HEllo Thanks for your answer but i think you didn't understand me.
If you have a layer 2 triangle: 2 (non-root stp) machines (1 Cisco + 1 Linux)have 1 blocking and 1 forwarding ports 1 (root stp) machine (Linux) has 2 forwarding ports. You can try it by yourself, the case study is very simple, you just need one cisco router and 2 linux. The thing is on the non-root Linux machine, there are 2 forwarding ports which is NOT normal. This creates a loop. I think something special has to be changed on Linux ... Regards TRoopy ---------- Original Message ---------------------------------- From: "Nick Davey" <[EMAIL PROTECTED]> Date: Wed, 5 Dec 2007 10:01:40 -0500 >>From what I've seen both ends of the redundant link won't be blocking, one >will be forwarding on one end, and one will be blocking. If you refer to the >original spanning tree diagram drawing in this article: >http://en.wikipedia.org/wiki/Spanning_tree_protocol diagram 5 you'll see one >end of the redundant link is set to designated forwarding, and one is >blocking. I believe this is what you're describing? I think this is due to >spanning tree's requirement that one port on a segment must be chosen for a >forwarding, or designated role. Hope that helps. > >Nick > >On Dec 4, 2007 12:32 PM, Troopy . <[EMAIL PROTECTED]> wrote: > >> >> Hello, >> >> I tried to test the spanning tree on Vyatta. >> >> There is one problem with Vyatta and more precisely the Linux plateform. >> >> We made a triangle with two Linux/Vyatta router and a Cisco router. >> One of the Linux is set as the root STP. >> >> The Cisco router has a correct behaviour because it has >> a blocking and forwarding port >> The root Linux stp has a correct behaviour because it has >> two forwarding ports >> The problem is on the non-root stp Linux. It has >> 2 forwardind ports instead of 1 blocking and one fowarding port. >> >> I think something has to be changed on the Linux level but what? >> >> Regards >> >> TRoopy >> >> >> >> >> >> ______________________________________________________ >> Désirez vous une adresse éléctronique @suisse.com? >> Visitez la Suisse virtuelle sur http://www.suisse.com >> >> _______________________________________________ >> Vyatta-users mailing list >> Vyatta-users@mailman.vyatta.com >> http://mailman.vyatta.com/mailman/listinfo/vyatta-users >> > > ______________________________________________________ Désirez vous une adresse éléctronique @suisse.com? Visitez la Suisse virtuelle sur http://www.suisse.com _______________________________________________ Vyatta-users mailing list Vyatta-users@mailman.vyatta.com http://mailman.vyatta.com/mailman/listinfo/vyatta-users
