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Open Network OS
Overview as of 2015/10/16
Twitter: @ebiken | ebiken.g@gmail.com
Open Network OS | Overview as of 2015/10/16 1
What is “Network OS”
• Kernel (Typically Linux)
• Switch hardware platform management.
• Boot loader, LED, Sensor, Fan, etc.
• May not be required when running on VM.
• Routing Agent.
• OSPF, RIP, BGP, ISIS, MPLS etc.
• L2 protocol / Tunnel management.
• Datapath SDK/API
• Including FIB management.
Open Network OS | Overview as of 2015/10/16 2
“Network OS” is a software consisting of functionalities below.
• Term “Network OS” is used to describe
different meaning in different context.
• Definition above is what we define in
this document.
Boot Loader
(Utilizing ONIE)
Open Network OS | Overview as of 2015/10/16 3
Network OS components
Bear Metal Switch
(White Box / OCP based)
Merchant ASIC
(Cavium, Broadcom,
Mellanox, Intel)
Other Hardware
Management
Linux Kernel
Data Plane abstraction
(Per ASIC SDK)
Network OS
CPU
DRAM
Network I/F
(Ethernet ports)
Fan, LED, Sensor
L2/L3
Protocol
Daemons
User Interface
(CLI / GUI / API)
OpenFlow
Agent
Common L2/L3/OF APIs
Stats / Status
(SNMP, Syslog)
CPU Board Packet Processing Board
• OpenSwitch (ops)
• http://www.openswitch.net/
• Initial Contributors:
• Hewlett Packard, Accton, Broadcom, Intel, Qosmos, VMWare
and Arista.
• Open Network Linux (ONL)
• http://opennetlinux.org/
• Initial Contributor:
• Big Switch Networks
• Other Contributors:
• Pica8, Accton
Open Network OS | Overview as of 2015/10/16 4
Two “Open Sourced” Network OS
Proprietary Network OS
• Big Switch : Switch Light OS
• Cumulus Networks : Cumulus Linux
• Pica8 : PicOS
• Arista : EOS
Two “Open Sourced” Network OS
Open Network OS | Overview as of 2015/10/16 5
OpenSwich (ops) v.s. Open Network Linux (ONL)
OpenSwitch (ops)
http://www.openswitch.net/
Open Network Linux (ONL)
http://opennetlinux.org/
Features / Functionalities
Open NOS with full L2/L3 Switching Feature.
Routing / OpenFlow agents are included.
Open Platform Distribution for NOS.
Routing / OpenFlow agents NOT included. (only samples)
Target Hardware
OCP (Open Compute) switch, Bare metal (White Box) Switch
Contributors
Hewlett Packard, Accton, Broadcom
Intel, Qosmos, VMWare, Arista
Big Switch Networks (Initial Source Code
Contributor), Pica8, Accton
License
Apache License, v. 2.0 Eclipse Public License and GPL for Kernel
Open Switch (ops)
Open Network OS | Overview as of 2015/10/16 6
Open Switch (ops) Architecture
• Central System state database (including configuration)
• Based on “OVSDB-Server”
• “ops-switchd” to abstract datapath and manage ASIC.
• Based on “Open vSwitch (OVS)”
• OpenFlow functionality is not yet supported.
• Hardware support daemons
• Managing I2C peripherals using Config-YAML library.
• L2/L3 Protocol Daemons
• System Daemons
• Management / Monitoring Daemons
Reference: http://www.openswitch.net/documents/user/architecture
Open Network Linux (ONL)
Open Network OS | Overview as of 2015/10/16 7
Open Network Linux (ONL) Architecture
ONL architecture is well described in below slides
presented at “Okinawa Open Days 2014” by Rob Sherwood, Big Switch Networks CTO.
http://www.e-side.co.jp/okinawaopendays/2014/document/12_Rob-Sherwood.pdf
Appendix
Misc Slides for Reference.
Open Network OS | Overview as of 2015/10/16 8
Appendix
• OpenNSL : Open Network Switch Layer
• http://www.broadcom.com/products/ethernet-communication-and-switching/switching/opennsl
• A library of network switch APIs that is openly available for programming Broadcom network switch silicon
based platforms.
• GitHub:
• https://github.com/Broadcom-Switch/OpenNSL
• Documents:
• http://broadcom-switch.github.io/OpenNSL/doc/html/pages.html
• OF-DPA : OpenFlow Data Plane Abstraction
• http://www.broadcom.com/products/ethernet-communication-and-switching/switching/of-dpa-software
• Specification: OpenFlow Data Plane Abstraction (OF-DPA) Specification
• Broadcom API for OpenFLow 1.3.4.
• OEM & ODM Development Package (ODP)
• Full source code package distributed under Broadcom SLA.
• Community Development Package (CDP)
• An Open API library with Application Development Kit distributed on GitHub.
