2-289
setting the mapping of policed DSCP values 2-291
setting the trust state 2-293
specifying flow-based match criteria 2-234
QoS CoS
configuring for tunneled Layer 2 protocol packets 2-198
defining default CoS value 2-283
qos dbl 2-284
question command 1-1
queueing information
displaying 2-500
R
Rapid PVST
switching between PVST and MST 2-562
re-authenticating 802.1X-enabled ports 2-108
re-authentication
periodic 2-109
set the time 2-111
reboots
restoring bindings across 2-153
redundancy
accessing the main CPU 2-296
changing from active to standby supervisor engine 2-297
displaying information 2-503
displaying redundancy facility information 2-503
displaying RF client list 2-503
displaying RF operational counters 2-503
displaying RF states 2-503
enabling automatic synchronization 2-16
forcing switchover to standby supervisor engine 2-297
set the mode 2-241
synchronizing the route processor configurations 2-232
related documentation xvii
remote SPAN
renew commands
ip dhcp snooping database 2-301
resetting PVLAN trunk
setting switchport to trunk 2-597
rj45 connector, selecting the connector 2-240
ROM monitor mode
summary 1-6
Route Processor Redundancy
RPR
set the redundancy mode 2-241
RSPAN
converting VLAN to RSPAN VLAN 2-300
displaying list 2-540
S
saving configuration changes 1-11
secure address, configuring 2-266
secure ports, limitations 2-603
set the redundancy mode 2-241
sfp connector, selecting the connector 2-240
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 2-510
slot0
displaying information about the system 2-512
SNMP
debugging spanning tree activities 2-74
ifIndex persistence
clearing SNMP ifIndex commands 2-545
compress SNMP ifIndex table format 2-550
disabling globally 2-549
disabling on an interface 2-546
enabling globally 2-549
enabling on an interface 2-546
informs
disabling 2-547
enabling 2-547
traps
configuring to send when storm occurs 2-587
disabling 2-547
enabling 2-547
mac-notification
adding 1
removing 1
SPAN commands
configuring a SPAN session to monitor 2-243
displaying SPAN session information 2-523, 2-588
SPAN enhancements
displaying status 2-471
Spanning Tree Protocol
SPAN session
displaying session information 2-471
filter ACLs 2-243
specify encap type 2-243
turn off host learning based on ingress packets 2-243
special characters
anchoring, table 1-10
SSO 2-241
standard desktop
enabling Cisco-recommended features 2-221
standard desktop and Cisco IP phone
enabling Cisco-recommended features 2-223
sticky address, configuring 2-267
sticky-ARP
disabling on PVLANs 2-182
enabling on PVLANs 2-182
sticky port
deleting 2-43
enabling security 2-602
storm control
configuring for action when storm occurs 2-587
disabling suppression mode 2-349
displaying settings 2-522
enabling 2-587
enabling broadcast 2-587, 2-589
enabling multicast 2-587, 2-589
enabling suppression mode 2-349
enabling timer to recover from error disable 2-120
multicast, enabling 2-589
setting high and low levels 2-587
setting suppression level 2-349
STP
configuring link type for a port 2-560
configuring tunneling encapsulation rate 2-201
debugging all activities 2-74
debugging spanning tree activities 2-74
debugging spanning tree BackboneFast events 2-76
debugging spanning tree UplinkFast 2-79
detecting misconfiguration 2-557
displaying active interfaces only 2-514
displaying BackboneFast status 2-514
displaying bridge status and configuration 2-514
displaying spanning tree debug messages 2-74
displaying summary of interface information 2-514
enabling BPDU filtering by default on all PortFast ports 2-575
enabling BPDU filtering on an interface 2-553
enabling BPDU guard by default on all PortFast ports 2-577
enabling BPDU guard on an interface 2-555
enabling extended system ID 2-558
enabling loop guard as a default on all ports 2-561
enabling PortFast by default on all access ports 2-578
enabling PortFast mode 2-573
enabling protocol tunneling for 2-197
enabling root guard 2-559
enabling spanning tree BackboneFast 2-552
enabling spanning tree on a per VLAN basis 2-582
enabling spanning tree UplinkFast 2-580
setting an interface priority 2-579
setting drop threshold for 2-199
setting pathcost 2-556
setting the default pathcost calculation method 2-572
subinterface configuration mode, summary 1-6
SVI
creating a Layer 3 interface on a VLAN 2-136
switching characteristics
excluding from link-up calculation 2-594
modifying 2-594
returning to interfaces
capture function 2-594
switchport 2-618
switchport interfaces
displaying status of Layer 3 port 2-378
displaying status of native VLAN tagging 2-378
switch shim
debugging 2-77
