Programmable BitPipe. Andreas Gladisch VP Convergent Networks and Infrastructure, Telekom Innovation Labs

Transcription

1 Programmable BitPipe Andreas Gladisch VP Convergent Networks and Infrastructure, Telekom Innovation Labs

2 How do you program a switch / router today? Vendor N SDK and API Vendor 3 Vendor 2 SDK and API Vendor SDK 1 and API SDK and API Vendor N Switches & Vendor 3 Router Vendor Switches 2 & Switches Router & Vendor Router 1 switches & router High variety of different operation systems, software development kits, API Specific per system vendor and per system generation Closed solutions Usually integration done by vendors Most of software can not be used for other systems or other vendors Hardware - vendor specific software ECO-systems! 2

3 Modularization of software: Learn from principles of IT. Massive lowering of market and innovation barrier. Today: Monolithic box. Multifunctional switch/router Proposal of Split Architecture. Network application plane Software & controller Open flow controller Data forwarding & processing Forwarding plane Data processing plane Split of software centric and hardware centric part; Split of application and control (software); Split of forwarding and processing (hardware). 11/17/ /11/2012

4 Give support for data processing: Network processors. Example 1: Tilera rocessors/tile-gx_family 100 core network processor Example 2: Netronome programmable line-card Example 3: Alcatel rocessors/tile-gx_family Lucent 400G net. Process. Source: Gx_Family Source: Enormous progress in chip technology enables highly programmable forwarding / processing hardware. 4

5 Evolution of forwarding elements. From fixed wired To free programmable MAC Destination address MAC Source address Q-Tag (S-VLAN) Q-Tag (C-VLAN) Client Length Type Header Address field a binary number DATA Network application IP IP Header IP Source DATA Destination Controller Semantic of the number A box called switch A box called router A universal programmable box The revolution just started... 5

6 Telekom Innovation Laboratories. SDN Landscape. Home network Telco infrastucture SDN for wireless LAN s Mobile Radio Network Access Network Aggregation Network Datacenter Interconnection Global Packet Core Network Datacenter Optical Transport Network (Metro/Regio) Optical Transport Network (Backbone) 19. Juni

7 Carrier Class SDN Focus Areas of SPARC Potential Issues Identified Concrete Solutions proposed Deployment Scenarios Considered Virtualization Flow OAM Resiliency Access & Aggregation Networks Service Creation Topology Discovery Transport Control Schemes Openness & Extensibility Interoperability Sustainability Multilayer Aspects QoS No No No Scalability Aspects Backbone / Multilayer Networks Extension to other link technologies Multilayer optimization No No No Network Management No 19. Juni

8 MPLS OpenFlow Demonstrator Proof-of-concept prototype for OpenFlow MPLS networks UNI IGMP Control Protocols Domain MGMT UNI Trigger Processor NOX + MPLS support NNI Protocol Proxy Quagga OSPF Virtual IF ctrl Quagga LDP Centralized control Intelligence NNI OSPF, LDP RSVP-TE, BGP MPLS CP MPLS CP Client Edge Switch Switch Switch Core MPLS MPLS CP Core MPLS Video Control Protocols WEB Client Edge Switch Switch basic forwarding functions Core MPLS Clients OPENFLOW MPLS Aggregation IP/MPLS core Services Enhanced OpenFlow controlled MPLS software switches with 1:1 Protection, BFD based OAM support and PseudoWiresOpenFlow controller cooperating with legacy distributed MPLS control plane Provisioning of end-to-end tunnels through IP/MPLS core and OpenFlow Aggregation domains Best effort tunnels for internet services Multicast tunnels for IPTV Protected tunnels for premium services (e.g., PWE)

9 Open source approach Demonstrations at GENI Engineering Conference (US, 15 th March) Future Internet Assembly (Budapest, EU, May) IPoP 2011(Japan, 3-4 June) Future Network and Mobile Summit (Warsaw, EU, June) Open Source components at 9

10 Distributed BRAS function. Authentication with Software Defined Networking. BRAS RADIUS Example of alternative AAA approach. AAA & user profile server Resource configuration* AAA & user profile server AAA App AGS2 PPPoE AAA inform. AGS1 RGW DSLAM with PPPoE intermediate agent AAA inform. Includes port information controller * Or via controller 17/11/

11 Future option in access/aggregation: Virtualized infrastructure and core network services.

12 What is missing? Beyond standard x86 server + OpenVSwitch. Reference design for SDN compliant forwarding network element and controller that fulfill carrier requirements Complex processing beyond basic forwarding Scalable configuration Thousands of ports Terabit throughput, millions of flows Manageability and integration in large-scale infrastructure Harmonize paradigms for ISP and data center Overall architecture and definition of Application Programming Interfaces) 12

13 What is missing? A general hardware abstraction Layer. 19. Juni

14 OpenStack: Open source cloud management / orchestration. 19. Juni

15 Thank you for your attention!