Chapter 13 Multicast
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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.
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 34
MVR Network Example
13.5.1 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.
13.5.2 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.
13.5.3 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.
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Страница 7: ...Safety Warnings ES 315 ES 315 F User s Guide 7 ...
Страница 8: ...Safety Warnings ES 315 ES 315 F User s Guide 8 ...
Страница 10: ...Contents Overview ES 315 ES 315 F User s Guide 10 ...
Страница 21: ...21 PART I Introduction and Hardware Getting to Know Your Switch 23 Hardware Overview 27 ...
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Страница 26: ...Chapter 1 Getting to Know Your Switch ES 315 ES 315 F User s Guide 26 ...
Страница 29: ...Chapter 2 Hardware Overview ES 315 ES 315 F User s Guide 29 Figure 7 Base Panel ES 315 F POWER ...
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Страница 84: ...Chapter 13 Multicast ES 315 ES 315 F User s Guide 84 Figure 41 MVR Group Configuration Example ...
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Страница 90: ...Chapter 14 Static Route ES 315 ES 315 F User s Guide 90 ...
Страница 91: ...91 PART V Management Maintenance 93 Access Control 99 Diagnostic 113 Syslog 115 MAC Table 119 ARP Table 121 ...
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Страница 112: ...Chapter 16 Access Control ES 315 ES 315 F User s Guide 112 ...
Страница 114: ...Chapter 17 Diagnostic ES 315 ES 315 F User s Guide 114 ...
Страница 118: ...Chapter 18 Syslog ES 315 ES 315 F User s Guide 118 ...
Страница 123: ...Chapter 20 ARP Table ES 315 ES 315 F User s Guide 123 ...
Страница 124: ...Chapter 20 ARP Table ES 315 ES 315 F User s Guide 124 ...
Страница 125: ...125 PART VI Troubleshooting and Product Specifications Troubleshooting 127 Product Specifications 131 ...
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Страница 130: ...Chapter 21 Troubleshooting ES 315 ES 315 F User s Guide 130 ...
Страница 136: ...Chapter 22 Product Specifications ES 315 ES 315 F User s Guide 136 ...
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Страница 152: ...Appendix B Common Services ES 315 ES 315 F User s Guide 152 ...
Страница 156: ...Appendix C Legal Information ES 315 ES 315 F User s Guide 156 ...
Страница 162: ...Appendix D Customer Support ES 315 ES 315 F User s Guide 162 ...