ZyXEL Communications GS3700 Series Podręcznik Użytkownika Pobierz pdf (Strona 201)

Chapter 22 Multicast

GS3700/XGS3700 Series User’s Guide

201

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.

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 119 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

Delete To delete the profile(s) and all the accompanying rules, select the profile(s) that you want

to remove in the Delete Profile column, then click the Delete button.

To delete a rule(s) from a profile, select the rule(s) that you want to remove in the Delete

Rule column, then click the Delete button.

Cancel Click Cancel to clear the Delete Profile/Delete Rule check boxes.

Table 92 Advanced Application > Multicast > IPv6 Multicast > MLD Snooping-proxy > Filtering >

Filtering Profile (continued)

LABEL DESCRIPTION

SMulticast VLAN

VLAN 1

VLAN 2

VLAN 3

1 2 ... 196 197 198 199 200 201 202 203 204 205 206 ... 415 416

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ZyXEL Communications GS3700 Series Podręcznik Użytkownika Strona 201