EXP Computer S200 Manuel D’Utilisation

Bridging 

19

T0008-16F

Release 5.2M

With the 3Com Bridging Protocol option, you can use PathBuilder S200 series 
switches to connect remote LANs across a Wide Area Network (WAN), as shown in 
Figure 13.

Before you can use a PathBuilder S200 series switch as a bridge to connect LANs 
over a WAN, you must configure the following two parameters in the Node record 
for the bridge node. In most cases, use default values:

• Codex Proprietary Protocol ID

• LAN Connection Subaddress

You also need to configure the LAN Connection Table. Entries in this table are for 
the WAN Adapter and specify connections going across a wide area network, such as 
X.25, Frame Relay, or other proprietary protocols.

The Protocol Identifier (ID) is placed on the Call User Data field of the Call Request 
packet. This packet is generated by the Autocall used to establish a circuit for a 
bridge link. If the bridge link is not configured to initiate an autocall, then this 
configured value is matched with that found in an Incoming Call packet to determine 
if the call should be established.

To define the Codex Proprietary Protocol ID, select a value within the designated 
range. Normally you would not configure a value different from the default value. 
The only reason to use a different value is if the default value conflicts with one 
already in use.

It is recommended that the Protocol ID value in all network nodes be the same.

LAN

AAA

LAN
CCC

SVC Connectors

Bridge 1

Half

Bridge 2

Half

Bridge 1

Half

Bridge 3

Half

Bridge 2

Half

Bridge 3

Half

LAN

DDD

Codex Proprietary Protocol ID
LAN Connection Subaddress