Catalyst 2950 and Catalyst 2955 Switch Command Reference, 12.1(20)EA2
Index

Table Of Contents

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

Index

Numerics

802.1x violation error recovery2-107

A

aaa accounting dot1x command2-1

aaa authentication command2-3

abort command2-521

access control entries

See ACEs

access control lists

See ACLs

access control parameters

See ACPs

access groups

IP2-123

MAC

applying ACL to interface2-176

displaying2-347

access-list (IP extended) command2-5

access-list (IP standard) command2-8

access-list configuration mode

deny2-83

entering2-125

permit2-225

access ports2-477

ACEs2-87, 2-229

ACLs

IP

applying to interface2-123

deny2-83

displaying2-258, 2-332

permit2-225

MAC

applying to interface2-176

deny2-86

displaying2-258

permit2-228

ACPs, displaying2-356

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 command2-521

archive download-sw command2-10

archive tar command2-12

archive upload-sw command2-15

audiencexv

authorization state of controlled port2-95

autonegotiation of duplex mode2-103

auto qos voip command2-17

B

BackboneFast, for STP2-420

boot boothlpr command2-21

boot buffersize command2-22

boot commandB-2

boot config-file command2-23

boot enable-break command2-24

boot helper command2-25

boot helper-config file command2-26

booting

Cisco IOS image2-29

interrupting2-24

manually2-27

booting, displaying environment variables2-263

boot loader

accessingB-1

booting

Cisco IOS imageB-2

helper image2-25

directories

creatingB-15

displaying a list ofB-6

removingB-19

displaying

available commandsB-11

memory heap utilizationB-13

versionB-26

environment variables

describedB-20

displaying settingsB-20

location ofB-22

settingB-20

unsettingB-24

boot loader (continued)

files

copyingB-4

deletingB-5

displaying a list ofB-6

displaying the contents ofB-3, B-16, B-23

renamingB-17

file system

formattingB-9

initializing FlashB-8

running a consistency checkB-10

loading helper imagesB-12

promptB-1

resetting the systemB-18

boot manual command2-27

boot private-config-file command2-28

boot system command2-29

BPDU filtering, for spanning tree2-421, 2-454

BPDU guard, for spanning tree2-423, 2-454

broadcast suppression level

configuring2-468

displaying2-389

broadcast traffic counters2-328

C

cat commandB-3

caution, descriptionxvi

channel-group command2-30

channel-protocol command2-33

Cisco SoftPhone

auto-QoS configuration2-17

trusting packets sent from2-208

class command2-35

class-map command2-37

class maps

creating2-37

defining the match criteria2-200

displaying2-265

class of service

See CoS

clear controllers ethernet-controller command2-39

clear controllers lre command2-41

clear controllers lre link monitor command2-42

clear controllers lre log command2-43

clear interface command2-44

clear lacp command2-45

clear LRE configuration events2-43

clear LRE timer events2-43

clear mac address-table command2-47

clear pagp command2-49

clear port-security command2-50

clear setup express command2-52

clear spanning-tree counters command2-53

clear spanning-tree detected-protocols command2-54

clear vmps statistics command2-55

clear vtp counters command2-56

cluster commander-address command2-57

cluster discovery hop-count command2-59

cluster enable command2-60

cluster holdtime command2-61

cluster management-vlan command2-62

cluster member command2-63

cluster run command2-65

clusters

adding candidates2-63

binding to HSRP2-66

building manually2-63

communicating with members by using Telnet2-246

displaying

candidate switches2-269

member switches2-271

status2-267

heartbeat messages

duration after which switch declared down2-61

interval between2-68

hop-count limit for extended discovery2-59

HSRP standby groups2-66

clusters (continued)

