Software Defined Networks (SDN)

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1 Belgium & Luxembourg April 18th, 2013 Introduction to Software Defined Networks (SDN) and its relevance in the DC Bjørn R. Martinussen DC Solutions Architect Cisco and/or its affiliates. All rights reserved. Cisco Connect 1

2 What is Software Defined Networking (SDN)? Many Definitions Openflow Controller Openstack Overlays Network virtualization Automation APIs Application oriented Virtual Services Open vswitch

3 At the conclusion of this session you Session will: Objectives Understand what SDN Means to Cisco Cisco ONE Strategy

4 SDN Definition 2013 Cisco and/or its affiliates. All rights reserved. Cisco Connect 4

5 SDN Is An open solution for VM mobility in the Data-Center A way to reduce the CAPEX of my network and leverage commodity switches A solution to build virtual topologies with optimum multicast forwarding behavior A means to scale my fixed/mobile gateways and optimize their placement A way to distribute policy/ intent, e.g. for DDoS prevention, in the network A way to optimize link utilization in my An open solution for customized flow network enhanced, application driven Simplified forwarding control in and between Data routing Centers A platform for developing Operations Develop solutions at software speeds: new control planes I don t want to work with my network vendor or go through lengthy standardization. A means to get assured quality of experience for my cloud service offerings Enhanced A way to optimize broadcast TV delivery by optimizing cache Agility placement and cache selection A way to configure my entire network as a whole rather than individual devices A solution to build a very large scale layer-2 network A means to do traffic engineering without MPLS A way to build my own security/encryption solution A solution to get a global view of the network topology and state A way to scale my firewalls and load balancers New Business Opportunities Cisco and/or its affiliates. All rights reserved. Cisco Cisco Confidential Connect 5

6 Real Business Values of SDN Flexibility: IT groups can become more agile; deployment backlogs are less problematic Departments are more easily able to self-select services including internal, 3 rd party and external cloud services Automation: Easily add features (protect, segment, provision, add policies) to new workloads, groups, branches, employee devices and cloud resources Visibility drives speed: Holistic view of application connectivity and external needs (branch, device) Applications can ask for resources, routes, and access instantaneously Heat maps (by application) of traffic across the campus and data center Revenue generation (for SPs): Service providers can provide more value-added services to customers Innovation in software can accelerate service delivery and create stickiness

7 What is SDN? (per Wikipedia definition) Software defined networking (SDN) is an approach to building computer networks that separates and abstracts elements of these systems 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 7

8 In other words In the SDN paradigm, not all processing happens inside the same device Cisco and/or its affiliates. All rights reserved. Cisco Cisco Confidential Connect 8

9 Processi ng Plane Where it runs How fast these processes run Type of processes performed Control Plane Switch CPU Data Plane Dedicated Hardware ASIC s In the order of thousands of packets per second Millions or Billions of packets per second Routing protocols (i.e. OSPF, IS-IS, BGP), Spanning Tree, SYSLOG, AAA (Authentication Authorization Accounting), NDE (Netflow Data Export), CLI (Command Line interface), SNMP Layer 2 switching, Layer 3 (IPv4 IPv6) switching, MPLS forwarding, VRF Forwarding, QOS (Quality of Service) Marking, Classification, Policing, Netflow flow collection, Security Access Control Lists Control Plane and Data Plane Two fundamental terms to begin understanding the concepts around SDN 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 9

10 Over the years this network paradigm has remained mostly intact Cisco and/or its affiliates. All rights reserved. Cisco Cisco Confidential Connect 10

11 Where did this SDN thing come from? 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 11

12 Stanford University Clean Slate Project explore what kind of Internet we would design if we were to start with a clean slate and years of hindsight Cisco and/or its affiliates. All rights reserved. Cisco Cisco Confidential Connect 12

13 Clean Slate led to the development of 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 13

14 What is Openflow? (per Wikipedia definition) OpenFlow is a Layer 2 communications protocol that gives access to the forwarding plane of a network switch or router over the network 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 14

