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Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 14 Configuring IGMP Snooping and MVR
Displaying MVR Information
This example shows how to configure a port as a receiver port, statically configure the port to receive
multicast traffic sent to the multicast group address, configure Immediate Leave on the interface, and
verify the results.
Switch(config)# mvr
Switch(config)# interface gigabitethernet0/17
Switch(config-if)# mvr type receiver
Switch(config-if)# mvr vlan 22 group 228.1.23.4
Switch(config-if)# mvr immediate
Switch(config)# end
Switch# show mvr interface gigabitethernet0/17
Type: RECEIVER Status: ACTIVE Immediate Leave: ENABLED
Displaying MVR Information
You can display MVR information for the switch or for a specified interface. Beginning in privileged
EXEC mode, use the commands in Table 14-6 to display MVR configuration:
Configuring IGMP Filtering and Throttling
In some environments, for example, metropolitan or multiple-dwelling unit (MDU) installations, you
might want to control the set of multicast groups to which a user on a switch port can belong. You can
control the distribution of multicast services, such as IP/TV, based on some type of subscription or
service plan. You might also want to limit the number of multicast groups to which a user on a switch
port can belong.
With the IGMP filtering feature, you can filter multicast joins on a per-port basis by configuring IP
multicast profiles and associating them with individual switch ports. An IGMP profile can contain one
or more multicast groups and specifies whether access to the group is permitted or denied. If an IGMP
Table 14-6 Commands for Displaying MVR Information
show mvr Displays MVR status and values for the switch—whether MVR is enabled or disabled,
the multicast VLAN, the maximum (256) and current (0 through 256) number of
multicast groups, the query response time, and the MVR mode.
show mvr interface [interface-id]
[members [vlan vlan-id]]
Displays all MVR interfaces and their MVR configurations.
When a specific interface is entered, displays this information:
• Type—Receiver or Source
• Status—One of these:
–
Active means the port is part of a VLAN.
–
Up/Down means that the port is forwarding or nonforwarding.
–
Inactive means that the port is not part of any VLAN.
• Immediate Leave—Enabled or Disabled
If the members keyword is entered, displays all multicast group members on this port or,
if a VLAN identification is entered, all multicast group members on the VLAN. The
VLAN ID range is 1 to 4094.
show mvr members [ip-address] Displays all receiver and source ports that are members of any IP multicast group or the
specified IP multicast group IP address.