Saturday, March 16, 2019

To Flow Control or not to Flow Control

I’ve have been trying to get to the bottom of our paused frames appear after we switched to 10GB on two servers and it appears that it’s more than likely due to one server running off SSD’s trying to move files over to Platter drives on the other is causing some kind of caching issue and Flow Control was the protocol generating these pauses.

Having said that I have been reading conflicting information on Flow Control and wether is good or bad. Windows now seems to enable it on both RX/TX by default but I am not sure if we should be disabling that. Does anyone know anything on the pros and cons of flow control?



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