20
•
IGMPv3 snooping processes IGMPv1, IGMPv2, and IGMPv3 messages.
If you change IGMPv3 snooping to IGMPv2 snooping, the device performs the following actions:
•
Clears all IGMP snooping forwarding entries that are dynamically added.
•
Keeps static IGMPv3 snooping forwarding entries (*, G).
•
Clears static IGMPv3 snooping forwarding entries (S, G), which will be restored when IGMP
snooping is switched back to IGMPv3 snooping.
For more information about static IGMP snooping forwarding entries, see "
."
You can specify the version for the specified VLANs in IGMP-snooping view, for a VSI in VSI view, or
for a VLAN in VLAN view. For a VLAN, the configuration in VLAN view has the same priority as the
configuration in IGMP-snooping view, and the most recent configuration takes effect.
Specifying an IGMP snooping version in IGMP-snooping view
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable IGMP snooping
globally and enter
IGMP-snooping view.
igmp-snooping
N/A
3.
Specify an IGMP snooping
version for the specified
VLANs.
version version-number
vlan
vl
an-list
The default setting is 2.
Specifying an IGMP snooping version in VLAN or VSI view
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter VLAN view or VSI view.
•
Enter VLAN view:
vlan vlan-id
•
Enter VSI view:
vsi
vsi-name
N/A
3.
Specify an IGMP snooping
version for the VLAN or VSI.
igmp-snooping
version version-number
The default setting is 2.
Setting the maximum number of IGMP snooping forwarding
entries
You can modify the maximum number of IGMP snooping forwarding entries, including dynamic
entries and static entries. When the number of forwarding entries on the device reaches the upper
limit, the device does not automatically remove any existing entries. To allow new entries to be
created, remove some entries manually.
To set the maximum number of IGMP snooping forwarding entries:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IGMP-snooping view.
igmp-snooping
N/A
3.
Set the maximum number of
IGMP snooping forwarding
entries.
entry-limit limit
The default setting is
4294967295.