H3C Technologies H3C S12500-X Series Switches - Manual (Page 121)

111
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable MLD snooping
globally and enter
MLD-snooping view.
mld-snooping By default, MLD snooping is disabled.
3. Enable MLD snooping for
the specified VLANs.
enable vlan vlan-list
By default, MLD snooping is disabled for a
VLAN.
To enable MLD snooping for a VLAN in VLAN view:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable MLD snooping
globally and enter
MLD-snooping view.
mld-snooping
By default, MLD snooping is
disabled.
3. Return to system view. quit N/A
4. Enter VLAN view. vlan vlan-id N/A
5. Enable MLD snooping for the
VLAN.
mld-snooping enable
By default, MLD snooping for a
VLAN is disabled.
Specifying the MLD snooping version
Different versions of MLD snooping can process different versions of MLD messages:
• MLDv1 snooping can process MLDv1 messages, but it floods MLDv2 messages in the VLAN
instead of processing them.
• MLDv2 snooping can process MLDv1 and MLDv2 messages.
If you change MLDv2 snooping to MLDv1 snooping, the system does the following:
• Clears all MLD snooping forwarding entries that are dynamically created.
• Keeps static MLDv2 snooping forwarding entries (*, G).
• Clears static MLDv2 snooping forwarding entries (S, G), which will be restored when MLD
snooping is switched back to MLDv2 snooping.
For more information about static MLD snooping forwarding entries, see " Configuring static ports ."
You can specify the MLD snooping version for a VLAN in MLD-snooping view or in VLAN view. The two
configurations have the same priority level.
To specify the MLD snooping version for a VLAN in MLD-snooping view:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable MLD snooping
globally and enter
IGMP-snooping view.
mld-snooping N/A