Experimental Demonstration of OpenFlow Control of Packet & Circuit Switches Vinesh Gudla, Saurav Das, Anujit Shastri, Guru Parulkar, Nick McKeown, Leonid Kazovsky Stanford University Shinji Yamashita Fujitsu Laboratories, Japan

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

Controller Flow Example OpenFlow Protocol RuleActionStatisticsRuleActionStatisticsRuleActionStatistics A Flow is the fundamental unit of manipulation within a switch Routing

Video ClientsVideo Server OpenFlow Testbed λ nm λ nm OpenFlow Controller OpenFlow Protocol GE to DWDM SFP convertor GE O-E NF2 GE E-O NetFPGA based OpenFlow packet switch NF1 25 km SMF to OSA AWG WSS based OpenFlow circuit switch 1X9 Wavelength Selective Switch (WSS)

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

6 Grating Lens Fiber Collimator Array IN OUT MEMS Mirror Array OUT2 IN OUT1 IN Switching output port by tilting MEMS mirror Output Input DEMUX MUX SW Control WSS

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

Video ClientsVideo Server OpenFlow Testbed λ nm λ nm OpenFlow Controller OpenFlow Protocol GE to DWDM SFP convertor GE O-E NF2 GE E-O NetFPGA based OpenFlow packet switch NF1 25 km SMF to OSA AWG WSS based OpenFlow circuit switch 1X9 Wavelength Selective Switch (WSS)

Measurements

/* 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);

TLSTLS OSCOSC C/LC/L 1/51/5 F/WF/W Wavelength Switch Port SONET/SDH Switch Port (OC-768 line rate) ITU grid Frequencies supported ITU grid Frequencies currently being used

/*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 };

Traffic Engineering Example Application

Traffic Engineering Example Application..via Dynamic Automated Optical Bypass

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

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

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