HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 328

Configuring IPv6 PIM common timers

Page 328 highlights

Step 1. Enter system view. 2. Enter IPv6 PIM view. 3. Configure the prune delay interval. Command system-view pim ipv6 prune delay interval Remarks N/A N/A Optional. By default, the prune delay is not configured.. Configuring IPv6 PIM common timers IPv6 PIM routers discover IPv6 PIM neighbors and maintain IPv6 PIM neighboring relationships with other routers by periodically sending hello messages. After receiving a hello message, an IPv6 PIM router waits a random period, which is smaller than the maximum delay between hello messages, before sending 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. NOTE: If no special networking requirements are raised, use the default settings. Configuring IPv6 PIM common timers globally Step 1. Enter system view. 2. Enter IPv6 PIM view. Command system-view pim ipv6 3. Configure the hello interval. timer hello interval 4. Configure the join/prune interval. 5. Configure the join/prune timeout time. timer join-prune interval holdtime join-prune interval 6. Configure assert timeout time. holdtime assert interval 7. Configure the IPv6 multicast source lifetime. source-lifetime interval Remarks N/A N/A 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. 317

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Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IPv6 PIM view.
pim
ipv6
N/A
3.
Configure the prune delay
interval.
prune delay
interval
Optional.
By default, the prune delay is not
configured..
Configuring IPv6 PIM common timers
IPv6 PIM routers discover IPv6 PIM neighbors and maintain IPv6 PIM neighboring relationships with
other routers by periodically sending hello messages.
After receiving a hello message, an IPv6 PIM router waits a random period, which is smaller than the
maximum delay between hello messages, before sending 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.
NOTE:
If no special networking requirements are raised, use the default settings.
Configuring IPv6 PIM common timers globally
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IPv6 PIM view.
pim ipv6
N/A
3.
Configure the hello interval.
timer hello
interval
Optional.
30 seconds by default.
4.
Configure the join/prune
interval.
timer join-prune
interval
Optional.
60 seconds by default.
5.
Configure the join/prune
timeout time.
holdtime join-prune
interval
Optional.
210 seconds by default.
6.
Configure assert timeout time.
holdtime assert
interval
Optional.
180 seconds by default.
7.
Configure the IPv6 multicast
source lifetime.
source-lifetime
interval
Optional.
210 seconds by default.