Has anyone seen this odd behavior before?
We have a L2 WAN that is rate-limited to 600Mbps, with no filtering or firewalling between the two sites. When transferring files via ftp between two windows 2003 server machines across this link, the throughput is limited to 180Mbps, every time. When using Windows 2008 servers, I am able to hit 550 to 580Mbps, but also hit the 180Mbps limit on occasion. Also, when using a Fluke Etherscope II, I am able to hit 580Mbps with no issues consistently.
Has anyone else seen this hard limit of 180Mbps before?
Any help would be greatly appreciated.