func sendLLDP(deviceID string, f openflow.Factory, w trans.Writer, p openflow.Port) error { lldp, err := newLLDPEtherFrame(deviceID, p) if err != nil { return err } outPort := openflow.NewOutPort() outPort.SetValue(p.Number()) // Packet out to the port action, err := f.NewAction() if err != nil { return err } action.SetOutPort(outPort) out, err := f.NewPacketOut() if err != nil { return err } // From controller out.SetInPort(openflow.NewInPort()) out.SetAction(action) out.SetData(lldp) return w.Write(out) }
func setARPSender(f openflow.Factory, w trans.Writer) error { match, err := f.NewMatch() if err != nil { return err } match.SetEtherType(0x0806) // ARP outPort := openflow.NewOutPort() outPort.SetController() action, err := f.NewAction() if err != nil { return err } action.SetOutPort(outPort) inst, err := f.NewInstruction() if err != nil { return err } inst.ApplyAction(action) flow, err := f.NewFlowMod(openflow.FlowAdd) if err != nil { return err } // Permanent flow flow.SetIdleTimeout(0) flow.SetHardTimeout(0) flow.SetPriority(100) flow.SetFlowMatch(match) flow.SetFlowInstruction(inst) if err := w.Write(flow); err != nil { return err } return sendBarrierRequest(f, w) }
func (r *of13Session) setDefaultTableMiss(f openflow.Factory, w trans.Writer) error { inst, err := f.NewInstruction() if err != nil { return err } // 0 -> Controller outPort := openflow.NewOutPort() outPort.SetController() action, err := f.NewAction() if err != nil { return err } action.SetOutPort(outPort) inst.ApplyAction(action) if err := r.setTableMiss(f, w, 0, inst); err != nil { return fmt.Errorf("failed to set table_miss flow entry: %v", err) } r.device.setFlowTableID(0) return nil }
func (r *of13Session) setHP2920TableMiss(f openflow.Factory, w trans.Writer) error { // Table-100 is a hardware table, and Table-200 is a software table // that has very low performance. inst, err := f.NewInstruction() if err != nil { return err } // 0 -> 100 inst.GotoTable(100) if err := r.setTableMiss(f, w, 0, inst); err != nil { return fmt.Errorf("failed to set table_miss flow entry: %v", err) } // 100 -> 200 inst.GotoTable(200) if err := r.setTableMiss(f, w, 100, inst); err != nil { return fmt.Errorf("failed to set table_miss flow entry: %v", err) } // 200 -> Controller outPort := openflow.NewOutPort() outPort.SetController() action, err := f.NewAction() if err != nil { return err } action.SetOutPort(outPort) inst.ApplyAction(action) if err := r.setTableMiss(f, w, 200, inst); err != nil { return fmt.Errorf("failed to set table_miss flow entry: %v", err) } r.device.setFlowTableID(200) return nil }