R3303-HP HSR6800 Routers IP Multicast Command Reference

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Usage guidelines
When you use this command, take the following into account:
• The size of the forwarding table. In a network that does not support packet fragmentation, if you
configure a large queue size, a join/prune message might contain a large number of groups. This
might cause the message length to exceed the MTU of the network. As a result, the products that do
not support fragmentation drop the join/prune message.
• The (S, G) join/prune timeout timer on the upstream device. If you configure a small queue size, the
outgoing interface of the corresponding entry might have been pruned because of to timeout before
the last join/prune message in a queue reaches the upstream device.
Examples
# Configure each join/prune message to contain a maximum of 2000 (S, G) entries on the public
network.
<Sysname> system-view
[Sysname] pim
[Sysname-pim] jp-queue-size 2000
# Configure each join/prune message to contain a maximum of 2000 (S, G) entries in VPN instance
mvpn.
<Sysname> system-view
[Sysname] pim vpn-instance mvpn
[Sysname-pim-mvpn] jp-queue-size 2000
Related commands
• holdtime join-prune
• jp-pkt-size
• pim holdtime join-prune
pim
Use pim to enter public network PIM view or VPN instance PIM view.
Use undo pim to remove all configurations in public network PIM view or VPN instance PIM view.
Syntax
pim [ vpn-instance vpn-instance-name ]
undo pim [ vpn-instance vpn-instance-name ]
Views
System view
Default command level
2: System level
Parameters
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN by its name, a case-sensitive string of 1 to 31
characters. If this option is not specified, the command applies to the public network.
Usage guidelines
IP multicast routing must be enabled in the corresponding instance before this command can take effect.