2631236 - ECDA 15.7 unable to start . . . Net-Library routine sybnet_listen() failed in srv__start_net Network error: status = 0

LogOCOSMessages MM/DD/YYYY 24HH:MM:SS.msmsms <ecdasrvnm> NULL NULL NULL Error: 16240 Severity: 10 State: 0 OS Error: -1 : Net-Library routine sybnet_listen() failed in srv__start_net Network error: status = 0 - Unable to determine Net-Library error  OS Error Text:  <SRV-Lib>
LogOCOSMessages MM/DD/YYYY 24HH:MM:SS.msmsms <ecdasrvnm> NULL NULL NULL Error: 16029 Severity: 20 State: 0 OS Error: -1 : Failed to start any network listeners  OS Error Text:  <SRV-Lib> Startup halted.
LogOCOSMessages MM/DD/YYYY 24HH:MM:SS.msmsms <ecdasrvnm> NULL NULL NULL Error: 16029 Severity: 20 State: 0 OS Error: -1 : Failed to start any network listeners  OS Error Text:  <SRV-Lib>

ECDA 15.7 sp5 on linux

attempt to start an ECDA server when the interfaces file has incorrect entries in it
       master tcp ether hostname <ip-address>              7000   * * *   incorrect . . . remove <space>hostname
       master tcp ether hostname <actual_hostname>   7000   * * *   incorrect . . . remove <space>hostname
       master tcp ether <ip-address>                              70000   * * *   incorrect . . . both ipv4 and ipv6 port number must be an unsigned 16-bit integer, so <= 65535
       master tcp ether <actual_hostname>                   70000   * * *   incorrect . . . both ipv4 and ipv6 port number must be an unsigned 16-bit integer, so <= 65535

$SYBASE/interfaces file has incorrect entries in it

edit $SYBASE/interfaces file and correct the entries . . .

       master tcp ether <ip-address>                             7000   * * *   correct
       master tcp ether <actual_hostname>                  7000   * * *   correct

KBA , BC-SYB-ECD , Enterprise Connect (ECDA) , Problem