Manual Reference Pages - NG_FRAME_RELAY (4)
- frame relay netgraph node type
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
hook should be connected to the synchronous line, i.e., the switch.
are available to connect to each of the DLCI channels.
This node type supports the following hooks:
The connection to the synchronous line.
Here X is a decimal number from 0 to 1023.
This hook corresponds
to the DLCI X frame relay virtual channel.
This node type supports only the generic control messages.
This node shuts down upon receipt of a
control message, or when all hooks have been disconnected.
node type was implemented in
.Fx 4.0 .
.An Julian Elischer Aq julian@FreeBSD.org
Technically, frames on DLCI X should not be transmitted to the switch
until the LMI protocol entity on both ends has configured DLCI X as active.
node type ignores this restriction, and will always pass data received
on a DLCI hook to
Instead, it should query the LMI node first.
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