Hi all,

Section 7.6. starts the explanation of Persistent Congestion with

> When a sender establishes loss of all in-flight packets...

Does this mean that packets that do not count as in-flight (e.g. a packet that 
contains only an ACK frame) are ignored here?

To refer to the example in section 7.6.3. What if at t=4.5 a packet were send 
with only an ACK frame, which gets acknowledged along with the last sent 
ack-eliciting packet with the ack received at t=12.2? Would this be still a 
persistent congestion or not?

Timo

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