Bridging Between Remote Sites - 3Com OfficeConnect Remote 510 User Manual

3com user guide remote 510, 520, 530

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Table Of Contents

Table of Contents

local LAN because it does not recognize the

destination station as local. However, if the

destination device is on the local LAN, once it replies

to the original source station, its own source address

is part of the data frame and it is learned by the

bridge and added to the address table.

By operating in this way, the amount of data

forwarded by the bridge is kept to a minimum.

Traffic that is for devices on the attached LAN is

rarely forwarded over the bridge.

A bridge can be configured to forget or age a

station's address after a period of inactivity, a facility

which is used to ensure that stations which are no

longer attached to the LAN, do not remain in the

bridge's address table, using up space that may be

required for other stations' addresses.

Some bridges allow address information to be

manually configured into the bridge, provided the

automatic learning facility is turned off, although this

will not normally prove necessary unless specific

traffic filtering is required.

Bridging and Routing Concepts

You can also configure a number of other features

to improve the performance and operation of the

OfficeConnect Remote. These include sophisticated

frame filtering techniques so that only certain types

of frame, or those associated with particular work

groups, are passed between specific segments.