Hi,Sandhya
On 2014年12月03日 04:02, varanasi sandhya wrote:
> Hi Takahashi,
>
> After following up with openflow-dev
> OFPFF_CHECK_OVERLAP works only with OFPFC_ADD for openflow 1.2 and later.
>
> I am using ofctl_rest.py as my controller code and I made the following
> change in ofctl_v1_3.py.
>
> def mod_flow_entry(dp, flow, cmd):
> cookie = int(flow.get('cookie', 0))
> cookie_mask = int(flow.get('cookie_mask', 0))
> table_id = int(flow.get('table_id', 0))
> idle_timeout = int(flow.get('idle_timeout', 0))
> hard_timeout = int(flow.get('hard_timeout', 0))
> priority = int(flow.get('priority', 0))
> buffer_id = int(flow.get('buffer_id', dp.ofproto.OFP_NO_BUFFER))
> out_port = int(flow.get('out_port', dp.ofproto.OFPP_ANY))
> out_group = int(flow.get('out_group', dp.ofproto.OFPG_ANY))
>
> * flags = int(flow.get('flags', dp.ofproto.OFPFF_CHECK_OVERLAP)*
> match = to_match(dp, flow.get('match', {}))
> inst = to_actions(dp, flow.get('actions', []))
>
> .....
>
> Then, I send the flow entries using curl commands
>
> curl -d '{"dpid": "000000000000001","priority": "101","match": {"in_port":
> "2"},"actions": [{"type": "OUTPUT", "port": "1"}]}'
> http://192.168.219.130:8080/stats/flowentry/add
>
> When I try adding another flow of same priority match I should get
> OFPFMFC_OVERLAP but instead the previous flow is replaced.
>
> Please guide me if I need to make any other changes in the code to set the
> OFPFF_CHECK_OVERLAP flag.
Other changes are unnecessary.
Hmm, I also tried to implement the following modifications.
>
> * flags = int(flow.get('flags', dp.ofproto.OFPFF_CHECK_OVERLAP)*
> match = to_match(dp, flow.get('match', {}))
And, I send the following curl commands.
curl -d '{"dpid": "000000000000001","priority": "101","match": {"in_port":
"2"},"actions": [{"type": "OUTPUT", "port": "1"}]}'
http://localhost:8080/stats/flowentry/add
Then,The result now follows.
(This is the same result as my email previously sent.)
OpenvSwitch: no error is returned.
CpqD: be returned the following error.
Type: OFPET_FLOW_MOD_FAILED (5)
Code: OFPFMFC_OVERLAP (3)
Have you tried to confirm the presence or absence of support for this feature
to "ovs-dev"?
---
For your information,rather than modifying the ofctl, setting of
OFPFF_CHECK_OVERLAP flag is possible.
e.g.)
curl -X POST -d '{"dpid": 1, "match":{"dl_vlan": 5},"actions":[{"port":2,
"type":"OUTPUT"}],
"table_id":3, "flags":2, "priority":1000}'
http://localhost:8080/stats/flowentry/add
Note:"flags": 2 mean OFPFF_CHECK_OVERLAP (2)
thanks
>
>
> Thanks & Regards
> Sandhya
>
>
> On Mon, Dec 1, 2014 at 11:05 PM, Minoru TAKAHASHI
> <[email protected] <mailto:[email protected]>> wrote:
>
> Hi,Sandhya
>
> Please don't drop the mailing list.
>
> On 2014年12月02日 15:56, varanasi sandhya wrote:
> > Hi Takahashi,
> >
> > Thanks for your quick reply.
> >
> > I am using openvswitch version 2.0.2 and ryu as controller on mininet.
> As per your suggestion I sent an email to openflow-dev regarding this issue.
>
> OK, I hope that your problem is resolved quickly.
>
> >
> > Regards
> > Sandhya
>
>
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