Configuring Ipv6 Pim Common Timers - HP 4800G Series Configuration Manual

To do...
Configure the interface to reject
hello messages without a
generation ID

Configuring IPv6 PIM Common Timers

IPv6 PIM routers discover IPv6 PIM neighbors and maintain IPv6 PIM neighboring relationships with
other routers by periodically sending out hello messages.
Upon receiving a hello message, an IPv6 PIM router waits a random period, which is smaller than the
maximum delay between hello messages, before sending out a hello message. This avoids collisions
that occur when multiple IPv6 PIM routers send hello messages simultaneously.
An IPv6 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.
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 loser will resume IPv6 multicast
forwarding.
When a router fails to receive subsequent IPv6 multicast data from the IPv6 multicast source S, the
router does not immediately delete the corresponding (S, G) entry; instead, it maintains the (S, G) entry
for a period of time, namely the IPv6 multicast source lifetime, before deleting the (S, G) entry.
Configuring IPv6 PIM common timers globally
Follow these steps to configure IPv6 PIM common timers globally:
To do...
Enter system view
Enter IPv6 PIM view
Configure the hello interval
Configure the join/prune
interval
Configure the join/prune
timeout time
Configure assert timeout time
Configure the IPv6 multicast
source lifetime
Use the command...
pim ipv6 require-genid
Use the command...
system-view
pim ipv6
timer hello interval
timer join-prune interval
holdtime join-prune interval
holdtime assert interval
source-lifetime interval
1-31
Remarks
Required
By default, hello messages
without Generation_ID are
accepted.
Remarks
—
—
Optional
30 seconds by default
Optional
60 seconds by default
Optional
210 seconds by default
Optional
180 seconds by default
Optional
210 seconds by default