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Chapter 3
Cisco CMTS Show Commands
Examples
The following example shows typical output for upstream port 0 on the indicated cable interface:
Router# show interface c3/0 mac-scheduler 0
Router#
Table 3-52
Table 3-52 show interface cable mac-scheduler Field Descriptions
Field
Queue...
OL-1581-08
DOCSIS 1.1 MAC scheduler for Cable3/0/U0
Queue[Rng Polls] 0/64, 0 drops
Queue[CIR Grants] 0/64, 0 drops
Queue[BE(7) Grants] 0/64, 0 drops
Queue[BE(6) Grants] 0/64, 0 drops
Queue[BE(5) Grants] 0/64, 0 drops
Queue[BE(4) Grants] 0/64, 0 drops
Queue[BE(3) Grants] 0/64, 2 drops
Queue[BE(2) Grants] 0/64, 0 drops
Queue[BE(1) Grants] 0/64, 0 drops
Queue[BE(0) Grants] 0/64, 0 drops
Req Slots 21992195, Req/Data Slots 0
Init Mtn Slots 313764, Stn Mtn Slots 37638
Short Grant Slots 3739132, Long Grant Slots 512
Fragmentation count 5
Fragmentation test disabled
Avg upstream channel utilization : 2%
Avg percent contention slots : 96%
Avg percent initial ranging slots : 1%
Avg percent minislots lost on late MAPs : 0%
Sched Table Adm-State: Grants 1, Reqpolls 0, Util 2%
UGS
: 1 SIDs, Reservation-level in bps 80000
UGS-AD : 0 SIDs, Reservation-level in bps 0
RTPS
: 0 SIDs, Reservation-level in bps 0
NRTPS
: Not Supported
BE
: 4 SIDs, Reservation-level in bps 0
describes the fields shown by the show interface cable mac-scheduler command.
Description
Displays the state of each of the scheduler's first-in, first-out (FIFO)
priority queues. For each queue, the command displays the following:
Name of the queue. The following queues are available:
•
–
Rng Polls—Queue used for Ranging Requests.
–
CIR Grants—Queue used for committed information rate (CIR)
grants, which is used for Unsolicited Grant Service (UGS) and
UGS with Activity Detection (UGS-AD) service flows.
BE(x) Grants—One of the 8 queues used for best-effort service
–
flows.
Number of currently occupied slots over the total number of slots
•
available (which is hardcoded to 64 for each queue). For example,
3/64 indicates that the queue has a depth of 64 slots available and
that 3 are currently in use.
Number of packets dropped because the queue already had 64
•
requests pending and a free slot was therefore not available.
Cisco Broadband Cable Command Reference Guide
show interface cable mac-scheduler
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