11-11
Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-03
Chapter 11 Configuring IGMP Snooping and MVR
Understanding Multicast VLAN Registration
Step 3
mvr group ip-address [count] Configure an IP multicast address on the switch or use the count parameter to
configure a contiguous series of IP addresses. Any multicast data sent to this
address is sent to all source ports on the switch and all receiver ports that have
elected to receive data on that multicast address. Each multicast address
corresponds to one television channel.
Note Each IP address translates to a multicast 48-bit MAC address. If an IP
address being configured translates (aliases) to a previously
configured MAC address or to any reserved multicast MACaddresses,
the command fails.
Step 4
mvr querytime value (Optional) Define the maximum time to wait for IGMP report memberships
on a receiver port before removing the port from multicast group membership.
The value is in units of tenths of a second. The default is 5 tenths or one-half
a second.
Step 5
mvr vlan vlan-id (Optional) Specify the VLAN in which multicast data is received; all source
ports must belong to this VLAN. The VLAN range is 1 to 1001.
The default is VLAN 1.
Step 6
mvr mode {dynamic | compatible} (Optional) Specify the MVR mode of operation:
• dynamic allows dynamic MVR membership on source ports.
• compatible provides for compatibility with Catalyst 2900 XL and
Catalyst 3500 XL switches and does not support IGMP dynamic joins on
source ports.
The default is compatible mode.
Step 7
end Exit configuration mode.
Step 8
show mvr
show mvr members
Verify the configuration.
Step 9
copy running-config
startup-config
(Optional) Save your entries in the configuration file.
Command Purpose
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