Send a given buffer_id only in a single OpenFlow request.
On Thu, May 26, 2011 at 11:07:43PM +0500, ahmad numan wrote: > I think NOX error message is also related to buffer_id. My switch is > connected to a larger network and error message starts just after connecting > to openflow controller. What can be the solution for this error message. > Ahmed Bilal > > On Thu, May 26, 2011 at 10:42 PM, Ben Pfaff <[email protected]> wrote: > > > On Thu, May 26, 2011 at 10:30:46PM +0500, ahmad numan wrote: > > > I setup OVS on a machine (loaded kernel module, setup ovs-vswitchd and > > > bridges etc.)and connect to an out-of-band NOX controller using > > > ovs-openflowd. Controller got connected and switch is working correct > > > (machines are pinging each other and netperf is also working correctly in > > > openflow network). But i got error message after connecting with > > controller > > > such as "attempt to reuse the buffer" in ovs-openflowd terminal . NOX > > > controller terminal is also showing error message "received openflow > > error > > > packets for dpid XXXXXXXXX type=1 code=7". Moreover when i tried to > > manage > > > the openflow traffic using "ovs-ofctl" i got error message "fail to > > delete > > > flow" in ovs-openflowd terminal. > > > > > > What do these error messages indicate ? is there any error in > > configuration > > > or something else? > > > > "Attempt to reuse buffer" means that the controller has tried to use > > the same buffer_id in two or more OpenFlow requests. That doesn't > > work, because the first use of a buffer_id causes the buffer to be > > freed so that it can be reused for new packets coming in. > > > > I don't know why "ovs-ofctl" would report that error. Can you show > > the whole ovs-ofctl output? Add "-vvconn" to the command line to get > > more debugging output. > > _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
