3Com MSR 30, MSR 50 manual Pim, Undo pim vpn-instance vpn-instance-name

1410 CHAPTER 90: PIM CONFIGURATION COMMANDS

Description Use the jp-queue-sizecommand to configure the maximum number of (S, G) entries in a join/prune message.

Use the undo jp-queue-sizecommand to restore the default setting.

By default, a join/prune messages contains a maximum of 1,020 (S, G) entries.

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 may contain a large number of groups, causing the message length to exceed the MTU of the network. As a result, the products that do not support fragmentation will drop the join/prune message.

■The (S, G) join/prune state hold time on the upstream device. If you configure a small queue size, the outgoing interface of the corresponding entry may have been pruned due to timeout before the last join/prune message in a queue reaches the upstream device.

Related commands: jp-pkt-size (PIM view), holdtime join-prune (PIM view), pim holdtime join-prune.

Example # Configure a join/prune messages to contain a maximum of 2,000 (S, G) entries in the public instance.

<Sysname> system-view

[Sysname] pim

[Sysname-pim] jp-queue-size 2000

pim

Syntax pim [ vpn-instancevpn-instance-name ]

undo pim [ vpn-instance vpn-instance-name]

View System view

Parameter vpn-instance-name: VPN instance name, a case sensitive string of up to 31 characters.

Description Use the pim command to enter public instance PIM view or VPN instance PIM view.

Use the undo pim command to remove all configurations performed in public instance PIM view or VPN instance PIM view.

IP multicast must be enabled on the device before this command can take effect.

Related command: multicast routing-enableon page 1341.