Igmp Configuration - 3Com 8807 Configuration Manual

444 C 42: IGMP C
HAPTER
IGMP Proxy
Configuration

IGMP Configuration

ONFIGURATION
Switch A processes the message after receiving the IGMP message sent by
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Switch B through the interface of VLAN 100, just as the message is sent by a
host directly connected to the interface of VLAN 100.
The procedures to process IGMP normal group or specific group querying
messages are as follows:
After receiving a normal group or a specific group querying message from
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Switch A, Switch B changes the source address of the querying message to the
address of the outbound interface leading to hosts.
Switch B transmits the message through the interface of VLAN 200.
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Configuration prerequisites
IP addresses, PIM, pim neighbor-policy have been configured in the
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corresponding interfaces of the devices in the exterior network.
The switches in the leaf networks are multicast-enabled. The related ports are
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added to specific VLANs. IP addresses, PIM, and IGMP have been configured in
the corresponding interfaces.
Configuration procedure
Table 432 Configure IGMP Proxy
Operation
Enter system view
Enter interface view
Enable IGMP Proxy on the
current interface and specify
the proxy interface for the
current interface
c
CAUTION:
Enable PIM protocol on the interface first before configuring IGMP Proxy.
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If you configure IGMP Proxy for an interface multiple times, the latest
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configuration is valid.
One interface cannot be the IGMP proxy interface of two or more other
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interfaces simultaneously.
After the multicast function is enabled, you must enable IGMP on the interface
first and then perform other IGMP configurations.
IGMP basic configuration includes:
Enabling multicast
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Enabling IGMP on an interface
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IGMP advanced configuration includes:
Enabling the compatibility control function of the switch
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Command
system-view
interface interface-type
interface-number
igmp proxy interface-type
interface-number
Remarks
-
-
Required
By default, IGNP Proxy is
disabled on the interface