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Programmable WAN Networking is SFW


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Presentation delivered by David Ward at the Open Networking Summit in October 2011.

Details of OpenFlow, New Applications, and how to deliver it to your business. Network engineer & developer focused.

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Programmable WAN Networking is SFW

  1. 1. Programmable WAN Networking is SFW David Ward CTO & Chief Architect Platform Systems Division, Juniper Networks
  2. 2. The Developer and The Network Improving user experience by programming the network Real Problems. Real Revenue. Real Attention.Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  3. 3. Beyond ferreting the information Current approximation techniques are barely sufficient and inefficient APPLICATION WORLD: GUESSING NETWORK WORLD: DERIVING Applications blindly probe the Networks spy on traffic to try network to understand what it to understand applications can deliver ? Network Aware Applications ? ? Application Aware Networking ?  Game ping-stats, doppler, geo-   Deep Packet Inspection location, whois   Stateful flow analysis  Proprietary codecs   Application fingerprinting  Approximate topology/location   Service specific overlay topologiesProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  4. 4. How to ensure the best experience? Bringing together the important elements … … enabled via real-time interaction to influence the experience of the end user Application: Content: End-User: Network: Knows end-device Adjusts placement, Knows what it Real-time interaction capabilities. Proximity selection & insertion wants and is between application, of end-user to content. of content from directed there content and end-users. Controls resources. analytics.Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  5. 5. Let’s talk about why networks & applications need to work togetherProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  6. 6. What brings the two together? THE APPLICATION WORLD THE NETWORK WORLD Bi-directional interaction and programmabilityProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  7. 7. Interaction at multiple touch points Inform network of desired behavior Inform application of data intrinsically in the network THE APPLICATION WORLD THE NETWORK WORLD Network Programmability User service profile Billing profile Programmable Enterprise edge Business edge service profile Touch points Hypervisor stack VPN/mobile/security gateways CDNProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  8. 8. What is possible in this new world? APPLICATION NETWORK NETWORK APPLICATION Applications made better by Networks made better by information from network information from application   Understanding of end-device   Bandwidth and resource optimization capabilities   New service topologies   Real location / topology   Security identification   Adjust behavior to real-time usage   Service-specific packet treatment   Billing granularity Flexibility of service placement Control of resources from applicationsProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  9. 9. How do networks & applications work together?Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  10. 10. There’s more than what you are hearing Software Defined Networks   Separation of existing protocols from forwarding plane for network devices   Programming of forwarding plane via centralized orchestration platforms SOLUTION No interaction with existing routing/ Network Programmability signaling protocols of the Internet   Augment what’s already on the internet   Integration with routing, signaling and policy logic   Modular, programmable touchpoints   Seamless service model via collaborative inputs   Standards-based approachProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  11. 11. Application and network interaction As a developer you will have many ways to influence the network or application Choices depend on your touch point to the network Intuiting Info Communicating Application   OpenStack   Application programming   CloudStack   deriving network Proprietary control network   OpenFlow   channels, pingstats, GSM,   PCE   check-ins,   GenApp   traceroute Dynamic   Provider-­‐based   interaction development   plaBorms   Network spying DPI, Netflow, Network informing   ALTO   on application IPDR, IDS application   BGP-­‐TE,  BGP-­‐CDNI  Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  12. 12. How do we make this happen? Without breaking everything …THE APPLICATION WORLD THE APPLICATION WORLD Real-time topology understanding (ALTO, BGP-TE) SI   ISV   Service   Research   Enterprise   Partner   Partner   Provider   InsKtuKon   Customer   Steering traffic through optimal paths Web Services API (PCE) Network Orchestration Across Networks Programmability Selecting specific traffic OpenFlow GENAPP BGP-TE (OpenFlow) ALTO Mgmt PCE Network APIs …   New touch points: gateways, billing collectors, service appliances, CDN, DPI THE NETWORK WORLD THE NETWORK WORLD Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  13. 13. The protocols Network Intelligence Policy Enforcement / Function Path Computation Service Location Query Point ProvisioningDelivery Vehicle ALTO PCE OpenFlow Services Registry BGP-TE SMI GENAPP Service Engineered Paths Network intelligence Path computation and Policy enforcement Service location query point establishment Where is “it” in the Path Computation Permit/Deny policy Centralize/Distributed network Element (PCE) for enforcement through registration for services, determining traffic path programmable flow filters application resources and and setup (OpenFlow) / SMI content cache locations Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  14. 14. ROUTER: CONTROL AND DATA PLANES AUGMENT CONTROL PLANE, CONTROL PKT. FWDG Abstraction level: data plane (low), control plane (high) PCE Controller ALTO etc. PCEP OF ALTO, BGP-TE Router Control Plane Routing MPLSOpenFlow … ProtocolsIngress Packet Packet Egress Decap RIB, LIB, … Decap IFL Feature OFF Feature Execution Execution IFF Feature Output IFL Execution Feature Exec Route lookup Router Programmable Networking is SFW Copyright © 2011 Juniper Networks, Inc.
