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Remote Neighbors
Copyright © 2010, Juniper Networks, Inc.
The peers in a RIP adjacency use the configured values to negotiate the actual transmit
intervals for BFD packets.
You can use the minimum-transmit-interval keyword to specify the interval at which
the local peer proposes to transmit BFD control packets to the remote peer. The
default value is 300 milliseconds.
You can use the minimum-receive-interval keyword to specify the minimum interval
at which the local peer must receive BFD control packets from the remote peer. The
default value is 300 milliseconds.
You can use the minimum-interval keyword to specify the same value for both of
those intervals. Configuring a minimum interval has the same effect as configuring
the minimum receive interval and the minimum transmit interval to the same value.
The default value is 300 milliseconds.
You can use the multiplier keyword to specify the detection multiplier value. The
calculated BFD liveness detection interval can be different on each peer. The multiplier
value is roughly equivalent to the number of packets that can be missed before the
BFD session is declared to be down. The default value is 3.
For details on liveness detection negotiation, see JunosE IP Services Configuration Guide
.
You can change the BFD liveness detection parameters at any time without stopping
or restarting the existing session; BFD automatically adjusts to the new parameter
value. However, no changes to BFD parameters take place until the values resynchronize
with each peer.
Example
host1(config-if)#ip rip bfd-liveness-detection minimum-interval 800
or
host1(config-router)#address bfd-liveness-detection minimum-interval 800
Use the no version to disable BFD on the RIP interface.
See address bfd-liveness-detection
See ip rip bfd-liveness-detection
You can create RIP remote neighbors to enable the router to establish neighbor
adjacencies through unidirectional interfaces, such as MPLS tunnels, rather than the
standard practice of using the same interface for receipt and transmission of RIP packets.
The remote neighbor can be more than one hop away through intermediate routes that
are not running RIP. RIP uses the interface associated with the best route to the remote
neighbor to reach the neighbor. A best route to the neighbor must exist in the IP routing
table.
You must explicitly configure remote neighbors on the RIP routers to specify the remote
neighbor with which the router will form an adjacency and the source IP address the
router will use for RIP packets destined to its peer remote neighbor.
Chapter 4: Configuring RIP
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