C
HAPTER
37
| Multicast Filtering Commands
Multicast VLAN Registration
– 878 –
mvr type This command configures an interface as an MVR receiver or source port.
Use the no form to restore the default settings.
SYNTAX
[no] mvr type {receiver | source}
receiver - Configures the interface as a subscriber port that can
receive multicast data.
source - Configures the interface as an uplink port that can send
and receive multicast data for the configured multicast groups.
DEFAULT SETTING
The port type is not defined.
COMMAND MODE
Interface Configuration (Ethernet)
COMMAND USAGE
â—† A port which is not configured as an MVR receiver or source port can
use IGMP snooping to join or leave multicast groups using the standard
rules for multicast filtering.
â—† Receiver ports can belong to different VLANs, but should not be
configured as a member of the MVR VLAN. IGMP snooping can be used
to allow a receiver port to dynamically join or leave multicast groups
sourced through the MVR VLAN. Also, note that VLAN membership for
MVR receiver ports cannot be set to trunk mode (see the switchport
mode command).
â—† One or more interfaces may be configured as MVR source ports. A
source port is able to both receive and send data for multicast groups
which it has joined through IGMP snooping or which have been
assigned through the mvr group (Global Configuration) command.
â—† IGMP snooping must be enabled to a allow a subscriber to dynamically
join or leave an MVR group (see the ip igmp snooping command). Note
that only IGMP version 2 or 3 hosts can issue multicast join or leave
messages.
EXAMPLE
The following configures one source port and several receiver ports on the
switch.
Console(config)#interface ethernet 1/5
Console(config-if)#mvr type source
Console(config-if)#exit
Console(config)#interface ethernet 1/6
Console(config-if)#mvr type receiver
Console(config-if)#exit
Console(config)#interface ethernet 1/7
Console(config-if)#mvr type receiver
Console(config-if)#
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