Hi all,
I am not on this mailing list. So, all responses should be sent
to my personal address.
I just noticed somewhat confusing network behavior when I was
using wireshark to understand why certain connections have been
unexpectedly slow.
My 11.3 stable (latest update 2019-06-23) seems to do this
according to wireshark...
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
My system has this set, though...
net.inet.tcp.ecn.enable: 1
At the same time the peer system was reporting ECN capability...
.... ..10 = Explicit Congestion Notification: ECN-Capable Transport
codepoint '10' (2)
Apparently increasing the value in...
net.inet.tcp.ecn.maxretries
doesn't help.
What should I make of this? Is the ECN implementation in 11.3 somehow
faulty or is this something more down to earth?
--jau
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