Try this (note that configuring the selection method only works with the experimental OpenFlow 1.5 protocol):
utilities/ovs-ofctl -O OpenFlow15 add-group br0 group_id=1,type=select,selection_method=hash,bucket=output:2,bucket=output:3 On Fri, Jun 12, 2015 at 08:20:48PM +0500, Haleema Sadia wrote: > Ovs-ofctl add-group group_id=1, > type=select,selection_method=hash,bucket=output:2,bucket=output:3 -O > OpenFlow13 > > On Friday, June 12, 2015, Ben Pfaff <[email protected]> wrote: > > > Can you provide the entire ovs-ofctl command? > > > > On Fri, Jun 12, 2015 at 08:15:52PM +0500, Haleema Sadia wrote: > > > Yes, tested it with more flows a while ago and it was working fine! I > > tried > > > giving selection_method=hash with the group type select. Ovs-ofctl > > telling > > > me unknown keyword. Why is that? > > > > > > On Friday, June 12, 2015, Ben Pfaff <[email protected] <javascript:;>> > > wrote: > > > > > > > It's a hash, so it's probabilistic. You'll only get a statistically > > > > even distribution if you have a large number of flows. For two flows, > > > > there is a 50% chance they end up in the same bucket. > > > > > > > > On Fri, Jun 12, 2015 at 03:30:37PM +0500, Haleema Sadia wrote: > > > > > My topology is two hosts connected to a switch and I am sending two > > flows > > > > > from host 1 to host 2. What I want to do is use the select group type > > > > with > > > > > two different buckets. But both of my flows are being mapped to one > > > > bucket, > > > > > essentially. Shouldn't the select function, which is taking a hash of > > > > > src/dst ports and ips, map each blow to different bucket? > > > > > > > > > > > > > > > > > > > > On Fri, Jun 12, 2015 at 3:20 AM, Ben Pfaff <[email protected] > > <javascript:;> > > > > <javascript:;>> wrote: > > > > > > > > > > > The default is a hash (not just an xor) over fields up to L4, but > > you > > > > > > can configure another method using the extensions implemented by > > > > > > Netronome. > > > > > > > > > > > > On Thu, Jun 11, 2015 at 11:07:56PM +0500, Haleema Sadia wrote: > > > > > > > What is the current ovs version using for select type? As far as > > I > > > > could > > > > > > > understand it is taking a xor of src and destination addresses > > and > > > > tcp > > > > > > > ports? Is it correct? > > > > > > > > > > > > > > On Thursday, June 11, 2015, Ben Pfaff <[email protected] > > <javascript:;> <javascript:;>> > > > > wrote: > > > > > > > > > > > > > > > On Thu, Jun 11, 2015 at 01:13:22PM +0500, Haleema Sadia wrote: > > > > > > > > > I was wondering if you could help me figuring out where the > > > > > > algorithm for > > > > > > > > > the group type "select" is implemented in ovs switch files? I > > > > want to > > > > > > > > > implement a function which takes the hash of the src/dst ip, > > and > > > > > > src/dst > > > > > > > > > port and selects the corresponding bucket for the packet. > > > > > > > > > > > > > > > > xlate_select_group() in ofproto-dpif-xlate.c > > > > > > > > > > > > > > > > > > > > _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
