TCP Port Reuse After Closing

After closing a TCP port there is a period in which a new connection can not be opened again. This is due to the TIME_WAIT state in the TCP protocol.

This article, titled “TIME_WAIT and its design implications for protocols and scalable client server systems”, explains the issue very well. As a quick solution, the flag SO_REUSEADDR can be used when opening a new socket. Though it does not really release the resource it occupies.




About minghuasweblog

a long time coder
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One Response to TCP Port Reuse After Closing

  1. Pingback: Network IO Code | minghuasweblog

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