This object allows specification of the tag management operation on the S-TAG. Supported types are 'push', 'pushvid', 'swaptag', 'swapvid' and 'none'. If the type is 'push', the VLAN Id (f3EncapFlowPointSTagVlanId) and priority (f3EncapFlowPointSTagVlanPriority) are pushed onto the frame; if the type is 'pushvid', only the VLAN Id (12 bits) is pushed, the Priority is copied from incoming tag's priority; if the type is 'swaptag', both VLAN Id and Priority (15 bits) are swapped with the specified f3EncapFlowPointSTagVlanId and f3EncapFlowPointSTagVlanPriority; if the type is 'swapvid', only the VLAN Id (12 bits) are swapped with the specified f3EncapFlowPointSTagVlanId; if the type is 'none', no S-TAG management is performed.