Installation guide

5-26
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 5 Troubleshooting the System
Understanding Show Command Responses
unicasts
Number of unicast packets received through this interface.
discards
Number of packets discarded by this interface.
errors
Sum of all errors that prevented upstream transmission of packets
through this interface.
unknown protocol
Number of packets received that were generated using a protocol
unknown to the Cisco uBR7100 series.
packets input
Number of packets received through this upstream interface that were
free from errors.
corrected
Number of error packets received through this upstream interface that
were corrected.
uncorrectable
Number of error packets received through this upstream interface that
could not be corrected.
noise
Number of upstream packets corrupted by line noise.
microreflections
Number of upstream packets corrupted by microreflections.
Guaranteed-rate service
queue depth
Number of bandwidth requests queued up in the Guarantee-rate
queue. This queue is only available to modems that have a reserved
minimum upstream rate in their class of service.
Best-effort service queue
depth
Number of bandwidth requests queued up in the Best-effort queue.
This queue is available to all modems that do not have any reserved
rate on the upstream.
Total Modems On This
Upstream Channel
Number of cable modems currently sharing this upstream channel.
This field also shows how many of these modems are active.
Current Total Bandwidth
Reserved
Total amount of bandwidth reserved by all modems sharing this
upstream channel that require bandwidth reservation. The class of
service for these modems specifies some nonzero value for the
guaranteed-upstream rate. When one of these modems is admitted on
the upstream, this field value is incremented by this
guaranteed-upstream rate value.
CIR admission control
(formerly: Current
Admission Control Status)
Indicates the status of admission control on the upstream channel
ENFORCED status allows users to enable admission control on a per
port basis. This controls how limited bandwidth is allocated. NOT
ENFORCED status indicates that there is no admission control. Every
modem that registers with a class of service specifying a minimum
upstream rate is admitted by the CMTS regardless of how much
aggregate bandwidth is actually available.
Users enable admission control by using the admission control CLI.
Default MAC scheduler
Indicates the status of the MAC scheduler as being in default mode as
opposed to Automated Test Procedure (ATP).
Queue[Rng Polls]
The MAC scheduler queue showing the number of ranging polls.
Queue[Cont Mslos]
The MAC scheduler queue showing the number of forced contention
request slots in MAPS.
Table 5-6 show interface cable upstream Command Field Descriptions (continued)
Field Description