Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010 Configuration Manual page 511

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For detailed sample configurations that include bridge interfaces, see "Configuration
Examples" on page 488.
bridge-group
From Global Configuration mode, select the ATM, Fast Ethernet, Gigabit Ethernet,
or 10-Gigabit Ethernet interface or subinterface that you want to assign to the
bridge group.
Assign the interface or subinterface to an existing bridge group to create the
bridge interface.
(Optional) Configure the bridge group interface as a trunk (server) interface.
(Optional) Enable SNMP link status processing for the bridge group interface.
(Optional) Set the maximum number of dynamic MAC addresses that the bridge
group interface can learn.
Use to assign a bridge interface to an existing bridge group.
To create a subscriber (client) bridge group interface, which is the default, you
must supply the alphanumeric name of the bridge group (specified in the bridge
command) to which you want to assign the interface.
Optionally, you can also choose one of the following keywords:
subscriber-trunk Creates a trunk (server) bridge group interface
snmp-trap link-status Enables SNMP link status processing for the specified
interface in the specified bridge group; SNMP link status processing is disabled
by default
learn addressCount Sets the maximum number of MAC addresses that the
bridge group interface can learn, where addressCount is an integer in the
range 0–64000. A value of 0 indicates that an individual bridge group
interface can learn an unlimited number of MAC addresses, up to the
maximum number that the router supports.
Example 1 Creates a subscriber (client) bridge group interface for a bridge
group named westford02 with SNMP link status processing enabled
host1(config-subif)#bridge-group westford02 snmp-trap link-status
Example 2 Sets the maximum number of learned MAC addresses on the
westford02 bridge interface to 1000
host1(config-subif)#bridge-group westford02 learn 1000
Example 3 Creates a trunk (server) interface for a bridge group named
westford03
host1(config-subif)#bridge-group westford03 subscriber-trunk
Use the no version to remove the interface from the bridge group and to restore
the default value for the keyword you specified.
See bridge-group.
Chapter 15: Configuring Transparent Bridging
Configuration Tasks
479