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Catalyst 2950 and Catalyst 2955 Switch Command Reference, 12.1(22)EA2
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Index
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Preface
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Using the Command-Line Interface
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Catalyst 2950 and 2955 Switch Cisco IOS Commands - a through r
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Catalyst 2950 and 2955 Switch Cisco IOS Commands - s
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Catalyst 2950 and 2955 Switch Cisco IOS Commands - t through z
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Catalyst 2955 Alarm Commands
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Catalyst 2950 and 2955 Switch Boot Loader Commands
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Catalyst 2950 and 2955 Switch Debug Commands
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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 command2-522
access control entries
access control lists
access control parameters
access groups
IP2-123
MAC
applying ACL to interface2-175
displaying2-349
access-list (IP extended) command2-5
access-list (IP standard) command2-8
access-list configuration mode
deny2-82
entering2-125
permit2-224
access ports2-477
ACLs
IP
applying to interface2-123
deny2-82
permit2-224
MAC
applying to interface2-175
deny2-85
displaying2-258
permit2-227
ACPs, displaying2-357
aggregate-port learner2-221
alarm commandA-6
alarm facility fcs-hysteresis commandA-2
alarm facility power-supply commandA-3
alarm facility temperature commandA-4
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 command2-522
archive download-sw command2-10
archive tar command2-12
archive upload-sw command2-15
audiencexv
authorization state of controlled port2-96
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
C
cat commandB-3
caution, descriptionxvi
channel-group command2-30
channel-protocol command2-33
Cisco SoftPhone
auto-QoS configuration2-17
trusting packets sent from2-207
class command2-35
class-map command2-37
class maps
creating2-37
defining the match criteria2-198
displaying2-265
class of service
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 spanning-tree counters command2-52
clear spanning-tree detected-protocols command2-53
clear vmps statistics command2-54
clear vtp counters command2-55
cluster commander-address command2-56
cluster discovery hop-count command2-58
cluster enable command2-59
cluster holdtime command2-60
cluster management-vlan command2-61
cluster member command2-62
cluster run command2-64
clusters
adding candidates2-62
binding to HSRP2-65
building manually2-62
communicating with members by using Telnet2-246
displaying
candidate switches2-269
member switches2-271
status2-267
heartbeat messages
duration after which switch declared down2-60
interval between2-67
hop-count limit for extended discovery2-58
HSRP standby groups2-65
clusters (continued)redundancy2-65
SNMP trap2-412
cluster standby-group command2-65
cluster timer command2-67
command switch
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
description1-4
entering2-509
summary1-2
controller longreachethernet command2-68
conventions
commandxv
for examplesxvi
publicationxv
textxv
copy commandB-4
CoS
default value, assigning to incoming packets2-202
incoming value, overriding2-202
priority queue, assigning values to2-541
priority queue mapping, displaying2-409
WRR bandwidth allocation, displaying2-408
WRR weights, assigning to CoS priority queues2-539
CoS-to-DSCP map
default2-204
defining2-204
cpe duplex command2-69
CPE Ethernet ports, clearing2-39
cpe protected command2-71
cpe shutdown command2-72
cpe type command2-78
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
define interface-range command2-79
delete LRE link history2-43
delete LRE link monitor data2-42
deny (access-list configuration) command2-82
deny (MAC access-list configuration) command2-85
DHCP, error recovery timer2-107
DHCP snooping
displaying
bindings2-337
configuration2-336
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
dot1x command2-87
dot1x default command2-89
dot1x guest-vlan command2-90
dot1x host-mode command2-92
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
DSCP-to-CoS map
default2-205
defining2-204
DTP2-478
DTP flap, error recovery timer2-107
duplex command2-103
dynamic-access ports, configuring2-471
Dynamic Host Configuration Protocol (DHCP)
Dynamic Trunking Protocol
E
EAP-request/identity frame
