Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(25)SG
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Table Of Contents

Symbols - Numerics - A - B - C - D - E - F - G - H - I - J - L - M - N - O - P - Q - R - S - T - U - V -



$ matches the end of a string 7

( ) in commands 10

* matches 0 or more sequences of a pattern 7

+ matches 1 or more sequences of a pattern 7

. matches any single character 7

? command 1

? matches 0 or 1 occurrence of a pattern 7

^ matches the beginning of a string 7

_ matches a comma (,), left brace ({), left parenthesis 7

" 10


10-Gigabit Ethernet uplink

selecting 114

showing the mode 320

802.1Q trunk ports and native VLANs 569

802.1Q tunnel ports

configuring 526

802.1S Multiple Spanning Tree

see MST


configuring for multiple hosts 88

configuring for single host 88

configuring multiple domains 88

802.1X Port Based Authentication

debugging 802.1X Port Based Authentication 50

displaying port based authentication 306

enabling accounting for authentication sessions 3

enabling authentication on the system 97

enabling guest VLAN 86

enabling guest VLAN supplicant 84, 87

enabling manual control of auth state 93

enabling periodic re-authentication of the client 96

initializing re-authentication of dot1x ports 95

initializing state machines 90

receive session termination message upon reboot 4

setting maximum number for EAP requests 92

setting the reauthentication timer 98


abbreviating commands

context-sensitive help 1

Access Gateway Module

connecting to a module 11

connecting to a remote module 265

connecting to a specific remote module 273


displaying mac interface 393

show mode interface 277

access groups

IP 5

access lists

clearing an access template 27

defining ARP 10

displaying ARP information 280

See also ACLs, MAC ACLs, and VACLs

access maps

applying with VLAN filter 570


access-group mode 5

determining ACL hardware programming 6

displaying mac access-group interface 393

using ACL naming conventions for MAC ACLs 187

action clause

specifying drop or forward action in a VACL 8

addresses, configuring a maximum 235


debugging the adjacency table 44

disabling the debug facility 44

displaying information about the adjacency table 278

displaying IPC table entries 44

aggregate policer

displaying information 432

aging time

displaying MAC address aging time 396

MAC address table 190


displaying operational status 309


description 9


description 10


access list, displaying detailed information 280

defining access-lists 10

ARP inspection

enforce certain types of checking 132

ARP packet

deny based on DHCP bindings 80

permit based on DHCP bindings 221


setting username 560

using an MD5-type encryption method 560

verifying MD5 signature 561

verifying the checksum for Flash memory 561

auth fail VLAN

enable on a port 85

set max number of attempts 84

authorization state

enabling manual control 93

authorization state of a controlled port 93

automatic installation

displaying status 281

auto-negotiate interface speed

example 517


configuring for VoIP 12

displaying configuration 282


baby giants

displaying the system MTU setting 457

setting the maximum Layer 2 payload size 543


displaying debugging messages 69

displaying spanning tree status 448

enabling debugging 69


store for DHCP snooping 141

BOOT environment variable

displaying information 286


displaying information 284


debugging spanning tree activities 68

bridge protocol data units


broadcast suppression level

configuring 518, 520

enabling 518, 520


cable diagnostics


displaying test results 287

testing conditions of copper cables 544

Catalyst 4507R 231

power redundancy mode 236


configuring tunneling encapsulation rate 177


neighbor information 289

enabling protocol tunneling for 173

set drop threshold for 175


displaying next-hop information 353

displaying VLAN configuration information 353


macro apply 196

Cisco Express Forwarding



macro apply 198


macro apply 200


macro apply 202

clear commands

clearing Gigabit Ethernet interfaces 25

clearing IGMP group cache entries 32

clearing interface counters 22

clearing IP access lists 27, 28

clearing IP ARP inspection statistics VLAN 29

clearing IP DHCP snooping database 30

clearing IP DHCP snooping database statistics 31

clearing MFIB counters and routes 35

clearing MFIB fastdrop entries 36

clearing PAgP channel information 39

clearing QoS aggregate counters 41

clearing VLAN interfaces 26

CLI string search

anchoring 10

expressions 7

filtering 6

multiple-character patterns 8

multipliers 9

parentheses for recall 10

searching outputs 6

single-character patterns 7

using 6

command modes

accessing privileged EXEC mode 4

exiting 4

