H3C LS-3100-52P-OVS-H3 Operation Manual - page 1170
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neighbor is lost or the upstream neighbor has changed. In this case, it triggers a join message for state
update.
If you disable join suppression (namely, enable neighbor tracking), the join suppression feature should
be disabled on all IPv6 PIM routers on a multi-access subnet; otherwise, the upstream router will fail to
explicitly track which downstream routers are joined to it.
Configuring hello options globally
Follow these steps to configure hello options globally:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter IPv6 PIM view
pim ipv6
—
Configure the priority for DR
election
hello-option dr-priority
priority
Optional
1 by default
Configure IPv6 PIM neighbor
timeout time
hello-option holdtime interval
Optional
105 seconds by default
Configure the prune delay time
(LAN-delay)
hello-option lan-delay interval
Optional
500 milliseconds by default
Configure the prune override
interval
hello-option override-interval
interval
Optional
2,500 milliseconds by default
Disable join suppression
hello-option
neighbor-tracking
Required
Enabled by default
Configuring hello options on an interface
Follow these steps to configure hello options on an interface:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
—
Configure the priority for DR
election
pim ipv6 hello-option
dr-priority priority
Optional
1 by default
Configure IPv6 PIM neighbor
timeout time
pim ipv6 hello-option
holdtime interval
Optional
105 seconds by default
Configure the prune delay time
(LAN-delay)
pim ipv6 hello-option
lan-delay interval
Optional
500 milliseconds by default
Configure the prune override
interval
pim ipv6 hello-option
override-interval interval
Optional
2,500 milliseconds by default
Disable join suppression
pim ipv6 hello-option
neighbor-tracking
Required
Enabled by default