Mld snooping, Table 146: mld snooping commands, Mld s – LevelOne GTL-2691 User Manual
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C
HAPTER
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| Multicast Filtering Commands
MLD Snooping
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C
OMMAND
M
ODE
Privileged Exec
C
OMMAND
U
SAGE
Using this command without specifying an interface displays all interfaces.
E
XAMPLE
Console#show ip multicast-data-drop interface ethernet 1/1
Ethernet 1/1: Enabled
Console#
MLD S
NOOPING
Multicast Listener Discovery (MLD) snooping operates on IPv6 traffic and
performs a similar function to IGMP snooping for IPv4. That is, MLD
snooping dynamically configures switch ports to limit IPv6 multicast traffic
so that it is forwarded only to ports with users that want to receive it. This
reduces the flooding of IPv6 multicast packets in the specified VLANs.
There are two versions of the MLD protocol, version 1 and version 2.
MLDv1 control packets include Listener Query, Listener Report, and
Listener Done messages (equivalent to IGMPv2 query, report, and leave
messages). MLDv2 control packets include MLDv2 query and report
messages, as well as MLDv1 report and done messages.
Remember that IGMP Snooping and MLD Snooping are independent
functions, and can therefore both function at the same time.
Table 146: MLD Snooping Commands
Command
Function
Mode
Enables MLD Snooping globally
GC
Allows the switch to act as the querier for MLD
snooping
GC
Configures the interval between sending MLD general
query messages
GC
Configures the maximum response time for a general
queries
GC
Configures the robustness variable
GC
Configures the router port expire time
GC
Sets an action for unknown multicast packets
GC
Configures the MLD Snooping version
GC
Removes a member port of an IPv6 multicast service
if a leave packet is received at that port and MLD
immediate-leave is enabled for the parent VLAN
GC