Web Management Guide-R02

Table Of Contents
Chapter 14
| Multicast Filtering
Multicast VLAN Registration for IPv4
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membership for MVR receiver ports cannot be set to access mode (see “Adding
Static Members to VLANs” on page 165).
One or more interfaces may be configured as MVR source ports. A source port is
able to both receive and send data for configured MVR groups or for groups
which have been statically assigned (see Assigning Static MVR Multicast
Groups to Interfaces” on page 582).
All source ports must belong to the MVR VLAN.
Subscribers should not be directly connected to source ports.
Immediate leave applies only to receiver ports. When enabled, the receiver port
is immediately removed from the multicast group identified in the leave
message. When immediate leave is disabled, the switch follows the standard
rules by sending a query message to the receiver port and waiting for a
response to determine if there are any remaining subscribers for that multicast
group before removing the port from the group list.
Using immediate leave can speed up leave latency, but should only be
enabled on a port attached to one multicast subscriber to avoid disrupting
services to other group members attached to the same interface.
Immediate leave does not apply to multicast groups which have been
statically assigned to a port.
Parameters
These parameters are displayed:
Domain ID – An independent multicast domain. (Range: 1-5)
Port/Trunk – Interface identifier.
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 Adding Static
Members to VLANs” on page 165).
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.
Just remember that only IGMP version 2 or 3
hosts can issue multicast join or leave messages. If MVR must be configured
for an IGMP version 1 host, the multicast groups must be statically assigned
(see Assigning Static MVR Multicast Groups to Interfaces” on page 582).
Non-MVR – An interface that does not participate in the MVR VLAN. (This is
the default type.)