20-17
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
Chapter 20 Configuring IGMP Snooping and MVR
Configuring MVR
Configuring MVR
These sections include basic MVR configuration information:
Default MVR Configuration, page 20-17
MVR Configuration Guidelines and Limitations, page 20-17
Configuring MVR Global Parameters, page 20-18
Configuring MVR Interfaces, page 20-19

Default MVR Configuration

Table 20-5 shows the default MVR configuration.

MVR Configuration Guidelines and Limitations

Follow these guidelines when configuring MVR:
Receiver ports cannot be trunk ports. Receiver ports on a switch can be in different VLANs, but
should not belong to the multicast VLAN.
The maximum number of multicast entries that can be configured on a switch (that is, the maximum
number of television channels that can be received) is 256.
Each channel is one multicast stream destined for a unique IP multicast address. These IP addresses
cannot alias between themselves or with the reserved IP multicast addresses (in the
range 224.0.0.xxx).
MVR does not support IGMPv3 messages.
Note For complete syntax and usage information for the commands used in this section, see the command
reference for this release.
Tab l e 20-5 Default MVR Configuration
Feature Default Setting
MVR Disabled globally and per interface
Multicast addresses None configured
Query response time 0.5 second
Multicast VLAN VLAN 1
Mode Compatible
Interface (per port) default Neither a receiver nor a source port
Immediate Leave Disabled on all ports