15 First statement for today 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 15

16 Openflow does not equal SDN Openfl ow Software Defined Networking Openflow is one flavor, or a subset, of SDN Cisco and/or its affiliates. All rights reserved. Cisco Cisco Confidential Connect 16

17 In the SDN architecture, the control and data planes are decoupled, network intelligence and state are logically centralized, and the underlying network infrastructure is abstracted from the applications open standard that enables researchers to run experimental protocols in campus networks. Provides standard hook for researchers to run experiments, without exposing internal working of vendor devices Cisco and/or its affiliates. All rights reserved. Cisco Connect 17

18 I wish we had done [the separation] in the Internet design, but we didn t In a very interesting way you have an opportunity to reinvent this whole notion of networking Open Networking Summit Keynote, April 16 th 2013 Just because it says software-defined networking doesn t mean they re the same thing. That s like cloud They re not the same thing, and similarly you can invest in an arbitrarily large number of software-defined networks. Vint model-for-a-better-internet/ Cerf: SDN is a Model for a Better Internet

19 Industry Standards Technical Advisory Group Chair, Working Groups: Config, Hybrid, Extensibility, Futures/FPMOD/ OF2.0 Open Source Cloud Computing project Overlay Networking Projects, Cisco Innovations: FEX Architecture Open Network Research Center at Stanford University Working Groups: Quantum API Donabe Cisco Innovations: OpenStack API for Nexus OpenStack Extensions Overlay Working Groups: NVO3, L2VPN, TRILL, L3VPN, LISP, PWE3 API Working Groups: NETCONF, ALTO, CDNI, XMPP, SDNP, I2AEX Controller Working Groups: PCE, FORCES 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 19

20 And Data Centers Need to Evolve Fabric Based Distributed Application Driven Cloud Cloud MonitoringProvisioning Networking Apps Apps Apps Programmable EndUser Apps Provisionable Fabric L2, Comput Comput Storage Storage Services Services e e L3 L2, L3 Comput Comput Storage Storage Services Services e e Integrated Fabric and Cloud World of Many Clouds Manual Provisioning Policy-based Provisioning Service-centric Provisioning Limited scaling Flexible Anywhere, Anytime Rack-wide VM mobility Scale Physical and Virtual/ Cloud Cross-cloud VM Mobility DC-wide/Cross-DC VM Mobility 2012 Cisco and/or its affiliates. All rights reserved.

21 Network Programmability Models 1 Programmable APIs 2a Classic SDN Application s Application s 2b Hybrid SDN Application s 3 Network Virtualization/ Virtual Overlays Application s Vendorspecific APIs NX1kV Control Plane VSM Control Plane Vendorspecific APIs Vendorspecific APIs* Vendorspecific APIs Virtual Control Plane Virtual Data Plane Overlay Protocols Control Plane Control Plane OpenFLow and/or Vendor specific OpenFLow and/or Vendor specific Control Plane Control Plane Data Plane Data Plane NX1kV Data Plane VEM Data Plane Data Plane

22 Cisco ONE 2013 Cisco and/or its affiliates. All rights reserved. Cisco Connect 22

23 SDN Delivery Options Software API Application Control Controller Overlays Applications Controller Overlay Networks Fabric Fabric Fabric L2, L3 Compute Compute Storage Storage Services Services L2, L3 Compute Compute Storage Storage Services Services L2, L3 Compute Compute Storage Storage Services Services Writing to single onepk API Infrastructure Controlled by Applications Wide-reach, beyond Data Center Policy-based Provisioning Scale Physical & Virtual/Cloud DC-wide/Cross-DC VM Mobility onepk API exposes Fabric capabilities Policy-based Provisioning Multiple Tunnels (Visibility?) Scaling (Overlay disjoint from Physical) onepk API in Nexus 1000V (late CY13)

24 Cisco Open Network Environment (Cisco ONE) Programmable, Application Centric Industry s Most Comprehensive Networking Portfolio Hardware + Software Physical + Virtual Network + Compute Applications Platform APIs Overlays Networks Network One Platform Kit (onepk) - Programmatic APIs for Network HW (IOS, IOS-XR, NX-OS) - Evolutionary, Investment Protection 2.a Controllers And Agents Open Clouds with Nexus 1000V - Multi-hypervisor - Multi-service - Controller SW (onepk, Openflow, ) - Multi-cloud - OpenFlow 1.x support - Openstack support SDN:

25 Conversation is Maturing, becoming Pragmatic Programmable networks can be built in many ways With or without Openflow can leverage other protocols (e.g. PCEP*) With or without controller/sdn can leverage built-in APIs (e.g. onepk) Controller must program & manage flows Provisioning, Monitoring tools are NOT controllers they existed before SDN Controller north-bound APIs remain proprietary Network virtualization and server virtualization impact infrastructure differently Server virtualization enables server consolidation (increases efficiency) Network virtualization enables broader VM mobility, scalable multi-tenancy (drives more traffic on the network) Unlike servers, network has always been a shared resource it has always been Efficient! Hybrid deployment models are critical to most customers Provides evolutionary deployment model Protects customers investment in network equipment, processes & operations, people skills Need smarter, high-performance hardware / ASICs High performance, Low latency, Non-oversubscribed, Overlay aware, Multi-protocol *PCEP: Path Computation Element Communication Protocol

26 onepk: One Platform Kit 2013 Cisco and/or its affiliates. All rights reserved. Cisco Connect 26

27 onepk Architecture C, JAVA, Python, REST, Programmatic Interfaces onepk API Presentation onepk API Infrastructure IOS / XE (Catalyst, ISR, ASR1K) NXOS (Nexus Platforms) IOS XR (ASR 9K, CRS)

28 onepk API Libraries Initial Service Sets Element Utilities Discovery Developer Element Capabilities Configuration Management Interface/Ports Events Location Information Syslog Events and Queries AAA Interface Path Trace Network Element Discovery Service Discovery Topology Discovery Debug Capabilities Tracing Interfaces Management Extensions Data Path Packet/Flow Classifiers Copy/Punt/Inject Statistics Policy Interface Policy Interface Feature Policy Forwarding Policy Flow Action Policy Routing Read RIB Routes Add/Delete Application Routes RIB Events (Route up/ down)

29 Open Network Environment Flexibility to Choose Protocols, APIs and Deployment Models Developer portal ABILITY TO SPAN LAYERS Quantum API Interface descriptions L2 network provisioning L3 and IP Addr. Mgmt. - coming Element Element Capabilities Configuration Management Interface/Ports Events Location Information Packet classifiers Marking Copy/Punt Inject Statistics Utilities Syslog Events and Queries AAA Interface Netflow Events DHCP Events Developer Debug Capabilities Tracing Interfaces Management Extensions Discovery Network Element Discovery Service Discovery Topology Discovery Policy Interface Policy Interface Feature Policy Forwarding Policy Flow Action Policy Routing Protocol Change Events RIB Table Queries RICHNESS OF FEATURES Training & Certification ISVs 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 29

30 onepk Use Case: Automated Network Provisioning Network OS Management Server DC Switch Management agent DC Switch IPC onepk API Management Agent (onepk Application) Container Automate network configuration Use the same process and tools currently in use for servers

31 onepk Use Case: Deep Packet Modification Data Flow onepk Custom Packet Action Packet Removal Packet Modifier Packet Match onepk Data Path Services Data Plane Packet Inject Data Flow Packet Modification Algorithm Built Using onepk Modifies Selected Packets Business Problem: Need to modify specific fields within select data packets to achieve a desired network behavior. Solution: Developer uses onepk to extract, modify and re-insert specific packets using match, modify and forward techniques. Benefits: Quickly and efficiently modify network behavior or traffic flows based on needs. Examples: Special off-box secret Crypto Packet/flow visibility

32 Cisco ONE Controller 2013 Cisco and/or its affiliates. All rights reserved. Cisco Connect 32

33 Cisco ONE Controller Cisco ONE Controller 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 33

34 Controller to Node Interactions Reactive Unknown Flow Proactive Flow programmed Into FIB Table Application Flow Communication over SSL/TLS Profile Forwarder src If srcip= Then forward Ethernet 3/1 Controller

