Alcatel-Lucent 6850-48 Network Guide

Modifying IPMS Parameters

Configuring IP Multicast Switching

page 42-20

OmniSwitch AOS Release 6 Network Configuration Guide

-> ip multicast spoofing

To restore the IGMP spoofing to its default setting (i.e., disabled).

You can also disable IGMP spoofing on the specified VLAN by entering:

-> ip multicast vlan 2 spoofing disable

Or, as an alternative, enter:

-> ip multicast vlan 2 spoofing

To restore the IGMP spoofing to its default setting (i.e., disabled).

You can remove an IGMP spoofing entry on the specified VLAN and return to its default behavior by 
entering:

-> no ip multicast vlan 2 spoofing

By default, IGMP zapping (i.e., processing membership and source filter removals immediately without 
waiting for the protocol’s specified time period – this mode facilitates IP TV applications looking for 
quick changes between IP multicast groups) is disabled on a switch. The following subsections describe 
how to enable and disable IGMP zapping by using the 

command.

To enable IGMP zapping on the system if no VLAN is specified, use the 

 command 

as shown below:

-> ip multicast zapping enable

You can also enable IGMP zapping on the specified VLAN by entering:

-> ip multicast vlan 2 zapping enable

To disable IGMP zapping on the system if no VLAN is specified, use the 

ip multicast zapping 

command 

as shown below:

-> ip multicast zapping disable

Or, as an alternative, enter:

-> ip multicast zapping

To restore the IGMP zapping to its default setting (i.e., disabled).

You can also disable IGMP zapping on the specified VLAN by entering:

-> ip multicast vlan 2 zapping disable

Or, as an alternative, enter:

-> ip multicast vlan 2 zapping

To restore the IGMP zapping to its default setting (i.e., disabled).