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Errors are important, even very small percentages
UDP and multicast are extremely sensitive to frame losses (NFS is particularly sensitive).
Long ack times and large transfer sizes make the problem worse
- Are 32K NFS frames much worse than 8K?
- Does shortening the 'timeo' in the mount options down from 1.1 seconds help?
At GbE speed, throughput losses can hit 7.5% with a frame loss rate of 1/10,000%.
Notes: