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2. Set the interfaces that will join the MVR as source ports or receiver ports.
3. If you are sure that only one subscriber attached to an interface is receiving multicast
services, you can enable the immediate leave function.
◆ Although MVR operates on the underlying mechanism of IGMP snooping, the two features
operate independently of each other. One can be enabled or disabled without affecting the
behavior of the other. However, if IGMP snooping and MVR are both enabled, MVR reacts
only to join and leave messages from multicast groups configured under MVR. Join and
leave messages from all other multicast groups are managed by IGMP snooping. Also,
note that only IGMP version 2 or 3 hosts can issue multicast leave messages. Immediate
leave therefore cannot be used for IGMP version 1 clients.
PARAMETERS
These parameters are displayed:
MVR Configuration
◆ MVR Status – When MVR is enabled on the switch, any multicast data associated with an
MVR group is sent from all designated source ports, to all receiver ports that have
registered to receive data from that multicast group. (Default: Disabled)
◆ MVR VLAN – Identifier of the VLAN that serves as the channel for streaming multicast
services using MVR. MVR source ports should be configured as members of the MVR
VLAN, but MVR receiver ports should not be manually configured as members of this
VLAN. (Default: 100)
Port Configuration
◆ Port – Port identifier.
◆ Mode – Sets the MVR operational mode for any port. MVR must also be globally enabled
on the switch for this setting to take effect. MVR only needs to be enabled on a receiver
port if there are subscribers receiving multicast traffic from one of the MVR groups. (Default:
Disabled)
◆ Type – The following interface types are supported:
■ Source – An uplink port that can send and receive multicast data for the groups
assigned to the MVR VLAN. Note that the source port must be manually configured as a
member of the MVR VLAN (see "Assigning Ports to VLANs" on page 162).
■ Receiver – A subscriber port that can receive multicast data sent through the MVR
VLAN. Any port configured as a receiver port will be dynamically added to the MVR VLAN
when it forwards an IGMP report or join message from an attached host requesting any of
the designated multicast services supported by the MVR VLAN.
◆ 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.)
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