Cisco SR224T Administration Guide - Page 198
Configuring IGMP Snooping, Source Specific, IP Source Address, Apply, Details
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Configuring Multicast Forwarding Configuring IGMP Snooping 15 • Source Specific-Indicates that the entry contains a specific source, and adds the address in the IP Source Address field. If not, the entry is added as a (*,G) entry, an IP group address from any IP source. • IP Source Address-Defines the source address to be included. STEP 6 Click Apply. The IP Multicast group is added, and the device is updated. STEP 7 To configure and display the registration of an IP group address, select an address and click Details. The IP Multicast Interface Settings page opens. The VLAN ID, IP Version, IP Multicast Group Address, and Source IP Address selected are displayed as read-only in the top of the window. You can select the filter type: • Interface Type equals to-Select whether to display ports or LAGs. STEP 8 For each interface, select its association type. The options are as follows: • Static-Attaches the interface to the Multicast group as a static member. • Forbidden-Specifies that this port is forbidden from joining this group on this VLAN. • None-Indicates that the port is not currently a member of this Multicast group on this VLAN. This is selected by default until Static or Forbidden is selected. STEP 9 Click Apply. The Running Configuration file is updated. Configuring IGMP Snooping To support selective Multicast forwarding (IPv4), Bridge Multicast filtering must be enabled (in the Properties page), and IGMP Snooping must be enabled globally and for each relevant VLAN (in the IGMP Snooping page). By default, a Layer 2 switch forwards Multicast frames to all ports of the relevant VLAN, essentially treating the frame as if it were a Broadcast. With IGMP Snooping the switch forwards Multicast frames to ports that have registered Multicast clients. NOTE The switch supports IGMP Snooping only on static VLANs. It does not support IGMP Snooping on dynamic VLANs. Cisco Small Business 200 Series Smart Switch Administration Guide 199