• GitHub: https://github.com/Broadcom-Switch/of-dpa
Open Network OS | Overview as of 2015/10/16 9
Broadcom APIs

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Open Network OS Overview as of 2015/10/16

  • 1. Open Network OS Overview as of 2015/10/16 Twitter: @ebiken | ebiken.g@gmail.com Open Network OS | Overview as of 2015/10/16 1
  • 2. What is “Network OS” • Kernel (Typically Linux) • Switch hardware platform management. • Boot loader, LED, Sensor, Fan, etc. • May not be required when running on VM. • Routing Agent. • OSPF, RIP, BGP, ISIS, MPLS etc. • L2 protocol / Tunnel management. • Datapath SDK/API • Including FIB management. Open Network OS | Overview as of 2015/10/16 2 “Network OS” is a software consisting of functionalities below. • Term “Network OS” is used to describe different meaning in different context. • Definition above is what we define in this document.
  • 3. Boot Loader (Utilizing ONIE) Open Network OS | Overview as of 2015/10/16 3 Network OS components Bear Metal Switch (White Box / OCP based) Merchant ASIC (Cavium, Broadcom, Mellanox, Intel) Other Hardware Management Linux Kernel Data Plane abstraction (Per ASIC SDK) Network OS CPU DRAM Network I/F (Ethernet ports) Fan, LED, Sensor L2/L3 Protocol Daemons User Interface (CLI / GUI / API) OpenFlow Agent Common L2/L3/OF APIs Stats / Status (SNMP, Syslog) CPU Board Packet Processing Board
  • 4. • OpenSwitch (ops) • http://www.openswitch.net/ • Initial Contributors: • Hewlett Packard, Accton, Broadcom, Intel, Qosmos, VMWare and Arista. • Open Network Linux (ONL) • http://opennetlinux.org/ • Initial Contributor: • Big Switch Networks • Other Contributors: • Pica8, Accton Open Network OS | Overview as of 2015/10/16 4 Two “Open Sourced” Network OS Proprietary Network OS • Big Switch : Switch Light OS • Cumulus Networks : Cumulus Linux • Pica8 : PicOS • Arista : EOS
  • 5. Two “Open Sourced” Network OS Open Network OS | Overview as of 2015/10/16 5 OpenSwich (ops) v.s. Open Network Linux (ONL) OpenSwitch (ops) http://www.openswitch.net/ Open Network Linux (ONL) http://opennetlinux.org/ Features / Functionalities Open NOS with full L2/L3 Switching Feature. Routing / OpenFlow agents are included. Open Platform Distribution for NOS. Routing / OpenFlow agents NOT included. (only samples) Target Hardware OCP (Open Compute) switch, Bare metal (White Box) Switch Contributors Hewlett Packard, Accton, Broadcom Intel, Qosmos, VMWare, Arista Big Switch Networks (Initial Source Code Contributor), Pica8, Accton License Apache License, v. 2.0 Eclipse Public License and GPL for Kernel
  • 6. Open Switch (ops) Open Network OS | Overview as of 2015/10/16 6 Open Switch (ops) Architecture • Central System state database (including configuration) • Based on “OVSDB-Server” • “ops-switchd” to abstract datapath and manage ASIC. • Based on “Open vSwitch (OVS)” • OpenFlow functionality is not yet supported. • Hardware support daemons • Managing I2C peripherals using Config-YAML library. • L2/L3 Protocol Daemons • System Daemons • Management / Monitoring Daemons Reference: http://www.openswitch.net/documents/user/architecture
  • 7. Open Network Linux (ONL) Open Network OS | Overview as of 2015/10/16 7 Open Network Linux (ONL) Architecture ONL architecture is well described in below slides presented at “Okinawa Open Days 2014” by Rob Sherwood, Big Switch Networks CTO. http://www.e-side.co.jp/okinawaopendays/2014/document/12_Rob-Sherwood.pdf
  • 8. Appendix Misc Slides for Reference. Open Network OS | Overview as of 2015/10/16 8
  • 9. Appendix • OpenNSL : Open Network Switch Layer • http://www.broadcom.com/products/ethernet-communication-and-switching/switching/opennsl • A library of network switch APIs that is openly available for programming Broadcom network switch silicon based platforms. • GitHub: • https://github.com/Broadcom-Switch/OpenNSL • Documents: • http://broadcom-switch.github.io/OpenNSL/doc/html/pages.html • OF-DPA : OpenFlow Data Plane Abstraction • http://www.broadcom.com/products/ethernet-communication-and-switching/switching/of-dpa-software • Specification: OpenFlow Data Plane Abstraction (OF-DPA) Specification • Broadcom API for OpenFLow 1.3.4. • OEM & ODM Development Package (ODP) • Full source code package distributed under Broadcom SLA. • Community Development Package (CDP) • An Open API library with Application Development Kit distributed on GitHub. • GitHub: https://github.com/Broadcom-Switch/of-dpa Open Network OS | Overview as of 2015/10/16 9 Broadcom APIs