Friday, September 24, 2021

Do anyone know the default TCP MSS between two VMs in azure?

The default MTU for Azure VMs is 1,500 bytes. The Azure Virtual Network stack will attempt to fragment a packet at 1,400 bytes. So I take 1400 as the reference MTU on their SDN, So i am assuming to have a tcp mss of 1400-20(tcp header)-20(ipheader) = 1360. Any thoughts?



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