disabling debugging 2-77
switch to router connection
enabling Cisco-recommended features 2-225
switch to switch connection
enabling Cisco-recommended features 2-227
switch virtual interface
sw-vlan 2-80
system prompts 1-5
T
Tab key
command completion 1-1
tables
characters with special meaning 1-7
mac access-list extended subcommands 2-211
match syntax description 2-22
multipliers 1-9
relationship between duplex and speed commands 2-585
show cable-diagnostics tdr command output fields 2-324
show cdp neighbors detail field descriptions 2-327
show cdp neighbors field descriptions 2-326
show ip interface field descriptions 2-410
show policy-map control-plane field descriptions 2-478
show vlan command output fields 2-539
show vtp command output fields 2-543
special characters 1-9
special characters used for anchoring 1-10
speed command options 2-234, 2-585
valid interface types 2-131
TAC
displaying information useful to TAC 2-525
TCAM
debugging spanning tree activities 2-74
TDR
displaying cable diagnostic test results 2-323
test condition of copper cables 2-623
temperature readings
displaying information 2-346
timer information 2-350
traffic shaping
enable on an interface 2-311
traps, enabling 2-547
trunk encapsulation
setting format 2-618
trunk interfaces
displaying trunk interfaces information 2-385
trust state
setting 2-143
tunnel ports
displaying information about Layer 2 protocol 2-444
TX queues
allocating bandwidth 2-631
returning to default values 2-631
setting priority to high 2-631
specifying burst size 2-631
specifying traffic rate 2-631
U
UDLD
displaying administrative and operational status 2-527
enabling by default on all fiber interfaces 2-633
enabling on an individual interface 2-635
preventing a fiber interface from being enabled 2-635
resetting all shutdown ports 2-637
setting the message timer 2-633
Unidirectional Link Detection
unknown multicast traffic, preventing 2-596
unknown unicast traffic, preventing 2-596
user EXEC mode, summary 1-5
username
setting password and privilege level 2-639
V
VACLs
access-group mode 2-5
applying VLAN access maps 2-649
displaying VLAN access map information 2-533
specifying an action in a VLAN access map 2-9
specifying the match clause for a VLAN access-map sequence 2-233
using a VLAN filter 2-649
VLAN
applying an ARP ACL 2-137
configuring 2-642
converting to RSPAN VLAN 2-300
displaying CEF information 2-391
displaying CEF next-hop information 2-391
displaying information on switch interfaces 2-401, 2-405
displaying information on VLAN switch interfaces 2-408
displaying information sorted by group IP address 2-401, 2-405
displaying IP address and version information 2-401, 2-405
displaying Layer 2 VLAN information 2-529
displaying statistical information 2-469
displaying VLAN information 2-531
enabling dynamic ARP inspection 2-146
enabling Explicit Host Tracking 2-172
enabling guest per-port 2-98
enabling guest VLAN supplicant 2-91, 2-99
entering VLAN configuration mode 2-646
native frames
enabling tagging on all 802.1Q trunk ports 2-648
pruning the list for VTP 2-618
setting the list of allowed 2-618
VLAN Access Control Lists
VLAN access map
VLAN database
resetting 2-302
VLAN debugging
limiting output 2-56
VLAN link-up calculation
excluding a switch port 2-594
including a switch port 2-594
VLAN manager
debugging 2-80
disabling debugging 2-80
IOS file system error tests
debugging 2-81
disabling debugging 2-81
VLAN Query Protocol
VLAN query protocol (VQPC)
debugging 2-85
VLANs
clearing
counters 2-47
clearing hardware logic 2-27
configuring
internal allocation scheme 2-650
displaying
internal VLAN allocation information 2-536
RSPAN VLANs 2-540
entering VLAN configuration mode 2-646
VMPS
configuring servers 2-654
reconfirming dynamic VLAN assignments 2-652
voice VLANs
enabling 2-590
VoIP
configuring auto-QoS 2-13
VQP
per-server retry count 2-653
reconfirming dynamic VLAN assignments 2-652
VTP
configuring the administrative domain name 2-658
configuring the device in VTP client mode 2-657
configuring the device in VTP server mode 2-661
configuring the device in VTP transparent mode 2-662
configuring tunnel encapsulation rate 2-201
creating a VTP domain password 2-659
displaying domain information 2-542
displaying statistics information 2-542
enabling protocol tunneling for 2-197
enabling pruning in the VLAN database 2-660
enabling VTP version 2 mode 2-663
modifying the VTP configuration storage file name 2-656
set drop threshold for 2-199
VTP protocol code
activating debug messages 2-83
deactivating debug messages 2-83
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