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Cisco IOS Interface Command Reference, Release 12.1
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About the Cisco IOS Software Documentation
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Using Cisco IOS Software
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Interface Commands - Introduction
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Interface Commands (access-list - cut-through)
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Interface Commands (dce-terminal-timing enable - interface)
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Interface Commands (interface fastethernet - loopback line)
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Interface Commands (loopback remote - service-module t1 remote-loopback)
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Interface Commands (service-module t1 timeslots - show hub)
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Interface Commands (show interfaces - show interfaces vg-anylan)
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Interface Commands (show pas caim - tx-queue-limit)
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Index
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Table Of Contents
Index: Cisco IOS Interface Command Reference, Release 12.1
Symbols A B C D E F G H I K L M N O P Q R S T U V W X
Symbols
Numerics
100VG AnyLAN port adapter
configuring IR-153
displaying information IR-290
A
abbreviating commands
context-sensitive help viii, ix, xiii
access-list (type-code) command IR-3
Address Resolution Protocol
See ARP
AMI line coding IR-455
AppleTalk
tunneling
Cayman IR-476
protect interface IR-13, IR-17
aps authenticate command IR-5
aps force command IR-6
aps group command IR-8
aps lockout command IR-10
aps manual command IR-11
aps protect command IR-13
aps revert command IR-14
aps timers command IR-15
aps unidirectional command IR-16
aps working command IR-17
ARP
displaying accounting information IR-303
asynchronous interfaces
compression
ignore-pfc option for async drivers IR-69
groups
designating IR-149
Asynchronous Transfer Mode-Data Exchange Interface
See ATM-DXI
ATM
SONET PLIM IR-18
ATM-DXI IR-99
atm sonet command IR-18
automatic protection switching
See APS
automatic receiver polarity reversal IR-19
auto-polarity command IR-19
B
B8ZS line coding IR-455
bandwidth
setting IR-20
bandwidth command IR-20
C
cable length IR-28
cablelength command IR-28
cablelength long command IR-29
cablelength short command IR-32
carrier-delay command IR-34
cautions
usage in text viii
Cayman tunneling
AppleTalk IR-476
CCO
accessing ix
definition ix
channel-group (Fast EtherChannel) command IR-34
channelized T1
Channelized T3 Interface Processor (CT3IP)
See T3
channel service unit/data service unit
See CSU/DSU
Cisco Connection Online
See CCO
Cisco IOS
saving configuration changes xvi
clear controller lex command IR-37
clear counters command IR-39
clear hub command IR-42
clear hub counters command IR-43
clearing counters IR-39
clear interface command IR-44
clear interface fastethernet command IR-47
clear interface serial command IR-49
clear service-module serial command IR-50
clock rate
(examples) IR-52
clock rate command IR-51
clock signal
inverting IR-160
clock source
T1 IR-450
T3 IR-58
clock source (Cisco AS5200) command IR-55
clock source (Cisco MC3810) command IR-62
clock source (controller) command IR-56
clock source (CT3IP) command IR-58
clock source (interface) command IR-60
clock source command IR-53 to IR-54
cmt connect command IR-64
cmt disconnect command IR-66
command modes
summary (table) xii
compress command IR-68
compression
configuring IR-68
HDLC encapsulation IR-69
LABP encapsulation IR-69
LAPB IR-70
MPPC
ignore-pfc option IR-69
PPP encapsulation IR-69
RAND compression algorithm IR-70
service adapter IR-68
statistics
displaying IR-240
compress mppc command IR-73
compress predictor command
See compress command
concentrator port
enabling IR-199
configuration, saving xvi
Configuration Management
FDDI MAC-level connection IR-330
controller t1 command IR-77
controller t3 command IR-78
copy flash lex command IR-81
copy tftp lex command IR-82
counters
CRC
G.703/G.704 IR-84
setting IR-83
crc4 command IR-84
crc bits 5 command IR-85
crc command IR-83
CSU/DSU
Cisco 2524 or Cisco 2525
resetting IR-50
