Catalyst 2950 and Catalyst 2955 Switch Command Reference, 12.1(19)EA1
Index

Table Of Contents

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

Index

A

aaa authentication command2-1

abort command2-524

access control entries

See ACEs

access control lists

See ACLs

access control parameters

See ACPs

access groups

IP2-124

MAC

applying ACL to interface2-180

displaying2-345

access-list (IP extended) command2-3

access-list (IP standard) command2-6

access-list configuration mode

deny2-83

entering2-126

permit2-225

access ports2-479

ACEs2-87, 2-229

ACLs

IP

applying to interface2-124

deny2-83

displaying2-258, 2-330

permit2-225

ACLs (continued)

MAC

applying to interface2-180

deny2-86

displaying2-258

permit2-228

ACPs, displaying2-354

aggregate-port learner2-222

alarm commandA-6

alarm facility fcs-hysteresis commandA-2

alarm facility power-supply commandA-3

alarm facility temperature commandA-4

alarm IDsA-7, A-11

alarm profile

attaching to a portA-8

creatingA-6

displayingA-12

alarm profile (global configuration) commandA-6

alarm profile (interface configuration) commandA-8

alarm profile configuration modeA-6

apply command2-524

archive download-sw command2-8

archive tar command2-10

archive upload-sw command2-13

audiencexv

authorization state of controlled port2-96

autonegotiation of duplex mode2-105

auto qos voip command2-15

B

BackboneFast, for STP2-421

boot boothlpr command2-19

boot buffersize command2-20

boot commandB-2

boot config-file command2-21

boot enable-break command2-22

boot helper command2-23

boot helper-config file command2-24

booting

Cisco IOS image2-27

interrupting2-22

manually2-25

booting, displaying environment variables2-262

boot loader

accessingB-1

booting

Cisco IOS imageB-2

helper image2-23

directories

creatingB-16

displaying a list ofB-7

removingB-20

displaying

available commandsB-12

memory heap utilizationB-14

versionB-27

environment variables

describedB-21

displaying settingsB-21

location ofB-23

settingB-21

unsettingB-25

bootloader (continued)

files

copyingB-5

deletingB-6

displaying a list ofB-7

displaying the contents ofB-3, B-17, B-24

renamingB-18

file system

formattingB-10

initializing FlashB-9

running a consistency checkB-11

loading helper imagesB-13

promptB-1

resetting the systemB-19

boot manual command2-25

boot private-config-file command2-26

boot system command2-27

BPDU filtering, for spanning tree2-422, 2-458

BPDU guard, for spanning tree2-424, 2-458

broadcast suppression level

configuring2-472

displaying2-388

broadcast traffic counters2-326

C

cat commandB-3

caution, descriptionxvi

channel-group command2-28

channel-protocol command2-31

class command2-33

class-map command2-35

class maps

creating2-35

defining the match criteria2-199

displaying2-264

class of service

See CoS

clear controllers ethernet-controller command2-37

clear controllers lre command2-39

clear controllers lre link monitor command2-40

clear controllers lre log command2-41

clear interface command2-42

clear lacp command2-43

clear LRE configuration events2-41

clear LRE timer events2-41

clear mac address-table command2-45

clear pagp command2-47

clear port-security command2-48

clear setup express command2-50

clear spanning-tree counters command2-51

clear spanning-tree detected-protocols command2-52

clear vmps statistics command2-53

clear vtp counters command2-54

cluster commander-address command2-55

cluster discovery hop-count command2-57

cluster enable command2-58

cluster holdtime command2-59

cluster management-vlan command2-60

cluster member command2-61

cluster run command2-63

clusters

adding candidates2-61

binding to HSRP2-64

building manually2-61

communicating with members by using Telnet2-246

displaying

candidate switches2-268

member switches2-270

status2-266

heartbeat messages

duration after which switch declared down2-59

interval between2-66

hop-count limit for extended discovery2-57

clusters (continued)