redundancy2-66

SNMP trap2-412

cluster standby-group command2-66

cluster timer command2-68

command modes defined1-2

command switch

See clusters

configuration files

password recovery disable considerationsB-1

setting the NVRAM size for2-22

specifying the name2-23

configuration files, private2-28

configuring multiple interfaces2-119to 2-120

config-vlan mode

commands2-510

description1-4

entering2-509

summary1-2

controller longreachethernet command2-69

conventions

commandxv

for examplesxvi

publicationxv

textxv

copy commandB-4

CoS

default value, assigning to incoming packets2-204

incoming value, overriding2-204

priority queue, assigning values to2-540

priority queue mapping, displaying2-409

WRR bandwidth allocation, displaying2-408

WRR weights, assigning to CoS priority queues2-538

CoS-to-DSCP map

default2-206

defining2-206

cpe duplex command2-70

CPE Ethernet ports, clearing2-39

cpe protected command2-72

cpe shutdown command2-73

cpe speed command2-75, 2-77

cpe type command2-79

cross-stack UplinkFast, for STP2-458

D

debug auto qos 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-26

debug udld commandC-28

defaultPort profileA-7, A-8

define interface-range command2-80

delete command2-82, B-5

delete LRE link history2-43

delete LRE link monitor data2-42

deny (access-list configuration) command2-83

deny (MAC access-list configuration) command2-86

DHCP, error recovery timer2-107

DHCP snooping

displaying

bindings2-335

configuration2-334

enabling

on a VLAN2-133

option 822-129

trust on an interface2-132

rate limiting2-131

dir commandB-6

documentation

feedbackxviii

obtainingxvii

orderingxvii

relatedxvi

document conventionsxv

domain name, VTP2-528, 2-534

dot1x default command2-89

dot1x guest-vlan command2-90

dot1x host-mode command2-91

dot1x initialize command2-92

dot1x max-req command2-93

dot1x multiple-hosts command2-94

dot1x port-control command2-95

dot1x re-authenticate command2-97

dot1x re-authentication command2-98

dot1x reauthentication command2-99

dot1x system-auth-control command2-100

DSCP-to-CoS map

default2-206

defining2-206

DTP2-478

DTP flap, error recovery timer2-107

duplex command2-103

dynamic-access ports, configuring2-471

Dynamic Host Configuration Protocol (DHCP)

See DHCP snooping

Dynamic Trunking Protocol

See DTP

E

EAP-request/identity frame

maximum number to send2-93

response time before retransmitting2-101

environmental alarms, displayingA-14

environment variables, displaying2-263

errdisable detect cause command2-105

errdisable recovery command2-107

EtherChannel

assigning Ethernet interface to channel group2-30

creating port-channel logical interface2-118

debug messages, displayingC-5to C-7

displaying2-312

LACP, modes2-30

load-distribution methods2-236

PAgP

aggregate-port learner2-222

clearing channel-group information2-45, 2-49

debug messages, displayingC-7

displaying2-341, 2-369

error recovery timer2-107

learn method2-222

modes2-30

priority of interface for transmitted traffic2-224

Ethernet controller, internal register display2-273

Ethernet link statistics2-39

Ethernet statistics, collecting2-250

examples, conventions forxvi

exit command2-521

expedite queue, QoS2-538

express setup-related commands2-52, 2-256, 2-383

extended discovery of candidate switches2-59

extended-range VLANs

and allowed VLAN list2-490

and pruning-eligible list2-490

configuring2-509

extended system ID for STP2-429

F

facility alarm relays, displayingA-18

facility alarm status, displayingA-19

fan information, displaying2-309

FCS bit error rate

displayingA-20

fluctuation thresholdA-2

settingA-9

FCS hysteresis thresholdA-2

fcs-threshold commandA-9

feedback to Cisco Systemsxviii

file name, VTP2-528

files, deleting2-82

flash_init commandB-8

flowcontrol command2-109

flow-control packets

receiving2-109

sending2-109

format commandB-9

frame check sequence

See FCS

fsck commandB-10

G

global configuration mode1-2, 1-4

H

heartbeat messages

duration after which switch declared dead2-61

interval between2-68

help commandB-11

holdtime for clusters2-61

hop-count limit for clusters2-59

host connection, port configuration2-475

Hot Standby Router Protocol

See HSRP

HSRP

binding HSRP group to cluster2-66

standby group2-66

hw-module slot command2-113

I

IDS, using with SPAN and RSPAN2-213

IEEE 802.1x commands, authentication methods2-3

IGMP filters, applying2-134

IGMP groups

configuring throttling action2-135

setting maximum2-135

IGMP profiles

creating2-137

displaying2-337

IGMP snooping

adding ports statically2-151

compatibility mode, displaying2-338

configuration, displaying2-338

enabling2-139

IGMP version, displaying2-338

Immediate-Leave processing2-148

MAC address tables2-352

multicast groups, displaying2-338

multicast router detection2-141

multicast router ports, displaying2-338

multicast routers2-149

per VLAN2-147

report suppression2-143

source-only-learning2-145

source-only-learning aging time2-145

images

See software images

Immediate-Leave feature, MVR2-217

Immediate-Leave processing2-148

interface command2-116

interface configuration mode1-2, 1-4

interface port-channel command2-118

interface range command2-119

interface-range macros2-80

interfaces

assigning Ethernet interface to channel group2-30

configuring2-103

configuring multiple2-119to 2-120

creating port-channel logical2-118

disabling2-410

restarting2-410

interleave command2-121

internal registers, displaying2-273

Intrusion Detection System

See IDS

invalid GBIC

error detection for2-105

error recovery timer2-107

ip access-group command2-123

ip access-list command2-125

ip address command2-127

ip addresses, setting2-127

IP DHCP snooping

See DHCP snooping

ip dhcp snooping command2-128

ip dhcp snooping information option command2-129

ip dhcp snooping limit rate command2-131

ip dhcp snooping trust command2-132

ip dhcp snooping vlan command2-133

ip igmp filter command2-134

ip igmp max-groups command2-135

ip igmp profile command2-137

ip igmp snooping command2-139

ip igmp snooping mrouter learn pim v2 command2-141

ip igmp snooping report-suppression command2-143

ip igmp snooping source-only-learning age-timer2-145

ip igmp snooping source-only-learning command2-145

ip igmp snooping vlan command2-147

ip igmp snooping vlan immediate-leave command2-148

ip igmp snooping vlan mrouter command2-149

ip igmp snooping vlan static command2-151

IP multicast addresses2-214

IP phones

auto-QoS configuration2-17

trusting packets sent from2-208

ip ssh command2-153

IPv41-1

IPv61-1

IP version 41-1

IP version 61-1

J

jumbo frames

displaying setting2-392

setting switch for2-495

L

LACP

See EtherChannel

lacp port-priority command2-155

lacp system-priority command2-156

Layer 2 traceroute

IP addresses2-500

MAC addresses2-497

line configuration mode1-3, 1-5

Link Aggregation Control Protocol

See EtherChannel

link flap

enable error detection for2-105

enable timer to recover from error state2-107

link statistics, clearing2-39

load_helper commandB-12

load-distribution methods for EtherChannel2-236

local duplex command2-162

local speed command2-163

logging lre command2-164

logical interface2-118

loopback, error recovery timer2-107

loop guard, for spanning tree2-431, 2-434

LRE controller, defined2-69

lre profile command2-165

lre rate selection command2-46

lre rate selection sequence command2-167

lre sequence command2-169

lre syslog command2-171

lre upbo command2-172

M

mac access-group command2-176

MAC access-list configuration mode

deny2-86

entering2-178

permit2-228

mac access-list extended command2-178

MAC ACLs

deny2-86

permit2-228

MAC addresses

and port security2-481

clearing notification global counters2-47

displaying

aging time2-349

dynamic2-349

multicast entries2-352

notification setting2-354

number of addresses2-349

per interface2-349

per VLAN2-349

secure2-376

static2-349

dynamic

aging time2-180

deleting2-47

displaying2-349

enabling MAC address notification2-182

MAC addresses (continued)

