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Forum Discussion

Romain_DA_ROIT_'s avatar
Romain_DA_ROIT_
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Aug 12, 2015

Source Port reuse timer with SNAT automap

Hi,   Using a SNAT automap, is there any specific timer which prevent a source port to not be reused after a closed connection using that same source port ?   Romain  
application delivery
design
LTM
performance
Ravi_K__Malhotr's avatar
Ravi_K__Malhotr
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Aug 12, 2015

Ah, let me explain this way, covering few basics and interesting to read. 1. upon receiving a request, the Big IP System processes the request, entry added into a connection table. 2. and now the moment connection flow becomes idle, idle connection timer is initiated 3. and when connection reaches the idle session time-out, connection is terminated and also deleted from the connection table.

 

So, here is an answer for your query --> the same source port will not be used for any other request, if its still there in connection table, either be in active or idle session. once entry is deleted from the connection table, then source port is subject to be re-used.

 

--Ravi K. Malhotra--