Hi all, i'm trying to do the Fast Failover tutorial but i'm having problems.
I'm using the following file to create the topology: https://github.com/jorgecorreia26/Floodlight-Module-Tutorial/blob/master/Example%202%20Python After I start the module and the topology, I open a xterm for switch 2a and perform a "tcpdump -i s2a-eth1 -n icmp". Then open a xterm for h1 and do "ping 10.0.0.2". I see traffic in switch s2a as it should. When trying the curl to call the the method toggle-path, REST API in the tutorial does not work and I get the error: Caused by: net.floodlightcontroller.core.internal.SwitchStateException: Switch: [OFSwitchBase DPID[00:00:00:00:00:00:00:2a]], State: [net.floodlightcontroller.core.internal.OFSwitchHandshakeHandler$MasterState@264daf93], received: [BARRIER_REQUEST], details: Switch should never send this message in the current state So I tried to set the link down. In the terminal I use "link s1 s2a down " These is the log I get:: 21:55:22.231 INFO [n.f.l.i.LinkDiscoveryManager:main] Inter-switch link removed: Link [src=00:00:00:00:00:00:00:2a outPort=1, dst=00:00:00:00:00:00:00:01, inPort=1] 21:55:22.231 WARN [n.f.l.i.L.s.notification:main] Inter-switch link removed: Link [src=00:00:00:00:00:00:00:2a outPort=1, dst=00:00:00:00:00:00:00:01, inPort=1] 21:55:22.247 WARN [n.f.c.i.C.s.notification:main] Switch 00:00:00:00:00:00:00:01 port s1-eth1 changed: DOWN 21:55:22.257 WARN [n.f.c.i.C.s.notification:main] Switch 00:00:00:00:00:00:00:2a port s2a-eth1 changed: OTHER_UPDATE But the ping stops, instead of activating switch 2b. Doing another ping nothing happens, not even Destination not reachable. Can someone please help me. Why the curl to invocate the toggle-path does not work? Is there another way to invoke it? Thanks in advance. Best regards Jorge
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