The frame_relay node type performs encapsulation, de-encapsulation, and multiplexing of packets using the frame relay protocol. It supports up to 1024 DLCIs. The LMI protocol is handled by a separate node type (see ng_lmi(4)).
The downstream hook should be connected to the synchronous line, i.e., the switch. Then hooks dlci0, dlci1, through dlci1023 are available to connect to each of the DLCI channels.
This node type supports the following hooks: