Enterasys Networks CSX6000, CSX5500, CSX7000 manual Bridge Mode of Operation

USER’S GUIDE

BRIDGE MODE OF OPERATION

CONFIGURING THE BRIDGE MODE OF OPERATION

USING CFGEDIT

1.Select Mode of Operation from the Bridging menu.

2.Select the bridge mode of operation. The unrestricted bridge mode is the default.

BRIDGE MODE OF OPERATION CONFIGURATION ELEMENTS

BRIDGE MODE

The forwarding method that the bridge will use to distribute LAN packets to the remote sites and to the LAN ports of the CyberSWITCH. The default value is unrestricted bridging.

BRIDGE MODE OF OPERATION BACKGROUND INFORMATION

Selecting the bridge mode of operation allows you to determine the forwarding method that the bridge will use to distribute LAN packets to the remote sites and to the LAN ports of the system. The two possible modes of operation are the Unrestricted Bridge Mode and the Restricted Bridge Mode.

Note: If the mode of operation is changed, any previously defined filters will be deleted. Any previously defined protocol definitions will remain unchanged.

The following two sections provide further details for each bridge mode of operation.

UNRESTRICTED BRIDGE MODE

In general, Unrestricted Mode forwards all packets, unless specified otherwise through a bridge filter. If the Unrestricted Bridge Mode is selected, the following packet forward possibilities exist:

•If the packet matches a discard filter, it is discarded.

•If the packet matches a connect filter, it is connected and forwarded to the members of the dis- tribution list.

•If the packet matches no filter, the packet is forwarded. The specific forwarding action depends upon whether or not the destination is known. (See following descriptions.)

No Filter Match - Destination Known

If the destination is known and the corresponding device is on the Known Connect List, the connection is made and the packet is then forwarded to the specific destination.

If the device is not on the Known Connect list, the packet is sent to all current connections.

No Filter Match - Destination Unknown The packet is sent to all current connections.

268 CyberSWITCH