------------------------------------,
Dispatch Page Switch    = 1         |
CCNx Content Dispatch   = 3         |
Fixed Header            = 2         |
-----------------------,            |
Name                   |            |
  NameSegments          = n/2 +     |
                       |  comps_n    = 89 + n/2 + comps_n + clen
-----------------------'            |
ExpiryTime              = 8         |
Payload                 = 1 + clen  |
T_HMAC-SHA256           = 32        |
SignatureTime           = 8         |
ValidationPayload       = 34        |
------------------------------------'