func (o *OgoInstance) EchoReply(dpid net.HardwareAddr) {
// Wait three seconds then send an echo_request message.
go func() {
<-time.After(time.Second * 3)
if sw, ok := Switch(dpid); ok {
res := ofp10.NewEchoRequest()
sw.Send(res)
}
}()
}
func (o *OgoInstance) ConnectionUp(dpid net.HardwareAddr) {
dropMod := ofp10.NewFlowMod()
dropMod.Priority = 1
arpFmod := ofp10.NewFlowMod()
arpFmod.Priority = 2
arpFmod.Match.DLType = 0x0806 // ARP Messages
arpFmod.AddAction(ofp10.NewActionOutput(ofp10.P_CONTROLLER))
dscFmod := ofp10.NewFlowMod()
dscFmod.Priority = 0xffff
dscFmod.Match.DLType = 0xa0f1 // Link Discovery Messages
dscFmod.AddAction(ofp10.NewActionOutput(ofp10.P_CONTROLLER))
if sw, ok := Switch(dpid); ok {
sw.Send(ofp10.NewFeaturesRequest())
sw.Send(dropMod)
sw.Send(arpFmod)
sw.Send(dscFmod)
sw.Send(ofp10.NewEchoRequest())
}
go o.linkDiscoveryLoop(dpid)
}