ZyXEL Communications Dimension GS-3012, Руководство пользователя, Страница: 145 / 259

GS-3012/GS-3012F User’s Guide
Multicast 20-5
Table 20-3 Multicast: IGMP Filtering Profile
LABEL DESCRIPTION
Profile Name Enter a descriptive name for the profile for identification purposes.
To configure additional rule(s) for a profile that you have already added, enter the profile name
and specify a different IP multicast address range.
Start Address Type the starting multicast IP address for a range of multicast IP addresses that you want to
belong to the IGMP filter profile.
End Address Type the ending multicast IP address for a range of IP addresses that you want to belong to
the IGMP filter profile.
If you want to add a single multicast IP address, enter it in both the Start Address and End
Address fields.
Add Click Add to save the settings to the switch.
Clear Click Clear to clear the fields to the factory defaults.
Profile Name This field displays the descriptive name of the profile.
Start Address This field displays the start of the multicast address range.
End Address This field displays the end of the multicast address range.
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.
20.5 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 subscriber 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 .