ZyXEL Communications GS3700 Series Guía de usuario Pagina 186

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Chapter 22 Multicast
GS3700/XGS3700 Series User’s Guide
186
one query from a router (X) or MLD Done or Report message from any upstream port, it will be
broadcast to all connected upstream ports.
22.1.6 MLD Messages
A multicast router or switch periodically sends general queries to MLD hosts to update the multicast
forwarding table. When an MLD host wants to join a multicast group, it sends an MLD Report
message for that address.
An MLD Done message is similar to an IGMP Leave message. When an MLD host wants to leave a
multicast group, it can send a Done message to the router or switch. If the leave mode is not set to
Immediate, the router or switch sends a group-specific query to the port on which the Done
message is received to determine if other devices connected to this port should remain in the
group.
22.2 Multicast Setup
Use this screen to configure IGMP for IPv4 or MLD for IPv6 and set up multicast VLANs. Click
Advanced Application > Multicast in the navigation panel.
Figure 108 Advanced Application > Multicast Setup
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X
Done
Query
Report
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