Specifications

show interfaces cable-modem
Bridging and Routing Features for the Cisco uBR904 Cable Modem 31
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4495 packets input, 1153221 bytes, 0 no buffer
Received 8 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
12841 packets output, 1708272 bytes, 0 underruns
0 output errors, 0 collisions, 11 interface resets
0 output buffer failures, 0 output buffers swapped out
Table 4 describes the significant fields shown in the display.
Table 4 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.
Last input/output Number of hours, minutes, and seconds since the last packet was successfully
received/transmitted by the interface.
output hang Number of hours, minutes, and seconds since the interface was last reset because
of a transmission that took too long. When the number of hours in any of the
“Last..” fields exceeds 24, the number of days and hours is displayed. If the field
overflows, asterisks are printed.