In transparent mode, the switch receives one copy of each IPTV multicast stream and
then replicates the stream only to those hosts that want to receive it, while forwarding
all other types of multicast traffic without modification. Figure 1 shows how MVR operates
in transparent mode.
In proxy mode, the switch acts as a proxy for the IGMP multicast router in the MVLAN for
MVR group memberships established in the MVR receiver VLANs and generates and
sends IGMP packets into the MVLAN as needed. Figure 2 shows how MVR operates in
proxy mode.
This example shows how to configure MVR in both transparent mode and proxy mode
on an EX Series switch. The topology includes a video server that is connected to a
multicast router, which in turn forwards the IPTV multicast traffic in the MVLAN to the
Layer 2 network.
Figure 45 on page 2328 shows the MVR topology in transparent mode. Interfaces P1 and
P2 on Switch C belong to service VLAN
s0
and MVLAN
mv0
. Interface P4 of Switch C
also belongs to service VLAN
s0
. In the upstream direction of the network, only non-IPTV
traffic is being carried in individual customer VLANs of service VLAN
s0
. VLAN
c0
is an
example of this type of customer VLAN. IPTV traffic is being carried on MVLAN
mv0
. If
any host on any customer VLAN connected to port P4 requests an MVR stream, switch
C takes the stream from VLAN
mv0
and replicates that stream onto port P4 with tag
mv0
. IPTV traffic, along with other network traffic, flows form port P4 out to the Digital
Subscriber Line Access Multiplexer (DSLAM)
D1
.
2327
Copyright © 2010, Juniper Networks, Inc.
Chapter 76: Examples: IGMP Snooping and Multicast Configuration
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...