162
Step
Command
Remarks
(LAN-delay).
500 milliseconds by default.
6.
Configure the prune override
interval.
hello-option override-interval
interval
Optional.
2500 milliseconds by default.
7.
Disable join suppression.
hello-option neighbor-tracking
Enabled by default.
Configuring hello options on an interface
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Configure the priority for DR
election.
pim hello-option dr-priority
priority
Optional.
1 by default.
4.
Configure PIM neighbor
timeout timer.
pim hello-option holdtime
interval
Optional.
105 seconds by default.
5.
Configure the prune
message delay time
(LAN-delay).
pim hello-option lan-delay
interval
Optional.
500 milliseconds by default.
6.
Configure the prune override
interval.
pim hello-option
override-interval
interval
Optional.
2,500 milliseconds by default.
7.
Disable join suppression.
pim hello-option
neighbor-tracking
Enabled by default.
8.
Configure the interface to
reject hello messages
without a generation ID.
pim require-genid
By default, hello messages
without Generation_ID are
accepted.
Configuring the prune delay
An upstream router on a shared subnet can be configured with a prune delay interval. With this
configuration, the upstream router does not perform the prune action immediately after it receives a
prune message from its downstream router. Instead, the upstream router maintains the current
forwarding state for a period of time that the prune delay interval defines. In this period, if the
upstream router receives a join message from the downstream router, it cancels the prune action.
Otherwise, it performs the prune action.
To configure the prune delay time:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter public network PIM
view or VPN instance PIM
view.
pim
[
vpn-instance
vpn-instance-name
]
N/A
3.
Configure the prune delay
interval.
prune delay
interval
Optional.
By default, the prune delay time is
not configured.
