Openflow勉強会　「OpenFlowコントローラを取り巻く状況とその実装」

OpenFlow (@oshothebig)

•• •• • , GMPLS, VLAN tag swapped Ethernet, , etc.

OpenFlow• Galibier OpenFlow Controller • https://github.com/oshothebig/galibier• • 300 Java OpenFlow (http://bit.ly/qXoMGM) • OpenFlow Java (http://bit.ly/pbI3Or)

OpenFlowApplication Application Application Controller OpenFlowSwitch Switch Switch Switch

OpenFlow • NEC UNIVERGE PF5240/ PF5820• Reference • Pronto Systems Implementation 3240/3290• Open vSwitch • IBM RackSwitch G8264 • HP 3500/5400/8200

OpenFlow NOX NEC Trema Nicira NetworksBeacon/Floodlight Big Switch Networks Ryu Midokura NodeFlow NTT Data etc. etc.

NOX• http://noxrepo.org/• GPL v3• Nicira Networks• C++/Python• •• • 2011/1/1 53

Trema• https://github.com/trema/trema• GPL v2• NEC• C/Ruby• • 1 PC•

Beacon/Floodlight• http://www.beaconcontroller.net/ (Beacon) http:// oodlight.open owhub.org/ (Floodlight) Beacon Floodlight GPL v2 Apache License Version 2.0 Java David Erickson (Stanford) Big Switch Networks• IO 600 Flow req/sec @4 (Beacon)

Ryu• http://www.osrg.net/ryu/• GPL v3• NTT( ?) VA Linux• Pure Python• OpenStack

NodeFlow• http://github.com/gaberger/NodeFLow• MIT Licenes• Gary Berger• JavaScript (for Node.js)

Trema NEC UNIVERGE PFBig Switch Floodlight BigController? NOX Nicira NVP?

Floodlight• 12 https://github.com/ oodlight/ oodlight• Beacon • • OSGi • Netty• →T

Nicira Networks• 2 (by Publickey) http://www.publickey1.jp/blog/11/nicira_networks.html• NTT http://www.ntt.co.jp/news2011/1108/110802a.html• Nicira Virtualization Platform (NVP) http://cn.teldevice.co.jp/product/nicira/nicira_nvp/ index.html

Onix• OSDI’10 Onix: A Distributed Control Platform for Large-scale Production Networks http://www.usenix.org/event/osdi10/tech/full_papers/ Koponen.pdf• Nicira Networks, Google, NEC, UC Berkeley• • Zookeeper• 15 C++

Onix Server 1 Server N Network Control Logic Network Control Logic NIB NIB Onix Switch Import / Export Distribution I / E Distribution I / E Switch Import / Export Management Connectivity Network Infrastructure Managed Physical Network InfrastructureFigure 1: There are four components in an Onix controllednetwork: managed physical infrastructure, connectivity

Onix• Network Information Base (NIB) • Forwarding 1 n Forwarding Category Host Link Table Engine Query Create, dest 1 2 Network Node 1 n Port Access attri Notiﬁcation Figure 2: The default network entity classes provided by Synchronize• Onix’s API. Solid lines represent inheritance,DB dashed lines while Conﬁguratio correspond to referential relation between entity instances. The • Transactionalthe dashed linesdatabase numbers on persistent show the quantitative mapping relationship (e.g., one Link maps to two Ports, and two Pull • One-hop, can map to the same Link). Nodes, ports and links DHT Ports eventually-consistent, memory-only constitute the network topology. All entity classes inherit the same base class providing generic key-value pair access. Table 1: Fu

OpenFlow

••••

• Symmetric Message • Hello, Echo, ,• Controller/Switch Message • , ,• Async Message • Packet in, ,

Headerver. type length xid payload 22• length (2 bytes)• Netty LengthFieldBasedFrameDecoder • Floodlight

FloodlightChannelPipeline Controller OFChannelHandler OpenFlow OFMessageEncoder OFMessageDecoder Netty Internal I/O Threads

Switch Controller

Switch Controller HELLO HELLO

Switch Controller HELLO HELLO FEATURE_REQUEST FEATURE_REPLY

Switch Controller

Switch Controller ECHO_REQUEST ECHO_REPLY

Switch Controller ECHO_REQUEST ECHO_REPLY ECHO_REQUEST ECHO_REPLY

Controller.java ( OFChannelHandler)protected void processOFMessage(OFMessage m) throws IOException, SwitchStateException { switch (m.getType()) { case HELLO: .... case ECHO_REQUEST: .... case FEATURES_REPLY: .... default: ....}※ Trema src/switch_manager/ofpmsg_recv.c:ofpmsg_recv()

Switch Controller

Switch Controller PACKET_IN

Switch Controller PACKET_IN PACKET_OUT or FLOW_MOD

Controller.javaprotected void handleMessage( IOFSwitch sw, OFMessage m, FloodlightContext bContext) { switch (m.getType()) { case PACKET_IN: .... default: ....}default

OpenFlow• OpenFlow 1.1 • 1.0• Ver. 1.1 • Ver. 1.1 •• Ver. 1.2 •

• OpenFlow•• OpenFlow • Floodlight

• Open vSwitch

Openflow勉強会　「OpenFlowコントローラを取り巻く状況とその実装」

by Sho Shimizu

Accessibility

Categories

Upload Details

Usage Rights

3 Embeds 3

Statistics