Type,Description,Reference
0,Reserved,[RFC7487]
1,BFD Identifiers Sub-TLV,[RFC7487]
2,Negotiation Timer Parameters Sub-TLV,[RFC7487]
3,BFD Authentication Sub-TLV,[RFC7487]
4,Traffic Class Sub-TLV,[RFC7487]
5-65532,Unassigned,
65533-65534,Reserved for Experimental Use,[RFC7487]
65535,Reserved,[RFC7487]