H3C Technologies H3C S12500 Series Switches - Manual (Page 172)

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Configuring PIM common timers 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 hello interval. pim timer hello interval
Optional.
30 seconds by default.
4. Configure the maximum delay
between hello messages.
pim triggered-hello-delay interval
Optional.
5 seconds by default.
5. Configure the join/prune
interval.
pim timer join-prune interval
Optional.
60 seconds by default.
6. Configure the join/prune
timeout time.
pim holdtime join-prune interval
Optional.
210 seconds by default.
7. Configure assert timeout time. pim holdtime assert interval
Optional.
180 seconds by default.
NOTE:
If no special networking requirements are raised, use the default settings.
Configuring join/prune message sizes
A larger join/prune message size will result in loss of a larger amount of information if a message is lost;
with a reduced join/message size, the loss of a single message brings relatively minor impact.
By controlling the maximum number of (S, G) entries in a join/prune message, you can effectively reduce
the number of (S, G) entries sent per unit of time.
To configure join/prune message sizes:
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 maximum size
of a join/prune message.
jp-pkt-size packet-size
Optional.
8100 bytes by default.
4. Configure the maximum
number of (S, G) entries in a
join/prune message.
jp-queue-size queue-size
Optional.
1020 by default.
Configuring BFD for PIM
PIM uses hello messages to elect a DR for a multi-access network. The elected DR will be the only multicast
forwarder on the multi-access network.