Symptom
+ Documentation is mentioning that OMF mode is by default disabled on N9Ks.
+ Output of `show ip igmp snooping` is showing OMF enabled by default:
`show ip igmp snooping`
Global IGMP Snooping Information:
IGMP Snooping enabled
Optimised Multicast Flood (OMF) enabled < -------
IGMPv1/v2 Report Suppression enabled
IGMPv3 Report Suppression disabled
Link Local Groups Suppression enabled
IGMP Snooping information for vlan 1
IGMP snooping enabled
Lookup mode: IP
Optimised Multicast Flood (OMF) enabled < -------
It is not possible to enable or disabled OMF:
FX(config)# no ip igmp snooping optimise-multicast-flood
^
% Invalid command at '^' marker.
FX(config)# ip igmp snooping optimise-multicast-flood
^
% Invalid command at '^' marker.
Conditions
+ N9K/N3K switches running
+ Software 7.0(3)I7(x), 9.2(x), 9.3(x), 10.2(x)
Workaround
No workaround needed, problem seems to be purely cosmetic.
Further Problem Description
