Software Defined Networking & OpenFlow

Transcription

1 Software Defined Networking & OpenFlow Steven Wallace Executive Director, InCNTRE

2 Universities are like time machines to the future two decades of BYOD 15 years of 10Mb/s to each pillow accustom to unlimited bandwidth o university to university o student to student o researcher to data

3 Universities, mostly, play by same rules HIPAA, FERPA, PCI-DSS, SSNs Classroom technology must work flawlessly Network is competitive asset

4 Why you should care about SDN/ OpenFlow In a few years you'll be building,operating, and using SDN Networks

5 Oh, I forgot, we're in time machine! You're using an SDN now, as the Internet2 Advanced Layer 2 Network (aka NDDI, OS3E, Innovation Platform, etc.). The IU Global NOC developed 100% of the "S" in the Internet2 SDN.

6 SDN is an architecture Separation of Control and Data Planes Centralization of Control Plane

7 CLI, SNMP, TFTP Features Value Add Ethernet Switch Control Plane Embedded Operating System Data Plane Table-based (e.g., TCAM/CAM) high-speed forwarding engine

8 Control Plane Features OpenFlow Controller Value Add OpenFlow Protocol Embedded Operating System implements OpenFlow Data Plane Table-based (e.g., TCAM/CAM) high-speed forwarding engine

9 Features OpenFlow Controller Value Add OpenFlow Protocol Each switch connects directly with OF Controller

10 OpenFlow is both a protocol and an API OpenFlow is used by a central controller to program the behavior of network equipment (e.g., switches, routers, etc.)

11 Flow Table Header Fields Counters Actions Priority Ingress Port Ethernet Source Addr Ethernet Dest Addr Ethernet Type VLAN id VLAN Priority IP Source Addr IP Dest Addr IP Protocol IP ToS ICMP type ICMP code Per Flow Counters Received Packets Received Bytes Duration seconds Duration nanosecconds Forward (All, Controller, Local, Table, IN_port, Port# Normal, Flood) Enqueue Drop Modify-Field

12 Flow Table Header Fields Counters Actions Priority If ingress port == 2 if IP_addr == if Eth Addr == 00:45:23 Drop packet re-write to , forward port 3 add VLAN id 110, forward port if ingress port == 4 forward port 5, if Eth Type == ARP If ingress port == 2 && Eth Type == ARP forward CONTROLLER forward NORMAL

13 OpenFlow Programmability Network features are developed in software on a standard controller platform The behavior of the network becomes an extension of your enterprise applications

14 The Network will become a platform

15 OpenFlow use cases Cloud orchestration Network access control Bandwidth on demand Traffic engineering Application/tenant isolation New stuff you just thought up

16 OpenFlow use today

17 OpenFlow Origin Clean Slate Program at Stanford o o Early work on SANE circa 2006 (security architecture) inspired Ethane circa 2007, which lead to OpenFlow 2009 Stanford publishes OF spec 2009 Nicira Series A funding 2010 Big Switch seed funding 2011 Open Network Foundation is created 2012 Google announces migration to OF (migration started in 2009)

18 OpenFlow's Owner: Open Networking Foundation ONF members: A10 Networks, Alcatel-Lucent, Argela, Big Switch Networks, Broadcom, Brocade, Ciena, Cisco, Citrix, Colt, Comcast, CompTIA, Cyan, Dell, Deutsche Telekom, Elbrys, Ericsson, ETRI, Extreme Networks, EZchip, F5, Facebook, Force10 Networks, France Telecom Orange, Fujitsu, Gigamon, Goldman Sachs, Google, Hitachi, HP, Huawei, IBM, Infinera, Infoblox, Intel, IP Infusion, Ixia, Juniper Networks, Korea Telecom, LineRate Systems, LSI, Luxoft, Marvell, Mellanox, Metaswitch Networks, Microsoft, Midokura, NCL Communications K.K., NEC, Netgear, Netronome, Nicira Networks, Nokia Siemens Networks, NTT Communications, Oracle, PICA8, Plexxi Inc., Radware, Riverbed Technology, Samsung, SK Telecom, Spirent, Telecom Italia, Tencent, Texas Instruments, Vello Systems, Verizon, VMware, Yahoo,

19 The OpenFlow Standard OpenFlow o current hardware OpenFlow 1.1 o interim standard OpenFlow 1.2 o interim standard Understanding standards compliance can be complex. Buyer beware. OpenFlow 1.3 o new equipment

20 Ron Milford co-chair of ONF testing group InCNTRE hosts ONF plugfests InCNTRE First Lab To Offer OF Certification!!

21 Hardware side of disruption Merchant Silicon: off the shelf chips that perform packet processing at high speed vs. vertically integrated custom designed chips designed & built by switch vendors. Q: What do the following have in common: Juniper QFX3500, IBM BNT RackSwitch G8264, Alcatel- Lucent OminiSwitch 6900, Cisco Nexus 3064, HP 5900AF 48XG, Dell Force 10 S4810, and Arista 7050S-64? A: Broadcom silicon. ODMs (Original Design manufacturer) have their own design, typically based on merchant silicon.

22 The OpenDaylight Project SDN/OpenFlow controller Open source project organized under the Linux Foundation members include: Big Switch, Brocade, Cisco, Citrix, Ericsson, IBM, Juniper, Microsoft, redhat, NEC, vmware, Arista, Dell, Fuitsu, HP, Intel, etc...