Hi,
Please don't drop mailing list.
It looks like the host discovery handler didn't handle the packet in message
The reason I guess is that the packet in message was dropped by host
discovery handler.
The handler only drop LLDP and CFM message.
I guess there is no correct packet in message sent to the controller
because all host packet follows the flow you installed already.
Hello Iwase,
Should we install new packet_in flow entry for ARP packet by default? (or
add --observe-hosts option?)
-Yi
2017-03-31 5:57 GMT-07:00 Edison Albuquerque <[email protected]>:
> Hi Yi.
> Sorry I took so long to answer.
> I've been flooded with other tasks.
> I send, attached, a file with the mininet command I used, the ryu-manager
> command I used, the flows in switch S1 and the debug information you asked
> me. I hope this will help.
> If you need more info, please, just say it and I'll run for it.
> Bests, Edison.
>
> 2017-03-17 17:31 GMT-03:00 Yi Tseng <[email protected]>:
>
>> I think currently there is no "--observe-hosts" option for Ryu now.
>>
>> If your OpenFlow version is 1.3, you should install packet lost flow in
>> switch first.
>>
>> Ryu use packet-in message to discover hosts
>>
>>
>> Yi
>>
>> 2017-03-17 12:35 GMT-07:00 Edison Albuquerque <[email protected]>:
>>
>>> OK.
>>> I'll do it this weekend.
>>> Openflow used is 1.3.
>>> My code changes yours "Topology-Discovery", for I add get_host.
>>> Maybe there is a --observe-hosts similar to --observe-link.
>>> Tks,
>>>
>>> 2017-03-17 14:42 GMT-03:00 Yi Tseng <[email protected]>:
>>>
>>>> Hi
>>>>
>>>> Please don't drop mailing list.
>>>>
>>>> 1. Can you paste your debug information here? (with "--verbose"), to
>>>> make sure anything works fine.
>>>>
>>>> 2. What version OpenFlow you are use?
>>>>
>>>> 3. Can you show flows in the switch?
>>>>
>>>> Thanks
>>>>
>>>>
>>>> Yi
>>>>
>>>> 2017-03-17 4:21 GMT-07:00 Edison Albuquerque <[email protected]>:
>>>>
>>>>> Thanks.
>>>>> In Mininet I typed "pingall" and then ran Ryu Controller again but the
>>>>> host list was still empty.
>>>>> I upgrade my Ryu to last version. Maybe I must upgrade Mininet too.
>>>>> Another way I visualized is to print mac-to-port dictionairy, after
>>>>> "pingall".
>>>>>
>>>>>
>>>>> 2017-03-16 20:12 GMT-03:00 Yi Tseng <[email protected]>:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Host should be discovered when a host sent a packet (ip, arp...)
>>>>>>
>>>>>> Yi
>>>>>>
>>>>>> 2017-03-16 7:49 GMT-07:00 Edison Albuquerque <[email protected]>:
>>>>>>
>>>>>>> Using the code that is inside Ryu Manual, I was able to see the
>>>>>>> switches of the network I created with Mininet, as well as see the links
>>>>>>> between them.
>>>>>>> I changed the code a little bit to include get_host() but could not
>>>>>>> see the hosts. All I see is an empty list.
>>>>>>> Is it possible to discovery the topology down to the hosts?
>>>>>>> Thanks.
>>>>>>> Edison.
>>>>>>>
>>>>>>>
>>>>>>> *Todos querem um mundo melhor. Poucos colaboram.*
>>>>>>>
>>>>>>> Prof. Edison de Queiroz Albuquerque, BSc, Msc, Dr.