HSRP standby groups2-64

redundancy2-64

SNMP trap2-412

cluster standby-group command2-64

cluster timer command2-66

command modes defined1-2

command switch

See clusters

configuration files

password recovery disable considerationsB-1

setting the NVRAM size for2-20

specifying the name2-21

configuration files, private2-26

configuring multiple interfaces2-120to 2-121

config-vlan mode

commands2-512

description1-4

entering2-511

summary1-2

controller longreachethernet command2-67

conventions

commandxvi

for examplesxvi

publicationxvi

textxvi

copy commandB-5

CoS

default value, assigning to incoming packets2-203

incoming value, overriding2-203

priority queue, assigning values to2-543

priority queue mapping, displaying2-409

WRR bandwidth allocation, displaying2-408

WRR weights, assigning to CoS priority queues2-541

CoS-to-DSCP map

default2-205

defining2-205

cpe duplex command2-68

CPE Ethernet ports, clearing2-37

cpe protected command2-70

cpe shutdown command2-72

cpe speed command2-74, 2-76

cpe type command2-78

cross-stack UplinkFast, for STP2-462

D

debug autoqos commandC-2

debug dot1x commandC-4

debug etherchannel commandC-5

debug lreC-6

debug pagp commandC-7

debug pm commandC-8

debug spanning-tree backbonefast commandC-12

debug spanning-tree bpdu commandC-13

debug spanning-tree bpdu-opt commandC-14

debug spanning-tree commandC-10

debug spanning-tree mstp commandC-15

debug spanning-tree switch commandC-17

debug spanning-tree uplinkfast commandC-19

debug switch dhcp commandC-20

debug sw-vlan commandC-21

debug sw-vlan ifs commandC-23

debug sw-vlan notification commandC-24

debug sw-vlan vtp commandC-25

debug udld commandC-27

defaultPort profileA-7, A-8

define interface-range command2-80

delete command2-82, B-6

delete LRE link history2-41

delete LRE link monitor data2-40

deny (access-list configuration) command2-83

deny (MAC access-list configuration) command2-86

DHCP, error recovery timer2-109

DHCP snooping

enabling on a VLAN2-134

enabling option 822-130

enabling rate limiting on an interface2-132

enabling trust on an interface2-133

dir commandB-7

documentation

feedbackxviii

obtaining

CD-ROMxviii

World Wide Webxviii

orderingxviii

relatedxvii

document conventionsxvi

domain name, VTP2-531, 2-537

dot1x default command2-89

dot1x guest-vlan command2-90

dot1x host-mode command2-91

dot1x initialize command2-93

dot1x max-req command2-94

dot1x multiple-hosts command2-95

dot1x port-control command2-96

dot1x re-authenticate command2-98

dot1x re-authentication command2-99

dot1x reauthentication command2-100

dot1x system-auth-control command2-102

DSCP-to-CoS map

default2-205

defining2-205

DTP2-480

DTP flap, error recovery timer2-109

duplex command2-105

dynamic-access ports, configuring2-475

Dynamic Host Configuration Protocol (DHCP)

