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... Transmission Control Protocol (TCP) is intended for use as a highly
reliable host-to-host protocol between hosts in packet-switched computer
communication networks ...
... Transmission Control Protocol (TCP) is intended for use as a highly
reliable host-to-host protocol between hosts in packet-switched computer
communication networks ...
... TCP) is intended for use as a highly
reliable host-to-host protocol between hosts in packet-switched computer
communication networks, and in interconnected systems of such networks ...
... applications. The TCP provides for reliable inter-process
communication between pairs of processes in host computers attached to
distinct but interconnected computer communication networks. Very few
...
... Much of this document is written in the context of TCP implementations
which are co-resident with higher level protocols in the host
computer. Some computer systems will be connected to networks via
...
... implementable even for the front-end case, as long as a suitable
host-to-front end protocol is implemented.
...
... service in a multinetwork environment. The TCP is
intended to be a host-to-host protocol in common use in multiple
networks.
...
... service in a multinetwork environment. The TCP is
intended to be a host-to-host protocol in common use in multiple
networks.
...
...
To allow for many processes within a single Host to use TCP
communication facilities simultaneously, the TCP ...
... host. Concatenated with the network
and host addresses from the internet communication layer ...
... binding of ports to processes is handled independently by each
Host. However, it proves useful to attach frequently used processes
(e.g., a "logger" or timesharing service) to fixed sockets ...
...
Since connections must be established between unreliable hosts and
over the unreliable internet communication system, a handshake
mechanism ...
...
The internetwork environment consists of hosts connected to networks
which are in turn interconnected via gateways ...
... networks, the gateways, and the hosts support an interprocess
communication system that provides two-way data flow on logical
...
... The term packet is used generically here to mean the data of one
transaction between a host and its network. The format of data blocks
exchanged within the a network ...
... Processes are viewed as the active elements in host computers (in
accordance with the fairly common definition of a process as a program
in execution). Even terminals ...
... Datagrams may also carry security information to permit
host and gateways that operate in multilevel secure environments to
properly segregate datagrams ...
... The Host Environment ...
... front-end processor. However, in such an implementation, a
host-to-front-end protocol must provide the functionality to support
the type of TCP ...
... datagrams addressed to TCP modules in hosts anywhere in the internet
system. These calls have parameters for passing the address ...
... header carries several information fields, including the source and
destination host addresses [2]. A TCP header ...
... header, supplying information specific to the TCP protocol. This
division allows for the existence of host level protocols other than
TCP.
...
...
This specification provides that hosts which "crash" without
retaining any knowledge of the last sequence numbers transmitted on
...
... Lifetime (MSL)
in the internet system of which the host is a part. In the
paragraphs below, an explanation for this specification is given.
TCP ...
... entered into the network output queue at a source host. The
duplicate detection and sequencing algorithm in the TCP ...
...
Even hosts which can remember the time of day and used it to select
initial sequence number values are not immune from this problem
...
... TCP on a particular connection. Now suppose,
at this instant, the host crashes, recovers, and establishes a new
incarnation of the connection. The initial sequence number ...
...
The problem is that the recovering host may not know for how long it
crashed nor does it know whether there are still old duplicates in
the system from earlier connection ...
... segments for one MSL after recovery from a crash- this is the "quite
time" specification. Hosts which prefer to avoid waiting are
willing to risk possible confusion of old and new packets at a given
destination ...
... connections.
Obviously, even where a user selects to "wait," this is not
necessary after the host has been "up" for at least MSL seconds.
...
... security paramaters may be used even in a non-secure environment
(the values would indicate unclassified data), thus hosts in
non-secure environments must be prepared to receive the security
parameters ...
... BBN Report 1822, "The Specification of the Interconnection of
a Host and an IMP". The specification of interface between a
...
... host ...
... A source or destination address specific to the host level. ...
... Transmission Control Protocol: A host-to-host protocol for
reliable communication in internetwork environments. ...
... Transmission Control Protocol: A host-to-host protocol for
reliable communication in internetwork environments. ...