understanding user EXEC and configuration modes 4

condition interface

debugging interface-related activities 46

condition vlan

debugging VLAN output 49

configuration, saving 11


root as secondary 501

configuring a SPAN session to monitor

limit SPAN source traffic 213

configuring forward delay 497

configuring root as primary 501


assigning to Layer 2 protocol packets 174

CoS QoS default

defining value on an interface 249

Cost of Service

See QoS CoS


clearing interface counters 22



clear statistics 29


displaying qos dbl 433

enabling DBL globally on the switch 250

debug commands

debugging backup events 45

debugging DHCP snooping events 55

debugging DHCP snooping messages 56

debugging EtherChannel/PAgP/shim 51

debugging IPC activity 54

debugging IP DHCP snooping security messages 57

debugging NVRAM activities 60

debugging PAgP activities 61

debugging port manager activities 64

debugging software MAC filter updates 67

debugging spanning tree activities 68

debugging spanning tree backbonefast 69

debugging spanning tree UplinkFast 72

debugging supervisor redundancy 66

debugging VLAN manager activities 73

displaying monitor activity 59

displaying the adjacency table 44

enabling debug dot1x 50

enabling debugging messages for ISL VLAN IDs 75

enabling debugging messages for VTP 76

enabling debugging of UDLD activity 77

enabling switch shim debugging 70

enabling VLAN manager file system error tests 74

limiting debugging output for VLANs 49

limiting interface debugging output 46

limiting output for debugging standby state changes 47

shortcut to the debug condition interface 53


activity monitoring 59

DHCP snooping events 55

DHCP snooping packets 56

IPC activities 54

IP DHCP snooping security packets 57

NVRAM activities 60

PAgP activities 61

PAgP shim 51

PM activities 64

SMF address insertions and deletions 67

spanning tree BackboneFast events 69

spanning tree switch shim 70

spanning tree UplinkFast events 72

VLAN manager activities 73

VLAN manager IOS file system error tests 74

VTP protocol debug messages 76

debug spanning tree switch 70

debug sw-vlan vtp 76

default CoS value 249

default form of a command, using 6

defining egress DSCP-to-CoS mapping 255


clearing database statistics 31

DHCP bindings

configuring bindings 140

deny ARP packet based on matches 80

permit ARP packet based on matches 221

DHCP snooping

clearing database 30

displaying binding table 355

displaying configuration information 354

displaying status of DHCP database 358

displaying status of error detection 312

enabling DHCP globally 139

enabling IP source guard 171

enabling on a VLAN 147

enabling option 82 143, 144

enabling rate limiting on an interface 145

enabling trust on an interface 146

establishing binding configuration 140

renew binding database 267

store generated bindings 141

diagnostic test

bootup packet memory 300

displaying attributes 294

display module-based results 296

running 83

show results for TDR 287

testing conditions of copper cables 544

displaying error disable recovery 313

displaying inline power status 424

displaying monitoring activity 59

displaying SEEPROM information

GBIC 321

displaying SPAN session information 456, 519

document conventions 16

document organization 15

DOS attack

protecting system's resources 127

drop threshold, Layer 2 protocol tunneling 175

DSCP rewrite for IP packets

enable 258

dual-capable port

selecting a connector 210

duplex mode

configuring autonegotiation on an interface 100

configuring full duplex on an interface 100

configuring half duplex on an interface 100

dynamic ARP inspection

preventing 127

Dynamic Buffer Limiting


Dynamic Host Configuration Protocol




restarting authentication process 92


debugging for UDLD 77

voice VLANs 521


alarms 309

displaying information 309

status 309

temperature 309

erase a file 102

error disable detection

enabling error disable detection 105

error-disabled state

displaying 339

error disable recovery

configuring recovery mechanism variables 107

displaying recovery timer information 313

enabling ARP inspection timeout 107

specifying recovery cause 107


assigning interfaces to EtherChannel groups 16

debugging EtherChannel 51

debugging PAgP shim 51

debugging spanning tree activities 68

displaying information for a channel 314

removing interfaces from EtherChannel groups 16

EtherChannel guard

detecting STP misconfiguration 488

Explicit Host Tracking

clearing the database 34

enabling per-VLAN 158


matching multiple expression occurrences 9

multiple-character patterns 8

multiplying pattern occurrence 10

single-character patterns 7

Extensible Authentication Protocol



field replaceable unit (FRU)