35 Controller to Node Interactions Aggrega te Flow Flow programmed Into FIB Table Flow programmed Into FIB Table Application Flow Application Flow Communication over SSL/TLS Profile Forwarder src If srcip= Then forward Ethernet 3/1 Micro Flow Controller

36 The SDN reaches beyond the Data Center onepk CSR onepk ASR ISRG2 Data Center Campus / Branch Policy onepk API presentation layer Custom Routing Application Unique Data Forwarding Algorithm Highly Optimized for the Network Operator s Application 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 36

37 Use case Campus Slicing Common Deployment in Higher-Ed today Partition network for multiple usercommunities Solution Topology Independent Forwarding Slice #2 Slice #1 Cisco Purpose-built Controller for Network Slice #3 Slicing Integrated slicing management Programmatic Interfaces (Eg. REST) OpenFlow experimental support (v1.0) Controller experimental SW Consistent policy management for maximum flexibility and Innovation

38 Cloud technology stacks Multi-Hypervisor and Multi-Orchestration Strategy Cloud Portal and Orchestration vcloud Director/ DynamicOps System Center Open Source CIAC/ OpenStack/ Partners NSM NSM NSM NSM Virtual Network Infrastructure ASA 1KV vwaas CSR 1KV vpath ASA 1KV vwaas CSR 1KV vpath ASA 1KV vwaas CSR 1KV vpath ASA 1KV vwaas CSR 1KV vpath Nexus 1KV Nexus 1KV Nexus 1KV Nexus 1KV UCS Central Hypervisor vsphere Hyper-V Open Source (Xen, KVM) vsphere, Hyper-V, Xen, KVM ONE Controller Computing Platform Physical Network Storage Platform UCS Nexus 2K-7K + ASR 9K (Edge) UCSM onepk Solutions: Vblock, FlexPOD, VMDC, VXI/VDI, HCS, Cross-DC Mobility 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 38

39 Cisco Open Network Environment (ONE) Industry s Most Comprehensive Portfolio Hardware + Software Physical + Virtual Apps Applications Multi-layer API Virtual Overlay Controller (w/ Controller) Virtual Overlays Device One Platform Kit (onepk) - Programmatic APIs for Network HW (IOS, IOS-XR, NX-OS) Apps Apps Programmatic APIs Network Network + Compute Device a Controllers and Agents Device Open Clouds with Nexus 1000V - Multi-hypervisor - Multi-service SDN: - Controller SW (OpenFlow, onepk) - Multi-cloud - Openstack support - OpenFlow Agents

40 Key Takeaways: Cisco ONE for Virtual Networks Network Programmability Enabled Via Cisco Position of Strength Multi-hypervisor, Multi protocol, Multi-services + Open Standards across all interface No compromise security, robustness and resiliency battle tested Consistency across Physical, Virtual and Cloud environments Troubleshooting, Visibility, Support Investment protection Consistent OSes, Tools, Processes, Partners, Separation of Du

41 Logical Progression for Customers Nexus 1000V Cisco ONE Controller Controller L2, L3 Fabric ESXi Hyper-V Compute Compute Storage Storage Services Services Overlay Network Per Hypervisor L2, L3 Fabric ESXi Hyper-V Compute Compute Storage Storage Services Services Overlay Network Per Hypervisor Available Today Multi-Hypervisor Separate Control and Data Plane Available end of CY13 Separate Control and Data Plane of Physical and Virtual

42 We can propose you >> To attend the Cloupia deep dive event on the 7th of May. Registration via >> To test UCS Manager, Nexus 1000v, Nexus 7000, OTV, VXLAN, Request your CLOUDLAB account Use as sponsor >> To check our DC Belux public references case: Rossel, Barco, NRB, SMALS, Subaru, Nova Natie >> And to visit our DC booth to get a private demo: Orchestration in the Data Center with Cloupia Unified Computing with UCS Extend you UCS domain to multiple DC's with UCS Central Simplify a virtual deployment with Nexus-1000v, Adapter-Fex and VM-Fex Build a Unified Fabric with FCOE Extend Applications across two physical Data Centers with OTV

43 Thank you Cisco and/or its affiliates. All rights reserved. Cisco Connect 43

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