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List:       openvswitch-discuss
Subject:    [ovs-discuss] How to prevent loop formation in openvswitches
From:       jpettit () nicira ! com (Justin Pettit)
Date:       2011-01-27 16:56:06
Message-ID: 9CA92173-FC6D-43B3-8339-50492C51513B () nicira ! com
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Assuming you are referring to the software OpenFlow reference implementation, I don't \
think it ever supported STP in any meaningful way. Typically, I've seen STP \
implemented by using the OFPPC_NO_FLOOD flag on the port, which is manually toggled \
by the controller.  Unless you are talking about a different mechanism, that should \
also work for you on Open vSwitch.  Depending on how old your source code is, we \
fixed a bug related to that in October:

	http://openvswitch.org/pipermail/dev_openvswitch.org/2010-October/003659.html

--Justin


On Jan 27, 2011, at 4:20 AM, sachin sharma wrote:

> 
> Dear All,
> 
> I am working with openvswitches. But the problem I am observing is the loop \
> formation in my the routing AI, available in NOX. I found  that openflow switches \
> has stp option to enable or disable spanning tree protocol. But the same option is \
> not available with openvswitches. The part of code which is available with openflow \
> for stp is removed from openvswitch. 
> Is there any similar option or way is available with openvswitch to prevent the \
> loop formation. 
> Thanks & Regards,
> Sachin Sharma
> 
> 
> 
> _______________________________________________
> discuss mailing list
> discuss at openvswitch.org
> http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org


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