hpSwitchFilterProtocolType 1.3.6.1.4.1.11.2.14.11.5.1.7.1.8.1.1.5

This variable is valid only if a level-3 filter was defined. It will be ignored otherwise. This variable will contain either a etherType (DIX Ethernet) or SAP(IEEE 802) value of the level-3 protocol.