show interfaces cable-modem
112 Cisco IOS Release 12.0(7)T
Examples
Traffic passing through the cable access router interface is shown in the following example:uBR924# show interfaces cable-modem 0
cable-modem0 is up, line protocol is up
Hardware is BCM3300, address is 0050.7366.2439 (bia 0050.7366.2439)
Internet address is 5.2.0.11/16
MTU 1500 bytes, BW 27000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation DOCSIS, loopback not set
Keepalive set (10 sec)
ARP type:ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:08:40
Queueing strategy:fifo
Output queue 40/40, 52787 drops; input queue 0/75, 0 drops
5 minute input rate 2000 bits/sec, 2 packets/sec
5 minute output rate 94000 bits/sec, 154 packets/sec
1074 packets input, 418472 bytes, 0 no buffer
Received 19 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
78771 packets output, 6326786 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Table16 describes the significant fields shown in the display.Table16 show interfaces cable-modem Field Descriptions
Field Description
cable-modem0 is up Indicates that the interface is currently active. “Disabled” indicates the interface
has received more than 5000 errors in one keepalive interval (10 seconds by
default if keepalive is set); “administratively down” indicates the interface has
been taken down by an administrator.
line protocol is up Indicates that the software processes that handle the line protocol believe the
interface is usable.
Hardware Hardware type and MAC address.
Internet address Internet address followed by the shorthand notation for the subnet mask.
MTU Maximum Transmission Unit (equivalent of the maximum packet size) for the
interface.
BW Bandwidth of the interface in kilobits per second.
DLY Delay of the interface in microseconds.
reliability Reliability of the interface, expressed as a fraction of 255, calculated as an
exponential average over a 5-minute period. (255/255 equals 100% reliability.)
tx load/rx load Load on the interface caused by transmitting and receiving, expressed as a
fraction of 255, calculated as an exponential average over a 5 minute period.
Encapsulation/loopback/keepalive Encapsulation method assigned to the interface.
loopback Indicates whether or not loopback is set.
keepalive Indicates whether or not keepalives are set.
ARP type Type of Address Resolution Protocol configured for the interface.
ARP Timeout Number of hours, minutes, and seconds an ARP cache entry will stay in the
cache.