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show interface cable upstream
0 discards, 925 errors, 0 unknown protocol
409835 packets input, 20 uncorrectable
884 noise, 0 microreflections
Total Modems On This Upstream Channel : 51 (51 active)
Default MAC scheduler
Queue[Rng Polls]
Queue[Cont Mslots]
Queue[CIR Grants]
Queue[BE Grants]
Queue[Grant Shpr]
Reserved slot table currently has 0 CBR entries
Req IEs 8296144, Req/Data IEs 0
Init Mtn IEs 57962, Stn Mtn IEs 14413
Long Grant IEs 133168, Short Grant IEs 67845
Avg upstream channel utilization : 6%
Avg percent contention slots : 89%
Avg percent initial ranging slots : 2%
Avg percent minislots lost on late MAPs : 0%
Total channel bw reserved 0 bps
CIR admission control not enforced
Admission requests rejected 0
Current minislot count
Scheduled minislot count : 6788190
Router#
The following is sample output for the upstream cable interface located in slot 6/port 0 from the show
interface cable upstream command (DOCSIS 1.1 Cisco IOS software releases):
Router# show interface cable 6/0 upstream 0
Upstream 0 is up
Router#
The following is sample output for the upstream cable interface located for the Cisco uBR-MC5X20S
and Cisco uBR-MC28U/X cards, which provides information about the error counters maintained by the
card's onboard MAC controller for each upstream interface:
Router# show interface cable 6/1/0 upstream 0
Cable6/1/0: Upstream 3 is up
Received 140 broadcasts, 2075 multicasts, 134502 unicasts
0 discards, 144954 errors, 0 unknown protocol
136717 packets input, 0 uncorrectable
0 noise, 0 microreflections
Total Modems On This Upstream Channel : 37 (35 active)
JIB counters for ifInErrors:
Router#
The following shows sample output for the ugs statistics option:
Router# show interface cable 6/1/0 upstream 3 ugs statistics
Cisco Broadband Cable Command Reference Guide
3-244
0/64, fifo queueing, 0 drops
0/52, fifo queueing, 1 drops
0/64, fair queueing, 0 drops
0/64, fair queueing, 0 drops
0/64, calendar queueing, 0 drops
: 6788097
Received 38085 broadcasts, 5758 multicasts, 17257229 unicasts
0 discards, 1451132592 errors, 0 unknown protocol
17301072 packets input, 48239157 uncorrectable
1071719720 noise, 0 microreflections
Total Modems On This Upstream Channel : 147 (142 active)
us_error_frame_drop 72477
us_crc_error 4
us_hcs_error 72473
us_cont_collision 0
us_uncorr_cw_rcvd 14
Chapter 3
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Cisco CMTS Show Commands
OL-1581-08
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