User guide

BRIDGE Functional Differences in Product Categories

iMG/RG Software Reference Manual (Switching)

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• If there already exists an Dynamic entry with MAC address that matches the source MAC address, it

updates the last seen time and the source port for the entry.

• If there exists a Static entry with MAC address that matches the source MAC address, it updates entry’s

source port field with the received port.

2.3.3 Functional Differences in Product Categories

A key difference between the different models is the incorporation of a VLAN Aware Bridge implementation.

As a part of this enhancement - additional flexibility was added to support MAC Filtering. Note that some com-

mands described here - presume support for multiple VLANs w/in the Bridge. For more information on the

VLAN specific functions - please see the VLAN section.

It is not often that a user would need to manipulate the forwarding databases. This capability is there...but not

anticipated to be widely utilized.

Note 1) On these devices - Multicast traffic is forwarded to all ports with no options for filtering/restriction.

Note 2) For these devices there is only one Forwarding DataBase - the DefaultFDB - for other devices - it is

possible to create multiple Forwarding Databases via the Bridge Add VLAN command.

Note 3) Dynamic Destination MAC based forwarding is the only mechanism supported here. The Bridge learns

which MAC addresses come from which ports - and forwards packets with that MAC as a Destination MAC to

those ports. There is no support for static configuration of MAC Addresses.

2.3.4 Bridge command reference

This section describes the commands available for Bridge.

TABLE 2-3 Functional Mapping for Bridge

Commands

Fiber

Modular

ADSL

Port based forwarding XXXX XX

Traffic Prioritization XXXX XX

Multicast Traffic 1X1XX X 1 XX

Learning X XXXX X X X X