Dear IWAMOTO Toshihiro, I am so sorry for weak knowledge in this case. I will be very happy if there is any example for my desired feature.
Best Regards, Soe Ye Htet On Tue, Oct 23, 2018 at 3:37 PM IWAMOTO Toshihiro <[email protected]> wrote: > On Mon, 22 Oct 2018 14:08:47 +0900, > Soe Ye Htet wrote: > > > > [1 <text/plain; UTF-8 (7bit)>] > > 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 > > Why cannot you do that? > I think Datapaths can be stored in a global variable and can be used > from those handlers. > > > 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 > > > > > [2 <text/html; UTF-8 (quoted-printable)>] >
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