Configuring Layer 2 Multicast Ssm Mapping; Establishing The Configuration Task - Huawei Quidway S2700 Series Configuration Manual

Quidway S2700 Series Ethernet Switches
Configuration Guide - Multicast
Procedure
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Example
<Quidway> display l2-multicast forwarding-table vlan 10
VLAN ID : 10, Forwarding Mode : IP
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Total Group(s) : 3

1.5 Configuring Layer 2 Multicast SSM Mapping

This section describes how to configure the Layer 2 multicast SSM mapping function.

1.5.1 Establishing the Configuration Task

Applicable Environment
If the switch connected to user hosts is configured with IGMPv3, SSM mapping needs to be
configured on the switch to map the multicast group addresses not in the SSM group to the
specified source addresses.
When the switch running IGMPv3 receives an IGMPv2 packet whose address is in the SSM
group, the SSM mapping function can automatically map the address of the packet to the
specified source.
Pre-configuration Tasks
Before configuring SSM mapping, complete the following task:
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Data Preparation
To configure SSM mapping, you need the following data.
No.
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2
Issue 01 (2011-07-15)
Run the display l2-multicast forwarding-table vlan vlan-id [ source-address source-
address group-address group-address ] command to check the multicast forwarding table
of a VLAN.
(Source, Group)
(*, 225.1.1.1)
(*, 225.1.1.2)
(*, 225.1.1.3)
Enabling global IGMP snooping
Data
(Optional) ACL rule
(Optional) SSM policy
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Interface
Router-port GigabitEthernet0/0/1
GigabitEthernet0/0/1
GigabitEthernet0/0/2
GigabitEthernet0/0/1
GigabitEthernet0/0/2
GigabitEthernet0/0/1
GigabitEthernet0/0/2
1 IGMP Snooping Configuration
Out-Vlan
10
10
10
10
10
10
10
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