Cisco HWIC-4ESW - EtherSwitch HWIC Switch User Manual page 52

How to Configure EtherSwitch HWICs
DETAILED STEPS
Command or Action
Step 1
enable
Example:
Router> enable
Step 2
configure terminal
Example:
Router# configure terminal
Step 3
ip igmp snooping
Example:
Router(config)# ip igmp snooping
or
Step 4
ip igmp snooping vlan vlan-id
Example:
Router(config)# ip igmp snooping vlan 100
Step 5
end
Example:
Router(config)# end
Step 6
show ip igmp snooping
Example:
Router# show ip igmp snooping
Step 7
copy running-config startup-config
Example:
Router# copy running-config startup-config
Enabling IGMP Immediate-Leave Processing
When you enable IGMP Immediate-Leave processing, the EtherSwitch HWIC immediately removes a
port from the IP multicast group when it detects an IGMP version 2 Leave message on that port.
Immediate-Leave processing allows the switch to remove an interface that sends a Leave message from
the forwarding table without first sending out group-specific queries to the interface. You should use the
Immediate-Leave feature only when there is only a single receiver present on every port in the VLAN.
Use the following steps to enable IGMP Immediate-Leave processing.
SUMMARY STEPS
1.
2.
52
enable
configure terminal
Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
Purpose
Enables privileged EXEC mode.
Enter your password if prompted.
•
Enters global configuration mode.
Globally enables IGMP snooping in all existing VLAN
interfaces.
Globally enables IGMP snooping on a specific VLAN
interface.
Enter the VLAN number.
•
Returns to privileged EXEC mode.
Displays snooping configuration.
(Optional) Saves your configuration to the startup
configuration.