secure

adding2-481

displaying2-376

static

adding2-184

displaying2-349

dropping on an interface2-186

sticky

configuring manually2-481

enabling sticky learning2-481

learning dynamically2-481

mac address-table aging-time command2-180

mac address-table notification command2-182

mac address-table static command2-184

mac address-table static drop command2-186

MAC-named extended ACLs2-178

MAC notification feature

clearing global counters2-47

configuring2-182

enabling2-182

macro description command2-191

macro global command2-192

macro global description command2-195

macro name command2-196

macros

adding a description2-191

adding a global description2-195

applying2-192

creating2-196

displaying2-371

interface range2-80

specifying parameter values2-192

tracing2-192

manual

purpose ofxv

manual. audiencexv

maps, QoS

defining2-206

displaying2-360

margin command2-198

masks

See ACPs

match (class-map configuration) command2-200

maximum transmission unit

See MTU

media-type command2-202

member switches

See clusters

memory commandB-13

mkdir commandB-15

mls qos cos command2-204

mls qos map command2-206

mls qos trust command2-208

mode, MVR2-214

Mode button, and password recovery2-251

monitor session command2-211

more commandB-16

MSTP

displaying2-385

interoperability2-54

link type2-433

MST region

aborting changes2-438

applying changes2-438

configuration name2-438

configuration revision number2-438

current or pending display2-438

displaying2-385

MST configuration mode2-438

VLANs-to-instance mapping2-438

path cost2-440

protocol mode2-436

restart protocol migration process2-54

MSTP (continued)

root port

loop guard2-431

preventing from becoming designated2-431

restricting which can be root2-431

root guard2-431

root switch

affects of extended system ID2-429

hello-time2-443, 2-450

interval between BDPU messages2-444

interval between hello BPDU messages2-443, 2-450

max-age2-444

maximum hop count before discarding BPDU2-446

port priority for selection of2-447

primary or secondary2-450

switch priority2-449

state changes

blocking to forwarding state2-456

enabling BPDU filtering2-421, 2-454

enabling BPDU guard2-423, 2-454

enabling Port Fast2-454, 2-456

forward-delay time2-442

length of listening and learning states2-442

rapid transition to forwarding2-433

shutting down Port Fast-enabled ports2-454

state information display2-384

MTU

configuring size2-495

displaying global setting2-392

multicast groups

See IGMP snooping

multicast groups, MVR2-215

multicast router detection2-141

multicast router learning method2-149

multicast router ports, configuring2-149

multicast suppression level

configuring2-468

displaying2-389

enabling2-468

multicast traffic counters2-328

multicast VLAN, MVR2-215

multicast VLAN registration

See MVR

multiple hosts on authorized port2-91

Multiple Spanning Tree Protocol

See MSTP

MVR

configuring2-214

configuring interfaces2-218

displaying2-364

Immediate Leave feature2-217

receiver port2-218

source port2-218

mvr command2-214

mvr group command2-215

mvr immediate command2-217

mvr type command2-218

mvr vlan group command2-220

N

nonegotiate, speed2-465

normal-range VLANs2-509, 2-514

note, descriptionxvi

notifies commandA-6

no vlan command2-509, 2-518

O

option 82, DHCP snooping2-129

P

PAgP

See EtherChannel

pagp learn-method command2-222

pagp port-priority command2-224

password, VTP2-528, 2-532, 2-534

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 method2-149

police command2-231

policy-map command2-233

policy maps

applying to an interface2-253

creating2-233

displaying2-374

policers

displaying2-358

for a single class2-231

traffic classification

defining the class2-35

defining the trust states2-208

setting DSCP values2-254

Port Aggregation Protocol

See EtherChannel

port-based authentication

802.1x AAA accounting methods2-1

debug messages, displayC-4

enabling 802.1x2-95

guest VLAN2-90

manual control of authorization state2-95

multiple hosts on authorized port2-91

periodic re-authentication

enabling2-99

time between attempts2-101

quiet period between failed authentication exchanges2-101

port-based authentication (continued)

