RFC 381 (rfc381) - Page 3 of 4

Three aids to improved network operation

RFC 381         Three Aids To Improved Network Operation    26 July 1972



    4       NOF                      Same

    5       RFNM                     Same

    6       Link Table Full          Unassigned

    7       Destination Dead         Destination Dead
                                        Bit 32=0 - the destination
                                          IMP is dead, or cannot be
                                          reached, or does not exist
                                        Bit 32=1 - the destination
                                          Host is dead or does not
                                          exist

    8       Error with identi-       Error in Data of Host-to IMP
            fication                 Message
                                        IMP's error flip-flop set
                                        on the data bits of a Host-
                                        to-IMP message identified
                                        by the given source and link

    9       Incomplete Transmission  Incomplete Transmission
                                        Bits 31,32=00 - the destination
                                           Host did not take the message
                                           for a long time
                                        Bits 31,32=01 - Host-to-IMP
                                           message too long (more
                                           than 8095 bits)
                                        Bits 31,32=10 - Host-to IMP
                                           message too slow.  The
                                           last message took more
                                           than 15 secs. between
                                           the first bit and the
                                           last bit, and was discarded
                                        Bits 31,32=11 - Host-to-
                                           IMP message lost in the
                                           subnet













Mc Quillan, et. al.