displaying status information 309

Flash memory file system

displaying file system information 284

verifying checksum 561

flow control

configuring a gigabit interface for pause frames 110

displaying per-interface statistics for flow control 318



displaying SEEPROM information 321

Gigabit Ethernet interface

clearing the hardware logic 25

Gigabit Ethernet uplink

selecting 114

showing the mode 320

global configuration mode

using 5


hardware module

resetting a module by toggling the power 113

hardware uplink

selecting the mode 114

showing the mode 320

helper addresses, IP 372

hot standby protocol

debugging 47

disabling debugging 47

limiting output 47



displaying SEEPROM information

chassis 321

clock module 321

fan trays 321

module 321

mux buffer 321

power supplies 321

supervisor engine 321

ifIndex persistence

clearing SNMP ifIndex commands 477

compress SNMP ifIndex table format 482

disabling globally 481

disabling on an interface 478

enabling globally 481

enabling on an interface 478


applying filters for host joining on Layer 2 interfaces 149

clearing IGMP group cache entries 32

configuring frequency for IGMP host-query messages 152

creating an IGMP profile 151

displaying IGMP interface configuration information 360

displaying profiles 362

setting maximum group numbers 150

IGMP profiles

displaying 362

IGMP snooping

clearing the EHT database 34

configuring a Layer 2 interface as a group member 162

configuring a Layer 2 interface as a multicast router 160

configuring a static VLAN interface 162

displaying multicast information 369

displaying VLAN information 363, 367, 370

enabling 153

enabling immediate-leave processing 159

enabling on a VLAN 157

enabling per-VLAN Explicit Host Tracking 158


enabling 479

inline power

displaying inline power status 424

inspection log

clearing log buffer 28


displaying suppressed multicast bytes 333

interface capabilities

displaying 330

interface configuration mode

summary 5

interface link

display cable disconnect time 336


configuring dot1q tunnel ports 526

creating an interface-range macro 79

debugging output of interface related activities 46

displaying description 335

displaying error-disabled state 339

displaying information when tunneling is enabled 387

displaying status 335

displaying traffic for a specific interface 327

entering interface configuration mode 119

executing a command on multiple ports in a range 122

selecting an interface to configure 119

setting a CoS value for Layer 2 packets 174

setting drop threshold for Layer 2 packets 175

setting the interface type 526

interface speed

configuring interface speed 515

interface transceiver

displaying diagnostic data 342

internal VLAN allocation

configuring 571

default setting 571

displaying allocation information 468

Internet Group Management Protocol



applying ARP ACL to VLAN 125

clearing inspection statistics 29

clearing status of log buffer 28

controlling packet logging 135

enabling dynamic inspection 134

limit rate of incoming requests 127

set per-port config trust state 131

showing status of dynamic ARP inspection 349

showing status of log buffer 352


debugging IPC activities 54

IP DHCP Snooping

See DHCP snooping

IP header validation

disabling 170

enabling 170

IP interfaces

displaying usability status 371

IP multicast

displaying multicast routing table information 377

IP packets

enable DSCP rewrite 258

IP phone and standard desktop

enabling Cisco-recommended features 198

IP source binding

adding or deleting 167

displaying bindingstagging 382

IP source guard

debugging messages 57

displaying configuration and filters 383

enabling on DHCP snooping 171


Jumbo frames

enabling jumbo frames 217



deselecting channeling protocol 18

enabling LACP on an interface 18

setting channeling protocol 18

Layer 2

displaying ACL configuration 393

Layer 2 interface type

specifying a nontrunking, nontagged single VLAN interface 526

specifying a trunking VLAN interface 526

Layer 2 protocol ports

displaying 387

Layer 2 protocol tunneling error recovery 177

Layer 2 switching

enabling voice VLANs 521

modifying switching characteristics 521

Layer 2 traceroute

IP addresses 549

Layer 3 switching

displaying information about an adjacency table 278

displaying port status 340

displaying status of native VLAN tagging 340

link-status event messages


globally 181, 184

on an interface 182, 185


globally 181, 184

on an interface 182, 185

log buffer

show status 352


controlling IP ARP packets 135


MAC Access Control Lists



defining extended MAC access list 187

displaying MAC ACL information 465

naming an ACL 187

MAC address filtering

configuring 194

disabling 194

enabling 194

MAC address table

adding static entries 204

clearing dynamic entries 38

configuring aging time 190

displaying dynamic table entry information 398

displaying entry count 397

displaying information 394

displaying interface-based information 400

displaying multicast information 402

displaying protocol-based information 404

displaying static table entry information 406

displaying the MAC address aging time 396

displaying VLAN-based information 408

learning in the protocol buckets 191

removing static entries 204

MAC address tables

adding static entries 194

deleting secure or specific addresses 40

disabling IGMP snooping on static MAC addresses 194

removing static entries 194

mac-address-table static 194

MAC address unicast filtering

dropping unicast traffic 194

macro keywords

help strings 2

mapping secondary VLANs to MST instance 241

mapping VLAN(s) to an MST instance 116

match subcommand

accessing 20

maximum transmission unit (MTU)

