Command Line Interface
9351553-KDU 137 365 Uen D 2006-06-16
7.21 Multicast Filtering Commands
The ECN330-switch uses IGMP (Internet Group Management Protocol) to
query 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 or 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 106 Multicast Filtering Commands
Command Groups Function Page
IGMP Snooping Configures multicast groups through IGMP snooping or
static assignment, sets the IGMP version, displays current
snooping and query settings, and displays the multicast
service and group members
936
IGMP Query (Layer 2) Configures IGMP query parameters for multicast filtering at
Layer 2
942
Static Multicast
Routing
Configures static multicast router ports 949
IGMP (Layer 3) Configures the IGMP protocol used with multicast routing 952
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