- 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
802.1Q trunk ports and native VLANs 2-511
802.1Q tunnel ports
configuring 2-470
802.1S Multiple Spanning Tree
802.1X Port Based Authentication
allowing multiple hosts on a port 2-86
debugging 802.1X Port Based Authentication 2-49
displaying port based authentication 2-264
enabling accounting for authentication sessions 2-3
enabling authentication on the system 2-91
enabling guest VLAN 2-82
enabling manual control of auth state 2-87
enabling periodic re-authentication of the client 2-90
initializing re-authentication of dot1x ports 2-89
initializing state machines 2-83
receive session termination message upon reboot 2-4
setting maximum number for EAP requests 2-85
A
abbreviating commands
context-sensitive help 1-1
Access Gateway Module
connecting to a module 2-11
connecting to a remote module 2-235
connecting to a specific remote module 2-241
access-group
displaying mac interface 2-344
show mode interface 2-245
access groups
IP 2-5
access lists
clearing an access template 2-26
defining ARP 2-10
displaying ARP information 2-246
See also ACLs, MAC ACLs, and VACLs
access maps
applying with VLAN filter 2-512
ACLs
access-group mode 2-5
determining ACL hardware programming 2-6
displaying mac access-group interface 2-344
using ACL naming conventions for MAC ACLs 2-165
action clause
specifying drop or forward action in a VACL 2-8
adjacency
debugging the adjacency table 2-43
disabling the debug facility 2-43
displaying IPC table entries 2-43
aggregate policer
displaying information 2-377
aging time
displaying MAC address aging time 2-347
MAC address table 2-168
alarms
displaying operational status 2-267
alternation
description 1-9
anchoring
description 1-10
ARP
access list, displaying detailed information 2-246
defining access-lists 2-10
ARP inspection
enforce certain types of checking 2-118
ARP packet
deny based on DHCP bindings 2-79
permit based on DHCP bindings 2-195
authentication
setting username 2-502
using an MD5-type encryption method 2-502
verifying MD5 signature 2-503
verifying the checksum for Flash memory 2-503
authorization state
enabling manual control 2-87
authorization state of a controlled port 2-87
automatic installation
displaying status 2-247
auto-negotiate interface speed
example 2-461
auto-QoS
configuring for VoIP 2-12
displaying configuration 2-248
B
baby giants
displaying the system MTU setting 2-402
setting the maximum Layer 2 payload size 2-487
BackboneFast
displaying debugging messages 2-68
displaying spanning tree status 2-393
enabling debugging 2-68
bindings
store for DHCP snooping 2-126
BOOT environment variable
displaying information 2-252
bootflash
displaying information 2-250
BPDUs
debugging spanning tree activities 2-67
bridge protocol data units
broadcast suppression level
C
Catalyst 4507R 2-205
power redundancy mode 2-207
CDP
configuring tunneling encapsulation rate 2-161
enabling protocol tunneling for 2-157
set drop threshold for 2-159
CEF
displaying next-hop information 2-308
displaying VLAN configuration information 2-308
cisco-desktop
macro apply 2-174
Cisco Express Forwarding
cisco-phone
macro apply 2-176
cisco-router
macro apply 2-178
cisco-switch
macro apply 2-180
clear commands
clearing Gigabit Ethernet interfaces 2-24
clearing IGMP group cache entries 2-31
clearing interface counters 2-21
clearing IP access lists 2-26, 2-27
clearing IP ARP inspection statistics VLAN 2-28
clearing IP DHCP snooping database 2-29
clearing IP DHCP snooping database statistics 2-30
clearing MFIB counters and routes 2-34
clearing MFIB fastdrop entries 2-35
clearing PAgP channel information 2-38
clearing QoS aggregate counters 2-40
clearing VLAN interfaces 2-25
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 2-45
condition vlan
debugging VLAN output 2-48
configuration, saving 1-11
configuring
root as secondary 2-445
configuring a SPAN session to monitor
limit SPAN source traffic 2-187
configuring forward delay 2-441
configuring root as primary 2-445
