import "protocol.proto"; package OstProto; message Vlan { // VLAN presence/absence optional bool is_tpid_override = 10; // VLAN values optional uint32 ctpid = 13; optional uint32 cvlan_tag = 14; // includes prio, cfi and cvlanid optional uint32 stpid = 15; optional uint32 svlan_tag = 16; // includes pcp, de and svlanid } extend Stream { optional Vlan vlan = 126; }