loopback IR-182
cut-through command IR-85
cyclic redundancy check
See CRC
D
data
inverting IR-156
data communications equipment
See DCE
data compression IR-71
data-link connection identifier
See DLCI
data service unit
See DSU
DCE
clock rate IR-51
timing IR-87
dce-terminal-timing enable command IR-87
dedicated Token Ring
See DTR
default form of a command
using xv
delay command IR-88
description (controller) command IR-89
Distance Vector Multicast Routing Protocol
See DVMRP
distributed compression IR-68
DLCI
interface statistics, displaying IR-359
multicast mechanism
displaying statistics about IR-359
down-when-looped command IR-90
DS-3 link
DSU
configuration information
displaying IR-264
interoperability mode
setting IR-92
maximum bandwidth
setting IR-91
dsu bandwidth command IR-91
dsu mode command IR-92
dte-invert-txc command IR-94
DTR
signal pulsing IR-214
duplex command IR-95
DVMRP IR-476
E
early-token-release command IR-98
EEPROM IR-292
electrically erasable programmable read-only memory
See EEPROM
encapsulation
ATM-DXI IR-99
bstun IR-99
hdlc IR-99
lapb IR-99
ppp IR-99
encapsulation command IR-99
Ethernet
100VG AnyLAN port adapter IR-153, IR-290
bandwidth IR-20
bridging from FDDI IR-107
extending twisted-pair 10BaseT capability IR-446
MOP enabled IR-191
specifying media type IR-189
external port
T1 IR-451
F
Facility Data Link
See FDL
Fast EtherChannel IR-34
assigning a Fast Ethernet IR-34
configuring IR-150
displaying information IR-349
Fast Ethernet
assigning a Fast EtherChannel IR-34
displaying Fast EtherChannel information IR-349
Fast EtherChannel IR-34
Fast EtherChannel interface IR-150
FDDI
bit specifications IR-105
bridging configurations IR-107
determining bandwidth IR-114
encapsulation mode compatibility IR-107
full-duplex status IR-327
stopping IR-64
transmission time, controlling IR-112
fddi burst-count command IR-102
fddi c-min command IR-103
fddi cmt-signal-bits command IR-104
fddi duplicate-address-check command IR-106
fddi encapsulate command IR-107
fddi frames-per-token command IR-109
FDDI processor
See FIP
fddi smt-frames command IR-110
fddi tb-min command IR-111
fddi tl-min-time command IR-112
fddi token-rotation-time command IR-114
fddi t-out command IR-113
fddi valid-transmission-time command IR-115
FDL
performance report IR-453, IR-461
fdl command IR-116
Fiber Distributed Data Interface
See FDDI
FIP
displaying information about IR-254
flow-based WRED
interface statistics
displaying IR-301
framed mode
G.703-E1 interface IR-467
framed mode on G.703-E1 interface IR-467
Frame Relay
DLCI
interface statistics IR-359
multicast mechanism statistics IR-359
LMI
general statistics, displaying IR-359
frame-relay payload-compression frf9 stac command IR-118
frame type
selecting IR-122
framing
T1 IR-454
T3 IR-125
framing (E1/T1controller) command IR-122
framing (E3/T3 interface) command IR-123
framing (T3 controller) command IR-125
full-duplex command IR-127
G
G.703-E1 interface
clock source IR-56, IR-60, IR-61
CRC IR-84
framed mode IR-467
time slot 16 IR-471
unframed mode IR-467
G.704 interface
CRC IR-84
generic route encapsulation
See GRE
global configuration mode
summary xii
group and member asynchronous interfaces IR-149
H
half-duplex command IR-130
half-duplex controlled-carrier command IR-132
half-duplex timer command IR-134
hardware compression
compression service adapter IR-68
displaying IR-241
HDLC
compression IR-68
High-Level Data Link Control
See HDLC
hold-queue command IR-136
hssi external-loop-request command IR-138
hssi internal-clock command IR-139
hub command IR-140
hub ports
automatic receiver polarity reversal IR-19
clearing hub counters IR-43
enabling IR-140
hub statistics
displaying IR-297
link test function IR-170
resetting IR-42
shutting down IR-438
source address control IR-443
I
ignore-dcd command IR-141
interface command IR-143
interface configuration mode
summary xii
interface fastethernet command IR-147
interface group-async command IR-149
interface port-channel command IR-150
interface pos command IR-152
interfaces
counters, clearing IR-439
E1-G.703/G.704
enabling framed mode IR-467
G.703-E1
clock source IR-56, IR-60, IR-61
CRC IR-84
enabling framed mode IR-467
time slot 16 IR-471
low-speed serial IR-197
PA-E3 clock source IR-56
restarting IR-439
shutting down IR-439
unit numbers IR-37, IR-39, IR-44, IR-143
interface vg-anylan command IR-153
