SMC Networks SMC7816M, SMC7816VSW VLAN R, 16-21, Configuring Global MVR Settings

M ULTICAST VLAN R EGISTRATION
16-21
General Configuration Guidelines for MVR
1. Enable MVR globally on the switch, select the MVR VLAN, and add
the multicast groups that will stream traffic to attached hosts (see
“Configuring Global MVR Settings” on page 16-21).
2. Set the interfaces that will join the MVR as source ports or receiver
ports (see “Configuring MVR Interfaces” on page 16-26).
3. Enable IGMP Snooping to a allow a subscriber to dynamically join or
leave an MVR group (see “Configuring IGMP Snooping and Query
Parameters” on page 4). Note that only IGMP version 2 or 3 hosts can
issue multicast join or leave messages.
4. For multicast streams that will run for a long term and be associated
with a stable set of hosts, you can statically bind the multicast group to
the participating interfaces (see “Assigning Static Multicast Groups to
Interfaces” on page 16-30).
Configuring Global MVR Settings
The global settings for Multicast VLAN Registration (MVR) include
enabling or disabling MVR for the switch, selecting the VLAN that will
serve as the sole channel for common multicast streams supported by the
service provider, and assigning the multicast group address for each of
these services to the MVR VLAN.
Command Usage
• The following restrictions apply to the use of MVR domains:
- MVR groups cannot overlap MVR domains .
- The same VLAN cannot be assigned to different MVR domains.
• IGMP snooping must be enabled to a allow a subscriber to dynamically
join or leave an MVR group (see “Configuring IGMP Snooping and
Query Parameters” on page 16-4). Note that only IGMP version 2 or 3
hosts can issue multicast join or leave messages.
• IGMP snooping and MVR share a maximum number of 255 groups.
Any multicast streams received in excess of this limitation will be flooded
to all ports in the associated VLAN.