displaying the system MTU setting 457

setting the maximum Layer 2 payload size 543


verifying MD5 signature 561

message digest 5

See MD5


clearing ip mfib counters 35

clearing ip mfib fastdrop 36

displaying all active MFIB routes 374

displaying MFIB fastdrop table entries 376

enabling IP MFIB fastdrops 164


access-group 5

show access-group interface 277

switching between PVST+, MST, and Rapid PVST 493

See also command modes

module password clearing 24

module reset

resetting a module by toggling the power 113

--More-- prompt

filter 6

search 7


designating the primary and secondary root 501

displaying MST protocol information 452

displaying region configuration information 452

displaying spanning tree information 452

entering MST configuration submode 495

setting configuration revision number 269

setting path cost and port priority for instances 494

setting the forward delay timer for all instances 497

setting the hello-time delay timer for all instances 498

setting the max-age timer for all instances 499

setting the MST region name 218

specifying the maximum number of hops 500

switching between PVST+ and Rapid PVST 493

using the MST configuration submode revision command 269

using the submode name command 218


displaying global MTU settings 457


enabling storm control 520

multicast/unicast packets

prevent forwarding 525

Multicast Forwarding Information Base


multiple-character patterns 8

Multiple Spanning Tree



native VLAN

controlling tagging of traffic 539

displaying ports eligible for native tagging 467

displaying ports eligible for tagging 467

enabling tagging on 802.1Q trunk ports 569

specifing the tagging of traffic 540


enabling NetFlow statistics 165

including infer fields in routing statistics 165


displaying CEF VLAN information 353

no form of a command, using 6


debugging NVRAM activities 60



pattern searches 7


packet forwarding

prevent unknown packets 525

packet memory failure

direct switch action upon detection 82

packet memory test

bootup, displaying results 300, 302

ongoing, displaying results 304


access-group mode 5

paging prompt

see --More-- prompt


clearing port channel information 39

debugging PAgP activity 61

deselecting channeling protocol 18

displaying port channel information 414

hot standby mode

returning to defaults 220

selecting ports 220

input interface of incoming packets

learning 219

returning to defaults 219

setting channeling protocol 18

parentheses 10


clearing on an intelligent line module 24

establishing enhanced password security 560

setting username 560


displaying route maps 16

redistributing route maps 16

PM activities

debugging 64

disabling debugging 64

Policy Based Routing


port, dual-capable

selecting the connector 210

Port Aggregation Protocol

See PAgP

port-based authentication

displaying debug messages 50

displaying statistics and status 306

enabling 802.1X 93

host modes 88

manual control of authorization state 93

periodic re-authentication

enabling 96

re-authenticating 802.1X-enabled ports 95

switch-to-client frame-retransmission number 92

port channel

accessing 121

creating 121

displaying information 414

load distribution method

resetting to defaults 225

setting 225

port range

executing 122

port security

debugging ports security 65

deleting secure or specific addresses 40

displaying settings for an interface or switch 421

enabling 528

filter source IP and MAC addresses 171

setting action upon security violation 528

setting the rate limit for bad packets 528

sticky port 528

Port Trust Device

displaying 434

power status

displaying inline power 424

displaying power status 424

power supply

configuring combined and redundant power on the Catalyst 4507R 231

configuring inline power 228

configuring power consumption 230

configuring power redundancy on the Catalyst 4507R 236

displaying the SEEPROM 321

setting inline power state 227

Private VLAN


privileged EXEC mode, summary 5


system 5

protocol tunneling

configuring encapsulation rate 177

disabling 173

displaying port information 387

enabling 173

setting a CoS value for Layer 2 packets 174

setting a drop threshold for Layer 2 packets 175


configuring isolated, primary, and community PVLANs 237

controlling tagging of native VLAN traffic 539

disabling sticky-ARP 168

displaying map information for VLAN SVIs 338

displaying PVLAN information 470

enabling interface configuration mode 526

enabling sticky-ARP 168

mapping VLANs to the same SVI 239

specifying host ports 526

specifying promiscuous ports 526


switching between PVST and MST 493



account Layer 2 encapsulation 244

attaching a policy-map to an interface 270

automatic configuration 12

