Specifications

DOCSIS 1.1 for Cisco uBR905 and Cisco uBR925 Cable Access Routers and Cisco CVA122 Cable Voice Adapters

Command Reference

Cisco IOS Release 12.2(15)CZ

In Cisco IOS 12.2(15)CZ and later releases, the output for a DOCSIS 1.0 or DOCSIS 1.0+ cable modem

also includes the service flow types for each queue:

Router# show controllers cable-modem 0 qos

Queue SID SID SFID TX TX RX RX

Type Pkts Bytes Pkts Bytes

0 2 Primary 0 11377 2721985 12320 983969

1 52 Dynamic 52 116 13608 105 14300

2 0 NA 0 0 0 0 0

3 0 NA 0 0 0 0 0

Queue SF Type

0 BE

1 BE

2 NA

3 NA

Router#

Table 11 describes the significant fields shown in the display for a DOCSIS 1.0 or DOCSIS 1.0+ cable

modem.

In Cisco IOS Release 12.2(15)CZ and later releases, the QoS statistics include information about the

DOCSIS 1.1 operations, including the type of service flow and packet classifiers being used for each

queue. The following is a typical default display:

Router# show controllers cable-modem 0 qos

Table 11 show controllers cable-modem qos Field Descriptions

Field Description

Queue One of the four possible service flow queues that exist in the router.

SID Service identifier, a 14-bit integer assigned by the CMTS to each active

upstream service flow.

SID Type Type of SID:

• Primary—The service flow used for best-effort data traffic and MAC

maintenance messages.

• Secondary—Secondary static service flows that are created at

power-on provisioning for voice calls when dynamic SIDs are not

active.

• Dynamic—Secondary service flows that are created for on-demand

voice calls when using dynamic SIDs.

SFID Service flow identifier, a 32-bit integer assigned by the CMTS to each

service flow on the router.

TX Pkts Number of packets the router has transmitted on this service flow.

TX Bytes Number of bytes the router has transmitted on this service flow.

RX Pkts Number of packets the router has received on this service flow.

RX Bytes Number of bytes the router has received on this service flow.

Queue/SF Type Identifies the type of service flow being used for each queue.