Experimental Demonstration of OpenFlow Control of Packet & Circuit Switches

1. http://openflowswitch.org Experimental Demonstration of OpenFlow Control of Packet & Circuit Switches Vinesh Gudla, Saurav Das, AnujitShastri, Guru Parulkar, Nick McKeown, Leonid Kazovsky Stanford University Shinji Yamashita Fujitsu Laboratories, Japan http://www.openflowswitch.org/wk/index.php/PAC.C

2. OpenFlow Switching Controller OpenFlow Switch OpenFlow Protocol SSL Secure Channel sw • Add/delete flow entry • Encapsulated packets • Controller discovery Flow Table hw A Flow is any combination of above fields described in the Rule

3. Flow Example Statistics Statistics Statistics Action Action Action Rule Rule Rule OpenFlow Protocol Routing Controller A Flow is the fundamental unit of manipulation within a switch

4. OpenFlowTestbed OpenFlow Controller OpenFlow Protocol NetFPGA based OpenFlow packet switch NF2 NF1 to OSA E-O O-E GE 25 km SMF GE AWG 1X9 Wavelength Selective Switch (WSS) to OSA WSS based OpenFlow circuit switch λ1 1553.3 nm GE to DWDM SFP convertor λ2 1554.1 nm 192.168.3.10 192.168.3.12 192.168.3.15 Video Clients Video Server

5. An Open Platform for Gigabit-Rate Network Switching and Routing. A complete network hardware platform implemented with FPGA logic www.netfpga.org

6. WSS Output DEMUX MUX SW l l Input l l l 1 6 1 l l l l l l l l 2 3 5 2 1 7 6 4 l l l 3 5 l l l 2 4 l Control l 7 l l 3 7 Lens Grating MEMS Mirror Array IN Switching output port by tilting MEMS mirror OUT1 Fiber Collimator Array IN OUT2 OUT IN

7. Lab Setup OpenFlow packet switch OpenFlow packet switch 25 km SMF GE-Optical GE-Optical Mux/Demux Openflow Circuit Switch

8. OpenFlowTestbed OpenFlow Controller OpenFlow Protocol NetFPGA based OpenFlow packet switch NF2 NF1 to OSA E-O O-E GE 25 km SMF GE AWG 1X9 Wavelength Selective Switch (WSS) to OSA WSS based OpenFlow circuit switch λ1 1553.3 nm GE to DWDM SFP convertor λ2 1554.1 nm 192.168.3.10 192.168.3.12 192.168.3.15 Video Clients Video Server

9. Measurements

10. /* Description of a physical port */ struct ofp_phy_port { uint16_t port_no; uint8_t hw_addr[OFP_ETH_ALEN]; /* 00:00:00:00:00:00 if not an Ethernet port */ uint8_t name[OFP_MAX_PORT_NAME_LEN]; /* Null-terminated*/ uint32_t config; /* Bitmap of OFPPC_* flags */ uint32_t state; /* Bitmap of OFPPS_* flags */ /* Bitmaps of OFPPF_* that describe features. All bits zeroed if * unsupported or unavailable. */ uint32_t curr; /* Current features. */ uint32_t advertised; /* Features being advertised by the port. */ uint32_t supported; /* Features supported by the port. */ uint32_t peer; /* Features advertised by peer. */ uint16_t supp_swtype; /* Bitmap of switching type OFPST_* flags */ unit16_t peer_swtype; /* Bitmap of peer’s switching type */ uint32_t supp_sw_tdm_gran; /* TDM switching granularity OFPTSG_* flags uint32_t peer_sw_tdm_gran; /* Bitmap of peer’s switching granularity */ unit64_t bandwidth1; /* Bitmap of the OFPCBL_* or OFPCBT_* flags */ uint64_t bandwidth2; /* Same type as supp_bandwidth1 */ }; OFP_ASSERT(sizeof ( struct ofp_phy_cport) == 80);

11. Wavelength Switch Port ITU grid Frequencies supported ITU grid Frequencies currently being used SONET/SDH Switch Port (OC-768 line rate)

12. /*Description of a cross-connection*/ struct ofp_connect{ uint16_t wildcards; /* identifies which two ports to use below */ uint16_t num_components; /* identifies number of cross-connect to be made uint8_t pad[4]; /*– ie. num array elems*/ uint16_t in_port[0]; /* OFPP_* ports – real or virtual */ uint16_t out_port[0]; /* OFPP_* ports – real or virtual */ struct ofp_tdm_port in_tport[0]; /* description of TDM channel */ struct ofp_tdm_port out_tport[0]; struct ofp_wave_port in_wport[0]; /* description of lambda channel */ struct ofp_wave_port out_wport[0]; }; OFP_ASSERT(sizeof(struct ofp_connect) == 8 ); /* Description of a TDM port */ struct ofp_tdm_port { uint16_t tport; uint16_t tstart; uint32_t tsignal; }; /*Description of a wavelength port */ struct ofp_wave_port { uint16_t wport; uint8_t pad[6]; uint64_t wavelength };

13. Example Application Traffic Engineering

14. Example Application Traffic Engineering ..via Dynamic Automated Optical Bypass

15. OpenFlow protocol Controller NetFPGA based OF packet switch NOX Ethernet Hosts AWG WSS (1×9) Fujitsu WSS based OF circuit switch AWG WSS (1×9)

16. More Applications • Integrated network recovery • Service classification and Quality-of-service • Identify aggregated packet flows & classify them • some take all packet paths, all circuit paths, or mix of circuit/packet paths • some allocated different levels of bandwidths, some unallocated • In - Datacenter • – variable bandwidth between clusters • Unified slicing of network resources • – both packet & circuit • Integrated routing

17. Summary • OpenFlow is a large clean-slate program with many motivations and goals • convergence of packet & circuit networks is one such goal • OpenFlow simplifies and unifies across layers and technologies • packet and circuit infrastructures • electronics and photonics • and enables new capabilities in converged networks • with real circuits or virtual circuits • Next Demos • larger demo of QoS capabilities enabled in converged networks • business models for ISPs and TSPs enabled by unified virtualization