  15. 15. SHIPS IN THE NIGHT VS. INTEGRATED “Ships-in-the-Night” “Integrated” Control Control Plane OpenFlow Plane OpenFlow Router Router •  A subset of ports controlled by OF, another •  Use OF for feature definition – augment the subset controlled by router’s native CP – native control plane physical resources are partitioned •  No longer partitioning of resources •  Some level of integration: “OF_NORMAL”: •  Can operate at different abstraction levels •  Implementer free to define what “normal” is (low-level like OK1.0 or higher level) •  May not be what router normally doesProgrammable Networking is SFW Copyright © 2011 Juniper Networks, Inc.
  16. 16. INTEGRATED FORWARDING ZONES  Using a common API, we to have multiple programming entities sharing the same Layer 1-7 devices  Layer-3 device could have   IGP/BGP zone (default)   OpenFlow zone   PCE/LSP zone   ALTO zone  Only one zone permitted per logical port with ability to ‘drop through; to default zone   The way VRFs work today  Arbitration function necessary to ensure clean resource split – no deadlock states permittedProgrammable Networking is SFW Copyright © 2011 Juniper Networks, Inc.
  17. 17. Orchestration and Development Platforms   Tradi&onal  IT:   –  OperaKon/Billing  systems  =  device  and  sAPI Web Services ubscriber  management   •  COPS,  Radius,  Diameter,  netconf,  DHCP,  CAPWAP,  GSMP   Orchestration Across Networks   Emerging  Network  Func&on  Specific   –  SLA  monitoring,  OTT  virtualizaKon,  Path  management,  Unified  CommunicaKon   Operation Emerging Emerging New   Emerging  Service  Specific   Network Billing Service Provider- –  Systems Flow  intelligence,  user  telemetry  informaKon,  sensor  networking,  Based Function Specific service   Specific Platforms profile  updates,  network  appliance  and  CDN  control     New  Provider  Based  Development  Pla=orms   –  Specific  funcKonality  for  a  specific  customer  set:  mobile  phone,  STB  Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  18. 18. Network Operators Building Development Platforms Network operator innovation centers around the world Pla=orm  poten&al:  Reaching  ~53%  of  world  popula&on;  Equals  ~64%  of  world  GDP  Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  19. 19. Networked application examples   Content / Service Routing   Locate best copy of content for the end user, using customer rules   Managed content distribution   Content prepositioning to caches   Live events   Map-Reduce class of applications   High-end distributed computing   Cloud OS network operations   Move VMs / Apps / Storage between locations   Cloudburst   Flexibly, on-demand allocate cloud & network capacity to customers   Security   DDoS attack preventionProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  20. 20. What is a Service Engineered Path?  Tunneling/switching technology that provides a path to specific service functions  Enables selective traffic redirection based upon ephemeral classifiers  Signaled paths requested via PCE – Path Computation Element   Standardized API Ephemeral  Classifiers   Service  Delivery   Ephemeral  Classifiers   Orchestrator   SMI   OpenFlow   OpenFlow   Control   Feedback  Loop   Ephemeral   Service  Engineered  Path1   DPI   Classifiers   MPLS  RSVP/LDP  LSP,  VLAN,  IP  Tunnel   EC   Service  Engineered  Path2   Applica&on   EC   SDK   SEPR   Service  Node   Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  21. 21. Example: service appliance pooling Pre-­‐SEP  Service  Appliance  Topology   Edge  Router1   Edge  Router2   Edge  Router3   NAT   FW   IDP   NAT   FW   IDP   SBC   DPI   WCCP   Service  Engineered  Paths  Appliance  Pooling  Topologies   Local  Appliance  Pooling   Centralized  Appliance  Pooling   SEPR1   SEPR2   SEPR3   SEPR4   SEPR5   SEPR6   Service  Engineered  Path2   Service  Engineered  Paths   Service  Engineered  Path3   Service  Engineered  Path1   NAT   FW   IDP   SBC   DPI   WCCP   NAT   FW   IDP   SBC   DPI   WCCP   Local  Appliance  Resource  Pool   Centralized  Appliance  Resource  Pool  Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  22. 22. Example: service specific topology Op&mized  SEP  Path  Streaming  Video   Video   Source   Video   Peering   (SEPR)     Video   Non-­‐op&mized  Path  If  desKnaKon  of  subscriber  matches   “opt-­‐in”  profile  forward  traffic  onto   Service  Engineered  Path  else  use   normal  route  path   Video   Video   SEPR1       Subscriber traffic flows may be forced across specific service topologies as dictated by policy   Video traffic for one set of subscribers follows a specific path that is engineered to provide the optimal video experience   Path enabled using Service Engineered Path technology   Non-subscribing enhanced video traffic follows the normal routed path Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  23. 