Huawei Quidway S5600 Series Operation Manual page 449

Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
Figure 6-2 Diagram for IGMP Proxy
Figure 6-2Figure 6-2 is an IGMP Proxy diagram for a leaf network.
Configure Switch B as follows:
Enable multicast routing on VLAN interface 1 and VLAN interface 2, and then
configure the PIM protocol on it. And configure the IGMP protocol on
VLAN-interface 1 at the same time.
On VLAN interface 2, configure VLAN interface 1 as the outbound IGMP Proxy
interface to external networks. You must enable the IGMP protocol on the
interface first, and then configure the igmp proxy command.
Configure Switch A as follows:
Enable multicast routing and configure the IGMP protocol on VLAN interface 1.
Configure the pim neighbor-policy command to filter PIM neighbors in the
network segment 33.33.33.0/24. That is, Switch A does not consider Switch B as
its PIM neighbor.
In this case, when Switch B of leaf network receives from VLAN interface 2 an IGMP
join or IGMP leave message sent by the host, it will change the source address of the
IGMP information to the address of VLAN interface 1: 33.33.33.2 and send the
information to VLAN interface 1 of Switch A. For Switch A, this works as if there is a
host directly connected to VLAN interface 1.
Similarly, when Switch B receives the IGMP general group or group-specific query
message from the Layer 3 Switch A, it will also change the source address of the query
message to the IP address of VLAN interface 2: 22.22.22.1 and send the message from
VLAN interface 2.
Switch A Switch A Switch A Switch A
33.33.33.1 33.33.33.1 33.33.33.1 33.33.33.1
VLAN-interface 1 VLAN-interface 1
General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information General group/ Group -Specific Query information
33.33.33.2 33.33.33.2 33.33.33.2 33.33.33.2
VLAN-interface 1 VLAN-interface 1
VLAN-interface 2 VLAN-interface 2
Switch B Switch B Switch B Switch B
IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP IGMP join/ IGMP
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Huawei Technologies Proprietary
6-5
Chapter 6 IGMP Configuration
General group/ Group-Specific Query message General group/ Group-Specific Query message General group/ Group-Specific Query message General group/ Group-Specific Query message
IGMP join / leave message IGMP join / leave message IGMP join / leave message IGMP join / leave message
Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network Exterior network
Leaf network Leaf network Leaf network Leaf network Leaf network Leaf network Leaf network
22.22.22.1 22.22.22.1 22.22.22.1 22.22.22.1
Host Host Host Host Host Host Host Host Host Host Host