C-Type,Description,Reference
0,Reserved,
1,Interface Switching Type,[RFC4204]
2,Wavelength,[RFC4204]
3,Link_GroupId,[RFC4209]
4,SRLG,[RFC4209]
5,BER_Estimate,[RFC4209]
6,Optical_Protection,[RFC4209]
7,Total_Span_Length,[RFC4209]
8,Administrative_Group,[RFC4209]
9,Data Channel Status,[RFC5818]
10-247,Unassigned,
248-255,Private Use,[RFC4204]