STYLE class = 8.
+-------------+-------------+-------------+-------------+ | Flags | Option Vector | +-------------+-------------+-------------+-------------+
(None assigned yet)
A set of bit fields giving values for the reservation options. If new options are added in the future, corresponding fields in the option vector will be assigned from the least-significant end. If a node does not recognize a style ID, it may interpret as much of the option vector as it can, ignoring new fields that may have been defined.
The option vector bits are assigned (from the left) as follows:
19 bits: Reserved
2 bits: Sharing control
01b: Distinct reservations
10b: Shared reservations
11b: Reserved
3 bits: Sender selection control
001b: Wildcard
010b: Explicit
011b - 111b: Reserved
The low order bits of the option vector are determined by the style, as follows:
WF 10001b FF 01010b SE 10010b