maximum number to send2-94
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
displaying2-314
LACP, modes2-30
load-distribution methods2-235
PAgP
aggregate-port learner2-221
clearing channel-group information2-45, 2-49
debug messages, displayingC-7
error recovery timer2-107
learn method2-221
modes2-30
priority of interface for transmitted traffic2-223
Ethernet controller, internal register display2-273
Ethernet link statistics2-39
Ethernet statistics, collecting2-250
examples, conventions forxvi
exit command2-522
expedite queue, QoS2-539
express setup-related commands2-256, 2-383
extended discovery of candidate switches2-58
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, displaying2-311
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, VTP2-529
files, deleting2-81
flash_init commandB-8
flowcontrol command2-109
flow-control packets
receiving2-109
sending2-109
format commandB-9
frame check sequence
fsck commandB-10
G
global configuration mode1-2, 1-3
H
heartbeat messages
duration after which switch declared dead2-60
interval between2-67
help commandB-11
holdtime for clusters2-60
hop-count limit for clusters2-58
host connection, port configuration2-475
Hot Standby Router Protocol
HSRP
binding HSRP group to cluster2-65
standby group2-65
hw-module slot command2-113
I
IDS, using with SPAN and RSPAN2-212
IEEE 802.1x commands, authentication methods2-3
IGMP filters, applying2-134
IGMP groups
configuring throttling action2-135
setting maximum2-135
IGMP profiles
creating2-137
displaying2-339
IGMP snooping
adding ports statically2-150
compatibility mode, displaying2-340
configuration, displaying2-340
enabling2-139
IGMP version, displaying2-340
Immediate-Leave processing2-147
MAC address tables2-354
multicast groups, displaying2-340
multicast router detection2-140
multicast router ports, displaying2-340
multicast routers2-148
per VLAN2-146
report suppression2-142
source-only-learning2-144
source-only-learning aging time2-144
images
Immediate-Leave feature, MVR2-216
Immediate-Leave processing2-147
interface command2-116
interface configuration mode1-2, 1-4
interface port-channel command2-118
interface range command2-119
interface-range macros2-79
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
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
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 command2-140
ip igmp snooping report-suppression command2-142
ip igmp snooping source-only-learning age-timer2-144
ip igmp snooping source-only-learning command2-144
ip igmp snooping vlan command2-146
ip igmp snooping vlan immediate-leave command2-147
ip igmp snooping vlan mrouter command2-148
ip igmp snooping vlan static command2-150
IP multicast addresses2-213
IP phones
auto-QoS configuration2-17
trusting packets sent from2-207
ip ssh command2-152
IPv41-1
IPv61-1
IP version 41-1
IP version 61-1
J
jumbo frames
displaying setting2-392
setting switch for2-495
L
LACP
lacp port-priority command2-154
lacp system-priority command2-155
Layer 2 traceroute
IP addresses2-500
MAC addresses2-497
line configuration mode1-2, 1-5
Link Aggregation Control Protocol
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 EtherChannel2-235
local duplex command2-161
local speed command2-162
logging lre command2-163
logical interface2-118
loopback, error recovery timer2-107
loop guard, for spanning tree2-431, 2-434
LRE controller, defined2-68
lre profile command2-164
lre rate selection command2-46
lre rate selection sequence command2-166
lre sequence command2-168
lre syslog command2-170
lre upbo command2-171
M
mac access-group command2-175
MAC access-list configuration mode
deny2-85
entering2-177
permit2-227
mac access-list extended command2-177
MAC ACLs
deny2-85
permit2-227
MAC addresses
and port security2-481
clearing notification global counters2-47
displaying
aging time2-351
dynamic2-351
multicast entries2-354
notification setting2-356
number of addresses2-351
per interface2-351
per VLAN2-351
secure2-377
static2-351
dynamic
aging time2-179
deleting2-47
displaying2-351
enabling MAC address notification2-181
MAC addresses (continued)secure
adding2-481
displaying2-377
static
adding2-183
displaying2-351
dropping on an interface2-185
sticky
configuring manually2-481
enabling sticky learning2-481
learning dynamically2-481
mac address-table aging-time command2-179
mac address-table notification command2-181
mac address-table static command2-183
mac address-table static drop command2-185
MAC-named extended ACLs2-177
MAC notification feature
clearing global counters2-47
configuring2-181