See DHCP snooping

Dynamic Trunking Protocol

See DTP

E

EAP-request/identity frame

maximum number to send2-94

response time before retransmitting2-103

environmental alarms, displayingA-14

environment variables, displaying2-262

errdisable detect cause command2-107

errdisable recovery command2-109

EtherChannel

assigning Ethernet interface to channel group2-28

creating port-channel logical interface2-119

debug messages, displayingC-5to C-7

displaying2-311

LACP, modes2-28

load-distribution methods2-236

PAgP

aggregate-port learner2-222

clearing channel-group information2-43, 2-47

debug messages, displayingC-7

displaying2-339, 2-368

error recovery timer2-109

learn method2-222

modes2-28

priority of interface for transmitted traffic2-224

Ethernet controller, internal register display2-272

Ethernet link statistics2-37

Ethernet statistics, collecting2-250

examples, conventions forxvi

exit command2-524

expedite queue, QoS2-541

express setup-related commands2-50, 2-256, 2-381

extended discovery of candidate switches2-57

extended-range VLANs

and allowed VLAN list2-492

and pruning-eligible list2-492

configuring2-511

extended system ID for STP2-430

F

facility alarm relays, displayingA-18

facility alarm status, displayingA-19

fan information, displaying2-308

FCS bit error rate

displayingA-20

fluctuation thresholdA-2

settingA-9

FCS hysteresis thresholdA-2

fcs-threshold commandA-9

feedback to Cisco Systems, webxviii

file name, VTP2-531

files, deleting2-82

flash_init commandB-9

flowcontrol command2-111

flow-control packets

receiving2-111

sending2-111

format commandB-10

frame check sequence

See FCS

fsck commandB-11

G

global configuration mode1-2, 1-4

H

heartbeat messages

duration after which switch declared dead2-59

interval between2-66

help commandB-12

holdtime for clusters2-59

hop-count limit for clusters2-57

Hot Standby Router Protocol

See HSRP

HSRP

binding HSRP group to cluster2-64

standby group2-64

hw-module slot command2-114

I

IDS, using with SPAN and RSPAN2-212

IEEE 802.1X commands, authentication methods2-1

IGMP filters, applying2-135

IGMP groups

configuring throttling action2-137

IGMP groups, setting maximum2-137

IGMP profiles

creating2-139

displaying2-335

IGMP snooping

adding ports statically2-153

compatibility mode, displaying2-336

configuration, displaying2-336

enabling2-141

IGMP version, displaying2-336

Immediate-Leave processing2-150

MAC address tables2-350

multicast groups, displaying2-336

multicast router ports, displaying2-336

multicast routers2-151

per VLAN2-149

report suppression2-143

source-only-learning2-145

source-only-learning aging time2-147

images

See software images

Immediate-Leave feature, MVR2-216

Immediate-Leave processing2-150

interface command2-117

interface configuration mode1-2, 1-4

interface port-channel command2-119

interface range command2-120

interface-range macros2-80

interfaces

assigning Ethernet interface to channel group2-28

configuring2-105

configuring multiple2-120to 2-121

creating port-channel logical2-119

disabling2-410

restarting2-410

interleave command2-122

internal registers, displaying2-272

Intrusion Detection System

See IDS

invalid GBIC

error detection for2-107

error recovery timer2-109

ip access-group command2-124

ip access-list command2-126

ip address command2-128

ip addresses, setting2-128

IP DHCP Snooping

See DHCP snooping

ip dhcp snooping command2-129

ip dhcp snooping information option command2-130

ip dhcp snooping limit rate command2-132

ip dhcp snooping trust command2-133

ip dhcp snooping vlan command2-134

ip igmp filter command2-135

ip igmp max-groups command2-137

ip igmp profile command2-139

ip igmp snooping command2-141

ip igmp snooping report-suppression command2-143

ip igmp snooping source-only-learning command2-145

ip igmp snooping source-only-learning command age-timer2-147

ip igmp snooping vlan command2-149

ip igmp snooping vlan immediate-leave command2-150

ip igmp snooping vlan mrouter command2-151

ip igmp snooping vlan static command2-153

IP multicast addresses2-213

ip ssh command2-155

IPv41-1

IPv61-1

IP version 41-1

IP version 61-1

J

jumbo frames

displaying setting2-391

setting switch for2-497

L

LACP

See EtherChannel

lacp port-priority command2-157

lacp system-priority command2-158

Layer 2 traceroute

IP addresses2-502

MAC addresses2-499

line configuration mode1-3, 1-5

Link Aggregation Control Protocol

See EtherChannel

link flap

enable error detection for2-107

enable timer to recover from error state2-109

link statistics, clearing2-37

load_helper commandB-13

load-distribution methods for EtherChannel2-236

local duplex command2-164

local speed command2-165

logging lre command2-166

logical interface2-119

loopback, error recovery timer2-109

loop guard, for spanning tree2-432, 2-435

LRE controller, defined2-67

lre profile command2-168

lre rate selection command2-44

lre rate selection sequence command2-170

lre sequence command2-172

lre syslog command2-174

lre upbo command2-176

M

mac access-group command2-180

MAC access-list configuration mode

deny2-86

entering2-182

permit2-228

mac access-list extended command2-182

MAC ACLs

deny2-86

permit2-228

MAC addresses

and port security2-483

clearing notification global counters2-45

displaying

aging time2-347

dynamic2-347

multicast entries2-350

notification setting2-352

number of addresses2-347

per interface2-347

per VLAN2-347

secure2-374

static2-347

dynamic

aging time2-184

deleting2-45

displaying2-347

enabling MAC address notification2-186

secure

adding2-483

displaying2-374

MAC addresses (continued)