clearing aggregate counters 41

configuring a QoS policy map 223

configuring auto 12

defining a named aggregate policer 246

defining default CoS value 249

defining ingress CoS-to-DSCP mapping 253

displaying aggregate policer information 432

displaying auto configuration 282

displaying class maps information 292

displaying configuration information 282

displaying configurations of policies 417

displaying policy map information 416, 420

displaying QoS information 431

displaying QoS map information 435

enabling global configuration mode 242

enabling per-VLAN QoS for a Layer 2 interface 261

enabling QoS on an interface 243

mapping DSCP values to transmit queues 255

mapping egress DSCP-to-CoS 255

mapping the DSCP-to-CoS value 255

setting the mapping of policed DSCP values 257

setting the trust state 259

specifying flow-based match criteria 206


configuring for tunneled Layer 2 protocol packets 174

defining default CoS value 249

qos dbl 250

question command 1

queueing information

displaying 434


Rapid PVST

switching between PVST and MST 493

re-authenticating 802.1X-enabled ports 95


periodic 96

set the time 98


restoring bindings across 140


accessing the main CPU 262

changing from active to standby supervisor engine 263

displaying information 437

displaying redundancy facility information 437

displaying RF client list 437

displaying RF operational counters 437

displaying RF states 437

enabling automatic synchronization 15

forcing switchover to standby supervisor engine 263

set the mode 211

synchronizing the route processor configurations 204

related documentation 15

remote SPAN


renew commands

ip dhcp snooping database 267

resetting PVLAN trunk

setting switchport to trunk 526

rj45 connector, selecting the connector 210

ROM monitor mode

summary 6

Route Processor Redundancy

See redundancy


set the redundancy mode 211


converting VLAN to RSPAN VLAN 266

displaying list 472


saving configuration changes 11

secure address, configuring 233

secure ports, limitations 529

set the redundancy mode 211

sfp connector, selecting the connector 210

show commands

filtering parameters 7

searching and filtering 6

show platform commands 11

Simple Network Management Protocol


single-character patterns

special characters 7


displaying information on the standby supervisor 444


displaying information about the system 446


debugging address insertions and deletions 67


debugging spanning tree activities 68

ifIndex persistence

clearing SNMP ifIndex commands 477

compress SNMP ifIndex table format 482

disabling globally 481

disabling on an interface 478

enabling globally 481

enabling on an interface 478


disabling 479

enabling 479


configuring to send when storm occurs 518

disabling 479

enabling 479

software MAC filter


SPAN commands

configuring a SPAN session to monitor 213

displaying SPAN session information 456, 519

SPAN enhancements

displaying status 412

Spanning Tree Protocol


SPAN session

displaying session information 412

filter ACLs 213

specify encap type 213

turn off host learning based on ingress packets 213

special characters

anchoring, table 10

SSO 211

standard desktop

enabling Cisco-recommended features 196

standard desktop and Cisco IP phone

enabling Cisco-recommended features 198

sticky address, configuring 234


disabling on PVLANs 168

enabling on PVLANs 168

sticky port

deleting 40

enabling security 528

storm control

configuring for action when storm occurs 518

disabling suppression mode 312

displaying settings 455

enabling 518

enabling broadcast 518, 520

enabling multicast 518, 520

enabling suppression mode 312

enabling timer to recover from error disable 107

enabling unicast 518, 520

multicast, enabling 520

setting high and low levels 518

setting suppression level 312


configuring link type for a port 491

configuring tunneling encapsulation rate 177

debugging all activities 68

debugging spanning tree activities 68

debugging spanning tree BackboneFast events 69

debugging spanning tree UplinkFast 72

detecting misconfiguration 488

displaying active interfaces only 448

displaying BackboneFast status 448

displaying bridge status and configuration 448

displaying spanning tree debug messages 68

displaying summary of interface information 448

enabling BPDU filtering by default on all PortFast ports 506

enabling BPDU filtering on an interface 484

enabling BPDU guard by default on all PortFast ports 508

enabling BPDU guard on an interface 486

enabling extended system ID 489

enabling loop guard as a default on all ports 492

enabling PortFast by default on all access ports 509

enabling PortFast mode 504

enabling protocol tunneling for 173

