Speed performance between servers over site to site tunnel
We have site to site (3rd Party) tunnel to Azure from MX100.
The commissioned Internet speed is 250M, however, when we test the speedtest or do throughout test it maximum goes to 160M.
This is not the major concern though - the main issue is that servers on either side of the tunnel show poor network speed. Once this was reported, we did Iperf tests and the number are showing maximum 30Mbps as the bandwidth when using TCP mode. With UDP, it jumps to 150M. Normal speedtest from the server behind the MX shows similar 150M speed as well.
Any suggestions? Also I want to understand why iPerf results are so different from the speedtest, my logic says that speedtest is also using TCP as we use http browser to do the test.
Thanks for going through the above notes. Any suggestions or feedback will be highly appreciated.