23. Example: Content Request Routing APPLICATION NETWORK NETWORK APPLICATION From where the user is connected… … to where the content is best served 1 2 Network Based on: 3   Network proximity   Network availability   Network congestion Open standard: ALTO Application   Content availability Application Layer Traffic   Content load Optimization   Content capacity Chicago ALTO cost - 200 Content Content Content Amsterdam ALTO cost - 10 This is new because: London ALTO cost - 50   Uses information of the network infrastructure ALTO directs traffic to best POP based   Runs across multiple service providers on network conditions   Mobile & broadband subscribersProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  24. 24. Example: Content Request Routing APPLICATION NETWORK NETWORK APPLICATION   Server Availability   Per-network response times and site availability DNS and Plug-ins   Server Load   Server Capacity New York Chicago Data Center Answer: Where do I get   Network Proximity DNS   Network Availability Chicago! my content?   Network Congestion ISP A Media Server ALTO   London London Data Center DNS ISP B BGP   BGP   Media Server Paris ALTO Server Amsterdam Data Center DNS Media Server ISP CProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  25. 25. Mapping The Traffic Delivery Amsterdam   Chicago   ALTO  Cost  -­‐  10   ALTO  Cost-­‐  200   London   ALTO  Cost  -­‐  50   ALTO directs traffic to best POP based on network conditions Chicago   ALTO  Cost-­‐  200   With London and Amsterdam MFCs overloaded, traffic is diverted to ChicagoProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  26. 26. Example: Bandwidth Calendaring NETWORK APPLICATION Schedule a reserved path for your session… … without having to know the network Technology used:   Real-time topology understanding (ALTO, BGP-TE)   Steering traffic through optimal paths (PCE) Web Services API   Reservation transaction (WebServices API)   Selecting specific traffic (OpenFlow) Orchestration What would I use this for?   Flexibility of service placement   Scheduled data center backups   Managed content distribution Location 1 Network Location 2   Cloud orchestrationScheduled application/session specific path in the network Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  27. 27. Example: Social Networking Today’s wheel of missed fortune Untapped mine of information   Access technology and capability   Mobility events Collected Content/Gaming Approximate   Bandwidth, utilization End User Analytics Platforms End User   Capabilities of device and network Information Location Pure Social   Network location SN topology platform types   Proximity to caches / servers Advertising   Bandwidth / billing / usage caps Commerce   Security profile Communication NetworkProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  28. 28. Tune in - turn on: Be “in the topology” Weak architecture = one-legged tap dancing Continuous, real-time streaming of surrounding content, resources, places, people And this is Where am I? I am here! You’re here! around you: <access> <content>   AcKve  broadcast   <capability> <resources>   Game  broadcast   <BW> <places>   Passive  derivaKon   <profile> <people> … ! “Above the topology” “Visualize the topology” “In the topology” “Below the topology” Low value in navigational coordinates APPLICATION NETWORKProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  29. 29. What did he just say? UNLEASH THE POTENTIAL! PROGRAMMABLE NETWORKING Today  the  two  worlds  are  not  interlocked   DEVELOPMENT PLATFORMS EMERGING AND GETTING A LOT OF VC Enables: Decisions that impact your applications are being made by:   Flexibility of service placement   IT departments   Fungibility of assets   Network equipment vendors   Control of resources   Providers delivering your application   Derivation of telemetry and proximity   Application developersProgrammable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  30. 30. Network Programmability This is not a lottery This is a game of skill Enhance your skills t/develop er   @j u n o s d e veloper   Enhance your applications slideshare .net/juno sdevelope r  Programmable  Networking  is  SFW   Copyright  © 2011 Juniper Networks, Inc.    
  31. 31. JOIN THE REVOLUTIONCREATE. CODE. DEPLOY. EVERYWHERE THE NETWORK WORKS. Copyright  © 2011 Juniper Networks, Inc.