Cisco 7246 - uBR Router Bedienungsanleitung PDF herunterladen (Seite 62)

Command Reference

12.0(3)T

The following is sample output for the downstream cable interface of slot 6 on port 0 from the show

interface cable downstream command:

router# show interface cable 6/0 downstream

Cable6/0: Downstream is up

111947771 packets output, 1579682655 bytes, 0 discarded

0 output errors

Table 9 describes the ﬁelds shown in the show interface cable downstream display.

no buffer Number of received packets discarded because there was no buffer

space in the main system.

Received broadcast Total number of broadcast or multicast packets received by the

interface.

runts Number of packets that are discarded because they are smaller than

the medium’s minimum packet size.

giants Number of packets that are discarded because they exceed the

medium’s maximum packet size.

input errors Includes runts, giants, no buffers, CRC, frame, overrun, and ignored

counts.

CRC Indicates the number of times the cyclic redundancy checksum

generated by the originating LAN station or far-end device does not

match the checksum calculated from the data received.

frame Number of packets received incorrectly having a CRC error and a

non-integer number of octets.

overrun Number of times the receiver hardware was unable to forward

received data to a hardware buffer because the input rate exceeded

the receiver’s ability to handle the data.

ignored Number of received packets ignored by the interface because the

interface hardware ran low on internal buffers.

packets output Total number of messages transmitted by the system.

bytes Total number of bytes, including data and MAC encapsulation,

transmitted by the system.

underruns Number of times the transmitter has been running faster than the

receiving device can handle.

output errors Sum of all errors that prevented the ﬁnal transmission of packets out

of the interface being examined.

collisions Not applicable to the Cisco uBR7246.

interface resets Number of times an interface has been completely reset.

output buffer failures Number of times the output buffer has failed.

output buffer swapped out Number of times the output buffer has been swapped out.

Table 9 show interface cable downstream Command Field Descriptions

Field Description

Cable Indicates the location of the downstream interface.

Table 8 show interface cable Command Field Descriptions (Continued)

Field Description

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 77 78

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