1 | initial version |
Hi,
your second guess is right - not ECN-capable transport
means ECN is not used in this connection.
If it were used you'd see 10 – ECN Capable Transport, ECT(0)
or 01 – ECN Capable Transport, ECT(1)
.
In case of network congestion AND if ECN is used you'd see 11 – Congestion Encountered, CE
.
Value of 00
is quite common in general purpose networks outside of datacenters.