Configuring Ipv6 Pim Common Timers - 3Com MSR 50 Series Configuration Manual

Configuring IPv6 PIM
Common Timers
To do...
Configure the priority for DR
election
Configure IPv6 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
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 equal to or 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.
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 IPv6 multicast forwarding.
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, and
resumes the forwarding state of the pruned interface when this timer times out.
When a router fails to receive subsequent IPv6 multicast data from the IPv6
multicast source S, the router will not immediately delete the corresponding (S, G)
entries; instead, it maintains (S, G) entries for a period of time, namely the IPv6
multicast source lifetime, before deleting the (S, G) entries.
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 assert timeout time holdtime assert interval
Configuring IPv6 PIM Common Information
Use the command...
pim ipv6 hello-option
dr-priority priority
pim ipv6 hello-option
holdtime interval
pim ipv6 hello-option
lan-delay interval
pim ipv6 hello-option
override-interval interval
pim ipv6 hello-option
neighbor-tracking
pim ipv6 require-genid
Use the command...
system-view
pim ipv6
timer hello interval
1261
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.
Remarks
-
-
Optional
30 seconds by default
Optional
180 seconds by default