Mvr Configuration Guidelines And Limitations; Configuring Mvr Global Parameters - Cisco WS-CBS3032-DEL Software Configuration Manual

Chapter 24 Configuring IGMP Snooping and MVR

MVR Configuration Guidelines and Limitations

Follow these guidelines when configuring MVR:
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Configuring MVR Global Parameters

You do not need to set the optional MVR parameters if you choose to use the default settings. If you do
want to change the default parameters (except for the MVR VLAN), you must first enable MVR.
For complete syntax and usage information for the commands used in this section, see the command
Note
reference for this release.
Beginning in privileged EXEC mode, follow these steps to configure MVR parameters:
Command
Step 1 configure terminal
Step 2
mvr
Step 3 mvr group ip-address [count]
Step 4 mvr querytime value
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Receiver ports can only be access ports; they 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 (MVR group addresses) that can be configured on a
switch (that is, the maximum number of television channels that can be received) is 256.
Because MVR on the switch uses IP multicast addresses instead of MAC multicast addresses,
aliased IP multicast addresses are allowed on the switch. However, if the switch is interoperating
with Catalyst 3550 or Catalyst 3500 XL switches, you should not configure IP addresses that alias
between themselves or with the reserved IP multicast addresses (in the range 224.0.0.xxx).
Do not configure MVR on private VLAN ports.
MVR is not supported when multicast routing is enabled on a switch. If you enable multicast routing
and a multicast routing protocol while MVR is enabled, MVR is disabled, and you receive a warning
message. If you try to enable MVR while multicast routing and a multicast routing protocol are
enabled, the operation to enable MVR is cancelled, and you receive an error message.
MVR can coexist with IGMP snooping on a switch.
MVR data received on an MVR receiver port is not forwarded to MVR source ports.
MVR does not support IGMPv3 messages.
Purpose
Enter global configuration mode.
Enable MVR on the switch.
Configure an IP multicast address on the switch or use the count parameter to
configure a contiguous series of MVR group addresses (the range for count is
1 to 256; the default is 1). 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 would correspond to
one television channel.
(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 range is 1 to 100, and the
default is 5 tenths or one-half second.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
Configuring MVR
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