re-authenticating 802.1x-enabled ports2-97

resetting configurable 802.1x parameters2-89

statistics and status display2-306

switch-to-client frame-retransmission number2-93

switch-to-client retransmission time2-101

port-channel load-balance command2-236

Port Fast, for spanning tree2-456

port ranges, defining2-80

ports, debug messages, displayC-8

port security

aging2-485

displaying2-376

enabling2-481

violation error recovery timer2-107

port trust states for QoS2-208

power supply alarms, settingA-3

power-supply dual commandA-10

power-supply modeA-10

primary temperature alarmA-4

private configuration files2-28

privileged EXEC mode1-2to 1-3

profile (interface configuration) command2-238

profile (sequence configuration) command2-240

protected ports

displaying2-325

enabling2-489

pruning, VTP

displaying interface information2-320

enabling2-528, 2-532, 2-534

publications, relatedxvi

PVST+

See STP

Q

QoS

ACPs, displaying2-356

automatic configuration2-17

class maps

creating2-37

defining the match criteria2-200

displaying2-265

configuration information, displaying2-358

defining the CoS value for an incoming packet2-204

displaying configuration information2-260

maps

defining2-206

displaying2-360

policers, displaying2-358

policy maps

applying to an interface2-253

creating2-233

defining policers2-231

displaying policy maps2-374

setting DSCP values2-254

traffic classifications2-35

port trust states2-208

queues

CoS-to-egress-queue map2-540

expedite2-538

WRR weights2-538

trusted boundary for Cisco SoftPhones2-208

trusted boundary for IP phones2-208

quality of service

See QoS

querytime, MVR2-214

R

rapid per-VLAN spanning-tree plus

See STP

rapid PVST+

See STP

rate selection, resetting2-46

rate selection command2-242

rate selection profile lock command2-243

rate selection sequence command2-244

rcommand command2-246

re-authenticating 802.1x-enabled ports2-97

re-authentication

periodic2-99

time between attempts2-101

receiver port, MVR2-218

receiving flow-control packets2-109

recovery mechanism

causes2-107

displaying2-310

timer interval2-107

redundancy for cluster switches2-66

relay-major commandA-6

relay-minor commandA-6

remote-span command2-248

Remote Switched Port Analyzer

See RSPAN

rename commandB-17

reset command2-521, B-18

reset interface2-41

reset LRE rate selection setting2-46

rmdir commandB-19

rmon collection stats command2-250

root guard, for spanning tree2-431

RPS status display2-379

RSPAN

and IDS2-213

configuring2-211

displaying2-362

remote-span command2-248

sessions

adding interfaces to2-211

displaying2-362

starting new2-211

S

secondary temperature alarmA-4

sending flow-control packets2-109

service password-recovery command2-251

service-policy command2-253

set command2-254

set command, bootloaderB-20

setup express command2-256

SFP2-202

SFP module preferred2-202

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 command2-263

show changes command2-521

show class-map command2-265

show cluster candidates command2-269

show cluster command2-267

show cluster members command2-271

show controller lre cpe command2-282

show controllers ethernet-controller command2-273

show controllers lre actual command2-285

show controllers lre admin command2-288

show controllers lre link monitor command2-290

show controllers lre log2-43

show controllers lre log command2-293

show controllers lre profile command2-295

show controllers lre sequence command2-298

show controllers lre status command2-300

show controllers lre version command2-305

show current command2-521

show dot1x command2-306

show env command2-309

show env power commandA-16

show env temperature commandA-16

show errdisable recovery command2-310

show etherchannel command2-312

show facility-alarm relay commandA-18

