OpenFlow Technology Investigation Vendors Review on OpenFlow implementation

Transcription

1 OpenFlow Technology Investigation Vendors Review on OpenFlow implementation Ioan Turus, NORDUnet GN3 JRA1 T1&2, Copenhagen,

2 Outline! Software Defined Networks (SDN)! Introduction to OpenFlow! Vendors review on OpenFlow Implementation Ciena Juniper Cisco Brocade BigSwitch IBM HP NEC Arista Networks Pica8! Collaborations! ONF! Conclusions

3 Classical network architecture! Specialized design built into a box! Specialized hardware! Specialized operating system! Specialized applications! Control plane distributed to every network element Protocols Network OS Specialized forwarding hardware Protocols Network OS Specialized forwarding hardware Protocols Network OS Protocols Network OS Specialized forwarding hardware Specialized forwarding hardware Protocols Network OS Specialized forwarding hardware Protocols Network OS Specialized forwarding hardware Specialized Features Specialized Control Plane Specialized hardware

4 SDN (Software Defined Networks) 3. Open APIs Switching Routing T.E. App. X 2. Network OS Network OS 1. Open vendor independent interface (e.g. OpenFlow) OpenFlow Agent Simple forwarding hardware OpenFlow Agent Simple forwarding hardware OpenFlow Agent OpenFlow Agent Simple OpenFlow Agent forwarding hardware Simple forwarding hardware OpenFlow Agent Simple forwarding hardware Simple forwarding hardware Applications Any control plane Merchant Switching Chips

5 Introduction to OpenFlow! The Ethernet Switch architecture Ethernet Switch

6 Introduction to OpenFlow! The Ethernet Switch architecture! Data plane (or forwarding plane)! Control Plane Control Plane (Software) Data Plane (Hardware)

7 Introduction to OpenFlow OpenFlow Controller OpenFlow Protocol Control Plane OpenFlow Data Plane (Hardware)

8 OpenFlow Example OpenFlow Controller Topology changes Traffic statistics Arriving packet notifications Apps Apps Network OS (Un) install rules Query statistics Send packets

9 OpenFlow Example SW layer HW layer MAC src MAC dst OpenFlow Agent Flow Table IP src IP dst TCP sport TCP dport Action * * * * * port_2 OpenFlow Controller Port 1 Port 2 Port 3 Port 4 Port 5 Port

10 OpenFlow Specs! OpenFlow 1.0! Released at the end of 2009, target for campus research! The first stable and most deployed version at the moment! If a packet match in the flow table => perform action! OpenFlow 1.1! Released on March 2011, target for WAN research! If a packet match in the flow table => look at instructions! Instructions = actions, OR set actions in the action set OR change pipeline processing! Allows multiple flow tables! OpenFlow 1.2! Approved on Dec 2011, described as Extensible protocol! Support for IPv6 and support of multiple controllers! OpenFlow 1.3! Add Meter table in support of QoS

11 OpenFlow Vendors Review! Goals:! How do vendors see SDN where do they focus on the SDN layers: Hardware Controllers Applications! How do vendors implement OpenFlow What equipment is OpenFlow enabled What version of OpenFlow is implemented SW. (firmware) vs HW. (chips) implementation

12 Ciena! Ciena announced in October 2012 the support of OpenFlow! OpenFlow implementation in pre-production phase! Focus on openness at both API levels! APIs for applications to network control software! APIs enabling network control software to control physical equipment! Ciena announced in November 2012 their SDN strategy! Aligned to their OP (Open interfaces/optical Packet Networks) vision! Hardware strategy (OF 1.0 enabled in hybrid mode)! 5400 Switch series Now on 4x10G and 32x1G cards Plan for 48x10G, 1x100G, 4x100G and 400G cards! 5160 and 5142 Service Aggregation Switch (mid 2013)! Software strategy! Not looking into controller development! Tests with BigSwitch controller Ciena 5400 Series

13 Juniper! Juniper announced in June 2012 their first SDN strategy! Focus on data center solutions as safe approach! Focus on northbound API while lowering the use of OpenFlow (but not it s role)! JunOS SDK includes OF-Client 1.0! Juniper OF enabled equipment:! MX routers! EX switches Juniper MX series Juniper EX series! Unclear if Juniper will brand its own SDN controller or source another one! Juniper MX router & BigSwitch Controller! Future plans! OpenFlow 1.3 to be enabled on MX and EX equipment in 2013

14 Cisco! Cisco introduced in June 2012 their official SDN architecture called Cisco Open Network Environment (Cisco ONE)! Platform which allows customers to easily customize it! Contains APIs, agents, controllers and overlay network technologies that enable programmability of different layers! Cisco One Platform Kit (PK) providing APIs for the developers working with Cisco s OSs (IOS, IOS-XR, NX-OS)! Cisco announced to provide proof-of-concept OF 1.0 agents on Catalyst 3750-X and 3560-X switches, but generally it is slow in adopting OF! For Cisco, OpenFlow is just an enabler of the hardware programmability in the big SDN picture! Cisco call their approach on OpenFlow as wait-and-see attitude

