Value,Name,Data Plane,Reference
0,Reserved,,[RFC8491]
1,Base MPLS Imposition MSD,MPLS,[RFC8491]
2,ERLD-MSD,MPLS,[RFC9088]
3,Readable Label Depth,MPLS,[RFC9789]
4-40,Unassigned,,
41,SRH Max SL,SRv6,[RFC9352]
42,SRH Max End Pop,SRv6,[RFC9352]
43,Unassigned,,
44,SRH Max H.encaps,SRv6,[RFC9352]
45,SRH Max End D,SRv6,[RFC9352]
46-250,Unassigned,,
251-254,Experimental Use,,[RFC8491]
255,Reserved,,[RFC8491]