Hi Iwase,
Thanks for reply.
-Yi
2017-04-02 19:27 GMT-07:00 Iwase Yusuke <iwase.yusu...@gmail.com>:
> Hi Yi,
>
>
> On 2017年04月01日 05:26, Yi Tseng wrote:
> > 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?)
>
> Oh, me!?
>
>
> Just my opinion...
>
> "--observe-hosts" option is the good idea for me, but installing flows for
> ARP packets
> might have some "side effects" to Apps which do not expect for such
> (forced sent?)
> Packet-In messages, I guess.
> e.g.)
> - simple_switch does not take care of multiple Packet-In from the same
> host.
> - flows for ARP packets might increase the cost for handling messages.
>
> OTOH, it is difficult to define the standard way to discover host like
> LLDP for
> discovering switches.
> If we can notify users that the above aspects of "--observe-hosts" option
> users, it
> should be a good option for us!
>
> Thanks,
> Iwase
>
>
> >
> >
> > -Yi
> >
> > 2017-03-31 5:57 GMT-07:00 Edison Albuquerque <edison...@gmail.com
> <mailto:edison...@gmail.com>>:
> >
> > 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 <a86487...@gmail.com <mailto:
> a86487...@gmail.com>>:
> >
> > 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 <
> edison...@gmail.com <mailto:edison...@gmail.com>>:
> >
> > 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 <a86487...@gmail.com
> <mailto:a86487...@gmail.com>>:
> >
> > 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 <
> edison...@gmail.com <mailto:edison...@gmail.com>>:
> >
> > 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 <
> a86487...@gmail.com <mailto:a86487...@gmail.com>>:
> >
> > Hi,
> >
> > Host should be discovered when a host sent a
> packet (ip, arp...)
> >
> > Yi
> >
> > 2017-03-16 7:49 GMT-07:00 Edison Albuquerque <
> edison...@gmail.com <mailto:edison...@gmail.com>>:
> >
> > 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
> <tel:+55%2081%203184-7542> - Fax: +55 81 3184-7581
> <tel:+55%2081%203184-7581>
> >
> >
> > ------------------------------
> ------------------------------------------------
> > Check out the vibrant tech community on one
> of the world's most
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> http://sdm.link/slashdot
> > ______________________________
> _________________
> > Ryu-devel mailing list
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> lists/listinfo/ryu-devel <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 <tel:+55%2081%203184-7542> -
> Fax: +55 81 3184-7581 <tel:+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 <tel:+55%2081%203184-7542> - Fax: +55
> 81 3184-7581 <tel:+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 <tel:+55%2081%203184-7542> - Fax: +55 81
> 3184-7581 <tel:+55%2081%203184-7581>
> >
> >
> >
> >
> > --
> > Yi Tseng (a.k.a Takeshi)
> > Taiwan National Chiao Tung University
> > Department of Computer Science
> > W2CNLab
> >
> > https://takeshi.tw
>
--
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab
https://takeshi.tw
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