lantz

Can you confirm that this problem happens using the OpenFlow reference controller ? (`--controller ref`)

Also if you are using Ryu's `simple_switch`, can you confirm that ryu run ryu.app.simple_switch --ofp-tcp-listen-port 6653 works correctly outside of Mininet? And inside of Mininet, can you confirm that the...

Can you perhaps provide a script or instructions to reproduce this in a mininet VM?

Note to get to that point I had to downgrade `dnspython` from 2.3.0 to 2.2.1 to avoid another error: ```... File "/usr/local/lib/python3.10/dist-packages/dns/zone.py", line 86, in class Zone(dns.transaction.TransactionManager): File "/usr/local/lib/python3.10/dist-packages/dns/zone.py", line...