H3C Technologies H3C S7500E Series Switches - Manual (Page 386)

13-35
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... Use the command... Remarks
Enter system view system-view —
Enter IPv6 PIM view pim ipv6 —
Configure the hello interval timer hello interval
Optional
30 seconds by default
Configure the join/prune interval timer join-prune interval
Optional
60 seconds by default
Configure the join/prune timeout
time
holdtime join-prune interval
Optional
210 seconds by default
Configure assert timeout time holdtime assert interval
Optional
180 seconds by default
Configure the IPv6 multicast
source lifetime
source-lifetime interval
Optional
210 seconds by default
Configuring IPv6 PIM common timers on an interface
Follow these steps to configure IPv6 PIM common timers on an interface:
To do... Use the command... Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Configure the hello interval pim ipv6 timer hello interval
Optional
30 seconds by default
Configure the maximum delay
between hello messages
pim ipv6 triggered-hello-delay
interval
Optional
5 seconds by default