Configuring Pim Common Timers - H3C S3610-28P Operation Manual

Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
Enter system view
Enter Ethernet port view
Configure the priority for
DR election
Configure PIM neighbor
timeout time
Configure the prune delay
time (LAN-delay)
Configure the prune
override interval
Disable join suppression
Configure the interface to
reject hello messages
without a generation ID

6.5.5 Configuring PIM Common Timers

PIM routers discover PIM neighbors and maintain PIM neighboring relationships with
other routers by periodically sending out hello messages.
Upon receiving a hello message, a PIM router waits a random period, which is equal to
or smaller than the maximum delay between hello messages, before sending out a
hello message. This avoids collisions that occur when multiple PIM routers send hello
messages simultaneously.
Any router that has lost assert election will prune its downstream interface and maintain
the assert state for a period of time. When the assert state times out, the assert losers
will resume multicast forwarding.
A PIM router periodically sends join/prune messages to its upstream for state update. A
join/prune message contains the join/prune timeout time. The upstream router sets a
join/prune timeout timer for each pruned downstream interface, and resumes the
forwarding state of the pruned interface when this timer times out.
When a router fails to receive subsequent multicast data from the multicast source S,
the router will not immediately delete the corresponding (S, G) entries; instead, it
To do...
system-view
interface interface-type
interface-number
pim hello-option
dr-priority priority
pim hello-option
holdtime interval
pim hello-option
lan-delay interval
pim hello-option
override-interval interval
pim hello-option
neighbor-tracking
pim require-genid
Use the command...
6-36
Chapter 6 PIM Configuration
Remarks
—
—
Optional
1 by default
Optional
105 seconds by default
Optional
500 milliseconds by
default
Optional
2,500 milliseconds by
default
Optional
Enabled by default
Optional
By default, hello
messages without
Generation_ID are
accepted