HP A5500 SI Switch Series Configuration Manual page 385

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
Configuring IPv6 PIM common timers on an interface
Follow these steps to configure IPv6 PIM common timers on an interface:
To do...
Enter system view
Enter interface view
Configure the hello interval
Configure the maximum delay
between hello messages
Configure the join/prune interval
Configure the join/prune timeout
time
Configure assert timeout time
Use the command...
system-view
pim ipv6
timer hello interval
timer join-prune interval
holdtime join-prune interval
holdtime assert interval
source-lifetime interval
Use the command...
system-view
interface interface-type interface-
number
pim ipv6 timer hello interval
pim ipv6 triggered-hello-delay
interval
pim ipv6 timer join-prune interval
pim ipv6 holdtime join-prune
interval
pim ipv6 holdtime assert interval
373
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
Remarks
—
—
Optional
30 seconds by default
Optional
5 seconds by default
Optional
60 seconds by default
Optional
210 seconds by default
Optional
180 seconds by default