Table 208: IGMP Snooping Querier VLAN Configuration Fields (continued)
Field
Description
Version
The operational IGMP protocol version of the querier.
Last IP Address
The IP address of the last querier from which a query was snooped on the VLAN.
Last Version
The IGMP protocol version of the last querier from which a query was snooped
on the VLAN.
Max Response Time (Seconds) The maximum response time to be used in the queries that are sent by the
snooping querier.
Click
Refresh
to refresh the page with the most current data from the switch.
Configuring MLD Snooping
Use this page to enable Multicast Listener Discovery (MLD) snooping on the device and to view global
status information. In IPv4, Layer 2 switches can use
snooping to limit the flooding of multicast
traffic by dynamically configuring Layer 2 interfaces so that multicast traffic is forwarded to only those
interfaces associated with IP multicast address.
In IPv6 networks, MLD snooping performs a similar function. With MLD snooping, IPv6 multicast data is
selectively forwarded to a list of ports intended to receive the data (instead of being flooded to all of
the ports in a VLAN). This list is constructed by snooping IPv6 multicast control packets.
Note
This feature is available for 220 switches only.
Global Configuration and Status
To access the MLD Snooping Configuration and Status page, click
Switching
>
MLD Snooping
>
Configuration
in the navigation menu.
Table 209: MLD Snooping Configuration and Status Fields
Field
Description
MLD Snooping Admin Mode
The administrative mode of MLD snooping on the device.
Multicast Control Frame Count The number of multicast control frames that have been processed by the CPU.
Interfaces Enabled for MLD
Snooping
One or more interfaces on which MLD snooping is administratively enabled. MLD
snooping must be enabled globally and on an interface for the interface to be
able to snoop MLD packets to determine which segments should receive
multicast packets directed to the group address.
VLANs Enabled for MLD
Snooping
One or more VLANs on which MLD snooping is administratively enabled.
Select
Enable
or
Disable
in the
MLD Snooping
>
Admin Mode
field and click
Submit
to turn the feature
on or off. Perform a save if you want the changes to remain in effect over a power cycle.
Configuring Switching Information
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