Configuring Igmp Snooping - Cisco 200 Series Administration Manual

Configuring Multicast Forwarding

Configuring IGMP Snooping

STEP 6
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STEP 8
STEP 9
STEP 10
Configuring IGMP Snooping
NOTE
Cisco Small Business 200 Series Smart Switch Administration Guide
• IP Source Address—Defines the source address to be included.
Click Apply. The IP Multicast group is added, and the device is updated.
To configure and display the registration of an IP group address, select an address
and click Details. The IP Multicast Interface Settings Page opens.
Use the filter "Interface Type equals" to view the group membership on port or
LAG and click Go.
For each interface, select its association type. The options are as follows:
• Static—Attaches the interface to the Multicast group as a static member.
• Dynamic—Indicates that the interface was added to the Multicast group as
a result of IGMP/MLD snooping.
• 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.
Click Apply. The switch is updated.
To support selective Multicast forwarding (IPv4), Bridge Multicast filtering must be
enabled, and IGMP Snooping must be enabled globally and for each relevant
VLAN.
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.
The switch supports IGMP Snooping only on static VLANs. It does not support
IGMP Snooping on dynamic VLANs.
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