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