CoS
assigning to Layer 2 protocol packets 2-158
CoS QoS default
defining value on an interface 2-220
Cost of Service
counters
clearing interface counters 2-21
D
DAI
clear statistics 2-28
DBL
displaying qos dbl 2-378
enabling DBL globally on the switch 2-221
debug commands
debugging backup events 2-44
debugging DHCP snooping events 2-54
debugging DHCP snooping messages 2-55
debugging EtherChannel/PAgP/shim 2-50
debugging IPC activity 2-53
debugging IP DHCP snooping security messages 2-56
debugging NVRAM activities 2-59
debugging PAgP activities 2-60
debugging port manager activities 2-63
debugging software MAC filter updates 2-66
debugging spanning tree activities 2-67
debugging spanning tree backbonefast 2-68
debugging spanning tree UplinkFast 2-71
debugging supervisor redundancy 2-65
debugging VLAN manager activities 2-72
displaying monitor activity 2-58
displaying the adjacency table 2-43
enabling debug dot1x 2-49
enabling debugging messages for ISL VLAN IDs 2-74
enabling debugging messages for VTP 2-75
enabling debugging of UDLD activity 2-76
enabling switch shim debugging 2-69
enabling VLAN manager file system error tests 2-73
limiting debugging output for VLANs 2-48
limiting interface debugging output 2-45
limiting output for debugging standby state changes 2-46
shortcut to the debug condition interface 2-52
debugging
activity monitoring 2-58
DHCP snooping events 2-54
DHCP snooping packets 2-55
IPC activities 2-53
IP DHCP snooping security packets 2-56
NVRAM activities 2-59
PAgP activities 2-60
PAgP shim 2-50
PM activities 2-63
SMF address insertions and deletions 2-66
spanning tree BackboneFast events 2-68
spanning tree switch shim 2-69
spanning tree UplinkFast events 2-71
VLAN manager activities 2-72
VLAN manager IOS file system error tests 2-73
VTP protocol debug messages 2-75
debug spanning tree switch 2-69
debug sw-vlan vtp 2-75
default CoS value 2-220
default form of a command, using 1-6
defining egress DSCP-to-CoS mapping 2-225
DHCP
clearing database statistics 2-30
DHCP bindings
configuring bindings 2-125
deny ARP packet based on matches 2-79
permit ARP packet based on matches 2-195
DHCP snooping
clearing database 2-29
displaying 2-309
displaying binding table 2-310
displaying status of DHCP database 2-313
displaying status of error detection 2-270
enabling DHCP globally 2-124
enabling IP source guard 2-155
enabling on a VLAN 2-131
enabling option 82 2-128
enabling rate limiting on an interface 2-129
enabling trust on an interface 2-130
establishing binding configuration 2-125
renew binding database 2-237
store generated bindings 2-126
diagnostic test
displaying attributes 2-254
display module-based results 2-256
displaying error disable recovery 2-271
displaying inline power status 2-372
displaying monitoring activity 2-58
displaying SEEPROM information
GBIC 2-278
displaying SPAN session information 2-401, 2-463
document conventions xvi
document organization xv
DOS attack
protecting system's resources 2-113
drop threshold, Layer 2 protocol tunneling 2-159
DSCP rewrite for IP packets
enable 2-228
dual-capable port
selecting a connector 2-184
duplex mode
configuring autonegotiation on an interface 2-94
configuring full duplex on an interface 2-94
configuring half duplex on an interface 2-94
dynamic ARP inspection
preventing 2-113
Dynamic Buffer Limiting
Dynamic Host Configuration Protocol
E
EAP
restarting authentication process 2-85
enabling
debugging for UDLD 2-76
voice VLANs 2-465
environmental
alarms 2-267
displaying information 2-267
status 2-267
temperature 2-267
error disable detection
enabling error disable detection 2-96
error-disabled state
displaying 2-294
error disable recovery
configuring recovery mechanism variables 2-98
displaying recovery timer information 2-271
enabling ARP inspection timeout 2-98
specifying recovery cause 2-98
EtherChannel
assigning interfaces to EtherChannel groups 2-16
debugging EtherChannel 2-50
debugging PAgP shim 2-50
debugging spanning tree activities 2-67