>>>>>>> Adjunto da Escola Politécnica de Pernambuco, Universidade de
>>>>>>> Pernambuco (POLI/UPE)
>>>>>>> Professor do Curso de Engenharia de Computação
>>>>>>> Líder do Grupo de Pesquisa em Protocolos de Redes de Computadores
>>>>>>> Membro do IEEE (ComSoc), do SBrT, do IECOM e da APEET
>>>>>>>
>>>>>>> Universidade de Pernambuco/Escola Politécnica de Pernambuco
>>>>>>> Rua Benfica, 455 (Bl. 'C' 2. andar) - Bairro: Madalena
>>>>>>> CEP 50720-001 - Recife, Pernambuco - Brasil
>>>>>>> Fone: +55 81 3184-7542 <+55%2081%203184-7542> - Fax: +55 81
>>>>>>> 3184-7581 <+55%2081%203184-7581>
>>>>>>>
>>>>>>>
>>>>>>> ------------------------------------------------------------
>>>>>>> ------------------
>>>>>>> Check out the vibrant tech community on one of the world's most
>>>>>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>>>>>> _______________________________________________
>>>>>>> Ryu-devel mailing list
>>>>>>> [email protected]
>>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Yi Tseng (a.k.a Takeshi)
>>>>>> Taiwan National Chiao Tung University
>>>>>> Department of Computer Science
>>>>>> W2CNLab
>>>>>>
>>>>>> https://takeshi.tw
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> *Todos querem um mundo melhor. Poucos colaboram.*
>>>>>
>>>>> Prof. Edison de Queiroz Albuquerque, BSc, Msc, Dr.
>>>>> Adjunto da Escola Politécnica de Pernambuco, Universidade de
>>>>> Pernambuco (POLI/UPE)
>>>>> Professor do Curso de Engenharia de Computação
>>>>> Líder do Grupo de Pesquisa em Protocolos de Redes de Computadores
>>>>> Membro do IEEE (ComSoc), do SBrT, do IECOM e da APEET
>>>>>
>>>>> Universidade de Pernambuco/Escola Politécnica de Pernambuco
>>>>> Rua Benfica, 455 (Bl. 'C' 2. andar) - Bairro: Madalena
>>>>> CEP 50720-001 - Recife, Pernambuco - Brasil
>>>>> Fone: +55 81 3184-7542 <+55%2081%203184-7542> - Fax: +55 81 3184-7581
>>>>> <+55%2081%203184-7581>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Yi Tseng (a.k.a Takeshi)
>>>> Taiwan National Chiao Tung University
>>>> Department of Computer Science
>>>> W2CNLab
>>>>
>>>> https://takeshi.tw
>>>>
>>>
>>>
>>>
>>> --
>>>
>>> *Todos querem um mundo melhor. Poucos colaboram.*
>>>
>>> Prof. Edison de Queiroz Albuquerque, BSc, Msc, Dr.
>>> Adjunto da Escola Politécnica de Pernambuco, Universidade de Pernambuco
>>> (POLI/UPE)
>>> Professor do Curso de Engenharia de Computação
>>> Líder do Grupo de Pesquisa em Protocolos de Redes de Computadores
>>> Membro do IEEE (ComSoc), do SBrT, do IECOM e da APEET
>>>
>>> Universidade de Pernambuco/Escola Politécnica de Pernambuco
>>> Rua Benfica, 455 (Bl. 'C' 2. andar) - Bairro: Madalena
>>> CEP 50720-001 - Recife, Pernambuco - Brasil
>>> Fone: +55 81 3184-7542 <+55%2081%203184-7542> - Fax: +55 81 3184-7581
>>> <+55%2081%203184-7581>
>>>
>>>
>>
>>
>> --
>> Yi Tseng (a.k.a Takeshi)
>> Taiwan National Chiao Tung University
>> Department of Computer Science
>> W2CNLab
>>
>> https://takeshi.tw
>>
>
>
>
> --
>
> *Todos querem um mundo melhor. Poucos colaboram.*
>
> Prof. Edison de Queiroz Albuquerque, BSc, Msc, Dr.
> Adjunto da Escola Politécnica de Pernambuco, Universidade de Pernambuco
> (POLI/UPE)
> Professor do Curso de Engenharia de Computação
> Líder do Grupo de Pesquisa em Protocolos de Redes de Computadores
> Membro do IEEE (ComSoc), do SBrT, do IECOM e da APEET
>
> Universidade de Pernambuco/Escola Politécnica de Pernambuco
> Rua Benfica, 455 (Bl. 'C' 2. andar) - Bairro: Madalena
> CEP 50720-001 - Recife, Pernambuco - Brasil
> Fone: +55 81 3184-7542 <+55%2081%203184-7542> - Fax: +55 81 3184-7581
> <+55%2081%203184-7581>
>
>
--
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab
https://takeshi.tw
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