Wan Optimization Support

General Category => General Discussion => : ahenning September 27, 2014, 06:22:53 PM

: Very high latency link
: ahenning September 27, 2014, 06:22:53 PM

Satellite links normally have latency in the +-500ms range, but in this test the latency is double at 1000ms. WAN link size is 1 Mbps.

http://www.youtube.com/watch?v=kaJQBTTjJE0

: Re: Very high latency link
: JohnNicholas May 07, 2017, 12:21:14 PM

In tests with TCP Acceleration disabled/enabled over 900Kbps, 800ms satellite link:

a.   100%[==============================>] 28,409,880  52.8KB/s   in 10m 10s
b.   100%[==============================>] 28,409,880   100KB/s   in 5m 47s

With all optimizations disabled, then testing with moderately contested bandwidth load and congestion, with only TCP Acceleration enabled, test time were consistently better up to 50%.

Since we know TCP Acceleration helps in Long Fat Networks, the objective of this test was to see what TCP Acceleration benefits are provided in congested, long *thin* links for example to reach max link bandwidth quicker and recover faster after congestion events.