Alloy AS5010-P, User Manual

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AS Series User Manual
149
Doc No.: AS5-0116-01
MVR
Multicast VLAN registration (MVR) allows you to efficiently distribute IPTV multicast stream across
an Ethernet ring-based Layer 2 network and reduce the amount of bandwidth consumed by this
multicast traffic.
In a standard Layer 2 network, a multicast stream received on one VLAN is never distributed to
interfaces outside that VLAN. If hosts in multiple VLANs request the same multicast stream, a
separate copy of that multicast stream is distributed to the requesting VLANs.
MVR introduces the concept of a multicast source VLAN (MVLAN), which is created by MVR and
becomes the only VLAN over which IPTV multicast traffic flows throughout the Layer 2 network. The
Alloy AS Series Switches that are enabled for MVR selectively forward IPTV multicast traffic from
interfaces on the MVLAN (source interfaces) to hosts that are connected to interfaces that are not
part of the MVLAN. These interfaces are known as MVR receiver ports. The MVR receiver ports can
receive traffic from a port on the MVLAN but cannot send traffic onto the MVLAN, and they remain
in their own VLANs for bandwidth and security reasons.
Information
To configure the MVR parameters via the Web Interface:
1. Click Configuration > MVR
2. Select to enable or disable MVR.
3. Configure settings for each individual port.
4. Click the Apply button to save your changes or the Reset button to revert to previous
settings.