Troubleshooting guide

7-43
Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 7 Troubleshooting the CMTS
Troubleshooting the Cisco uBR7246VXR
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
non-zero value for the guaranteed-upstream rate.
When one of these modems is admitted on the
upstream, this field value is increased 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 will be admitted by the Cisco
uBR7246VXR 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.
Queue[CIR Grants] The MAC scheduler queue showing the number of
CIR grants pending.
For example, “Queue [CIR Grants] 0/20, fair
queueing, 0 drops” means that the queue for
CIR-service grants has a current depth of 0, a
maximum depth of 20. Weighted fair queueing
shows grants in this queue.
Queue[BE Grants] The MAC scheduler queue showing the number of
BE grants pending.
Queue[Grant Shpr] The MAC scheduler queue showing the number of
grants that have been buffered for traffic shaping.
Drops Number of packets dropped.
Reserved slot table currently has 0 CBR entries Number of CBR sessions active on an upstream
channel at any given time.
Req IEs The running counter of request IEs sent in MAPS.
Req/Data IEs The counter of request/data IEs sent in MAPS.
Table 7-8 Show Interface Cable Upstream Command Field Descriptions (continued)
Field Description