I forgot to mention that I use Floodlight controller. Can I achieve what you suggested with the controller that does not support OF1.5?
BR, Slavica 2018-03-24 23:30 GMT+01:00 Slavica Tomovic <slavicat...@gmail.com>: > Thank Ben. > > Can you help me with the syntax? I tried this: > > ovs-ofctl mod-group s11 group_id=24, type=select, selection_method=hash > > However, I am getting an error the mod-group command takes at most two > arguments. > I am using OVS 2.5.2. > > Also, how should I specify the fields? In the documentation, I found > this: > > fields(field[=mask]...) > > Does this mean that I should specify the fields like this: fields(nw_src > nw_dst udp..)? > > > Thanks in advance, > Slavica > > 2018-03-24 19:10 GMT+01:00 Ben Pfaff <b...@ovn.org>: > >> On Sat, Mar 24, 2018 at 06:45:50PM +0100, Slavica Tomovic wrote: >> > Hi, >> > >> > I am using SELECT Group tables for load balancing purposes in OpenFlow >> > network. However, I found that OVS by default performs hashing only on >> IP >> > addresses, MAC addresses, VLAN IDs, TCP ports and EthType fields. Is it >> > possible to change this and use a hash function that depends on UDP >> port? >> > >> > I have read these posts: >> > https://mail.openvswitch.org/pipermail/ovs-discuss/2016-July >> /041934.html >> > https://mail.openvswitch.org/pipermail/ovs-dev/2015-March/214529.html >> > >> > and according to them I need to do this by implementing a logic for >> > creation of group properties structure on SDN controller. Can I avoid >> this >> > somehow and configure OVS switches with some command to perform hashing >> on >> > UDP ports? >> >> It sounds like you just need to use ovs-ofctl to configure the behavior >> you want. Did you read the "Group Syntax" section in the manpage? You >> want to specify the "fields" parameter. >> > >
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