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39 MULTICAST FILTERING COMMANDS
This switch uses IGMP (Internet Group Management Protocol) to check for
any attached hosts that want to receive a specific multicast service. It
identifies the ports containing hosts requesting a service and sends data
out to those ports only. It then propagates the service request up to any
neighboring multicast switch/router to ensure that it will continue to
receive the multicast service.
Note that IGMP query can be enabled globally at Layer 2, or enabled for
specific VLAN interfaces at Layer 3. (Layer 2 query is disabled if Layer 3
query is enabled.)
Table 112: Multicast Filtering Commands
Command Group Function
IGMP Snooping Configures multicast groups via IGMP snooping or static
assignment, sets the IGMP version, enables proxy reporting,
displays current snooping settings, and displays the multicast
service and group members
Static Multicast Routing Configures static multicast router ports which forward all inbound
multicast traffic to the attached VLANs
IGMP Filtering and
Throttling
Configures IGMP filtering and throttling
Multicast VLAN
Registration
Configures a single network-wide multicast VLAN shared by hosts
residing in other standard or private VLAN groups, preserving
security and data isolation for normal traffic
IGMP (Layer 3) Configures the IGMP protocol used with multicast routing in IPv4
networks
IGMP Proxy Routing Collects and sends multicast group membership information onto
the upstream interface based on IGMP messages monitored on
downstream interfaces, and forwards multicast traffic based on
that information
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