ip tcp adjust-mss command

[mmendis]

Hi all ,

Is it ok to configure ip tcp adjust-mss command on ISP level Gateway router ???

[Joseph W. Doherty]

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Posting

Sure.  Although, I'm curious why you would.

[mmendis]

Thanks Joseph, Could you please refer this thread ?

https://supportforums.cisco.com/thread/2241302

[mmendis]

By enabling this arn't we overloading the router ???

[Joseph W. Doherty]

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Posting

No, in fact, it often decreases the load on the router (especially if fragmentation is avoided).

BTW, mss-adjust shouldn't be needed for the network to transfer data, it's a optimization feature.  If it is needed, there's an issue with PMTUD. 

[mmendis]

Thanks Joseph,

If it's using as a optimization feature why I shouldn't use it ???

[Joseph W. Doherty]

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Posting

If used appropriately, don't see a reason why you wouldn't want to use it.

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Posting

[mmendis]

Thanks Joseph,

Is there any proper document I can follow before I implement it ?

[Joseph W. Doherty]

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The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

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Posting

Oriented for tunnels, but adresses avoiding fragmentation, http://www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtml