multicast boundary

Function

The multicast boundary command configures a multicast forwarding boundary on an interface.

The undo multicast boundary command deletes the configured multicast forwarding boundary from an interface.

By default, no multicast forwarding boundary is configured on an interface.

Format

multicast boundary group-address { mask | mask-length }

undo multicast boundary group-address { mask | mask-length }

undo multicast boundary all

Parameters

Parameter	Description	Value
group-address	Specifies a multicast group address.	The value is a string case-sensitive characters, spaces not supported.
mask	Specifies the mask of a multicast group address.	The mask is in dotted decimal notation.
mask-length	Specifies the mask length of a multicast group address.	The value is an integer ranging from 4 to 32.
all	Deletes all the multicast forwarding boundaries configured on an interface.	-

Views

100ge sub-interface view, 100GE interface view, 10GE sub-interface view, 10GE interface view, 200GE sub-interface view, 25GE sub-interface view, 25GE interface view, 400GE sub-interface view, 400GE interface view, 40GE sub-interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk sub-interface view, Eth-Trunk interface view, FlexE interface view, GE optical interface view, GE sub-interface view, GE interface view, GE electrical interface view, Global VE sub-interface view, Loopback interface view, MTI interface view, Mtunnel view, Tunnel interface view, VBDIF interface view, VE sub-interface view, VLANIF interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mcast-base	write

Usage Guidelines

Usage Scenario

The multicast boundary command is used to configure a multicast forwarding boundary to set the forwarding range for multicast data packets.

Prerequisites

The multicast routing-enable command is run in the public network instance view or the VPN instance view.

Configuration Impact

To configure multiple multicast forwarding boundaries for different multicast groups on an interface, run this command on the interface for several times.

Precautions

Assume that A and B are two multicast group ranges to be configured with multicast forwarding boundaries, and B is a subset of A. If A is first configured on an interface, B cannot be configured. If B is configured on the interface first and then A is configured, the configuration of B is substituted by that of A.

Common tunnel interfaces do not support this command. Only the GRE Tunnel interface supports this command.

Example

# Configure GE 0/1/0 as a multicast forwarding boundary for group 239.2.0.0/16.

<HUAWEI> system-view
[~HUAWEI] multicast routing-enable
[*HUAWEI] interfacebu GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] undo portswitch
[*HUAWEI-GigabitEthernet0/1/0] multicast boundary 239.2.0.0 16