Installation guide

5-25
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 5 Troubleshooting the System
Understanding Show Command Responses
See the following sample output for the upstream cable interface for upstream cable interface 0 from the
show interface cable upstream command:
Router# show interface cable 1/0 upstream 0
Cable1/0: 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 queuing, 0 drops
Queue[Cont Mslots] 0/104, fifo queuing, 0 drops
Queue[CIR Grants] 0/20, fair queuing, 0 drops
Queue[BE Grants] 0/30, fair queuing, 0 drops
Queue[Grant Shpr] 0/30, calendar queuing, 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
Table 5-6 describes the fields shown in the show interface cable upstream display.
Table 5-5 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.
Table 5-6 show interface cable upstream Command Field Descriptions
Field Description
Cable
Indicates the location of the upstream interface.
Upstream is
up/...administratively
down
Indicates the administrative state of the upstream interface.
Received broadcasts
Number of broadcast packets received through this upstream
interface.
multicasts
Number of multicast packets received through this upstream interface.