join-prune max-packet-length (IPv6)

Function

The join-prune max-packet-length command sets the maximum size of each Join/Prune message to be sent.

The undo join-prune max-packet-length command restores the default maximum size of each Join/Prune message to be sent.

By default, the maximum length of Join/Prune message sent by is 8100 bytes.

Format

join-prune max-packet-length packet-length

undo join-prune max-packet-length

Parameters

Parameter	Description	Value
packet-length	Specifies the maximum size of each PIM-SM Join/Prune message to be sent.	The value is an integer that ranges from 100 to 64000, in bytes.

Views

PIM-IPv6 view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If the peer device has low performance and takes a long time to process a large Join/Prune message carrying a lot of (S, G) entries, the maximum size of each Join/Prune message can be reduced to relieve the burden on the peer device.

Prerequisites

IPv6 multicast routing has been enabled globally using the multicast ipv6 routing-enable command in the system view.

Precautions

This command is valid for PIM-SM (IPv6) and PIM-DM (IPv6).

If the maximum size specified in the join-prune max-packet-length command is greater than the interface MTU, the maximum size of each message to be sent is equal to the interface MTU.

Example

# Set the maximum size of each Join/Prune message to be sent to 2100 bytes.

<HUAWEI> system-view
[HUAWEI] multicast ipv6 routing-enable
[HUAWEI] pim-ipv6
[HUAWEI-pim6] join-prune max-packet-length 2100