On 08/22/2016 01:37 PM, David Collier-Brown via talk wrote:

Bufferbloat happens where a slower link meets a faster one, and the
symptoms are indeed insane latency when doing anything that has to
pass through the same buffer as a bulk transfer.

TCP should detect the slow transfer and back down the transmit rate. 
When buffers overflow, they're supposed to drop packets.

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*We* know that, but people doing routers don't. They coded to never drop packets, and added massive buffering to support that. Net result? They broke TCP.

--dave

-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb@spamcop.net           |                      -- Mark Twain