international bit command IR-155
invert data command IR-156, IR-455
invert rxclock command IR-158
invert-transmit-clock command
See invert txclock command
invert txclock command IR-160
K
keepalive command IR-161
L
LAN Extender interface
access-list (standard) command IR-2
access list filtering
Ethernet packets IR-164
MAC address IR-163
burned-in MAC address IR-162
downloading
from Flash IR-81
from TFTP server IR-82
priority output queueing IR-165
rebooting IR-37
retry count IR-166
show statistics IR-340
timeout IR-167
Lanoptics Hub Networking Management IR-171
LAPB
interface statistics, displaying IR-370
lex burned-in-address command IR-162
lex input-address-list command IR-163
lex input-type-list command IR-164
lex priority-group command IR-165
lex retry-count command IR-166
lex timeout command IR-167
linecode command IR-168
line-code type, selecting IR-168
line coding
format IR-196
T1 IR-455
line-termination command IR-169
Link Access Procedure, Balanced
See LAPB
link-test command IR-170
LMI
general statistics
displaying IR-359
local-lnm command IR-171
Local Management Interface
See LMI
loopback
dte IR-181
MCI serial card IR-172
over DS-3 or channelized T1 link IR-184, IR-185
SCI serial card IR-172
through CSU/DSU IR-182
X.21 DTE limitation IR-172
loopback (E3/T3 interface) command IR-174
loopback (interface) command IR-172
loopback (T1 interface) command IR-176
loopback (T3 controller) command IR-179
loopback applique command IR-180
loopback dte command IR-181
loopback interfaces IR-145
loopback line command IR-182
loopback remote (interface) command IR-184
low-speed serial interfaces
physical layer IR-197
LZS compression algorithm IR-68
M
Maintenance Operation Protocol
See MOP
maximum transmission unit
See MTU
MCI interface card
loopback on serial IR-172
pulsing DTR signal IR-214
mdl command IR-187
media-type command IR-189
media-type half-duplex command
See half-duplex command
MIP
CT3IP external port IR-451
mode
framed IR-467
unframed IR-467
modes
See command modes
MOP
enabling an interface to support IR-191
mop enabled command IR-191
mop sysid command IR-192
MTU
default values by media type (table) IR-193
mtu command IR-193
MultiChannel Interface Processor
See MIP
Multiport Communications Interface
See MCI interface card
N
national bit command IR-195
network management hub IR-171
no form of a command
using xv
nonreturn-to-zero inverted
See NRZI
notes
usage in text ix
NRZI
enabling IR-196
nrzi-encoding command IR-196
O
online documentation
See CCO
P
physical-layer command IR-197
Point-to-Point Protocol
See PPP
port command IR-199
pos flag command IR-201
pos framing command IR-203
pos framing-sdh
See pos framing command
pos framing-sdh command IR-204
posi framing-sdh
See pos framing command
posi framing-sdh command IR-212
pos internal-clock command
See clock source (CT3IP) command
pos report command IR-206
pos scramble-atm command IR-208
pos threshold command IR-210
PPP
compression IR-68
encapsulation IR-99
predictor compression IR-68, IR-69, IR-70
pri-group command IR-213
privileged EXEC mode
summary xii
prompts
system xii
pulse-time command IR-214
Q
question command xiii
R
RAND compression algorithm IR-68, IR-69, IR-70
RFC 1042
Standard for the Transmission of IP Datagrams Over IEEE 802 Networks IR-107
RFC 1332
PPP Internet Protocol Control Protocol (IPCP) IR-100
RFC 1406
Definitions of Managed Objects for DS1 and E1 Interface Types IR-281
RFC 1407
DS3 MIB Variables IR-280
ring-speed command IR-215
ROM monitor mode
summary xii
S
saving configuration changes xvi
SCI cards
loopback on IR-172
scramble command IR-216
SDLC
secondary descriptions (table) IR-305
sdlc cts-delay command
See half-duplex timer command
sdlc hdx command IR-218
See half-duplex command
sdlc rts-delay command
See half-duplex timer command
serial interfaces
clearing IR-44
DTR signal pulsing IR-214
loopback IR-172
low-speed IR-197
media type IR-189
monitoring synchronous IR-371
service-module 56k clock rate command IR-220
service-module 56k clock source command IR-222
service-module 56k data-coding command IR-223
service-module 56k network-type command IR-224
service-module 56k remote-loopback command IR-226
service-module t1 clock source command IR-228
service-module t1 data-coding command IR-229
service-module t1 framing command IR-231
service-module t1 lbo command IR-232
