Configuring Basic Igmp Snooping Functions - HP A8800 Configuration Manual

made in IGMP snooping view is effective only if you do not make the same configuration in VLAN
view.
The configurations made in IGMP snooping view are effective for all ports. The configurations made
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in Layer 2 Ethernet interface view or Layer 2 aggregate interface view are effective for only the
current port. The configurations made in port group view are effective for only the ports in the
current port group. For a given port, a configuration made in IGMP snooping view is effective only
if you do not make the same configuration Layer 2 Ethernet interface view, Layer 2 aggregate
interface view, or port group view.
For IGMP snooping, configurations made on a Layer 2 aggregate interface do not interfere with
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configurations made on its member ports, nor do they participate in aggregation calculations.
Configurations made on a member port of the aggregate group do not take effect until the port
leaves the aggregate group.

Configuring basic IGMP snooping functions

Before you configure the basic IGMP snooping functions, complete the following tasks:
• Configure the corresponding VLANs.
Determine the version of IGMP snooping.
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Enabling IGMP snooping
When you enable IGMP snooping, follow these guidelines:
You must enable IGMP snooping globally before you enable it for a VLAN.
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After you enable IGMP snooping for a VLAN, do not enable IGMP or PIM on the corresponding
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VLAN interface. If you enable IGMP or PIM on a VLAN interface, do not enable IGMP snooping for
the VLAN
• IGMP snooping for a VLAN works on only the ports in this VLAN.
To enable IGMP snooping:
Step
1. Enter system view.
2. Enable IGMP snooping
globally and enter
IGMP-snooping view.
3. Return to system view.
4. Enter VLAN view.
5. Enable IGMP snooping in the
VLAN.
Specifying the version of IGMP snooping
Different versions of IGMP snooping can process different versions of IGMP messages:
IGMPv2 snooping can process IGMPv1 and IGMPv2 messages, but flood IGMPv3 messages in the
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VLAN instead of processing them.
Command
system-view
igmp-snooping
quit
vlan vlan-id
igmp-snooping enable
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Remarks
N/A
Disabled by default.
N/A
N/A
Disabled by default.