Example: Configuring Multicast Vlan Registration On Ex Series Switches - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos

Example: Configuring Multicast VLAN Registration on EX Series Switches

Requirements
Overview and Topology
2546
®
OS for EX Series Ethernet Switches, Release 10.4
Multicast VLAN registration (MVR) allows hosts that are not part of a multicast VLAN
(MVLAN) to receive multicast streams from the MVLAN, allowing the MVLAN to be shared
across the Layer 2 network and eliminating the need to send duplicate multicast streams
to each requesting VLAN in the network. Hosts remain in their own VLANs for bandwidth
and security reasons.
This example describes how to configure MVR on EX Series switches:
Requirements on page 2546
Overview and Topology on page 2546
Configuration on page 2549
This example uses the following hardware and software components:
One EX Series switch
Junos OS Release 9.6 or later for EX Series switches
Before you configure MVR, be sure you have:
Configured two or more VLANs on the switch. See "Example: Setting Up Bridging with
Multiple VLANs for EX Series Switches" on page 1532.
Connected the EX Series switch to a network that can transmit IPTV multicast streams
from a video server.
Connected a host that is capable of receiving IPTV multicast streams to an interface
in one of the VLANs.
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 multicast traffic flows throughout the Layer
2 network. Multicast traffic can then be selectively forwarded from interfaces on the
MVLAN (source ports) to hosts that are connected to interfaces (multicast receiver
ports) that are not part of the multicast source VLAN. When you configure an MVLAN,
you assign a range of multicast group addresses to it. You then configure other VLANs
to be MVR receiver VLANs, which receive multicast streams from the MVLAN. The MVR
receiver ports comprise all the interfaces that exist on any of the MVR receiver VLANs.
You can configure MVR to operate in one of two modes: transparent mode (the default
mode) or proxy mode. Both modes allow MVR to forward only one copy of a multicast
stream to the Layer 2 network.
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