Справочное Руководство для 3com S7906E
1-28
Default Level
2: System level
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:
z
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.
z
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 ipv6
[Sysname-pim6] jp-queue-size 2000
pim ipv6
Syntax
pim ipv6
undo pim ipv6
View
System view
Default Level
2: System level
Parameters
None
Description
Use the pim ipv6 command to enter IPv6 PIM view.
Use the undo pim ipv6 command to remove all configurations performed in IPv6 PIM view.