Configuring Common Pim Timers - HP MSR1002-4 Configuration Manual

Step
4. Set the neighbor lifetime.
5. Set
propagation delay.
6. Set the override interval.
7. Enable neighbor tracking.
8. Enable
messages
Generation ID option.

Configuring common PIM timers

IMPORTANT:
To prevent the upstream neighbors from aging out, you must configure the interval for sending
join/prune messages to be less than the joined/pruned state holdtime timer.
The following are common timers in PIM:
•
Hello interval—Interval at which a PIM router sends hello messages to discover PIM
neighbors, and maintain PIM neighbor relationship.
•
Triggered hello delay—Maximum delay for sending a hello message to avoid collisions
caused by simultaneous hello messages. After receiving a hello message, a PIM router waits
for a random time before sending a hello message. This random time is in the range of 0 to the
triggered hello delay.
•
Join/Prune interval—Interval at which a PIM router sends join/prune messages to its
upstream routers for state update.
•
Joined/Pruned state holdtime—Time for which a PIM router keeps the joined/pruned state for
the downstream interfaces. This joined/pruned state holdtime is specified in a join/prune
message.
•
Multicast source lifetime—Lifetime that a PIM router maintains for a multicast source. If a
router does not receive subsequent multicast data from the multicast source S when the timer
expires, it deletes the (S, G) entry for the multicast source.
You can configure common PIM timers for all interfaces in PIM view or for the current interface in
interface view. The configuration made in interface view takes priority over the configuration made in
PIM view.
TIP:
As a best practice, use the default settings for a network without special requirements.
Configuring common PIM timers globally
Step
1. Enter system view.
2. Enter PIM view.
3. Set the hello interval.
the PIM message
dropping hello
without the
Command
pim hello-option holdtime time
pim hello-option
delay
pim hello-option
override-interval interval
pim hello-option
neighbor-tracking
pim require-genid
Command
system-view
pim [ vpn-instance
vpn-instance-name ]
timer hello interval
121
Remarks
The default
seconds.
lan-delay The default
milliseconds.
The default
milliseconds.
By default, neighbor tracking is
disabled.
By default, an interface accepts
hello messages
Generation ID option.
Remarks
N/A
N/A
The default setting is 30 seconds.
setting is 105
setting is 500
setting is 2500
without the