Chapter 22 Multicast
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22.5 MVR Overview
Multicast VLAN Registration (MVR) is designed for applications (such as Media-on-Demand
(MoD)) that use multicast traffic across an Ethernet ring-based service provider network.
MVR allows one single multicast VLAN to be shared among different subscriber VLANs on
the network. While isolated in different subscriber VLANs, connected devices can subscribe
to and unsubscribe from the multicast stream in the multicast VLAN. This improves
bandwidth utilization with reduced multicast traffic in the subscriber VLANs and simplifies
multicast group management.
You must enable IGMP snooping to use MVR. However, MVR only responds to IGMP join
and leave control messages from multicast groups that are configured under MVR. Join and
leave reports from other multicast groups are managed by IGMP snooping.
The following figure shows a network example. The subscriber VLAN (
1
,
2
and
3
)
information is hidden from the streaming media server,
S
. In addition, the multicast VLAN
information is only visible to the Switch and
S
.
Figure 68
MVR Network Example
22.5.1 Types of MVR Ports
In MVR, a source port is a port on the Switch that can send and receive multicast traffic in a
multicast VLAN while a receiver port can only receive multicast traffic. Once configured, the
Switch maintains a forwarding table that matches the multicast stream to the associated
multicast group.
22.5.2 MVR Modes
You can set your Switch to operate in either dynamic or compatible mode.
In dynamic mode, the Switch sends IGMP leave and join reports to the other multicast devices
(such as multicast routers or servers) in the multicast VLAN. This allows the multicast devices
to update the multicast forwarding table to forward or not forward multicast traffic to the
receiver ports.
In compatible mode, the Switch does not send any IGMP reports. In this case, you must
manually configure the forwarding settings on the multicast devices in the multicast VLAN.
22.5.3 How MVR Works
The following figure shows a multicast television example where a subscriber device (such as
a computer) in VLAN 1 receives multicast traffic from the streaming media server,
S
, via the
Switch. Multiple subscriber devices can connect through a port configured as the receiver on
the Switch.
Summary of Contents for GS-2724
Page 1: ...www zyxel com GS 2724 Ethernet Switch User s Guide Version 3 70 4 2007 Edition 1 ...
Page 2: ......
Page 7: ...Safety Warnings GS 2724 User s Guide 7 ...
Page 8: ...Safety Warnings GS 2724 User s Guide 8 ...
Page 22: ...Table of Contents GS 2724 User s Guide 22 ...
Page 30: ...List of Tables GS 2724 User s Guide 30 ...
Page 32: ...32 ...
Page 36: ...Chapter 1 Getting to Know Your Switch GS 2724 User s Guide 36 ...
Page 40: ...Chapter 2 Hardware Installation and Connection GS 2724 User s Guide 40 ...
Page 46: ...Chapter 3 Hardware Overview GS 2724 User s Guide 46 ...
Page 48: ...48 ...
Page 58: ...Chapter 4 The Web Configurator GS 2724 User s Guide 58 ...
Page 64: ...Chapter 5 Initial Setup Example GS 2724 User s Guide 64 ...
Page 70: ...Chapter 6 System Status and Port Statistics GS 2724 User s Guide 70 ...
Page 84: ...84 ...
Page 94: ...Chapter 8 VLAN GS 2724 User s Guide 94 Figure 36 Port Based VLAN Setup All connected ...
Page 126: ...Chapter 16 Port Authentication GS 2724 User s Guide 126 ...
Page 130: ...Chapter 17 Port Security GS 2724 User s Guide 130 ...
Page 136: ...Chapter 18 Classifier GS 2724 User s Guide 136 Figure 58 Classifier Example ...
Page 139: ...Chapter 19 Policy Rule GS 2724 User s Guide 139 Figure 59 Policy ...
Page 145: ...Chapter 20 Queuing Method GS 2724 User s Guide 145 ...
Page 146: ...Chapter 20 Queuing Method GS 2724 User s Guide 146 ...
Page 152: ...Chapter 21 VLAN Stacking GS 2724 User s Guide 152 ...
Page 166: ...166 ...
Page 183: ...Chapter 27 DHCP GS 2724 User s Guide 183 Figure 89 DHCP Relay Configuration Example ...
Page 184: ...Chapter 27 DHCP GS 2724 User s Guide 184 ...
Page 186: ...186 ...
Page 210: ...Chapter 31 Syslog GS 2724 User s Guide 210 ...
Page 224: ...Chapter 36 Routing Table GS 2724 User s Guide 224 ...
Page 228: ...228 ...
Page 262: ...Chapter 38 Introducing Commands GS 2724 User s Guide 262 ...
Page 296: ...Chapter 42 IEEE 802 1Q Tagged VLAN Commands GS 2724 User s Guide 296 ...
Page 300: ...Chapter 44 Routing Domain Command Examples GS 2724 User s Guide 300 ...
Page 304: ...304 ...
Page 312: ...Appendix B Changing a Fuse GS 2724 User s Guide 312 ...
Page 332: ...Appendix E Common Services GS 2724 User s Guide 332 ...
Page 336: ...Appendix F Legal Information GS 2724 User s Guide 336 ...
Page 348: ...Index GS 2724 User s Guide 348 ...