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DES-7200 Configuration Guide Chapter 2 RIP
Configuration
2-11
2.2.13 Configuring RIP BFD
For details on BFD configuration, refer to BFD Configuration Guide.
2.2.14 Configuring Triggered RIP
Triggered RIP (TRIP) is a RIP extension on WAN (Wide Area Network), and is
mainly used on the on-demand link.
When TRIP is enabled, RIP protocol will no longer send periodic route updates
but only send route updates to WAN interface in the following cases:
When route update request message is received.
When RIP routing information has changed.
When interface state has changed.
Router restart.
Since the periodic RIP update is canceled, an acknowledgement and
retransmission mechanism is required to guarantee successful updates
transmission on WAN. RIP uses three new types of message which are identified
by the value of the command field in RIP header:
Update request (Type-9): Requests the peer device to send the routing
information needed.
Update response (Type-10): Contains the route updates requested by the
peer device.
Update Acknowledge (Type-11): Acknowledges the received update
responses, indicating that the route updates sent by peer device have been
received.