displaying information for a channel 2-272
removing interfaces from EtherChannel groups 2-16
EtherChannel guard
detecting STP misconfiguration 2-432
Explicit Host Tracking
clearing the database 2-33
displaying host membership 2-321
enabling per-VLAN 2-142
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 2-267
Flash memory file system
displaying file system information 2-250
verifying checksum 2-503
flow control
configuring a gigabit interface for pause frames 2-101
displaying per-interface statistics for flow control 2-276
G
GBIC
displaying SEEPROM information 2-278
Gigabit Ethernet interface
clearing the hardware logic 2-24
global configuration mode
using 1-5
H
hardware module
resetting a module by toggling the power 2-104
host membership on an interface
displaying information 2-321
hot standby protocol
debugging 2-46
disabling debugging 2-46
limiting output 2-46
I
IDPROMs
displaying SEEPROM information
chassis 2-278
clock module 2-278
fan trays 2-278
module 2-278
mux buffer 2-278
power supplies 2-278
supervisor engine 2-278
ifIndex persistence
clearing SNMP ifIndex commands 2-421
compress SNMP ifIndex table format 2-426
disabling globally 2-425
disabling on an interface 2-422
enabling globally 2-425
enabling on an interface 2-422
IGMP
applying filters for host joining on Layer 2 interfaces 2-133
clearing IGMP group cache entries 2-31
configuring frequency for IGMP host-query messages 2-136
creating an IGMP profile 2-135
displaying IGMP interface configuration information 2-315
displaying profiles 2-316
setting maximum group numbers 2-134
IGMP profiles
displaying 2-316
IGMP snooping
clearing the EHT database 2-33
configuring a Layer 2 interface as a group member 2-146
configuring a Layer 2 interface as a multicast router 2-144
configuring a static VLAN interface 2-146
displaying host membership 2-321
displaying multicast information 2-323
displaying VLAN information 2-317, 2-324
enabling 2-137
enabling immediate-leave processing 2-143
enabling on a VLAN 2-141
enabling per-VLAN Explicit Host Tracking 2-142
informs
enabling 2-423
inline power
displaying inline power status 2-372
inspection log
clearing log buffer 2-27
interface
displaying suppressed multicast bytes 2-288
interface capabilities
displaying 2-285
interface configuration mode
summary 1-5
interface link
display cable disconnect time 2-291
interfaces
configuring dot1q tunnel ports 2-470
creating an interface-range macro 2-78
debugging output of interface related activities 2-45
displaying description 2-290
displaying error-disabled state 2-294
displaying information when tunneling is enabled 2-338
displaying status 2-290
displaying traffic for a specific interface 2-283
executing a command on multiple ports in a range 2-108
setting a CoS value for Layer 2 packets 2-158
setting drop threshold for Layer 2 packets 2-159
setting the interface type 2-470
interface speed
configuring interface speed 2-459
interface transceiver
displaying diagnostic data 2-297
internal VLAN allocation
configuring 2-513
default setting 2-513
displaying allocation information 2-412
Internet Group Management Protocol
IP ARP
applying ARP ACL to VLAN 2-111
clearing inspection statistics 2-28
clearing status of log buffer 2-27
controlling packet logging 2-121
enabling dynamic inspection 2-120
limit rate of incoming requests 2-113
set per-port config trust state 2-117
showing status of dynamic ARP inspection 2-304
showing status of log buffer 2-307
IPC
debugging IPC activities 2-53
IP DHCP Snooping
IP header validation
disabling 2-154
enabling 2-154
IP multicast
displaying multicast routing table information 2-328
IP packets
enable DSCP rewrite 2-228
IP phone and standard desktop
enabling Cisco-recommended features 2-176
IP source binding
adding or deleting 2-151
displaying bindingstagging 2-333
IP source guard
debugging messages 2-56
displaying configuration and filters 2-334
enabling on DHCP snooping 2-155
J
Jumbo frames
enabling jumbo frames 2-191
L
LACP
deselecting channeling protocol 2-18
enabling LACP on an interface 2-18
setting channeling protocol 2-18
Layer 2
displaying ACL configuration 2-344
Layer 2 interface type
specifying a nontrunking, nontagged single VLAN interface 2-470
specifying a trunking VLAN interface 2-470
Layer 2 protocol ports
displaying 2-338
Layer 2 protocol tunneling error recovery 2-161
Layer 2 switching
enabling voice VLANs 2-465
modifying switching characteristics 2-465
Layer 2 traceroute
IP addresses 2-491
Layer 3 switching
displaying port status 2-295
displaying status of native VLAN tagging 2-295
log buffer
show status 2-307
logging
controlling IP ARP packets 2-121
M
MAC Access Control Lists
MAC ACLs
defining extended MAC access list 2-165
displaying MAC ACL information 2-409
naming an ACL 2-165
MAC address filtering
configuring 2-172
disabling 2-172
enabling 2-172
MAC address table
adding static entries 2-182
clearing dynamic entries 2-37
configuring aging time 2-168
displaying dynamic table entry information 2-349
displaying entry count 2-348
displaying information 2-345
displaying interface-based information 2-351
displaying multicast information 2-353
displaying protocol-based information 2-355
displaying static table entry information 2-357
displaying the MAC address aging time 2-347
displaying VLAN-based information 2-359
learning in the protocol buckets 2-169
removing static entries 2-182
MAC address tables
adding static entries 2-172
deleting secure or specific addresses 2-39
disabling IGMP snooping on static MAC addresses 2-172
removing static entries 2-172
mac-address-table static 2-172
MAC address unicast filtering
dropping unicast traffic 2-172
macro keywords
help strings 2-2
mapping secondary VLANs to MST instance 2-212
mapping VLAN(s) to an MST instance 2-105
match subcommand
accessing 2-19
maximum transmission unit (MTU)
displaying the system MTU setting 2-402
setting the maximum Layer 2 payload size 2-487
MD5
verifying MD5 signature 2-503
message digest 5
MFIB
clearing ip mfib counters 2-34
clearing ip mfib fastdrop 2-35
displaying all active MFIB routes 2-325
displaying MFIB fastdrop table entries 2-327
enabling IP MFIB fastdrops 2-148
modes
access-group 2-5
show access-group interface 2-245
switching between PVST+, MST, and Rapid PVST 2-437
module password clearing 2-23
module reset
resetting a module by toggling the power 2-104
--More-- prompt
filter 1-6
search 1-7
MST
designating the primary and secondary root 2-445
displaying MST protocol information 2-398
displaying region configuration information 2-398
displaying spanning tree information 2-398
entering MST configuration submode 2-439
setting configuration revision number 2-239
setting path cost and port priority for instances 2-438
setting the forward delay timer for all instances 2-441
setting the hello-time delay timer for all instances 2-442
setting the max-age timer for all instances 2-443
setting the MST region name 2-192
specifying the maximum number of hops 2-444
switching between PVST+ and Rapid PVST 2-437
using the MST configuration submode revision command 2-239
using the submode name command 2-192
MTU
displaying global MTU settings 2-402
multicast
enabling storm control 2-464
multicast/unicast packets
prevent forwarding 2-469
Multicast Forwarding Information Base
multiple-character patterns 1-8
multiple hosts on authorized port 2-86
Multiple Spanning Tree
N
native VLAN
controlling tagging of traffic 2-483
displaying ports eligible for native tagging 2-411
displaying ports eligible for tagging 2-411
enabling tagging on 802.1Q trunk ports 2-511
specifing the tagging of traffic 2-484
NetFlow
enabling NetFlow statistics 2-149
including infer fields in routing statistics 2-149
next-hop
displaying CEF VLAN information 2-308
no form of a command, using 1-6
NVRAM
debugging NVRAM activities 2-59
O
output
pattern searches 1-7
P
packet forwarding
prevent unknown packets 2-469
packet memory failure
direct switch action upon detection 2-81
packet memory test
bootup, displaying results 2-260
ongoing, displaying results 2-262
