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Color me confused. Just a week ago they posted "We also have server-side means to “hash away” and route around trouble spots, if they occur."

https://code.facebook.com/posts/360346274145943/introducing-...

Does the server side flow hash manipulation dependent on ip tuple manipulation? Only enabled for some hosts/devices? A bit disappointed, was hoping for clever dscp or mpls tag manipulation. If they rely on new streams with specific src ports its a lot less interesting, and less useful for long lived connections.



This problem has been ongoing for two years: the post you linked described their new data center design, which may not even be online yet.


They explicitly mention in the article that this may not apply to their new data center.




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