3com MSR 20-20 참조 매뉴얼

C

HAPTER

 90: PIM C

ONFIGURATION

 C

OMMANDS

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

Use the undo jp-queue-size command 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.

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

# 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 [ vpn-instance vpn-instance-name ]

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

System view

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

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.