enabling root guard 490

enabling spanning tree BackboneFast 483

enabling spanning tree on a per VLAN basis 513

enabling spanning tree UplinkFast 511

setting an interface priority 510

setting drop threshold for 175

setting pathcost 487

setting the default pathcost calculation method 503

subinterface configuration mode, summary 6


creating a Layer 3 interface on a VLAN 124

switchport 540

switchport interfaces

displaying status of Layer 3 port 340

displaying status of native VLAN tagging 340

switch shim

debugging 70

disabling debugging 70

switch to router connection

enabling Cisco-recommended features 200

switch to switch connection

enabling Cisco-recommended features 202

switch virtual interface


sw-vlan 73

system prompts 5


Tab key

command completion 1


characters with special meaning 7

mac access-list extended subcommands 187

match syntax description 21

multipliers 9

relationship between duplex and speed commands 516

show cable-diagnostics tdr command output fields 288

show cdp neighbors detail field descriptions 291

show cdp neighbors field descriptions 290

show ip interface field descriptions 372

show vlan command output fields 471

show vtp command output fields 475

special characters 9

special characters used for anchoring 10

speed command options 206, 515

valid interface types 119


displaying information useful to TAC 458


debugging spanning tree activities 68


displaying cable diagnostic test results 287

test condition of copper cables 544

temperature readings

displaying information 309

timer information 313

traffic shaping

enable on an interface 274

traps, enabling 479

trunk encapsulation

setting format 540

trunk interfaces

displaying trunk interfaces information 347

trust state

setting 131

tunnel ports

displaying information about Layer 2 protocol 387

TX queues

allocating bandwidth 552

returning to default values 552

setting priority to high 552

specifying burst size 552

specifying traffic rate 552



displaying administrative and operational status 460

enabling by default on all fiber interfaces 554

enabling on an individual interface 556

preventing a fiber interface from being enabled 556

resetting all shutdown ports 558

setting the message timer 554

Unidirectional Link Detection


unknown multicast traffic, preventing 525

unknown unicast traffic, preventing 525

user EXEC mode, summary 5


setting password and privilege level 560



access-group mode 5

applying VLAN access maps 570

displaying VLAN access map information 465

specifying an action in a VLAN access map 8

specifying the match clause for a VLAN access-map sequence 205

using a VLAN filter 570


applying an ARP ACL 125

configuring 563

converting to RSPAN VLAN 266

displaying CEF information 353

displaying CEF next-hop information 353

displaying information on switch interfaces 363, 367

displaying information on VLAN switch interfaces 370

displaying information sorted by group IP address 363, 367

displaying IP address and version information 363, 367

displaying Layer 2 VLAN information 462

displaying statistical information 410

displaying VLAN information 464

enabling dynamic ARP inspection 134

enabling Explicit Host Tracking 158

enabling guest per-port 86

enabling guest VLAN supplicant 84, 87

entering VLAN configuration mode 567

native frames

enabling tagging on all 802.1Q trunk ports 569

pruning the list for VTP 540

setting the list of allowed 540

VLAN Access Control Lists


VLAN access map


VLAN database

resetting 268

VLAN debugging

limiting output 49

VLAN manager

debugging 73

disabling debugging 73

IOS file system error tests

debugging 74

disabling debugging 74

VLAN Query Protocol


VLAN query protocol (VQPC)

debugging 78



counters 42

clearing hardware logic 26


internal allocation scheme 571


internal VLAN allocation information 468


entering VLAN configuration mode 567


configuring servers 575

reconfirming dynamic VLAN assignments 573

voice VLANs

enabling 521


configuring auto-QoS 12


per-server retry count 574

reconfirming dynamic VLAN assignments 573


configuring the administrative domain name 579

configuring the device in VTP client mode 578

configuring the device in VTP server mode 582

configuring the device in VTP transparent mode 583

configuring tunnel encapsulation rate 177

creating a VTP domain password 580

displaying domain information 474

displaying statistics information 474

enabling protocol tunneling for 173

enabling pruning in the VLAN database 581

enabling VTP version 2 mode 584

modifying the VTP configuration storage file name 577

set drop threshold for 175

VTP protocol code

activating debug messages 76

deactivating debug messages 76