show facility-alarm status commandA-19

show fcs threhsold commandA-20

show file command2-315

show flowcontrol command2-318

show interfaces command2-320

show interfaces counters command2-328

show ip access-list command2-332

show ip dhcp snooping binding command2-335

show ip dhcp snooping command2-334

show ip igmp profile command2-337

show ip igmp snooping command2-338

show lacp command2-341

show lre upgrade command2-343

show mac access-group command2-347

show mac address-table command2-349

show mac address-table multicast command2-352

show mac address-table notification command2-354

show mls masks2-356

show mls qos interface command2-358

show mls qos maps command2-360

show monitor command2-362

show mvr command2-364

show mvr interface command2-365

show mvr members command2-367

show pagp command2-369

show parser macro command2-371

show policy-map command2-374

show port-security command2-376

show proposed command2-521

show rps command2-379

show running-config vlan command2-381

show setup express command2-383

show spanning-tree command2-384

show storm-control command2-389

show system mtu command2-392

show udld command2-393

show version command2-396

show vlan command2-397

show vlan command fields2-398

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 ratio2-198

Smartports macros

See macros

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 notification2-182

enabling MAC address notification traps2-412, 2-419

enabling the sending of traps2-412

SNR

definition2-198

margins2-198

software images

deleting2-82

downloading2-10

upgrading2-10

uploading2-15

software version, displaying2-396

source ports, MVR2-218

SPAN

and IDS2-213

configuring2-211

displaying2-362

sessions

add interfaces to2-211

displaying2-362

start new2-211

spanning-tree backbonefast command2-420

spanning-tree bpdufilter command2-421

spanning-tree bpduguard command2-423

spanning-tree cost command2-425

spanning-tree etherchannel command2-427

spanning-tree extend system-id command2-429

spanning-tree guard command2-431

spanning-tree link-type command2-433

spanning-tree loopguard default command2-434

spanning-tree mode command2-436

spanning-tree mst configuration command2-438

spanning-tree mst cost command2-440

spanning-tree mst forward-time command2-442

spanning-tree mst hello-time command2-443

spanning-tree mst max-age command2-444

spanning-tree mst max-hops command2-446

spanning-tree mst port-priority command2-447

spanning-tree mst priority command2-449

spanning-tree mst root command2-450

spanning-tree portfast (global configuration) command2-454

spanning-tree portfast (interface configuration) command2-456

spanning-tree port-priority command2-452

spanning-tree stack-port command2-458

spanning-tree uplinkfast command2-460

spanning-tree vlan command2-462

speed command2-465

SSH, configuring version2-153

static-access ports, configuring2-471

statistics, Ethernet group2-250

sticky learning, enabling2-481

storm control

broadcast, enabling2-468

displaying2-389

multicast, enabling2-468

unicast, enabling2-468

storm-control command2-468

STP

BackboneFast2-420

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 failures2-420

EtherChannel misconfiguration2-427

extended system ID2-429

path cost2-425

protocol mode2-436

root port

accelerating choice of new2-460

accelerating choice of new root in a stack2-458

cross-stack UplinkFast2-458

loop guard2-431

preventing from becoming designated2-431

restricting which can be root2-431

root guard2-431

UplinkFast2-460

root switch

affects of extended system ID2-429, 2-463

hello-time2-462

interval between BDPU messages2-462

interval between hello BPDU messages2-462

max-age2-462

port priority for selection of2-452

STP root switch (continued)

