Compatible Systems 5.4 - Manual (Page 168)

162 Chapter 10 - WAN Link Protocols
Frame Relay Configuration Dialog Box
Frame Relay Configuration Dialog Box
v Note: If you need more information about the Frame Relay protocol, see
“Frame Relay 101" in the Appendices to this manual.
You can access the Frame Relay Configuration Dialog Box by selecting
Frame Relay Link from the Link Type pulldown in the Link Configuration:
WAN Dialog Box (under WAN/Link Configuration), and then clicking on
the Frame Relay button at the bottom of the dialog box.
> Maintenance Protocol
This checkbox controls which Frame Relay maintenance protocol is used on
this WAN interface. The maintenance protocol is used to send link status and
virtual circuit information between Frame Relay switches and other devices
(such as routers) that communicate with them.
• ANSI Annex D is the most commonly used standard in the United
States.
• CCITT Annex A is a European standard.
• LMI was developed by a vendor consortium and is also known as the
“consortium” management interface specification. It is still used by some
carriers in the United States.
• Static allows the emulation of a Frame Relay network over WAN broad-
cast media. Examples include satellite ground stations and multipoint
packet radio installations. Do not use this setting for normal Frame Relay
switch communications.
v Note: Your Frame Relay carrier may or may not give you a choice of
management protocols. If you are given a choice, we suggest Annex D since
it is the most widely used.