H3C S7500E Series Command Manual page 815

Command Manual – Multicast
H3C S7500E Series Ethernet Switches
View
PIM view
Parameters
queue-size: Maximum number of (S, G) entries in a join/prune message, in the range of
1 to 4,096.
Description
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 system default.
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, holdtime join-prune, pim holdtime join-prune.
Examples
# Configure a join/prune messages to contain a maximum of 2,000 (S, G) entries.
<Sysname> system-view
[Sysname] pim
[Sysname-pim] jp-queue-size 2000
4.1.33 pim
Syntax
pim
undo pim
View
System view
Chapter 4 PIM Configuration Commands
4-33