Devices                                                ticlts(7D)



NAME
     ticlts, ticots, ticotsord - loopback transport providers

SYNOPSIS
     #include 


     #include 


     #include 


DESCRIPTION
     The devices known as  ticlts,  ticots,  and  ticotsord   are
     ``loopback  transport providers,'' that is, stand-alone net-
     works at the transport level. Loopback  transport  providers
     are  transport providers in every sense except one: only one
     host (the local machine) is ``connected to'' a loopback net-
     work.  Loopback  transports  present  a  TPI (STREAMS-level)
     interface to application processes and are  intended  to  be
     accessed via the TLI (application-level) interface. They are
     implemented as clone devices and support address spaces con-
     sisting  of ``flex-addresses,'' that is, arbitrary sequences
     of octets of length > 0, represented by a netbuf structure.


     ticlts is a  datagram-mode  transport  provider.  It  offers
     (connectionless) service of type TCLTS. Its default address
     size is TCLDEFAULTADRSZ. ticlts prints the following error
     messages (see  trcvuderr(3NSL)):

     TCLBADADR         bad address specification


     TCLBADOPT          bad option specification


     TCLNOPER          bound


     TCLPERBADSTATE    peer in wrong state



     ticots is a  virtual  circuit-mode  transport  provider.  It
     offers  (connection-oriented)  service  of  type TCOTS. Its
     default address size is TCODEFAULTADRSZ. ticots prints the
     following disconnect messages (see  trcvdis(3NSL)):

     TCONOPER               no listener on destination address




SunOS 5.11           Last change: 3 Jul 1990                    1






Devices                                                ticlts(7D)



     TCOPERNOROMONQ        peer has no room on connect queue


     TCOPERBADSTATE         peer in wrong state


     TCOPERINITIATED        peer-initiated disconnect


     TCOPROVIDERINITIATED    provider-initiated disconnect



     ticotsord is  a  virtual  circuit-mode  transport  provider,
     offering  service  of  type  TCOTSORD (connection-oriented
     service with orderly release). Its default address  size  is
     TCODEFAULTADRSZ.  ticotsord  prints the following discon-
     nect messages (see trcvdis(3NSL)):

     TCONOPER               no listener on destination address


     TCOPERNOROMONQ        peer has no room on connect queue


     TCOPERBADSTATE         peer in wrong state


     TCOPERINITIATED        provider-initiated disconnect


     TCOPROVIDERINITIATED    peer-initiated disconnect


USAGE
     Loopback transports support a local  IPC  mechanism  through
     the  TLI  interface. Applications implemented in a transport
     provider-independent manner on a client-server  model  using
     this   IPC  are  transparently  transportable  to  networked
     environments.


     Transport provider-independent applications must not include
     the headers listed in the synopsis section above. In partic-
     ular, the options are (like all transport provider  options)
     provider dependent.


     ticlts and ticots support the same service types (TCLTS and
     TCOTS) supported by the OSI transport-level model.





SunOS 5.11           Last change: 3 Jul 1990                    2






Devices                                                ticlts(7D)



     ticotsord supports the same service  type  (TCOTSORD)  sup-
     ported by the TCP/IP model.

FILES
     /dev/ticlts


     /dev/ticots


     /dev/ticotsord

SEE ALSO
     trcvdis(3NSL), trcvuderr(3NSL)









































SunOS 5.11           Last change: 3 Jul 1990                    3