Datasheet

18 Release 11.1 CA
Command Reference
Table 2 describes significant fields shown in the display.
Table 2 Show Interfaces Serial Field Descriptions
Field Description
Serial... is {up | down}
...is administratively down
Indicates whether the interface hardware is currently active (whether
carrier detect is present), inactive, or has been taken down by an
administrator.
line protocol
is {up | down}
Indicates whether the software processes that handle the line protocol
consider the line usable (that is, whether keepalives are successful) or
if it has been taken down by an administrator.
Hardware is Specifies the hardware type.
Internet address is Specifies the Internet address and subnet mask.
MTU Maximum Transmission Unit of the interface.
BW Indicates the value of the bandwidth parameter that has been
configured for the interface (in kilobits per second). The bandwidth
parameter is used to compute IGRP metrics only. If the interface is
attached to a serial line with a line speed that does not match the
default (1536 or 1544 for T1 and 56 for a standard synchronous serial
line), use the bandwidth command to specify the correct line speed
for this serial line.
DLY Delay of the interface in microseconds.
rely Reliability of the interface as a fraction of 255 (255/255 is 100%
reliability), calculated as an exponential average over 5 minutes.
load Load on the interface as a fraction of 255 (255/255 is completely
saturated), calculated as an exponential average over 5 minutes.
Encapsulation Encapsulation method assigned to interface.
loopback Indicates whether loopback is set or not.
keepalive Indicates whether keepalives are set or not.
Last input Number of hours, minutes, and seconds since the last packet was
successfully received by an interface. Useful for knowing when a dead
interface failed.
Last output Number of hours, minutes, and seconds since the last packet was
successfully transmitted by an interface.
output hang Number of hours, minutes, and seconds (or never) 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 hours, the
number of days and hours is printed. If that field overflows, asterisks
are printed.
Last clearing of “show interface”
counters
Time the counters were last cleared.
Queueing strategy First-in, first-out queuing strategy (other queueing strategies you
might see are priority-list, custom-list, and weighted fair).
Output queue, drops
input queue, drops
Number of packets in output and input queues. Each number is
followed by a slash, the maximum size of the queue, and the number
of packets dropped due to a full queue.