Configuring Common Ipv6 Pim Timers - HP 5920 series Configuration Manual

Step
3. Set the DR priority.
4. Set the neighbor lifetime.
5. Set the prune delay.
6. Set the override interval.
7. Enable the neighbor tracking
function.
8. Enable dropping hello
messages without the
Generation ID option.

Configuring common IPv6 PIM timers

IPv6 PIM routers periodically send hello messages to discover IPv6 PIM neighbors, and maintain IPv6
PIM neighbor relationship.
After receiving a hello message, an IPv6 PIM router waits for a random time period before sending a
hello message. This random time period is smaller than the maximum delay for sending hello messages,
and it can avoids collisions that might occur when multiple IPv6 PIM routers send hello messages
simultaneously.
An IPv6 PIM router periodically sends join/prune messages to its upstream routers for state update. A
join/prune message contains the joined/pruned state timeout value, and an upstream router uses this
value to set a timeout timer for the joined state or pruned state of the downstream interfaces.
When a router fails to receive subsequent IPv6 multicast data from the IPv6 multicast source S, the router
does not immediately remove 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.
You can configure common IPv6 PIM timers in IPv6 PIM view or interface view. The configurations made
in IPv6 PIM view are effective on all interfaces and the configurations made in interface view are effective
on only the current interface. If you configure hello message options in both IPv6 PIM view and interface
view, the configuration in interface view always takes precedence.
TIP:
For a network without special requirements, HP recommends using the defaults.
Configuring common IPv6 PIM timers globally
Step
1. Enter system view.
2. Enter IPv6 PIM view.
3. Set the interval to send hello
messages.
Command
ipv6 pim hello-option dr-priority
priority
ipv6 pim hello-option holdtime
time
ipv6 pim hello-option lan-delay
delay
ipv6 pim hello-option
override-interval interval
ipv6 pim hello-option
neighbor-tracking
ipv6 pim require-genid
Command
system-view
ipv6 pim
timer hello interval
156
Remarks
By default, the DR priority is 1.
By default, the neighbor lifetime is
105 seconds.
By default, the prune delay is 500
milliseconds.
By default, the override interval is
2500 milliseconds.
By default, the neighbor tracking
function is disabled.
By default, an interface accepts
hello message without the
Generation ID option.
Remarks
N/A
N/A
By default, the interval to send
hello messages is 30 seconds.