multicast-nat ttl-decrease disable

Function

The multicast-nat ttl-decrease disable command disables TTL decrease for multicast packets on a device, so that the TTL value of multicast packets does not decrease by 1 when the multicast packets pass through the device.

The undo multicast-nat ttl-decrease disable command enables TTL decrease for multicast packets on a device, so that the TTL value of multicast packets decreases by 1 when the multicast packets pass through the device.

By default, TTL decrease is enabled for multicast packets.

This command is supported only on the NetEngine 8000 F1A.

Format

multicast-nat ttl-decrease disable

undo multicast-nat ttl-decrease disable

Parameters

None

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
forwarding	write

Usage Guidelines

Usage Scenario

In multicast NAT, input and output multicast streams travel through different interfaces. Normally, the TTL value of multicast packets decreases by 1 after the packets pass through an outbound interface. If you do not want to decrease the TTL value of multicast packets, run the multicast-nat ttl-decrease disable command to disable TTL decrease for multicast packets.

Prerequisites

Multicast NAT has been globally enabled using the multicast-nat enable command.

Example

# Disable TTL decrease for multicast packets.

<HUAWEI> system-view
[~HUAWEI] multicast-nat enable
[*HUAWEI] multicast-nat ttl-decrease disable