Open vSwitch - Part 2
A previous presentation in March 2013 at Bay Area Network Virtualization meetup covered the past, present, and predicted future of Open vSwitch. This talk picks up where that one left off, covering improvements made in Open vSwitch since then, new directions for the coming year, and some related work of interest in the industry.
About Ben Pfaff (twitter: @Ben_Pfaff)
Ben joined Nicira as one of its first employees in 2007 after finishing his PhD at Stanford. Since then he has been working on what became OpenFlow and Open vSwitch. He also made some early contributions to the NOX controller. He has been involved with free software since about 1996, when he started work on GNU PSPP and joined the Debian project.
More info @ http://meetup.com/openvswitch
Follow us on twitter @nvirters
Open VSwitch .. Use it for your day to day needsrranjithrajaram
Slides of open vSwitch used for Fudcon 2015.
Main agenda for this talk was.. why openvswitch is a better alternative to Linux bridge and why you should start using it as the bridge for your KVM host.
Netronome's Nick Tausanovitch, VP of Solutions Architecture and Silicon Product Management, Linley Data Center Conference in Santa Clara, CA on February 9, 2016.
Managing Open vSwitch Across a Large Heterogenous Fleetandyhky
Open vSwitch (OVS) is one of the more popular ways to provide VM connectivity in OpenStack. Rackspace has been using Open vSwitch in production since late 2011. In this session, we will detail the challenges faced with managing and upgrading Open vSwitch across a large heterogenous fleet. Finally, we will share some of the tools we have created to monitor OVS availability and performance.
Specific topics covered will include:
Why upgrade OVS?
Measuring OVS
Minimizing downtime with upgrades
Bridge fail modes
Kernel module gotchas
Monitoring OVS
this slide is created for understand open vswitch more easily.
so I tried to make it practical. if you just follow up this scenario, then you will get some knowledge about OVS.
In this document, I mainly use only two command "ip" and "ovs-vsctl" to show you the ability of these commands.
This presentation covers the basics about OpenvSwitch and its components. OpenvSwitch is a Open Source implementation of OpenFlow by the Nicira team.
It also also talks about OpenvSwitch and its role in OpenStack Networking
Open VSwitch .. Use it for your day to day needsrranjithrajaram
Slides of open vSwitch used for Fudcon 2015.
Main agenda for this talk was.. why openvswitch is a better alternative to Linux bridge and why you should start using it as the bridge for your KVM host.
Netronome's Nick Tausanovitch, VP of Solutions Architecture and Silicon Product Management, Linley Data Center Conference in Santa Clara, CA on February 9, 2016.
Managing Open vSwitch Across a Large Heterogenous Fleetandyhky
Open vSwitch (OVS) is one of the more popular ways to provide VM connectivity in OpenStack. Rackspace has been using Open vSwitch in production since late 2011. In this session, we will detail the challenges faced with managing and upgrading Open vSwitch across a large heterogenous fleet. Finally, we will share some of the tools we have created to monitor OVS availability and performance.
Specific topics covered will include:
Why upgrade OVS?
Measuring OVS
Minimizing downtime with upgrades
Bridge fail modes
Kernel module gotchas
Monitoring OVS
this slide is created for understand open vswitch more easily.
so I tried to make it practical. if you just follow up this scenario, then you will get some knowledge about OVS.
In this document, I mainly use only two command "ip" and "ovs-vsctl" to show you the ability of these commands.
This presentation covers the basics about OpenvSwitch and its components. OpenvSwitch is a Open Source implementation of OpenFlow by the Nicira team.
It also also talks about OpenvSwitch and its role in OpenStack Networking
Openstack Networking Internals - Advanced Part
The pictures of the VNI were taken with the "Show my network state" tool
https://sites.google.com/site/showmynetworkstate/
2014 OpenStack Summit - Neutron OVS to LinuxBridge MigrationJames Denton
Presentation titled 'Migrating production workloads from OVS to LinuxBridge'. Presented at the Fall 2014 OpenStack summit in Paris, this slide deck introduced the possibility of migrating live workloads from Open vSwitch to LinuxBridge with minimal downtime.
This is my latest OpenStack Networking presentation. I presented it at OSDC 2014. It includes a lot of backup slides with CLI outputs that show how ML2 with the OVS agent creates GRE based overlay networks and logical routers
The new virtualization technologies and cloud environments are a big challenge for testing network performance. We need a new approach for testing, using realistic scenarios and flexible tools that allow us to generate packets at high speed. Trex is an Open Source network generator with all these batteries included.
This presentation for a talk at the Linux Tag 2014 has a couple of new Slides compared to earlier presentations that explain some different networking models like Flat, VLAN based, 'SDN Fabric based', etc.
Openstack Networking Internals - first partlilliput12
Openstack Networking Internals - first part
Description of the Virtual Network Infrastructure inside an OpenStack cluster
The pictures of the VNI were taken with the "Show my network state" tool
https://sites.google.com/site/showmynetworkstate/
Docker networking basics & coupling with Software Defined NetworksAdrien Blind
This presentation reminds Docker networking, exposes Software Defined Network basic paradigms, and then proposes a mixed-up implementation taking benefits of a coupled use of these two technologies. Implementation model proposed could be a good starting point to create multi-tenant PaaS platforms.
As a bonus, OpenStack Neutron internal design is presented.
You can also have a look on our previous presentation related to enterprise patterns for Docker:
http://fr.slideshare.net/ArnaudMAZIN/docker-meetup-paris-enterprise-docker
Open vSwitch - Stateful Connection Tracking & Stateful NATThomas Graf
Update on status of connection tracking and stateful NAT addition to the Linux kernel datapath. Followed by a discussion on the topic to collect ideas and come up with next steps.
DevOops - Lessons Learned from an OpenStack Network ArchitectJames Denton
Join as we discuss various OpenStack Neutron network configuration options and issues experienced with VLAN, VXLAN, L2population, multicast, Neutron routers, Open vSwitch and more.
As more businesses explore the benefits of cloud computing, network managers will have to increasingly meet the challenges of redesigning their networks for the cloud. This talk will introduce the basic concepts of Open vSwitch & Openflow and show how these technologies can help satisfy these needs. We will also explain how Open vSwitch fits into XCP and XenServer and routing of dataflows.
First part of talk discussing the networking challenges that cloud implementers face.
- Networking challeges
- Data isolation
Introducing Open vSwitch
- What it is, and its features
- Why it is important in a virtualized environment
Openflow
- Basics of Openflow
- How flows are routed in XenServer & XCP
Openstack Networking Internals - Advanced Part
The pictures of the VNI were taken with the "Show my network state" tool
https://sites.google.com/site/showmynetworkstate/
2014 OpenStack Summit - Neutron OVS to LinuxBridge MigrationJames Denton
Presentation titled 'Migrating production workloads from OVS to LinuxBridge'. Presented at the Fall 2014 OpenStack summit in Paris, this slide deck introduced the possibility of migrating live workloads from Open vSwitch to LinuxBridge with minimal downtime.
This is my latest OpenStack Networking presentation. I presented it at OSDC 2014. It includes a lot of backup slides with CLI outputs that show how ML2 with the OVS agent creates GRE based overlay networks and logical routers
The new virtualization technologies and cloud environments are a big challenge for testing network performance. We need a new approach for testing, using realistic scenarios and flexible tools that allow us to generate packets at high speed. Trex is an Open Source network generator with all these batteries included.
This presentation for a talk at the Linux Tag 2014 has a couple of new Slides compared to earlier presentations that explain some different networking models like Flat, VLAN based, 'SDN Fabric based', etc.
Openstack Networking Internals - first partlilliput12
Openstack Networking Internals - first part
Description of the Virtual Network Infrastructure inside an OpenStack cluster
The pictures of the VNI were taken with the "Show my network state" tool
https://sites.google.com/site/showmynetworkstate/
Docker networking basics & coupling with Software Defined NetworksAdrien Blind
This presentation reminds Docker networking, exposes Software Defined Network basic paradigms, and then proposes a mixed-up implementation taking benefits of a coupled use of these two technologies. Implementation model proposed could be a good starting point to create multi-tenant PaaS platforms.
As a bonus, OpenStack Neutron internal design is presented.
You can also have a look on our previous presentation related to enterprise patterns for Docker:
http://fr.slideshare.net/ArnaudMAZIN/docker-meetup-paris-enterprise-docker
Open vSwitch - Stateful Connection Tracking & Stateful NATThomas Graf
Update on status of connection tracking and stateful NAT addition to the Linux kernel datapath. Followed by a discussion on the topic to collect ideas and come up with next steps.
