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Multicast VLAN Registration
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CLI – This example assigns IGMP profile number 19 to port 1, and then sets the
throttling number and action. The current IGMP filtering and throttling settings for the
interface are then displayed.
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 the 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.
MVR maintains the user isolation and data security provided by VLAN segregation
by passing only multicast traffic into other VLANs to which the subscribers belong.
Even though common multicast streams are passed onto different VLAN groups
from the MVR VLAN, users in different IEEE 802.1Q or private VLANs cannot
exchange any information (except through upper-level routing services).
Console(config)#interface ethernet 1/1 4-166
Console(config-if)#ip igmp filter 19 4-300
Console(config-if)#ip igmp max-groups 64 4-300
Console(config-if)#ip igmp max-groups action deny 4-301
Console(config-if)#end
Console#show ip igmp filter interface ethernet 1/1 4-302
Information of Eth 1/1
IGMP Profile 19
permit
range 239.1.2.3 239.1.2.3
range 239.2.3.1 239.2.3.200
Console#show ip igmp throttle interface ethernet 1/1 4-303
Information of Eth 1/1
status : TRUE
action : deny
max multicast groups : 64
current multicast groups: 0
Console#