Good day gentlemen and ladies,
I am seeing slower transfers across my WAN than I would like and I want to see if someone more knowledgeable than me has any input... This is my first environment that actually has relatively fast WAN links, so I'm not familiar with what limitations I could be bumping against here.
Here's my setup:
Site A , Datacenter has a Comcast 1Gb/1Gb connection with a Meraki MX100 which boasts a 500mbps VPN throughput
Site B, Remote site has a Comcast 250/250mbps connection with a Meraki MX67-C which boasts 200mbps throughput
These sites are just a few miles apart and response time from DC to clients inside remote site is consistently 1ms. Switching is all Meraki MS series, and fairly new.
When transferring files between sites from Windows to Windows (Win10, Server 2012/2016) the fastest I ever see file transfers is 9-10MB/s (70-80mbps). Much below the theoretical limit of 200mbps between these sites.
One thing I've noticed in testing is that UDP traffic can hit 200+mbps from A to B, at the cost of being lossy and bogging down other network traffic. (See pic https://imgur.com/a/gwjzPWX , this was ran from Site B, so the down speed is "down" from DC to remote site).
If I test internally on each LAN I see transfer speeds of 60+MB/s (480mbps) so the hardware involved seems capable.
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