LevelOne GSW-4876 - Manual (Page 142)

C HAPTER 4 | Configuring the Switch
Multicast VLAN Registration
– 142 –
■
Source (S) – Configures uplink ports to receive and send multicast
data as source ports. Subscribers cannot be directly connected to
source ports. Also, note that MVR source ports should not overlap
ports in the management VLAN.
■
Receiver (R) – Configures a port as a receiver port if it is a
subscriber port and should only receive multicast data. It does not
receive data unless it becomes a member of the multicast group by
issuing IGMP/MLD messages.
Immediate Leave Setting
◆ Port – Port identifier.
◆ Immediate Leave – Configures the switch to immediately remove an
interface from a multicast stream as soon as it receives a leave
message for that group. (This option only applies to an interface
configured as an MVR receiver.)
Just remember that only IGMP version 2 or 3 hosts can issue multicast
leave messages. If a version 1 host is receiving multicast traffic, the
switch can only remove the interface from the multicast stream after
the host responds to a periodic request for a membership report.
Note that immediate leave should only be enabled on receiver ports to
which only one subscriber is attached. Otherwise, service to other
active receivers will be affected.
W EB I NTERFACE
To configure global and interface settings for MVR:
1. Click Advanced Configuration, MVR.
2. Enable MVR globally on the switch
3. Click “Add New MVR VLAN,” enter MVR VLAN ID, set the operating
mode to control whether or not membership reports are sent from
source ports, specify whether or not control frames are tagged with the
MVR ID, set the priority and last member query interval.
4. Optionally enable immediate leave on any receiver port to which only
one subscriber is attached.
5.
Click Save.