service-module t1 linecode command IR-233
service-module t1 remote-alarm-enable command IR-234
service-module t1 remote-loopback command IR-235
service-module t1 timeslots command IR-237
show aps command IR-238
show compress command IR-240
show controllers cbus command IR-242, IR-245
show controllers ethernet command IR-248
show controllers fastethernet command IR-250
show controllers fddi command IR-254
show controllers lex command IR-255
show controllers mci command IR-257
show controllers pcbus command IR-259
show controllers pos command IR-260
show controllers serial command IR-264
show controllers t1 command IR-268
show controllers t3 command IR-274
show controllers token command IR-285
show controllers vg-anylan command IR-290
show diagbus command IR-295
show diag command IR-292
show hub command IR-297
show interfaces
configuration statistics, displaying IR-301
configuring interfaces IR-316
custom queueing output display IR-302
disabled IR-307
SDLC information
displaying IR-372
show interfaces accounting command IR-303
show interfaces command IR-300
show interfaces ethernet accounting command IR-311
show interfaces ethernet command IR-311
show interfaces fastethernet command IR-316
show interfaces fddi accounting command IR-325
show interfaces fddi command IR-325
show interfaces hssi command IR-334
show interfaces ip-brief command IR-339
show interfaces lex command IR-340
show interfaces loopback command IR-345
show interfaces port-channel command IR-349
show interfaces pos command IR-354
show interfaces serial accounting command IR-359
show interfaces serial command IR-359
show interfaces tokenring command IR-378
show interfaces tunnel command IR-384
show interfaces vg-anylan command IR-399
show pas eswitch address command IR-415
show tdm connections command IR-424
show tdm connections motherboard command IR-425
show tdm data command IR-427
shutdown (controller) command IR-437
shutdown (hub) command IR-438
shutdown (interface) command IR-439
signals
pulsing DTR IR-214
Simple Network Management Protocol
See SNMP
smt-queue-threshold command IR-440
SNMP
trap address violation IR-441
snmp trap illegal-address command IR-441
software compression
displaying IR-240
for LAPB IR-68
source-address command IR-443
speed command IR-444
squelch command IR-446
Stacker compression IR-68
subinterface configuration mode xii
subinterfaces
configuring IR-143, IR-144, IR-146
Synchronous Data Link Control Protocol
See SDLC
T
t1 bert command IR-448
t1 clock source command IR-450
t1 command IR-447
T1 controller
adding descriptive name IR-89
t1 external command IR-451
t1 fdl ansi command IR-453
t1 framing command IR-454
t1 linecode command IR-455
t1 test command IR-457
t1 timeslot command IR-459
t1 yellow command IR-461
T3
BERT test IR-448
cable length IR-28
clock source IR-58
configuration IR-79
display controllers IR-274
display interface IR-367
external port IR-451
FDL
performance report IR-453, IR-461
framing IR-125
line coding IR-455
T1 clock source IR-450
T1 framing IR-454
T1 test IR-457
T1 timeslots IR-459
Tab key
command completion xiii
test interface fastethernet command IR-464
test service-module command IR-465
THT
FDDI IR-114
time-division multiplexing
clock source IR-55
timers
token holding IR-114
timeslot command IR-467
timeslots
T1 IR-459
token holding timer
See THT
Token Ring Interface Processor
See TRIP
token rotation time
See TRT
transition states
FDDI IR-327
translational bridging IR-107
transmit-clock-internal command IR-469
transmit clock signal
inverting IR-160
transmitter-delay command IR-470
transparent bridging
on FDDI interface IR-107
type-code IR-3
trap
message
address violation IR-441
TRIP
displaying information about IR-285
TRT
FDDI IR-114
ts16 command IR-471
tunnel checksum command IR-472
tunnel destination command IR-473
tunneling
AppleTalk
Cayman IR-476
tunnel key command IR-475
tunnel mode command IR-476
tunnel sequence-datagrams command IR-478
tunnel source command IR-479
tx-queue-limit command IR-481
U
unit numbers
interface IR-37, IR-39, IR-44, IR-143
user EXEC mode
summary xii
V
VIC
slot information IR-292
virtual interfaces
loopback interface IR-145
tunnel interface IR-145
voice interface cards
See VIC
W
Weighted Random Early Detection
See WRED
WRED
interface statistics
displaying IR-301
X
X.25
interface statistics
displaying IR-375
X3T9.5 specification IR-114