Obviously, I would prefer another mapping like so:
6. Mapping to TCP socket.
To use a TCP connection to transport IPP messages a new port number
has to be defined. The suggested number to be registered with the IANA
is NNN. When using this method, an IPP server opens the socket in
LISTEN mode and a client connects to it with an unused source port in
the unrestricted range. This socket pair is the unique identifier for
the connection. Once the connection reaches ESTABLISHED state, it
transports at least one complete IPP message exchange. One complete
IPP message exchange is defined by one Request-Message followed by one
Response-Message. A multi-segment print message is treated as one
request. After the exchange the TCP connection can be disconnected by
the server but should stay up to support further transactions. An idle
timer of NN minutes must be used to terminate the connection if the
option of keeping it up is used.
-- Alex Bochannek Phone & Fax : +1 408 526 51 91 Senior Network Analyst Pager : +1 408 485 90 92 Engineering Services Alpha Pager : (800) 225-0256 PIN 104536 Cisco Systems, Inc. Email : abochannek@cisco.com 170 West Tasman Drive, Bldg. E Pager Email : abochannek@beeper.cisco.com San Jose, CA 95134-1706, USA