PACL
access-group mode 2-5
paging prompt
PAgP
clearing port channel information 2-38
debugging PAgP activity 2-60
deselecting channeling protocol 2-18
displaying port channel information 2-365
hot standby mode
returning to defaults 2-194
selecting ports 2-194
input interface of incoming packets
learning 2-193
returning to defaults 2-193
setting channeling protocol 2-18
parentheses 1-10
password
clearing on an intelligent line module 2-23
establishing enhanced password security 2-502
setting username 2-502
PBR
PM activities
debugging 2-63
disabling debugging 2-63
Policy Based Routing
port, dual-capable
selecting the connector 2-184
Port Aggregation Protocol
port-based authentication
displaying debug messages 2-49
displaying statistics and status 2-264
enabling 802.1X 2-87
manual control of authorization state 2-87
multiple hosts on authorized port 2-86
periodic re-authentication
enabling 2-90
re-authenticating 802.1X-enabled ports 2-89
switch-to-client frame-retransmission number 2-85
port channel
accessing 2-107
creating 2-107
displaying information 2-365
load distribution method
resetting to defaults 2-199
setting 2-199
port range
executing 2-108
port security
debugging ports security 2-64
deleting secure or specific addresses 2-39
enabling 2-472
filter source IP and MAC addresses 2-155
setting action upon security violation 2-472
setting the rate limit for bad packets 2-472
sticky port 2-472
Port Trust Device
displaying 2-379
power status
displaying inline power 2-372
displaying power status 2-372
power supply
configuring combined and redundant power on the Catalyst 4507R 2-205
configuring inline power 2-202
configuring power consumption 2-204
configuring power redundancy on the Catalyst 4507R 2-207
displaying the SEEPROM 2-278
setting inline power state 2-201
Private VLAN
privileged EXEC mode, summary 1-5
prompts
system 1-5
protocol tunneling
configuring encapsulation rate 2-161
disabling 2-157
displaying port information 2-338
enabling 2-157
setting a CoS value for Layer 2 packets 2-158
setting a drop threshold for Layer 2 packets 2-159
PVLANs
configuring isolated, primary, and community PVLANs 2-208
controlling tagging of native VLAN traffic 2-483
disabling sticky-ARP 2-152
displaying map information for VLAN SVIs 2-293
displaying PVLAN information 2-414
enabling interface configuration mode 2-470
enabling sticky-ARP 2-152
mapping VLANs to the same SVI 2-210
specifying host ports 2-470
specifying promiscuous ports 2-470
PVST+
switching between PVST and MST 2-437
Q
QoS
account Layer 2 encapsulation 2-215
attaching a policy-map to an interface 2-240
automatic configuration 2-12
clearing aggregate counters 2-40
configuring a QoS policy map 2-197
configuring auto 2-12
defining a named aggregate policer 2-217
defining default CoS value 2-220
defining ingress CoS-to-DSCP mapping 2-224
displaying aggregate policer information 2-377
displaying auto configuration 2-248
displaying class maps information 2-253
displaying configuration information 2-248
displaying configurations of policies 2-368
displaying policy map information 2-367
displaying QoS information 2-376
displaying QoS map information 2-380
enabling global configuration mode 2-213
enabling per-VLAN QoS for a Layer 2 interface 2-231
enabling QoS on an interface 2-214
mapping DSCP values to transmit queues 2-225
mapping egress DSCP-to-CoS 2-225
mapping the DSCP-to-CoS value 2-225
setting the mapping of policed DSCP values 2-227
setting the trust state 2-229
QoS CoS
configuring for tunneled Layer 2 protocol packets 2-158
defining default CoS value 2-220
qos dbl 2-221
question command 1-1
queueing information
displaying 2-379
R
Rapid PVST
switching between PVST and MST 2-437
re-authenticating 802.1X-enabled ports 2-89
re-authentication
periodic 2-90
reboots
restoring bindings across 2-125
redundancy
accessing the main CPU 2-232
changing from active to standby supervisor engine 2-233
displaying information 2-382
displaying redundancy facility information 2-382