enabling2-181
macro description command2-190
macro global command2-191
macro global description command2-193
macro name command2-194
macros
adding a description2-190
adding a global description2-193
applying2-191
creating2-194
displaying2-372
interface range2-79
specifying parameter values2-191
tracing2-191
manual
purpose ofxv
audiencexv
maps, QoS
defining2-204
displaying2-361
margin command2-196
masks
match (class-map configuration) command2-198
maximum transmission unit
media-type command2-200
member switches
memory commandB-13
mkdir commandB-15
mls qos cos command2-202
mls qos map command2-204
mls qos trust command2-207
mode, MVR2-213
Mode button, and password recovery2-251
monitor session command2-210
more commandB-16
MSTP
displaying2-385
interoperability2-53
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 process2-53
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
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
multicast groups, MVR2-214
multicast router detection2-140
multicast router learning method2-148
multicast router ports, configuring2-148
multicast suppression level
configuring2-468
displaying2-389
enabling2-468
multicast VLAN, MVR2-214
multicast VLAN registration
multiple hosts on authorized port2-92
Multiple Spanning Tree Protocol
MVR
configuring2-213
configuring interfaces2-217
displaying2-365
Immediate Leave feature2-216
receiver port2-217
source port2-217
mvr command2-213
mvr group command2-214
mvr immediate command2-216
mvr type command2-217
mvr vlan group command2-219
N
nonegotiate, speed2-465
normal-range VLANs2-509, 2-515
note, descriptionxvi
notifies commandA-6
O
option 82, DHCP snooping2-129
P
PAgP
pagp learn-method command2-221
pagp port-priority command2-223
password, VTP2-529, 2-533, 2-535
password-recovery mechanism, enabling and disabling2-251
permit (access-list configuration) command2-224
permit (MAC access-list configuration) command2-227
persistence command2-229
per-VLAN spanning-tree plus
PIM-DVMRP, as multicast router learning method2-148
police command2-230
policy-map command2-232
policy maps
applying to an interface2-253
creating2-232
displaying2-375
policers
displaying2-359
for a single class2-230
traffic classification
defining the class2-35
defining the trust states2-207
setting DSCP values2-254
Port Aggregation Protocol
port-based authentication
802.1x AAA accounting methods2-1
debug messages, displayC-4
enabling 802.1x2-96
guest VLAN2-90
manual control of authorization state2-96
multiple hosts on authorized port2-92
periodic re-authentication
enabling2-100
time between attempts2-101
quiet period between failed authentication exchanges2-101
re-authenticating 802.1x-enabled ports2-98
port-based authentication (continued)resetting configurable 802.1x parameters2-89
statistics and status display2-308
switch-to-client frame-retransmission number2-94
switch-to-client retransmission time2-101
port-channel load-balance command2-235
Port Fast, for spanning tree2-456
port ranges, defining2-79
ports, debug messages, displayC-8
port security
aging2-485
displaying2-377
enabling2-481
violation error recovery timer2-107
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 files2-28
profile (interface configuration) command2-237
profile (sequence configuration) command2-239
protected ports
displaying2-327
enabling2-489
pruning, VTP
displaying interface information2-322
publications, relatedxvi
PVST+
Q
QoS
ACPs, displaying2-357
automatic configuration2-17
class maps
creating2-37
defining the match criteria2-198
displaying2-265
configuration information, displaying2-359
defining the CoS value for an incoming packet2-202
displaying configuration information2-260
maps
defining2-204
displaying2-361
policers, displaying2-359
policy maps
applying to an interface2-253
creating2-232
defining policers2-230
displaying policy maps2-375
setting DSCP values2-254
traffic classifications2-35
port trust states2-207
queues
CoS-to-egress-queue map2-541
expedite2-539
WRR weights2-539
trusted boundary for Cisco SoftPhones2-207
trusted boundary for IP phones2-207
quality of service
querytime, MVR2-213
R
rapid per-VLAN spanning-tree plus
rapid PVST+
rate selection, resetting2-46
rate selection command2-241
rate selection profile lock command2-242
rate selection sequence command2-244
rcommand command2-246
re-authenticating 802.1x-enabled ports2-98
re-authentication
periodic2-100
time between attempts2-101
receiver port, MVR2-217
receiving flow-control packets2-109
recovery mechanism
causes2-107
displaying2-312
timer interval2-107
redundancy for cluster switches2-65
