H3C Technologies H3C S12500 Series Switches - Manual (Page 170)

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Step Command Remarks
2. Enter public network PIM view
or VPN instance PIM view. pim [ vpn-instance
vpn-instance-name ]
N/A
3. Configure the priority for DR
election.
hello-option dr-priority priority
Optional.
1 by default.
4. Configure PIM neighbor
timeout time.
hello-option holdtime interval
Optional.
105 seconds by default.
5. Configure the prune message
delay time (LAN-delay).
hello-option lan-delay interval
Optional.
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 time.
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.
2500 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
Configuring a prune delay on an upstream router on a shared network segment can make the upstream
router not perform the prune action immediately after it receives the 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 timer: