269a91b8_ch_for_VMware_vSphere____Cisco__1_New_and_Changed_Information_Feature
[Description] After configuration failure, a port profile and its member interfaces are rolled back to the last good configuration. [Changed in release] 4.2(1)SV1(4) [Where Documented] Information About Rollback to a Consistent Configuration [Feature] 
Port Profile Rollback
Cisco Nexus 1000V Port Profile Configuration Guide, Release 4.2(1)SV2(1.1) - New and Changed Information [Cisco Nexus 1000V Switch for VMware vSphere] - Cisco