DevOops - Lessons Learned from an OpenStack Network ArchitectJames Denton
Join as we discuss various OpenStack Neutron network configuration options and issues experienced with VLAN, VXLAN, L2population, multicast, Neutron routers, Open vSwitch and more.
As more businesses explore the benefits of cloud computing, network managers will have to increasingly meet the challenges of redesigning their networks for the cloud. This talk will introduce the basic concepts of Open vSwitch & Openflow and show how these technologies can help satisfy these needs. We will also explain how Open vSwitch fits into XCP and XenServer and routing of dataflows.
First part of talk discussing the networking challenges that cloud implementers face.
- Networking challeges
- Data isolation
Introducing Open vSwitch
- What it is, and its features
- Why it is important in a virtualized environment
Openflow
- Basics of Openflow
- How flows are routed in XenServer & XCP
* OpenDaylight의 High Availability 기능 분석
** High Availability in OpenDaylight
** Raft Algorithm
** 2-Node Clustering
** Clustering Scenario
** Summary
** Reference
NFV VNF Architecture 특징을 설명
[목차]
Overview of VNF in the NFV Architecture
VNF Design Patterns and Properties
VNF States and Transitions
VNF Fault Management Overview
Functional Requirements on Management and Orchestration
Functional Requirements on Infrastructure
VNF Architecture Design Examples
#Annex A (Informative): Relationship to SDN
Tech Talk: ONOS- A Distributed SDN Network Operating Systemnvirters
This event takes us to the cusp of Distributed Software Development and SDN Controllers. We will be hosting Madan and Brian who have been involved in the architecture and development of ONOS (Open Network Operating System).
Synopsis
ONOS is a distributed SDN network operating system architected to provide performance, scale-out, resiliency, and well-defined northbound and southbound abstractions. Madan and Brian, both from ON.Lab, will start the talk with a deep-dive into ONOS architecture, including the key technical challenges that were solved to build this platform. They will also walk us through a live demo of building a SDN application on ONOS.
Details:
ONOS Architecture
ONOS Abstractions and Modularity
ONOS Distributed architecture
ONOS APIs and their usage
Live demo- Building a SDN app on ONOS
Speaker Bios
Madan Jampani, Distributed Systems Architect, ONOS
Madan is Distributed Systems Architect at ON.Lab focusing on the core distributed systems problems for ONOS. Prior to joining ON.Lab in Sep 2014, Madan worked at Amazon for around 10 years. At Amazon, Madan was instrumental in building several key technologies ranging from Amazon retail ordering systems, distributed data stores and shared compute clusters for running large-scale data processing and machine learning workloads.
Brian O’Connor, Lead Developer, ONOS
Brian is the ONOS Application Intent Framework lead and a core developer at ON.Lab, working on ONOS and Mininet. Brian O’Connor received Bachelor’s and Master’s degrees in Computer Science from Stanford University. At Stanford, he helped develop “An Introduction to Computer Networking,” one of Stanford’s first MOOCs (Massively Open Online Courses).
ABOUT ON.LAB and ONOS
Open Networking Lab (ON.Lab) is a non-profit organization founded by SDN inventors and leaders from Stanford University and UC Berkeley to foster an open source community for developing tools and platforms to realize the full potential of SDN. ON.Lab brings innovative ideas from leading edge research and delivers high quality open source platforms on which members of its ecosystem and the industry can build real products and solutions.
ONOS, a SDN network operating system for service provider and mission critical networks, was open sourced on Dec 5th, 2014. ONOS delivers a highly available, scalable SDN control plane featuring northbound and southbound abstractions and interfaces for a diversity of management, control, service applications and network devices. ONOS ecosystem comprises of ON.Lab, organizations who are funding and contributing to the ONOS initiative including AT&T, NTT Communications, SK Telecom, Ciena, Cisco, Ericsson, Fujitsu, Huawei, Intel, NEC; members who are collaborating and contributing to ONOS include ONF, Infoblox, SRI, Internet2, Happiest Minds, CNIT, Black Duck, Create-Net and the broader ONOS community. Learn how you can get involved with ONOS at onosproject.org.
