group (IPv4 SSM mapping view)

Function

The group command configures static SSM mapping source/group address mappings.

The undo group command deletes the static SSM mapping source/group address mappings.

By default, no static SSM mapping source/group address mapping is configured.

Format

group group-address { mask-length | mask } source source-address

undo group { group-address { mask-length | mask } | all }

undo group group-address { mask-length | mask } source source-address

Parameters

Parameter	Description	Value
group-address	Indicates the address of the multicast group.	The value ranges from 224.0.1.0 to 239.255.255.255, in dotted decimal notation.
mask-length	Indicates the mask length of a multicast group.	The value is an integer ranging from 4 to 32.
mask	Indicates the mask of a multicast group.	The value is in dotted decimal notation.
source source-address	Indicates the address of a multicast source.	The value is in dotted decimal notation.
all	Delete all static SSM mapping source/group address mappings.	-

Views

IPv4 SSM mapping view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mcast-base	write

Usage Guidelines

Usage Scenario

When users connected to different interfaces want to watch programs multicast by different multicast sources, run the group command to configure different SSM mappings for IPv4 policies of different interfaces. After that, IGMP packets received by different interfaces can be mapped to different multicast sources and users' requirements can be answered.

Prerequisites

SSM mapping and a corresponding policy have been enabled on the interface using the igmp ssm-mapping enable policy command.

Example

# Configure the static SSM mapping between the multicast source 10.10.1.1 and the multicast group 232.1.1.1/24 for the IGMP SSM mapping policy ssmmap1.

<HUAWEI> system-view
[~HUAWEI] ssm-mapping policy ssmmap1
[*HUAWEI-ssm-map-ssmmap1] group 232.1.1.1 24 source 10.10.1.1