displaying RF client list 2-382
displaying RF operational counters 2-382
displaying RF states 2-382
enabling automatic synchronization 2-15
forcing switchover to standby supervisor engine 2-233
set the mode 2-185
synchronizing the route processor configurations 2-182
related documentation xv
remote SPAN
renew commands
ip dhcp snooping database 2-237
resetting PVLAN trunk
setting switchport to trunk 2-470
rj45 connector, selecting the connector 2-184
ROM monitor mode
summary 1-6
root guard
displaying root inconsistency status 2-393
Route Processor Redundancy
RPR
set the redundancy mode 2-185
RSPAN
converting VLAN to RSPAN VLAN 2-236
displaying list 2-416
S
saving configuration changes 1-11
secure ports, limitations 2-473
set the redundancy mode 2-185
sfp connector, selecting the connector 2-184
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 2-389
slot0
displaying information about the system 2-391
SMF
debugging address insertions and deletions 2-66
SNMP
debugging spanning tree activities 2-67
ifIndex persistence
clearing SNMP ifIndex commands 2-421
compress SNMP ifIndex table format 2-426
disabling globally 2-425
disabling on an interface 2-422
enabling globally 2-425
enabling on an interface 2-422
informs
disabling 2-423
enabling 2-423
traps
configuring to send when storm occurs 2-462
disabling 2-423
enabling 2-423
software MAC filter
SPAN commands
configuring a SPAN session to monitor 2-187
displaying SPAN session information 2-401, 2-463
SPAN enhancements
displaying status 2-363
Spanning Tree Protocol
SPAN session
displaying session information 2-363
filter ACLs 2-187
specify encap type 2-187
turn off host learning based on ingress packets 2-187
special characters
anchoring, table 1-10
SSO 2-185
standard desktop
enabling Cisco-recommended features 2-174
standard desktop and Cisco IP phone
enabling Cisco-recommended features 2-176
sticky-ARP
disabling on PVLANs 2-152
enabling on PVLANs 2-152
sticky port
deleting 2-39
enabling security 2-472
storm control
configuring for action when storm occurs 2-462
disabling suppression mode 2-270
displaying settings 2-400
enabling 2-462
enabling broadcast 2-462, 2-464
enabling multicast 2-462, 2-464
enabling suppression mode 2-270
enabling timer to recover from error disable 2-98
multicast, enabling 2-464
setting high and low levels 2-462
setting suppression level 2-270
STP
configuring link type for a port 2-435
configuring tunneling encapsulation rate 2-161
debugging all activities 2-67
debugging spanning tree activities 2-67
debugging spanning tree BackboneFast events 2-68
debugging spanning tree UplinkFast 2-71
detecting misconfiguration 2-432
displaying active interfaces only 2-393
displaying BackboneFast status 2-393
displaying bridge status and configuration 2-393
displaying default path cost method 2-393
displaying spanning tree debug messages 2-67
displaying status information 2-393
displaying status per VLAN 2-393
displaying summary of interface information 2-393
displaying UplinkFast status 2-393
enabling BPDU filtering by default on all PortFast ports 2-450
enabling BPDU filtering on an interface 2-428
enabling BPDU guard by default on all PortFast ports 2-452
enabling BPDU guard on an interface 2-430
enabling extended system ID 2-433
enabling loop guard as a default on all ports 2-436
enabling PortFast by default on all access ports 2-453
enabling PortFast mode 2-448
enabling protocol tunneling for 2-157
enabling root guard 2-434
enabling spanning tree BackboneFast 2-427
enabling spanning tree on a per VLAN basis 2-457
enabling spanning tree UplinkFast 2-455
setting an interface priority 2-454
setting drop threshold for 2-159
setting pathcost 2-431
setting the default pathcost calculation method 2-447
subinterface configuration mode, summary 1-6
SVI
creating a Layer 3 interface on a VLAN 2-110
switchport 2-484
switchport interfaces
displaying status of Layer 3 port 2-295
displaying status of native VLAN tagging 2-295
switch shim
debugging 2-69
disabling debugging 2-69
