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Chapter 30
Configuring the WAN resources
A WAN (wide area network) is a geographically dispersed data communication network. The term
WAN distinguishes a broader data communication structure from a local area network (LAN).
This section includes information about:
•
"Permanent WAN connection" on page 673
•
"Viewing WAN resources" on page 674
•
"Setting global WAN parameters" on page 675
•
"Configuring the WAN interfaces" on page 677
A WAN can be privately owned or rented, but is usually part of public (shared user) networks.
Business Communications Manager can be equipped with a WAN interface card with two serial
synchronous ports (Europe), or a WAN interface card with one T1 port (with integrated CSU) and
one serial synchronous port (North America). Both ports on the WAN interface card (WAN1 and
WAN2) can be active at the same time. The serial synchronous port supports the following:
•
North America: V.35
•
Europe: V.35 (Upper Sync Port) and X.21 (Lower Sync Port)
•
maximum line speed: 8 Mbit/sec.
Business Communications Manager provides primary and backup WAN links through dial-up
connections using a V.90 modem or ISDN BRI/PRI. For information on V.90 modem or ISDN
connections, see
continuous WAN connection status monitoring. For information about Net Link Manager, see
"Configuring Net Link Manager" on page
Permanent WAN connection
The permanent WAN connection is normally a dedicated network adapter. The permanent link
supports frame relay or Point-to-Point protocol (PPP) at the link layer. The link protocol you use
depends on the existing network or on the service you buy from your Internet service provider.
The two ports provided by the WAN interface card can be independently configured to run frame
relay or PPP.
Frame Relay
Business Communications Manager supports frame relay in group mode and direct mode. In group
mode, for each physical port (serial sync or T1 port), there is one IP address for all PVCs
(permanent virtual circuits).
"Configuring the Dial Up resources" on page
689. Net Link Manager provides
733.
Programming Operations Guide
673
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