Hi,
I believe the high level topology which Iwase mentioned looks like:
You need to config Ryu BGP speaker so Ryu BGP speaker can send BGP
advertise to external BGP speaker, vice versa.
For OF-Switch, you need to install flows to it so it can forward both ARP
and BGP messages between Ryu BGP speaker and external BGP speaker
To connect from Ryu to OF-Switch is simple, all you need is to connect
NIC/interface from your Ryu machine to the OF-Switch with a ethernet cable
;)
2018-05-31 20:31 GMT+08:00 Yusuke Iwase <[email protected]>:
> Hi,
>
>
> 1) BGP Speaker, Do we need to specify a configuration to connect to
> openflow switch?, instead of listening on a bgp port?
>
>
> I guess no special configuration is required. BGP Speaker should act as a
> “host” connecting to your OpenFlow network.
>
> 2) In Openflow switch, how do we configure send the packets to BGP Speaker
> on separate channel. ?
>
>
> Not so complex, just execute OUTPUT action to forward BGP packets (also
> ARP) to the port connecting to Ryu BGP Speaker’s host.
> For example, if tcp_dst=179 then output to port 1 or so.
>
> Thanks,
> Iwase
>
> 2018/05/31 18:25、knet solutions <[email protected]>のメール:
>
> Hi Iwase, Logically i understood . But technically i dont know how to do
> it.
>
> 1) BGP Speaker, Do we need to specify a configuration to connect to
> openflow switch?, instead of listening on a bgp port?
>
> 2) In Openflow switch, how do we configure send the packets to BGP Speaker
> on separate channel. ?
>
>
> Sorry about more questions.
>
> Thanks
> Suresh.
>
> On Thu, May 31, 2018 at 2:37 PM, Yusuke Iwase <[email protected]>
> wrote:
>
>> Hi,
>>
>> Just I mean Ryu BGP Speaker should connect to the OpenFlow port on
>> OF-Switch as the same as the traditional routers.
>> I want to describe we should not use the Controller-Switch channel to
>> receive BGP packets (e.g. receive BGP packets via Packet-In) and should
>> separate the link for BGP from that for OpenFlow.
>>
>> Thanks,
>> Iwase
>>
>> 2018/05/31 17:34、knet solutions <[email protected]>のメール:
>>
>> Hi Iwase ,
>> thanks for the response.
>>
>> Regarding the below line,
>>
>> >The BGP port on Ryu is connected as a "to host" port onthe OF-Switch,
>>
>> I couldnot understand this point. How to configure this, and little more
>> details about this.
>>
>> Can you share something more about this.
>>
>> Thanks
>> Suresh.
>>
>>
>> On Thu, May 31, 2018 at 12:02 PM, Iwase Yusuke <[email protected]>
>> wrote:
>>
>>> Hi Suresh,
>>>
>>>
>>> > Query1)
>>> > Can we use the RYU BGP Speaker libaray, in this use case?
>>>
>>> Yes.
>>> I guess that use case is what exactly Ryu BGP speaker implementation is
>>> targeting.
>>>
>>> > if yes, could you provide some guide lines on how to use it.
>>>
>>> Sorry, I have no good document for such, but for example, the following
>>> architecture is one of the candidates.
>>>
>>> Ryu
>>> OpenFlow || BGP
>>> OF-Switch -------- Router
>>>
>>> Ryu has two (or more) connections with the OF-Switch, one is for
>>> OpenFlow and
>>> the other is for BGP. The BGP port on Ryu is connected as a "to host"
>>> port on
>>> the OF-Switch, then the OF-Switch will forward BGP packets (TCP port =
>>> 179) to
>>> Ryu's BGP port and the other packets will be forwarded based on the
>>> OpenFlow
>>> table.
>>>
>>> Thanks,
>>> Iwase
>>>
>>>
>>> On 2018年05月23日 21:33, knet solutions wrote:
>>>
>>>>
>>>> The BGP Speaker example shows that, the RYU BGP Speaker is a separate
>>>> process which handles packets directly from the socket/kernel (not via
>>>> Openflow encapsualtion).
>>>>
>>>>
>>>> My use case some thing like below,
>>>>
>>>> In this below diagram, Tradiational BGP Router (Bird routing daemon)
>>>> run BGP and connect to the openvswtich managed by the RYU controller. I
>>>> would like to enable the BGP application in the controller, so that when
>>>> the BGP Packet comes to the switch, switch sends the packet to the RYU ,
>>>> RYU will use BGP Speaker to manage the control plane for this siwtch1.
>>>>
>>>> -------------------------------------------
>>>> |---------------------
>>>> Traditional BGP Router |
>>>> ----------------------------------|switch1
>>>> |
>>>> (Bird Router) | | |
>>>> ------------------------------------------
>>>> ----------------------
>>>>
>>>> Query1)
>>>> Can we use the RYU BGP Speaker libaray, in this use case? if yes,
>>>> could you provide some guide lines on how to use it.
>>>>
>>>>
>>>> --
>>>> */Regards,
>>>> /*
>>>> */Knet solutions./*
>>>> Suresh.
>>>> https://github.com/knetsolutions/KNet <https://github.com/knetsoluti
>>>> ons/KNet>
>>>> http://knet-topology-builder.readthedocs.io/ <
>>>> http://knet-topology-builder.readthedocs.io/>
>>>> http://knetsolutions.in/
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------
>>>> ------------------
>>>> 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
>>>>
>>>>
>>
>>
>> --
>>
>> *Regards, *
>> *Knet solutions.*
>>
>> https://github.com/knetsolutions/KNet
>> http://knet-topology-builder.readthedocs.io/
>> http://knetsolutions.in/
>>
>>
>
>
> --
>
> *Regards, *
> *Knet solutions.*
>
> https://github.com/knetsolutions/KNet
> http://knet-topology-builder.readthedocs.io/
> http://knetsolutions.in/
>
>
> ------------------------------------------------------------
> ------------------
> 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
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> 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
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