Cisco Systems SG50028PK9NA Manual De Usuario

Access Port Multicast TV VLAN

Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 

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Multicast TV VLANs enable Multicast transmissions to subscribers who are not on 
the same data VLAN (Layer 2-isolated), without replicating the Multicast 
transmission frames for each subscriber VLAN. 

Subscribers, who are not on the same data VLAN (Layer 2-isolated) and are 
connected to the device with different VLAN ID membership. can share the same 
Multicast stream by joining the ports to the same Multicast VLAN ID. 

The network port, connected to the Multicast server, is statically configured as a   
member in the Multicast VLAN ID. 

The network ports, which through subscribers communicate with the Multicast 
server (by sending IGMP messages), receive the Multicast streams from the 
Multicast server, while including the Multicast TV VLAN in the Multicast packet 
header. For this reasons, the network ports must be statically configured as the 
following:

•

Trunk or general port type (see 

)

•

Member on the Multicast TV VLAN

The subscriber receiver ports can be associated with the Multicast TV VLAN only 
if it is defined in one of the two following types:

•

Access port

•

Customer port (see 

One or more IP Multicast address groups can be associated with the same 
Multicast TV VLAN. 

Any VLAN can be configured as a Multicast-TV VLAN. A port assigned to a 
Multicast-TV VLAN:

•

Joins the Multicast-TV VLAN.

•

Packets passing through egress ports in the Multicast TV VLAN are 
untagged.

•

The port’s Frame Type parameter is set to Admit All, allowing untagged 
packets (see 

The Multicast TV VLAN configuration is defined per port. Customer ports are 
configured to be member of Multicast TV VLANs using the Multicast TV VLAN 
Page.