Hi All,
Please help.. any suggestions?
Thanks,
Nitish
On Jan 14, 2015 5:29 PM, "nitish nagesh" <[email protected]> wrote:
> Hello,
>
> Actually i have done some changes to my switch to support a particular
> experimenter Match field (not a meter) in Flow Mod Message. I would want a
> controller which can generate a Flow Mod with this experimenter Match
> fields encoded, so that i can test my switch code changes. Hence i am
> trying to do the above.
>
> Regards,
> Nitish
>
> On Wed, Jan 14, 2015 at 5:14 PM, Henrique Santos Fernandes <
> [email protected]> wrote:
>
>> Hello,
>>
>> first you need to know if your softswitch/switch dupport the experimenter
>> meter.
>>
>> You can look it here: http://osrg.github.io/ryu/certification.html
>>
>>
>>
>> Em Wed Jan 14 2015 at 08:50:09, nitish nagesh <[email protected]>
>> escreveu:
>>
>> Hello,
>>>
>>> Posting the code snippet which i tried (Pardon my coding
>>> style/syntax errors, i am new to Python):
>>>
>>>
>>>
>>>
>>>
>>> * exp_id = 0x00001234 hasmask = 1 length = 2
>>> oxmid = *
>>> *parser.OFPExperimenterOxmId(type_=ofproto.OFPXMC_EXPERIMENTER,
>>> exp_id=exp_id, hasmask=hasmask, length=length)*
>>>
>>> Is *OFPExperimenterOxmId *the right class to use to pack
>>> Experimenter Match OXM's?
>>>
>>> How do i append the data & mask to it?
>>>
>>> Also, I am not able to figure out how i can pack this OXM into
>>> the match of the flow-mod message.
>>>
>>> The OFPMatch() function doesn't seem to support Experimenter
>>> Match field as an argument.
>>>
>>> Please help.
>>>
>>> Regards,
>>> Nitish
>>>
>>>
>>>
>>>
>>> On Wed, Jan 14, 2015 at 10:03 AM, nitish nagesh <[email protected]
>>> > wrote:
>>>
>>>> Hi Henrique,
>>>>
>>>> Thanks for the response. Sorry, but i could not exactly relate to
>>>> your answer.
>>>>
>>>> Actually i vaguely know how to formulate a Flow Mod with the spec
>>>> provided OXM match fields. What I was looking for was a code snippet
>>>> which can pack the "match" field in the Flow Mod message with an
>>>> "experimenter match" (Example parameter values as specified in my
>>>> previous mail). I wasn't sure how or which parser interface to use to
>>>> do the same. Please refer section A.2.3.8 of the OpenFlow Switch
>>>> Specification 1.3.1 for experimenter Match fields.
>>>>
>>>> Please let me know.
>>>>
>>>> Thanks,
>>>> Nitish
>>>>
>>>> On Tue, Jan 13, 2015 at 6:34 PM, Henrique Santos Fernandes
>>>> <[email protected]> wrote:
>>>> > Nitish,
>>>> >
>>>> > i was trying to do something like i guess.
>>>> >
>>>> > But i am trying to edit the swith handler, as i want the table miss
>>>> to be
>>>> > with the meter!
>>>> >
>>>> > Following you question:
>>>> >
>>>> > First you need to reate the meter:
>>>> >
>>>> > For my it i slike this:
>>>> > rate=25
>>>> > burst_size=0
>>>> > bands=[]
>>>> > bands.append(parser.OFPMeterBandDrop(rate, burst_size))
>>>> > meter_mod = parser.OFPMeterMod(
>>>> > datapath,command=ofproto.OFPMC_ADD,flags=ofproto.OFPMF_PKTPS
>>>> ,meter_id=1,
>>>> > bands=bands)
>>>> > datapath.send_msg(meter_mod)
>>>> >
>>>> > And now you have a meter instaled! You need to edit to the meter type
>>>> and
>>>> > parameters you want! i just gave an exampe of adding a meter! (Sorry
>>>> not
>>>> > much time)
>>>> >
>>>> > And now you need to add a flow with this meter in instructions:
>>>> >
>>>> > match = parser.OFPMatch()
>>>> > pre_actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
>>>> > ofproto.OFPCML_NO_BUFFER)]
>>>> > actions =
>>>> > parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,pre_actions)
>>>> > meter_inst = parser.OFPInstructionMeter(meter_id=1)
>>>> > mod = parser.OFPFlowMod(datapath=datapath, priority=0,
>>>> match=match,
>>>> > instructions=[meter_inst,actions])
>>>> > datapath.send_msg(mod)
>>>> >
>>>> > Again, in my example i edit the table miss as you can see the match
>>>> with
>>>> > nothing to match.
>>>> >
>>>> > Hope i helped you..
>>>> >
>>>> > If you need more help let me know!
>>>> >
>>>> > I am stuck now with muitiple tables....
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > Em Tue Jan 13 2015 at 10:52:42, nitish nagesh <
>>>> [email protected]>
>>>> > escreveu:
>>>> >>
>>>> >> Hi All,
>>>> >>
>>>> >> I am trying to write a RYU script to send an experimenter Match
>>>> >> field in the Flow Mod message. I was referring to
>>>> >> "simple_switch_13.py" and trying to figure out how i can change the
>>>> >> add_flow function so that the "match" would contain the experimenter
>>>> >> Match field as well. Was not able to do much. Can someone please post
>>>> >> a sample code snippet or point to one which might be already
>>>> existing.
>>>> >>
>>>> >> Following is the Experimenter Match Field structure i am trying to
>>>> >> encode:
>>>> >>
>>>> >> oxm_class=OFPXMC_EXPERIMENTER (16-bit)
>>>> >> oxm_field = 1 (7-bit)
>>>> >> has_mask = 1 (1-bit)
>>>> >> oxm_length = 2 (8-bit)
>>>> >> experimenter_id = 0x00001234 (16-bit)
>>>> >> Match value (16-bit)
>>>> >> Match Mask (16-bit)
>>>> >>
>>>> >> Thanks,
>>>> >> Nitish
>>>> >>
>>>> >>
>>>> >>
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>>>>
>>>
>>>
>
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