M
ULTICAST
VLAN R
EGISTRATION
3-237
Figure 3-103. IGMP Member Port Table
CLI – This example assigns a multicast address to VLAN 1, and then
displays all the known multicast services supported on VLAN 1.
Multicast VLAN Registration
Multicast VLAN Registration (MVR) is a protocol that controls access to a
single network-wide VLAN most commonly used for transmitting
multicast traffic (such as television channels or video-on-demand) across a
service provider’s network. Any multicast traffic entering an MVR VLAN
is sent to all attached subscribers. This protocol can significantly reduce to
processing overhead required to dynamically monitor and establish the
distribution tree for a normal multicast VLAN. This makes it possible to
support common multicast services over a wide part of the network
without having to use any multicast routing protocol.
Console(config)#ip igmp snooping vlan 1 static 224.1.1.12
ethernet 1/12 4-270
Console(config)#exit
Console#show mac-address-table multicast vlan 1 4-274
VLAN M'cast IP addr. Member ports Type
---- --------------- ------------ -------
1 224.1.1.12 Eth1/12 USER
1 224.1.2.3 Eth1/12 IGMP
Console#
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