static

adding2-188

displaying2-347

dropping on an interface2-190

sticky

configuring manually2-483

enabling sticky learning2-483

learning dynamically2-483

mac address-table aging-time command2-184

mac address-table notification command2-186

mac address-table static command2-188

mac address-table static drop command2-190

MAC-named extended ACLs2-182

MAC notification feature

clearing global counters2-45

configuring2-186

enabling2-186

macro apply command2-192

macro description command2-194

macro name command2-195

macros

adding a description2-194

applying2-192

creating2-195

displaying2-370

tracing2-192

macros, interface range2-80

manual

audiencexv

purpose ofxv

maps, QoS

defining2-205

displaying2-358

margin command2-197

masks

See ACPs

match (class-map configuration) command2-199

maximum transmission unit

See MTU

media-type command2-201

member switches

See clusters

memory commandB-14

mkdir commandB-16

mls qos cos command2-203

mls qos map command2-205

mls qos trust command2-207

mode, MVR2-213

Mode button, and password recovery2-251

monitor session command2-210

more commandB-17

MSTP

displaying2-383

interoperability2-52

link type2-434

MST region

aborting changes2-439

applying changes2-439

configuration name2-439

configuration revision number2-439

current or pending display2-439

displaying2-383

MST configuration mode2-439

VLANs-to-instance mapping2-439

path cost2-441

protocol mode2-437

restart protocol migration process2-52

root port

loop guard2-432

preventing from becoming designated2-432

restricting which can be root2-432

root guard2-432

MSTP (continued)