primary or secondary2-462

switch priority2-462

state changes

blocking to forwarding state2-456

enabling BPDU filtering2-421, 2-454

enabling BPDU guard2-423, 2-454

enabling Port Fast2-454, 2-456

enabling timer to recover from error state2-107

forward-delay time2-462

length of listening and learning states2-462

shutting down Port Fast-enabled ports2-454

state information display2-384

VLAN options2-449, 2-462

Switched Port Analyzer

See SPAN

switching characteristics

modifying2-479

returning to interfaces2-479

switchport access command2-471

switchport block command2-473

switchport host command2-475

switchport mode command2-477

switchport nonegotiate command2-479

switchport port-security aging command2-485

switchport port-security command2-481

switchport priority extend command2-487

switchport protected command2-489

switchports, displaying2-320

switchport trunk command2-490

switchport voice vlan command2-493

syslog commandA-6

system mtu command2-495

T

tar files, creating, listing, and extracting2-12

Telnet, using with cluster switches2-246

temperature alarms, settingA-4

test relay commandA-21

tips, descriptionxvi

traceroute, Layer 2

See Layer 2 traceroute

traceroute mac command2-497

traceroute mac ip command2-500

trunk ports, configuring2-477

trunks

allowed VLANs2-490

native VLANs2-490

pruning-eligible VLAN list2-492

pruning VLANs2-490

VLAN 1 minimization2-491

trunks, to non-DTP device2-478

trusted boundary for QoS2-208

type commandB-23

U

UDLD

aggressive mode2-502, 2-504

debug messages, displayingC-28

enabling globally2-502

enabling per interface2-504

error recovery timer2-107

message timer2-502

normal mode2-502, 2-504

resetting shutdown interfaces2-506

status2-393

udld command2-502

udld port command2-504

udld reset command2-506

unicast suppression level

configuring2-468

displaying2-389

enabling2-468

unicast traffic counters2-328

UniDirectional Link Detection

See UDLD

unknown multicast traffic, preventing2-473

unknown unicast traffic, preventing2-473

unset (boot loader) commandB-24

upgrade binary command2-507

upgrade preserve command2-508

upgrading software images2-10

UplinkFast, for STP2-460

upstream power back-off

configuring2-172

supported values2-173

URLs, Ciscoxvii

user EXEC mode1-2, 1-3

V

version commandB-26

vlan (global configuration) command2-509

vlan (VLAN configuration) command2-514

VLAN configuration

rules2-512, 2-516

saving2-509, 2-518

VLAN configuration mode

commands

VLAN2-514

VTP2-534

entering2-520

summary1-3

vlan database command2-520

VLAN ID range2-509, 2-514

VLAN Query Protocol

See VQP

VLANs

adding2-509

configuring2-509, 2-514

debug message display

ISLC-24

VLAN IOS file system error testsC-23

VLAN manager activityC-21

VTPC-26

VLANs (continued)

displaying configurations2-397

extended-range2-509

MAC addresses

displaying2-349

number of2-349

media types2-511, 2-516

normal-range2-509, 2-514

saving the configuration2-509

shutting down2-411

SNMP traps for VTP2-413, 2-416

trunks, VLAN 1 minimization2-491

variables2-514

VMPS

configuring servers2-526

reconfirming dynamic VLAN assignments2-524

vmps reconfirm (global configuration) command2-523

vmps reconfirm (privileged EXEC) command2-524

vmps retry command2-525

vmps server command2-526

voice VLAN

configuring2-493

setting port priority2-487

VQP

and dynamic-access ports2-472

clearing client statistics2-55

displaying information2-400

per-server retry count2-525

reconfirmation interval2-523

reconfirming dynamic VLAN assignments2-524

VTP

changing characteristics2-528

clearing pruning counters2-56

clearing VTP counters2-56

configuring

domain name2-528, 2-534

file name2-528

mode2-528, 2-534

password2-528, 2-532, 2-534

VTP (continued)

counters display fields2-404

displaying information2-403

enabling

pruning2-528, 2-532, 2-534

version 22-528, 2-532, 2-534

mode2-528, 2-534

pruning2-528, 2-532, 2-534

saving the configuration2-509, 2-518

status display fields2-405

vtp (global configuration) command2-528

vtp (privileged EXEC) command2-532

vtp (VLAN configuration) command2-534

W

WRR, assigning weights to egress queues2-538

wrr-queue bandwidth command2-538

wrr-queue cos-map command2-540