Chunk Flag Value,Chunk Flag Name,Reference
0x01,E bit,[RFC9260]
0x02,B bit,[RFC9260]
0x04,U bit,[RFC9260]
0x08,I bit,[RFC9260]
0x10,Unassigned,
0x20,Unassigned,
0x40,Unassigned,
0x80,Unassigned,