root switch

affects of extended system ID2-430

hello-time2-444, 2-454

interval between BDPU messages2-446

interval between hello BPDU messages2-444, 2-454

max-age2-446

maximum hop count before discarding BPDU2-448

port priority for selection of2-450

primary or secondary2-454

switch priority2-452

state changes

blocking to forwarding state2-460

enabling BPDU filtering2-422, 2-458

enabling BPDU guard2-424, 2-458

enabling Port Fast2-458, 2-460

forward-delay time2-443

length of listening and learning states2-443

rapid transition to forwarding2-434

shutting down Port Fast-enabled ports2-458

state information display2-382

MTU

configuring size2-497

displaying global setting2-391

multicast groups

See IGMP snooping

multicast groups, MVR2-214

multicast router learning method2-151

multicast router ports, configuring2-151

multicast suppression level

configuring2-472

displaying2-388

enabling2-472

multicast traffic counters2-326

multicast VLAN, MVR2-214

multicast VLAN registration

See MVR

multiple hosts on authorized port2-91

Multiple Spanning Tree Protocol

See MSTP

MVR

configuring2-213

configuring interfaces2-218

displaying2-362

Immediate Leave feature2-216

receiver port2-218

source port2-218

mvr command2-213

mvr group command2-214

mvr immediate command2-216

mvr type command2-218

mvr vlan group command2-220

N

nonegotiate, speed2-469

normal-range VLANs2-511, 2-517

note, descriptionxvi

notifies commandA-6

no vlan command2-511, 2-521

O

option 82, DHCP snooping2-130

P

PAgP

See EtherChannel

pagp learn-method command2-222

pagp port-priority command2-224

password, VTP2-531, 2-535, 2-537

password-recovery mechanism, enabling and disabling2-251

permit (access-list configuration) command2-225

permit (MAC access-list configuration) command2-228

persistence command2-230

per-VLAN spanning-tree plus

See STP

PIM-DVMRP, as multicast router learning method2-151

police command2-231

policy-map command2-233

policy maps

applying to an interface2-253

creating2-233

displaying2-372

policers

displaying2-356

for a single class2-231

traffic classification

defining the class2-33

defining the trust states2-207

setting DSCP values2-254

Port Aggregation Protocol

See EtherChannel

port-based authentication

debug messages, displayC-4

enabling 802.1X2-96

guest VLAN2-90

manual control of authorization state2-96

multiple hosts on authorized port2-91

periodic re-authentication

enabling2-100

time between attempts2-103

quiet period between failed authentication exchanges2-103

re-authenticating 802.1X-enabled ports2-98

resetting configurable 802.1X parameters2-89

statistics and status display2-305

switch-to-client frame-retransmission number2-94

switch-to-client retransmission time2-103

port-channel load-balance command2-236

Port Fast, for spanning tree2-460

port ranges, defining2-80

ports, debug messages, displayC-8

port security

aging2-487

displaying2-374

enabling2-483

violation error recovery timer2-109

port trust states for QoS2-207

power supply alarms, settingA-3

power-supply dual commandA-10

power-supply modeA-10

primary temperature alarmA-4

private configuration files2-26

privileged EXEC mode1-2to 1-3

profile (interface configuration) command2-238

profile (sequence configuration) command2-240

protected ports

displaying2-323

enabling2-491

pruning, VTP

displaying interface information2-317

enabling2-531, 2-535, 2-537

publications, relatedxvii

PVST+

See STP

Q

QoS

ACPs, displaying2-354

automatic configuration2-15

class maps

creating2-35

defining the match criteria2-199

displaying2-264

configuration information, displaying2-356

defining the CoS value for an incoming packet2-203

displaying configuration information2-260

maps

defining2-205

displaying2-358

QoS (continued)

