How do I tune RHEL for better TCP performance over a specific network connection?
Issue
- We are transmitting a large amount of data over a WAN link and wish to tune the transfer to be as fast as possible
- We are trying to backhaul traffic from one datacenter to another and appear to be running into small TCP window sizes that are impacting the transmission speed
- We are looking for sysctl parameters which can be tuned to allow better performance over our network
- How do I accurately tune TCP socket buffer sizes?
Environment
- Red Hat Enterprise Linux
- Network connection known performance characteristics, such as a WAN connection with high throughput and high latency, but does not necessarily have to be a WAN
- TCP networking
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