Dear IWAMOTO, Exactly what i want to do. Monitoring aliveness of raspis and sending flow to raspi2 when necessary. How can I send flowmod message to raspi2? Normally I define switch feature handler and packet in handler to send flow mod. Is there another way to send flowmod message when necessary by not using packet-in message. Switch feature handler can only allow to send flow mod message to the switch when switch is connected to the controller. In my case, I want to send flowmod message to the switch whenever i want. I use to get this feature by using packet-in message in order to change routing scenario. But the problem is controller is stopped due to memory error as there are a lot of packet -in message. Is there anyway to send flowmod when i want to send without packet-in message please let me see some of the example if you have. I am so sorry for my simple question.
Best regards, Soe Ye Htet Future Internet and Wireless Research Group Chulalongkorn Thailand On Thu, Oct 18, 2018 at 1:56 PM IWAMOTO Toshihiro <[email protected]> wrote: > On Fri, 12 Oct 2018 21:44:53 +0900, > Soe Ye Htet wrote: > > I am developing some rerouting scenario when there is some node failure. > I > > have attached my testing topology testbed. RYU controller is at the > gateway > > 1 and raspi 1 and raspi 2 are directly connected to gateway 1. raspi 3 is > > connected to raspi 2 and raspi 1. The primary route for raspi3 to > gateway 1 > > is raspi 3 - raspi 1 - gateway 1. what i am trying to do is when raspi 1 > is > > down, RYU controller want to assign the flow rules to raspi 2 to relay > the > > data from raspi 3 to gateway 1. So that raspi 3 can be connected to the > > I'm not sure this objective is achievable sorely with flows, but let's > go on. > > > gateway 1 through the route of raspi 3 - raspi 2 - gateway 1. But I > cannot > > assign the flow rules to raspi 2 when raspi 1 is failed. Is there any way > > to assign the flow rules to other node when the node is failure. Any > > suggestions are warmly welcomed. > > What errors do you get? > I assume the openflow controller on gateway1 controls raspi 1 and 2. > Isn't it a matter of just monitoring aliveness of raspis and sending > flowmods to raspi 2 when necessary? > > -- > IWAMOTO Toshihiro >
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