switch to router connection
enabling Cisco-recommended features 2-178
switch to switch connection
enabling Cisco-recommended features 2-180
switch virtual interface
sw-vlan 2-72
system prompts 1-5
T
Tab key
command completion 1-1
tables
characters with special meaning 1-7
mac access-list extended subcommands 2-165
match syntax description 2-20
multipliers 1-9
relationship between duplex and speed commands 2-460
show vlan command output fields 2-415
show vtp command output fields 2-419
special characters 1-9
special characters used for anchoring 1-10
speed command options 2-460
TAC
displaying information useful to TAC 2-403
TCAM
debugging spanning tree activities 2-67
temperature readings
displaying information 2-267
timer information 2-271
traffic shaping
enable on an interface 2-242
traps, enabling 2-423
trunk encapsulation
setting format 2-484
trunk interfaces
displaying trunk interfaces information 2-302
trust state
setting 2-117
tunnel ports
displaying information about Layer 2 protocol 2-338
TX queues
allocating bandwidth 2-494
returning to default values 2-494
setting priority to high 2-494
specifying burst size 2-494
specifying traffic rate 2-494
U
UDLD
enabling by default on all fiber interfaces 2-496
enabling on an individual interface 2-498
preventing a fiber interface from being enabled 2-498
resetting all shutdown ports 2-500
setting the message timer 2-496
Unidirectional Link Detection
unknown multicast traffic, preventing 2-469
unknown unicast traffic, preventing 2-469
user EXEC mode, summary 1-5
username
setting password and privilege level 2-502
V
VACLs
access-group mode 2-5
applying VLAN access maps 2-512
displaying VLAN access map information 2-409
specifying an action in a VLAN access map 2-8
specifying the match clause for a VLAN access-map sequence 2-183
using a VLAN filter 2-512
VLAN
applying an ARP ACL 2-111
configuring 2-505
converting to RSPAN VLAN 2-236
displaying CEF information 2-308
displaying CEF next-hop information 2-308
displaying information on switch interfaces 2-317
displaying information on VLAN switch interfaces 2-324
displaying information sorted by group IP address 2-317
displaying IP address and version information 2-317
displaying Layer 2 VLAN information 2-406
displaying statistical information 2-361
displaying VLAN information 2-408
enabling dynamic ARP inspection 2-120
enabling Explicit Host Tracking 2-142
enabling guest per-port 2-82
entering VLAN configuration mode 2-509
native frames
enabling tagging on all 802.1Q trunk ports 2-511
pruning the list for VTP 2-484
setting the list of allowed 2-484
VLAN Access Control Lists
VLAN access map
VLAN database
resetting 2-238
VLAN debugging
limiting output 2-48
VLAN manager
debugging 2-72
disabling debugging 2-72
IOS file system error tests
debugging 2-73
disabling debugging 2-73
VLAN Query Protocol
VLAN query protocol (VQPC)
debugging 2-77
VLANs
clearing
counters 2-41
clearing hardware logic 2-25
configuring
internal allocation scheme 2-513
displaying
internal VLAN allocation information 2-412
RSPAN VLANs 2-416
entering VLAN configuration mode 2-509
VMPS
configuring servers 2-517
reconfirming dynamic VLAN assignments 2-515
voice VLANs
enabling 2-465
VoIP
configuring auto-QoS 2-12
VQP
per-server retry count 2-516
reconfirming dynamic VLAN assignments 2-515
VTP
configuring the administrative domain name 2-521
configuring the device in VTP client mode 2-520
configuring the device in VTP server mode 2-524
configuring the device in VTP transparent mode 2-525
configuring tunnel encapsulation rate 2-161
creating a VTP domain password 2-522
displaying domain information 2-418
displaying statistics information 2-418
enabling protocol tunneling for 2-157
enabling pruning in the VLAN database 2-523
enabling VTP version 2 mode 2-526
modifying the VTP configuration storage file name 2-519
set drop threshold for 2-159
VTP protocol code
activating debug messages 2-75
deactivating debug messages 2-75
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