You use the System-WAN-Configure Frame Relay screens to configure the frame relay parameters.
Each physical WAN interface may be configured to run either PPP or frame relay as a link protocol, but not both simultaneously. However, in a Contivity gateway with multiple WAN interfaces, one interface may run PPP and another interface may run frame relay. PPP is the default link protocol.
Frame relay on the Contivity gateway acts as a UNI device; it does not support NNI.
Each WAN link can be configured to run either PPP (the default) or frame relay.
Each frame relay link can be a switched (default) or direct connection.
The gateway type is set on a per-link basis. The possible setting are ITU-T and ANSI. This determines both the LMI format and the FECN/BECN processing. The LMI Poll Interval Timer and Poll Interval Counter may be configured when LMI is enabled.
Note:
Only ~1500 byte (Ethernet maximum) sized frames are supported. Any larger frames will be discarded as excessively long frames. This is an implementation limitation, not a protocol limitation.