Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - MULTICAST ROUTING CONFIGURATION GUIDE 2010-10-07 Configuration Manual page 247

ipv6 pim bfd-liveness-detection
Removing PIM
Copyright © 2010, Juniper Networks, Inc.
NOTE: Before the router can use the ipv6 pim bfd-liveness-detection
command, you must specify a BFD license key. To view an already configured
license, use the show license bfd command.
For general information about configuring and monitoring the BFD protocol, see Configuring
BFD in the JunosE IP Services Configuration Guide.
Use to enable BFD (bidirectional forwarding detection) and define BFD values to more
quickly detect PIM data path failures.
The neighbors in a PIM network 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 router proposes to transmit BFD control packets to its neighbors. The default
value is 300 milliseconds.
You can use the minimum-receive-interval keyword to specify the minimum interval
at which the local router must receive BFD control packets from its neighbors. 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 neighbor. 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 Negotiation of the BFD Liveness
Detection Interval in the 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 neighbor.
Example
host1(configif)#ipv6 pim bfd-liveness-detection minimum-interval 800
Use the no version to disable BFD on the PIM interface.
See ipv6 pim bfd-liveness-detection.
To remove PIM from a VR, use the no ipv6 router pim command.
Chapter 7: Configuring PIM for IPv6 Multicast
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