This object indicates the data link layer frame format that frames must have to match this L2 classifier entry. A value of 'ethernetII(1)' indicates that only Ethernet II format frames will match this classifier component. A value of 'snap(2)' indicates that only IEEE 802 SNAP format frames will match this classifier component. A value of 'llc(3)' indicates that only IEEE 802 LLC format frames will match this classifier component. A value of 'ignore(4)' means that the frame, format will not be considered when determining whether a frame matches this classifier entry. Version 2 attribute.