User`s guide

USER’S GUIDE

202 CyberSWITCH

SPANNING TREE PROTOCOL

CONFIGURING SPANNING TREE PROTOCOL

USING CFGEDIT

1. Select Spanning Tree from the Bridging menu.

2. Enter the bridge age time.

SPANNING TREE PROTOCOL CONFIGURATION ELEMENTS

BRIDGE AGE TIME

If you are using bridge dial out, you may wish to increase this value to prevent the connection from

aging out before the call is made.

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.

NRESTRICTED 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.