policers, displaying2-356

policy maps

applying to an interface2-253

creating2-233

defining policers2-231

displaying policy maps2-372

setting DSCP values2-254

traffic classifications2-33

port trust states2-207

queues

CoS-to-egress-queue map2-543

expedite2-541

WRR weights2-541

quality of service

See QoS

querytime, MVR2-213

R

rapid per-VLAN spanning-tree plus

See STP

rapid PVST+

See STP

rate selection, resetting2-44

rate selection command2-242

rate selection profile lock command2-243

rate selection sequence command2-244

rcommand command2-246

re-authenticating 802.1X-enabled ports2-98

re-authentication

periodic2-100

time between attempts2-103

receiver port, MVR2-218

receiving flow-control packets2-111

recovery mechanism

causes2-109

displaying2-309

timer interval2-109

redundancy for cluster switches2-64

relay-major commandA-6

relay-minor commandA-6

remote-span command2-248

Remote Switched Port Analyzer

See RSPAN

rename commandB-18

reset command2-524, B-19

reset interface2-39

reset LRE rate selection setting2-44

rmdir commandB-20

rmon collection stats command2-250

root guard, for spanning tree2-432

RPS status display2-377

RSPAN

and IDS2-212

configuring2-210

displaying2-360

remote-span command2-248

sessions

adding interfaces to2-210

displaying2-360

starting new2-210

S

secondary temperature alarmA-4

sending flow-control packets2-111

service password-recovery command2-251

service-policy command2-253

set command2-254

set command, bootloaderB-21

setup express command2-256

SFP2-201

SFP module preferred2-201

show access-lists command2-258

show alarm description port commandA-11

show alarm profile commandA-12

show alarm settings commandA-14

show auto qos command2-260

show boot command2-262

show changes command2-524

show class-map command2-264

show cluster candidates command2-268

show cluster command2-266

show cluster members command2-270

show controller lre cpe command2-281

show controllers ethernet-controller command2-272

show controllers lre actual command2-284

show controllers lre admin command2-287

show controllers lre link monitor command2-289

show controllers lre log2-41

show controllers lre log command2-292

show controllers lre profile command2-294

show controllers lre sequence command2-297

show controllers lre status command2-299

show controllers lre version command2-304

show current command2-524

show dot1x command2-305

show env command2-308

show env power commandA-16

show env temperature commandA-16

show errdisable recovery command2-309

show etherchannel command2-311

show facility-alarm relay commandA-18

show facility-alarm status commandA-19

show fcs threhsold commandA-20

show file command2-314

show interfaces command2-317

show interfaces counters command2-326

show ip access-list command2-330

show ip dhcp snooping binding command2-333

show ip dhcp snooping command2-332

show ip igmp profile command2-335

show ip igmp snooping command2-336

show lacp command2-339

show lre upgrade command2-341

show mac access-group command2-345

show mac address-table command2-347

show mac address-table multicast command2-350

show mac address-table notification command2-352

show mls masks2-354

show mls qos interface command2-356

show mls qos maps command2-358

show monitor command2-360

show mvr command2-362

show mvr interface command2-364

show mvr members command2-366

show pagp command2-368

show parser macro command2-370

show policy-map command2-372

show port-security command2-374

show proposed command2-524

show rps command2-377

show running-config vlan command2-379

show setup express command2-381

show spanning-tree command2-382

show storm-control command2-388

show system mtu command2-391

show udld command2-392

show version command2-395

show vlan command2-396

show vlan command fields2-397

show vmps command2-400

show vtp command2-403

show wrr-queue bandwidth command2-408

show wrr-queue cos-map command2-409

shutdown command2-410

shutdown vlan command2-411

signal to noise ratio2-197

SNMP host, specifying2-415

snmp-server enable traps command2-412

snmp-server host command2-415

snmp trap mac-notification command2-419

SNMP traps

enabling MAC address notification2-186

enabling MAC address notification traps2-412, 2-419

enabling the sending of traps2-412

SNR

definition2-197

margins2-197

software images

downloading2-8

upgrading2-8

uploading2-13

software images, deleting2-82

software version, displaying2-395

source ports, MVR2-218

SPAN

and IDS2-212

configuring2-210

displaying2-360

sessions

add interfaces to2-210

displaying2-360

start new2-210

spanning-tree backbonefast command2-421

spanning-tree bpdufilter command2-422

spanning-tree bpduguard command2-424

spanning-tree cost command2-426

spanning-tree etherchannel command2-428

spanning-tree extend system-id command2-430

spanning-tree guard command2-432

spanning-tree link-type command2-434

spanning-tree loopguard default command2-435

spanning-tree mode command2-437

spanning-tree mst configuration command2-439

spanning-tree mst cost command2-441

spanning-tree mst forward-time command2-443

spanning-tree mst hello-time command2-444

spanning-tree mst max-age command2-446

spanning-tree mst max-hops command2-448

spanning-tree mst port-priority command2-450

spanning-tree mst priority command2-452

spanning-tree mst root command2-454

spanning-tree portfast (global configuration) command2-458

spanning-tree portfast (interface configuration) command2-460

spanning-tree port-priority command2-456

spanning-tree stack-port command2-462

spanning-tree uplinkfast command2-464

spanning-tree vlan command2-466

speed command2-469

SSH, configuring version2-155

static-access ports, configuring2-475

statistics, Ethernet group2-250

sticky learning, enabling2-483

storm control

broadcast, enabling2-472

displaying2-388

multicast, enabling2-472

unicast, enabling2-472

storm-control command2-472

STP

BackboneFast2-421

debug message display

BackboneFast eventsC-12

MSTPC-15

optimized BPDUs handlingC-14

spanning-tree activityC-10

switch shimC-17

transmitted and received BPDUsC-13

UplinkFastC-19

detection of indirect link failures2-421

EtherChannel misconfiguration2-428

extended system ID2-430

path cost2-426

protocol mode2-437

STP (continued)

