Chapter 4 Troubleshooting the System
Understanding Show Command Responses
Table
Field | Description |
output buffer failures | Number of times the output buffer has failed |
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output buffer swapped out | Number of times the output buffer has been swapped out |
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See the following 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
Field | Description |
Cable | Indicates the location of the downstream interface. |
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Downstream is up/...administratively down | Indicates the administrative state of the interface. |
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packets output | Total number of packets transmitted out of this interface. |
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bytes | Total number of bytes transmitted out of this interface |
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discarded | Total number of packets discarded |
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output errors | Sum of all errors that prevented downstream transmission of |
| packets out of this interface |
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See the following sample output for the upstream cable interface located in slot 3/port 0 from the show interface 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 |
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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 |
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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% |
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Avg percent initial ranging slots : 0% | ||
Avg percent minislots lost on late | MAPs : 0% | |
Total channel bw reserved 0 bps |
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CIR admission control not enforced |
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Current minislot count : 6676390 | Flag: 0 | |
Scheduled minislot count : 6676545 | Flag: 0 | |
Table
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
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