15 Brocade! Brocade firstly introduced OpenFlow support in June 2010! Brocade looks into using SDN for WAN and SP solutions! Initial OpenFlow support on MLX router! Brocade enables OF 1.0 on the equipment shipped with OS 5.4! Brocade NetIron 5.4 OS provides:! Hybrid-mode OpenFlow support (OF enabled per-port basis)! L2/L3 forwarding! High-performance 100G (also 1 and 10 G)! OF runs on dedicated ASICs giving full line-rate to the flows! In November 2012 Brocade acquired Vyatta! Software expertise in SDN Brocade MLX series

16 BigSwitch! A start-up created by former Stanford MS/PhDs and engineers from Cisco, Juniper, VMware etc.! The main start-up in SDN market after Nicira was acquired by VMware (for 1.2bUSD)! Developing their own open source version of OpenFlow controller based on FloodLight (open-source controller)! Plan is to provide their open-source controller to market so it gets mature and familiar to possible customers! Business plan is to plan/develop apps and complex network solutions targeted to run on top of their own controller

17 IBM! Announced SDN strategy in Oct 2012! Looking into all-sdn-layer coverage! Data center driven focus! IBM Programmable Network Controller (PNC)! OpenFlow 1.0 compliant! Up to 300k flows! not cheap! IBM RackSwitch G8264! OpenFlow 1.0 compliant! 48 SFP/SFP+ x 10 G! 4 QSFP x 40 G IBM G8264! Missing a core switch for complete networking solution (use Brocade/ Juniper)

18 HP (I)! HP started looking into OpenFlow in ! Announced SDN strategy in Oct 2012! Looking into all-sdn-layer coverage! HP Virtual Application Networks SDN Controller! Full support for the OpenFlow protocol! Available as SW or HW appliance! Open APIs for 3 rd party SDN app development

19 HP (II)! HP switches in support of OF! HP 8200! HP 5400! HP 3500! HP 3800! HP APIs and applications! Network virtualization! Distributed load balancing! SDN security application

20 NEC! One of the first vendors involved in SDN development! NEC ProgrammableFlow family of products! NEC PF controller OF network control Virtual networking Custom filtering! NEC PF 5240 Switch OF 1.0 enabled! NEC PF 5820 Switch OF 1.0 enabled! NEC PF Management Console End-to-end visualisation Virtual tenant network view etc.! Future plans! Continue development of northbound apps for network management support NEC 5240 NEC 5820 NEC PF Management Console

21 Arista Networks! Young company based on the merchant silicon market (Broadcom, Marvell or Fulcrum)! Focus on data center switching! OpenFlow 1.0 Agent enabled on Arista switches! 7050 switch 16xQSPF+ for 40G 62 and 52xSFP+ for 10G! 7150 switch 24xSFP+ or 52xSFP+ 1G or 10 G 4xQSFP+ for 40G! Arista doesn t see OpenFlow as a key element in enabling SDN! Collaborations with BigSwitch, VMware and Nebula controllers Arista 7150 switch series! Arista proprietary SDN solutions based on Arista EOS and Arista FPGA switches

22 Pica8! Start-up founded in 2009! Design open switch and router platforms! Based on merchant silicon opportunities! Provides 3 switches that are OpenFlow 1.0 enabled Pica Pica Pica Ø 48x 1G Ø 4x 10G SFP+ Ø 48x 1G Ø 4x 10G SFP+ Ø 48x 10G SFP+ Ø 4x 40G QSFP

23 Collaborations! Juniper MX router and BigSwitch Controller! Demonstrated at Open Networking Summit at Stanford U. in Oct 2011! First commercial collaboration-based OpenFlow solution (January 2012)! IBM G8264 top-of-rack switch! NEC ProgrammableFlow Controller! NEC PF5240 and NEC PF5820 Switch! Tervela Data fabric provider Predictable performance of Big Data! Selerity Ultra low latency event data provider Accelerate real-time decision-making for global financial business

24 ONF (Open Networking Foundation)! Founded by 6 major providers! Deutsche Telekom, Facebook, Google, Microsoft, Verizon, Yahoo!..and 50 other member companies (vendors, software suppliers etc)! Drives the development of OpenFlow specifications! ONF requires a membership (+fee) for participation/benefits:! Real-time participation in the evolution of concepts! Interoperability testing! Collaboration with inventors and startups driving OF development!

25 Conclusions! Software Defined Network (SDN) a new trend in support of! Network virtualization! Reducing OPEX! Flexibility! OpenFlow an enabler of SDN! OpenFlow specs driven by ONF! Big vendors changing roadmaps with regards to OpenFlow/SDN! New businesses following new market niches! Nicira, BigSwitch! OF 1.0 supported currently on the commercial equipment! High expectations from OpenFlow development in the near future! Technology expected to get mature not early than 3-5 years