register-header-checksum

Function

The register-header-checksum command configures devices to calculate the checksum based on the header of a Register message only.

The undo register-header-checksum command restores the default configuration.

By default, the checksum is calculated according to all the contents of a Register message.

Format

register-header-checksum

undo register-header-checksum

Parameters

None

Views

PIM view of public network instance or PIM view of VPN instance

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

By default, the source's DR calculates the checksum based on all fields in a Register message. After the register-header-checksum command is executed, the source's DR calculates the checksum based on the Register message header. This shortens the checksum calculation time and improves efficiency of encapsulating multicast data in Register messages.

Prerequisites

IP multicast routing has been enabled using the multicast routing-enable command.

Precautions

This command is valid for only PIM-SM.

Example

# Calculate the checksum based only on the header of a Register message PIM view of public network instance.

<HUAWEI> system-view
[HUAWEI] multicast routing-enable
[HUAWEI] pim
[HUAWEI-pim] register-header-checksum