[e2e] Why do we need TCP flow control (rwnd)?

[Fred Baker]

On Jun 30, 2008, at 8:46 AM, John Heffner wrote:

> This is only mostly true -- TCP can maintain a zero window
> indefinitely, but the receiver is dropping segments, the sender cannot
> distinguish between the network's and the receiver's drops, and will
> eventually time out and reset the connection.

it gets worse. You might enjoy

http://tools.ietf.org/html/draft-ananth-tcpm-persist
   "Clarification of sender behaviour in persist condition.", Murali  
Bashyam,
   Mahesh Jethanandani, Anantha Ramaiah, 28-Jun-08,
   <draft-ananth-tcpm-persist-00.txt>