Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
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Book Title
To disable IGMP snooping on a VLAN interface, use the
no ip igmp snooping vlan
vlan-id
global
configuration command for the specified VLAN number (for example, vlan1).
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.
enable
2.
configure terminal
3.
ip igmp snooping vlan
vlan-id
immediate-leave
4.
end
5.
show ip igmp snooping
6.
copy running-config startup-config
DETAILED STEPS
Step 5
show ip igmp snooping
[
vlan
vlan-id
]
Example:
Router# show ip igmp snooping vlan 1
Displays snooping configuration.
•
(Optional)
vlan-id
is the number of the VLAN.
Step 6
copy running-config startup-config
Example:
Router# copy running-config startup-config
(Optional) Saves your configuration to the startup
configuration.
Command
Purpose
Command
Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
•
Enter your password if prompted.
Step 2
configure
terminal
Example:
Router# configure terminal
Enters global configuration mode.