SMC Networks SMC7724M/VSW manual Adding Multicast Addresses to VLANs, Command Usage

MULTICAST CONFIGURATION

Command Line Interface

This example displays all the known multicast services supported on VLAN 1, along with the ports propagating the corresponding services. The type field shows whether this entry was learned dynamically or was statically configured.

Console#show		bridge 1	multicast vlan 1	3-117
VLAN	M'cast	IP addr.	Member ports Type
----	---------------		------------ -------
1	224.0.0.12		Eth1/12	USER
1		224.1.2.3	Eth1/12	IGMP

Console#

Adding Multicast Addresses to VLANs

Multicast filtering can be dynamically configured using IGMP Snooping and IGMP Query messages as described in “Port Trunk Configuration” on page 2-78.For 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 a specific VLAN, the corresponding traffic can only be forwarded to ports within that VLAN.

Fields and 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.

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