Specifying A Bridging Cable Modem Through The Cli - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide
The Bridge Mode TLV is received by the BSR when the cable modem makes a
registration request.
Note: Any VLAN association specified in the Bridge Mode TLV can be
overridden with the bridge cable
Bridging Cable Modem through the
The Motorola Bridge Mode TLV is supported by all DOCSIS standard cable
modems. A bridging cable modem need not be manufactured by Motorola.
An MSO must change the total length and subtype 3 length values specified
in the TLV file based on the number of characters in the file's VLAN Value
field. The VLAN Value field can be from 6-9 characters.
Using the TLV to define the VLAN ID will require that every cable modem
have a unique TLV file. The BSR disallows registration of a modem bridging
to a VLAN when another modem on the same CMTS is already registered as
bridging to that VLAN. Although the BSR does not disallow registration of
CMs on different CMTSs with the same bridging VLAN, operation is
unspecified. This operational configuration error is indicated in the show
bridge vlan command.
VLAN ID 1 is reserved for use by the attached Layer 2 switch/router for
management purposes and as the default "native" VLAN for that equipment.
VLAN ID 1 may not be configured on the BSR for Ethernet port tagged
routing or for cable modem Layer 2 bridging.

Specifying a Bridging Cable Modem through the CLI

The Command Line Interface (CLI) can be used to associate a cable modem's traffic
to a specified VLAN by specifying the cable modem as the Bridging CM. Follow
these steps to specify a cable modem as the Bridging CM:
1. Use the bridge cable modem command to associate a particular cable modem's
13-8
traffic to a specified VLAN, as follows:
bridge cable modem <mac> <2-4094>
MOT(config)#
where:
mac is the cable modem's MAC Address in the form xxxx.xxxx.xxxx.
2-4094 is the VLAN ID number.
modem command. See
CLI.
MGBI
Release 1.0
Specifying a
526360-001-00 Rev. B