multicast cpu-forward disable

Function

The multicast cpu-forward disable command disables soft forwarding for multicast packets.

The undo multicast cpu-forward disable command restores the default configuration.

Format

multicast cpu-forward disable

undo multicast cpu-forward disable

Parameters

None.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

By default, soft forwarding for multicast packets is enabled.

In most cases,

The FW forwards packets based on software before the hardware forwarding is completed. After that, the forwards packets based on hardware.
An FCC-enabled device can quickly forward packets based on hardware, not software.

When the FW works together with an FCC-based device, soft forwarding for multicast packets must be disabled on the FW to prevent packet loss and disorder caused by the low forwarding speed and first packet cache mechanism of soft forwarding.

Example

# Disable soft forwarding for multicast packets.

<sysname> system-view
[sysname] multicast cpu-forward disable