no -a and tcp_keepint ?? Post: 302297594

Sponsored Content

Operating Systems AIX no -a and tcp_keepint ?? Post 302297594 by bakunin on Friday 13th of March 2009 11:33:48 PM

03-14-2009

Registered User

In principle: a TCP connection is a so-called "virtual channel", think of it like a telephone call: you ring someone, he picks up the call - until one of you ends this call you are connected. The same principle applies to TCP: a connection is initiated, established and after some time removed. You can monitor all this with the "netstat" utility.

After some time an idle connection is removed automatically to preserve resources of the network stack. How long the system waits and how it determines what comprises an "idle" connection is subject of the parameters you asked for. Most of the values are seconds or milliseconds.

There is an arcane fountain of knowledge you could tap for more information called the "man pages". In this case the man pages of "no", which explain the parameters in painstaking detail. I suggest you read a good book about TCP/IP concepts and protocol mechanics (i always suggest W. Richard Stevens "TCP/IP Illustrated" and Andrew Tanenbaums "Computer Networks") first.

I hope this helps.

bakunin

bakunin

View Public Profile for bakunin

Find all posts by bakunin

LEARN ABOUT MINIX

tcp.h

tcp.h(3HEAD)                                                          Headers                                                         tcp.h(3HEAD)

NAME

       tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP)

SYNOPSIS

       #include <netinet/tcp.h>

DESCRIPTION

       The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level:

       TCP_NODELAY     Avoid coalescing of small segments.

       The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with
       getsockopt().

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Standard                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5)

SunOS 5.10                                                          10 Sep 2004                                                       tcp.h(3HEAD)