OpenFlow 1.5 spec says: “The group type need not be specified for the delete request.”
Jarno > On Mar 17, 2016, at 7:40 PM, Simon Horman <simon.hor...@netronome.com> wrote: > > On Wed, Mar 16, 2016 at 05:48:23PM +0000, Shuva Jyoti Kar wrote: >> Hello, >> >> I am trying deletion of an indirect group on ovs2.5 . Now when I try to >> delete the group using the group-id and group-type without the buckets the >> group-deletion fails with an error OFPGMFC_INVALID_GROUP >> >> The Openflow 1.3.5 spec says that "If a delete request includes some >> buckets in the Group-Mod message, then the switch must return an >> ofp_error_msg with OFPET_GROUP_MOD_FAILED type and OFPGMFC_INVALID_GROUP >> code." >> >> I also find that if I delete the group without the group-type it goes >> through(have seen the same through cli). Since the Openflow1.3.5 >> specification states : >> "For delete requests (OFPGC_DELETE), if no group entry with the specified >> group identifier currently exists in the group table, no error is recorded, >> and no group table modification occurs. Otherwise, the group is removed, and >> all flow entries containing this group in a Group action are also removed. >> The group type need not be specified for the delete request. Delete also >> differs from an add or modify with no buckets specified in that future >> attempts to add the group identifier will not result in a group exists >> error. If one wishes to effectively delete a group yet leave in flow entries >> using it, that group can be cleared by sending a modify with no buckets >> specified." >> >> Sending the group-type should not result in the group-deletion failing as >> that is not mandatory by the spec. >> >> Is this a bug in ovs2.5 ? > > Hi Shuva, > > I see a problem in implementing the above in that the type field > is always present in group modification entries (struct ofp_group_mod) > and thus it doesn't seem to be an obvious way to omit it. > > One possibility I see would be to ignore the type when processing group > deletion requests - perhaps this was the intention of the specification, I > am unsure. > _______________________________________________ > dev mailing list > d...@openvswitch.org <mailto:d...@openvswitch.org> > http://openvswitch.org/mailman/listinfo/dev > <http://openvswitch.org/mailman/listinfo/dev>
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