Re: [Ryu-devel] Ryu appears unaware of status change of powered-off switch

2017-08-09 Thread Moh'd Reza Abbasi
Hello Mathew, I was wondering do you still have the same problem while using topology discovery module? Regards, Reza On Wed, Aug 9, 2017 at 3:41 PM, Matthew Hayes < matthew_john_ha...@hotmail.com> wrote: > Hi all, > > I've found that Ryu does not detect the disconnection of a switch when TCP

[Ryu-devel] Ryu appears unaware of status change of powered-off switch

2017-08-09 Thread Matthew Hayes
Hi all, I've found that Ryu does not detect the disconnection of a switch when TCP does not signal the event with a FIN or RST (examples: switch powered off or backhaul cable disconnected). This appears to be because the TCP session remains in half-open established state in the controller