[P4-dev] Confusion regarding some P4 language terminologies

Yi Tseng a86487817 at gmail.com
Thu Jun 6 19:12:50 EDT 2019


You can find all bmv2 targets here:
https://github.com/p4lang/behavioral-model/blob/master/targets/README.md


Harsh Gondaliya <harshgondaliya_vinodbhai at srmuniv.edu.in> 於 2019年6月6日 週四
上午11:23寫道:

> Thank You. This description was very helpful. It cleared my doubts.
>
> On Thu, Jun 6, 2019 at 11:37 PM Mihai Budiu <mbudiu at vmware.com> wrote:
>
>> BMv2 is a C++ framework which allows you to build simulators for switches
>> that are programmed in P4.
>>
>> simple_switch one switch implementation build using bmv2; it is the most
>> frequently used implementation.
>>
>> BMv2 is designed for testing P4 functionality, not for production
>> deployment. It will not support millions of packets per second.
>>
>>
>>
>> Mihai
>>
>>
>>
>> *From:* P4-dev <p4-dev-bounces at lists.p4.org> *On Behalf Of *Harsh
>> Gondaliya
>> *Sent:* Thursday, June 6, 2019 10:47 AM
>> *To:* p4-dev at lists.p4.org
>> *Subject:* [P4-dev] Confusion regarding some P4 language terminologies
>>
>>
>>
>> I need some elaboration on what is the exact meaning of these terms:
>>
>>
>>
>> (1) Behavioral Model (bmv2)
>>
>>    - Can it be called a P4 software switch just like OVS? Or is it some
>>    sort of framework?
>>    - Am I correct to state that in the P4 tutorial programs available on
>>    https://github.com/p4lang/tutorials
>>    <https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fp4lang%2Ftutorials&data=02%7C01%7Cmbudiu%40vmware.com%7C47f0e2a48e44408f8dd008d6eaa7124f%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C636954400622952870&sdata=p1efKyTPHRJAEo9WRhA%2F2fslycFDqh%2BcCjYZMasQhtM%3D&reserved=0>,
>>    I am using bmv2 as my software switch?
>>
>> (2) simple_switch
>>
>>    - It is called a target switch. Then what is the difference between
>>    bmv2 and simple_switch
>>
>> Thanking You,
>>
>> Harsh
>>
>>
>>
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