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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
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Chapter4 Troubleshooting the System Understanding Show Command Responses
See the following sample output for the downstream cable interface of slot 6 on port 0 from theshowinterface cable downstreamcommand:
router# show interface cable 6/0 downstream
Cable6/0: Downstream is up
111947771 packets output, 1579682655 bytes, 0 discarded
0 output errors
Seethe following sample output for the upstream cable interface located in slot 3/port 0 from the showinterface cable upstream command:
router# show interface cable 3/0 upstream 0
Cable3/0: Upstream 0 is up
Received 16873 broadcasts, 0 multicasts, 73310 unicasts
0 discards, 89053 errors, 0 unknown protocol
90183 packets input, 1 uncorrectable
89042 noise, 0 microreflections
Total Modems On This Upstream Channel : 8 (4 active)
Default MAC scheduler
Queue[Rng Polls] 0/20, fifo queueing, 0 drops
Queue[Cont Mslots] 0/104, fifo queueing, 0 drops
Queue[CIR Grants] 0/20, fair queueing, 0 drops
Queue[BE Grants] 0/30, fair queueing, 0 drops
Queue[Grant Shpr] 0/30, calendar queueing, 0 drops
Reserved slot table currently has 0 CBR entries
Req IEs 134469315, Req/Data IEs 0
Init Mtn IEs 385879, Stn Mtn IEs 131059
Long Grant IEs 10766, Short Grant IEs 15895
Avg upstream channel utilization : 1%
Avg percent contention slots : 97%
Avg percent initial ranging slots : 0%
Avg percent minislots lost on late MAPs : 0%
Total channel bw reserved 0 bps
CIR admission control not enforced
Current minislot count : 6676390 Flag: 0
Scheduled minislot count : 6676545 Flag: 0
Table4-18 describes the fields shown in the show interface cable upstreamdisplay.output buffer failures Number of times the output buffer has failedoutput buffer swapped out Number of times the output buffer has been swapped out
Table4-16 Show Interface Cable Command Field Descriptions (continued)
Field Description
Table4-17 Show Interface Cable Downstream Command Field Descriptions
Field Description
Cable Indicates the location of the downstream interface.
Downstream is up/...administratively down Indicates the administrative state of the interface.
packets output Total number of packets transmitted out of this interface.
bytes Total number of bytes transmitted out of this interface
discarded Total number of packets discarded
output errors Sum of all errors that prevented downstream transmission of
packets out of this interface