I have a company gateway that is connected to a 30/30 Fiber connection, network termination point is a MRV OS-904. It acts as a firewall/router for the DMZ/hosts/lans behind.
Software: CentOS 6.9, bare minimum install, all latest patches. Hardware: Xeon CPU, Intel server MB with two Intel PRO 1000 (e1000, e1000e) network cards, adaptec RAID, 8GB RAM
On the hosts/lan behind I can happily achieve 28.8 mbs – it seems it’s being capped at that speed by the provider.
However, on the host itself I cannot get passed 820k/s max, even if I switch off Iptables and anything else that could interfere with the download/upload bandwidth.
I have no idea why this is the case – It only matters when I need to “yum update” as the updates take 4 times longer than on the CentOS DMZ hosts behind it – but yes, its rather annoying!
Where do I need to look?
What am I missing?