Solved

TCP/IP stack goes into TIME_WAIT state on closing a socket ???

Posted on 1997-12-18
1
289 Views
Last Modified: 2013-12-23
Hi,

I am using Sun OS 5.5.1

I've written a small server program, which binds to port 8000, and listens
for incoming request.
When a client connects to it, it sends back some simple message like "Hello
World"

The client can send a special terminate message, in which case the server
closes the socket and terminates.

My problem is that after the client sends the terminate message ( and the
server shuts down ), I cannot immediately start the server, I get the
following error :
"Address 8000 already in use"

if I do a "netstat -f inet | grep 8000", I see that the port 8000 has gone
in TIME_WAIT state .
After some time the OS release this port, and I can restart my server.

Is there any way I can avoid this TIME_WAIT state ??, am I not closing the
server socket properly ?? ( I do a close( socket_id )  )

Is there any option I can set on the socket to avoid the TIME_WAIT state ??

Any help will be greatly appreciated....

Thanx,







0
Comment
Question by:AnantS
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 1

Accepted Solution

by:
rjhoward earned 100 total points
ID: 1583061
Try setting the SO_REUSEADDR socket option.  I believe this flags the socket as one that may be immediately reused.

0

Featured Post

Manage your data center from practically anywhere

The KN8164V features HD resolution of 1920 x 1200, FIPS 140-2 with level 1 security standards and virtual media transmissions at twice the speed. Built for reliability, the KN series provides local console and remote over IP access, ensuring 24/7 availability to all servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
During and after that shift to cloud, one area that still poses a struggle for many organizations is what to do with their department file shares.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question