How to MSS adjustment for TCP applications ?

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I want to adjust-mss of an interface to 1390. How can I do it in EXOS 16.2.1.6?
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Weda

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Posted 1 year ago

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Stephen Williams, Employee

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You can change the MTU on our switches (default is 1500).  Which includes the MAC, IP, TCP, vlan headers.

The below wiki page has a example calculation from MSS to MTU.  Hope this helps

https://en.wikipedia.org/wiki/Maximum_segment_size
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Weda

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I want to adjust mss to 1390 in order to have a symmetry with 2 WAN connections.
but  I can set MTU as 1500. Below that, it is not allowed.
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Stephen Williams, Employee

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I would think the mss value would be set on the application.  Our switch doesn't look into the payload to check the MMS(maximum segment size).  We look at the MTU.
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Bin, Employee

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Hello Weda,

Here is the reference about how EXOS MTU works.

Show size of MTU EXOS
https://community.extremenetworks.com/extreme/topics/show-size-of-mtu-exos 

Hope it will help you.

Best regards,
Bin