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Assigning Ports to Multicast Services
Multicast filtering can be dynamically configured using IGMP Snooping
and IGMP Query messages as described in “Configuring IGMP snooping
and Query Parameters” on page 3-133. For certain applications that
require tighter control, you may need to statically configure a multicast
service on the switch. First add all the ports attached to participating hosts
to a common VLAN, and then assign the multicast service to that VLAN
group.
Command Usage
• Static multicast addresses are never aged out.
• When a multicast address is assigned to an interface in a specific
VLAN, the corresponding traffic can only be forwarded to ports
within that VLAN.
Command Attributes
• Interface – Activates the Port or Trunk scroll down list.
• VLAN ID – Selects the VLAN to propagate all multicast traffic
coming from the attached multicast router/switch.
• Multicast IP – The IP address for a specific multicast service
• Port or Trunk – Specifies the interface attached to a multicast router/
switch.
Web – Click IGMP Snooping, IGMP Member Port Table. Specify the
interface attached to a multicast service (via an IGMP-enabled switch or
multicast router), indicate the VLAN that will propagate the multicast
service, specify the multicast IP address, and click Add. After you have
completed adding ports to the member list, click Apply.
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