root port

accelerating choice of new2-464

accelerating choice of new root in a stack2-462

cross-stack UplinkFast2-462

loop guard2-432

preventing from becoming designated2-432

restricting which can be root2-432

root guard2-432

UplinkFast2-464

root switch

affects of extended system ID2-430, 2-467

hello-time2-466

interval between BDPU messages2-466

interval between hello BPDU messages2-466

max-age2-466

port priority for selection of2-456

primary or secondary2-466

switch priority2-466

state changes

blocking to forwarding state2-460

enabling BPDU filtering2-422, 2-458

enabling BPDU guard2-424, 2-458

enabling Port Fast2-458, 2-460

enabling timer to recover from error state2-109

forward-delay time2-466

length of listening and learning states2-466

shutting down Port Fast-enabled ports2-458

state information display2-382

VLAN options2-452, 2-466

Switched Port Analyzer

See SPAN

switching characteristics

modifying2-481

returning to interfaces2-481

switchport access command2-475

switchport block command2-477

switchport mode command2-479

switchport nonegotiate command2-481

switchport port-security aging command2-487

switchport port-security command2-483

switchport priority extend command2-489

switchport protected command2-491

switchports, displaying2-317

switchport trunk command2-492

switchport voice vlan command2-495

syslog commandA-6

system mtu command2-497

T

tar files, creating, listing, and extracting2-10

Telnet, using with cluster switches2-246

temperature alarms, settingA-4

test relay commandA-21

tips, descriptionxvii

traceroute, Layer 2

See Layer 2 traceroute

traceroute mac command2-499

traceroute mac ip command2-502

trunk ports, configuring2-479

trunks

allowed VLANs2-492

native VLANs2-492

pruning-eligible VLAN list2-494

pruning VLANs2-492

VLAN 1 minimization2-493

trunks, to non-DTP device2-480

trusted boundary for QoS2-207

type commandB-24

U

UDLD

aggressive mode2-504, 2-506

debug messages, displayingC-27

enabling globally2-504

enabling per interface2-506

error recovery timer2-109

message timer2-504

normal mode2-504, 2-506

resetting shutdown interfaces2-508

status2-392

udld command2-504

udld port command2-506

udld reset command2-508

unicast suppression level

configuring2-472

displaying2-388

enabling2-472

unicast traffic counters2-326

UniDirectional Link Detection

See UDLD

unknown multicast traffic, preventing2-477

unknown unicast traffic, preventing2-477

unset (boot loader) commandB-25

upgrade binary command2-509

upgrade preserve command2-510

upgrading software images2-8

UplinkFast, for STP2-464

upstream power back-off

configuring2-176

supported values2-177

URLs, Ciscoxviii

user EXEC mode1-2, 1-3

V

version commandB-27

vlan (global configuration) command2-511

vlan (VLAN configuration) command2-517

VLAN configuration

rules2-515, 2-519

saving2-512, 2-521

VLAN configuration mode

commands

VLAN2-517

VTP2-537

entering2-523

summary1-3

vlan database command2-523

VLAN ID range2-511, 2-517

VLAN Query Protocol

See VQP

VLANs

adding2-511

configuring2-511, 2-517

debug message display

ISLC-24

VLAN IOS file system error testsC-23

VLAN manager activityC-21

VTPC-25

displaying configurations2-396

extended-range2-511

MAC addresses

displaying2-347

number of2-347

media types2-514, 2-519

normal-range2-511, 2-517

saving the configuration2-511

shutting down2-411

SNMP traps for VTP2-413, 2-416

trunks, VLAN 1 minimization2-493

variables2-517

VMPS

configuring servers2-529

reconfirming dynamic VLAN assignments2-527

vmps reconfirm (global configuration) command2-526

vmps reconfirm (privileged EXEC) command2-527

vmps retry command2-528

vmps server command2-529

voice VLAN

configuring2-495

setting port priority2-489

VQP

and dynamic-access ports2-476

clearing client statistics2-53

displaying information2-400

per-server retry count2-528

reconfirmation interval2-526

reconfirming dynamic VLAN assignments2-527

VTP

changing characteristics2-531

clearing pruning counters2-54

clearing VTP counters2-54

configuring

domain name2-531, 2-537

file name2-531

mode2-531, 2-537

password2-531, 2-535, 2-537

counters display fields2-404

displaying information2-403

enabling

pruning2-531, 2-535, 2-537

version 22-531, 2-535, 2-537

mode2-531, 2-537

pruning2-531, 2-535, 2-537

saving the configuration2-512, 2-521

status display fields2-405

vtp (global configuration) command2-531

vtp (privileged EXEC) command2-535

vtp (VLAN configuration) command2-537

W

World Wide Web, for providing feedbackxviii

WRR, assigning weights to egress queues2-541

wrr-queue bandwidth command2-541

wrr-queue cos-map command2-543