[stratum-dev] Table entry from stratum_bmv2 different from ONOS store

A Sydney asydney007 at gmail.com
Wed May 19 18:57:54 UTC 2021


I pulled in the new changes and everything works great!

Thanks a bunch!
-Syd

On Tue, May 18, 2021 at 5:23 PM Maximilian Pudelko <max at opennetworking.org>
wrote:

> The linked ONOS CL has been merged today. ONOS now supports canonical byte
> strings.
> You might have to update your ONOS apps, depending on how you interact
> with P4Runtime.
> For now there is nothing to be fixed in Stratum.
>
> Max
>
> On Tue, May 18, 2021 at 1:11 PM A Sydney <asydney007 at gmail.com> wrote:
>
>> Please let me know when a fix is pushed (or if you can provide a
>> tkt/issue #, I can track it from the stratum repo). I'll then rebuild the
>> debian package, create a new image and test out the change.
>>
>> Thanks!
>> -Syd
>>
>> On Tue, May 18, 2021 at 2:20 PM Maximilian Pudelko <
>> max at opennetworking.org> wrote:
>>
>>> Hi Syd,
>>>
>>> I think this could be related to the recent PI update we did for
>>> Stratum-bmv2: https://github.com/stratum/stratum/pull/660
>>> It now returns canonical byte strings in all P4Runtime messages, which
>>> confuses ONOS. We're working on fixing it:
>>> https://gerrit.onosproject.org/c/onos/+/24616
>>>
>>> Max
>>>
>>>
>>> On Tue, May 18, 2021 at 7:59 AM A Sydney via stratum-dev <
>>> stratum-dev at lists.stratumproject.org> wrote:
>>>
>>>> Hi Stratum folks,
>>>>                           I've used the debugger in Intellij to narrow
>>>> down the issue (@P4RuntimeFlowRuleProgrammable.java line 233). As shown in
>>>> the attached debugger gui, It appears that
>>>> "tableAction->runtimeParams->value->value->value->hb" has different values
>>>> for "translatedEntitity.get().translated()" and "entry". Hence, these flow
>>>> rules are in a "PENDING ADD" state. Can you kindly provide feedback on this
>>>> issue? Is this stratum specific, ONOS, or perhaps java?
>>>>
>>>> Thanks,
>>>> -Syd
>>>> [image: onos_debug_gui.png]
>>>>
>>>>
>>>>
>>>> On Wed, May 12, 2021 at 11:06 PM A Sydney <asydney007 at gmail.com> wrote:
>>>>
>>>>> Hi Stratum folks,
>>>>>
>>>>> # Context: I'm running standalone stratum_bmv2 instances on Debian 10
>>>>> connected to ONOS where I've got a custom pipeconfig and app.
>>>>>
>>>>> # Problem:
>>>>> When I install flows, ONOS logs an error that table entries in
>>>>> "l2_exact_table" on the switch are different from what's recorded in the
>>>>> ONOS store. However, if you take a look at the rules, they are identical as
>>>>> shown here: https://pastebin.com/i4Jkt26i
>>>>>
>>>>> I activated the debugger and set a breakpoint near "if
>>>>> (!translatedEntity.get().translated().equals(entry))" (i.e. in
>>>>> P4RuntimeFlowRuleProgrammable.java) and both "translated" and "entry" have
>>>>> the same values.
>>>>>
>>>>> Have you come across this one? If not, perhaps I should take this up
>>>>> with ONOS folks?
>>>>>
>>>>> PS. I don't see this issue for other tables.
>>>>>
>>>>> Thanks,
>>>>> -Syd
>>>>>
>>>> _______________________________________________
>>>> stratum-dev mailing list
>>>> stratum-dev at lists.stratumproject.org
>>>> https://lists.stratumproject.org/listinfo/stratum-dev
>>>
>>>
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