Hi, First, what Ryu application are you using? simple_switch_stp.py? If so, simple_switch_stp.py is one of the sample application of Ryu. In other words, Ryu does not require to use BPDU, just performing like STP switch by using simple_switch_stp.py.
If you want to recover a link failure with Ryu, I recommend you to use ryu.topology modules with --observe-links option of ryu-manager. https://github.com/osrg/ryu/tree/master/ryu/topology Thanks, Iwase On 2015年05月29日 10:55, Hm Balarama wrote: > Hello, > > I tested Ryu with loop topology. I used 3 switches and those are OF enabled. > I wanted how much time does Ryu recover a link failure when I remove cable. > So I changed DEFAULT_MAX_AGE in bpdu.py. Also I set DEFAULT_HELLO_TIME=1. > I tested 4 times. > DEFAULT_MAX_AGE =1 and average recovery time was 74 seconds > DEFAULT_MAX_AGE =2 and average recovery time was 72 seconds > DEFAULT_MAX_AGE =3 and average recovery time was 71 seconds > DEFAULT_MAX_AGE =5 and average recovery time was 74 seconds > It seems to me a little bit strange. I don't know why. > I expected DEFAULT_MAX_AGE=1 takes very short time than DEFAULT_MAX_AGE > =2,3,5 but it doesn't. > Could you please tell me why it happened? > > Thank you, > Tsogbayar. > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > ------------------------------------------------------------------------------ _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