relay-major commandA-6
relay-minor commandA-6
remote-span command2-248
Remote Switched Port Analyzer
rename commandB-17
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 IDS2-212
configuring2-210
displaying2-363
remote-span command2-248
sessions
adding interfaces to2-210
displaying2-363
starting new2-210
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
SFP2-200
SFP module preferred2-200
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 command2-522
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 controller utilization command2-306
show current command2-522
show dot1x command2-308
show env command2-311
show env power commandA-16
show env temperature commandA-16
show errdisable recovery command2-312
show etherchannel command2-314
show facility-alarm relay commandA-18
show facility-alarm status commandA-19
show fcs threshold commandA-20
show file command2-317
show flowcontrol command2-320
show interfaces command2-322
show interfaces counters command2-331
show ip access-list command2-334
show ip dhcp snooping binding command2-337
show ip dhcp snooping command2-336
show ip igmp profile command2-339
show ip igmp snooping command2-340
show lacp command2-343
show lre upgrade command2-345
show mac access-group command2-349
show mac address-table command2-351
show mac address-table multicast command2-354
show mac address-table notification command2-356
show mls masks2-357
show mls qos interface command2-359
show mls qos maps command2-361
show monitor command2-363
show mvr command2-365
show mvr interface command2-366
show mvr members command2-368
show pagp command2-370
show parser macro command2-372
show policy-map command2-375
show port-security command2-377
show proposed command2-522
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 ratio2-196
Smartports 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 notification2-181
enabling MAC address notification traps2-412, 2-419
enabling the sending of traps2-412
SNR
definition2-196
margins2-196
software images
deleting2-81
downloading2-10
upgrading2-10
uploading2-15
software version, displaying2-396
source ports, MVR2-217
SPAN
and IDS2-212
configuring2-210
displaying2-363
sessions
add interfaces to2-210
displaying2-363
start new2-210
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 version2-152
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 (continued)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
Switched Port Analyzer
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, displaying2-322
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
traceroute, Layer 2
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 QoS2-207
type commandB-23
U
UDLD
debug messages, displayingC-28
enabling globally2-502
enabling per interface2-504
error recovery timer2-107
message timer2-502
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
UniDirectional Link Detection
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
configuring2-171
supported values2-172
URLs, Ciscoxvii
V
version commandB-26
vlan (global configuration) command2-509
vlan (VLAN configuration) command2-515
VLAN configuration
VLAN configuration mode
commands
VLAN2-515
VTP2-535
entering2-521
summary1-2
vlan database command2-521
VLAN Query Protocol
VLANs
adding2-509
debug message display
ISLC-24
VLAN IOS file system error testsC-23
VLAN manager activityC-21
VTPC-26
displaying configurations2-397
VLANs (continued)extended-range2-509
MAC addresses
displaying2-351
number of2-351
saving the configuration2-509
shutting down2-411
SNMP traps for VTP2-413, 2-416
trunks, VLAN 1 minimization2-491
variables2-515
VMPS
configuring servers2-527
reconfirming dynamic VLAN assignments2-525
vmps reconfirm (global configuration) command2-524
vmps reconfirm (privileged EXEC) command2-525
vmps retry command2-526
vmps server command2-527
voice VLAN
configuring2-493
setting port priority2-487
VQP
and dynamic-access ports2-472
clearing client statistics2-54
displaying information2-400
per-server retry count2-526
reconfirmation interval2-524
reconfirming dynamic VLAN assignments2-525
VTP
changing characteristics2-529
clearing pruning counters2-55
clearing VTP counters2-55
configuring
file name2-529
counters display fields2-404
VTP (continued)displaying information2-403
enabling
saving the configuration2-509, 2-519
status display fields2-405
vtp (global configuration) command2-529
vtp (privileged EXEC) command2-533
vtp (VLAN configuration) command2-535
W
WRR, assigning weights to egress queues2-539
wrr-queue bandwidth command2-539
wrr-queue cos-map command2-541