Overview of OpenStack nova-networking evolution towards Neutron. Architecture overview of OVS plugin, ML2, and MidoNet Overlay product. Overview and example of Heat templates, along with automation of physical switches using Cumulus
Enterprise Datacenter Virtualization und Cloud Computing stellen neue Anforderungen an das Netzwerk. Traditionsgemäss wurden virtuelle Workloads über als Bridge fungierende virtuelle Switches mit VLANs auf dem physischen Netzwerk verbunden. Mit dem Wachstum der Anfordungen an Skalierung und Automatisierung stossen diese Modelle an Grenzen.
Thomas Graf bot an diesem OpenTuesday einen Einblick in Protokolle und Technologien wie OpenFlow, VXLAN, OpenStack Neutron und Open vSwitch, die eingesetzt werden, um neue automatisierte Netzwerkkonzepte der nächsten Generation, wie Software Defined Networking oder Network Function Virtualization, umzusetzen.
As containers are being deployed as part of multi tenant clusters, virtual multi layer switches become essential to interconnect containers while providing isolation guarantees. Assigning tenants their own private networks requires stateful network address translation (NAT) implemented in a scalable architecture to expose containers to public networks. Existing virtual switches integrated into the Linux kernel did not support stateful NAT so far. This presentation introduces a new virtual NAT service deployable as container built using existing kernel functionality such as network namespaces, routing rules and Netfilter to provide NAT services to existing virtual switches such as Open vSwitch and the Linux bridge but also the core L3 layer of Linux.
BKK16-409 VOSY Switch Port to ARMv8 Platforms and ODP IntegrationLinaro
Virtual Open Systems has developed VOSYSwitch, a high-performance user space networking virtual switch solution enabling NFV, based on the open source packet processing framework SnabbSwitch. In this talk, the experience of porting VOSYSwitch from x86 to ARMv8 will be shared, along with the integration of ODP as a driver layer for the available hardware resources. In addition to this presentation, a live demonstration will showcase chained VNFs connected through VOSYSwitch, where an OpenFastPath web server is implemented behind an ODP enabled packet filtering firewall. The targeted platforms are Freescale (NXP) LS2085A and Cavium's ThunderX.
Quantum - Virtual networks for Openstacksalv_orlando
An overview of Quantum, the soon-to-be default Openstack network service.
These slides introduce Quantum, its design goals, and discusses the API. It also tries to address how quantum relates to Software Defined Networking (SDN)
OpenVNet can be thought of as a network hypervisor. It allows the creation of fully virtualized networks using OpenFlow. During this presentation, we briefly explained the concept of virtual networking. Afterwards we showed a live demo where OpenVNet was used to join two IaaS cloud systems (Wakame-vdc and Amazon EC2) in a single L2 network.
Similar to Tech Talk by Ben Pfaff: Open vSwitch - Part 2 (20)
Tech Talk by Gal Sagie: Kuryr - Connecting containers networking to OpenStack...nvirters
These are slides from the Tech Talk at http://www.meetup.com/openvswitch/events/226518209/
Synopsis
Kuryr is a new project under Neutron's big tent that makes Neutron networking available to Docker containers by means of a Docker plugin.
In this session Gal will introduce Kuryr and show how it provides networking for containers in plain Docker environments and in mixed Docker, OpenStack environments. He will also present Kuryr's roadmap and integration with networking models in other orchestration engines like Kubernetes and Docker
About Gal Sagie
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Tech Talk by Peng Li: Open Mobile Networks with NFVnvirters
Synopsis
Applications are moving to mobile. This talk is about upcoming future of the mobile networks, key technology enabler and how to build your application and service on top of next generation mobile networks. Peng will describe the mobile network trend and why openness will play a critical role going forward. He will also present example of the NFV enabled mobile network architecture, its building blocks and use cases, and introduce Huawei's Open Mobile Foundry platform as a real world example to share some of our valuable experiences in this field with all. This talk will cover both flavors of open source projects (OPNFV, OpenStack, ONOS and ODL) as well as commercial products (Huawei's cloudEdge solution).
About Peng Li
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Tech Talk by Louis Fourie: SFC: technology, trend and implementationnvirters
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Synopsis
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This will be a hands on workshop. VM Images for Virtual Box will be provided. Attendees are expected to bring their laptops loaded with Virtual Box.
About Vikram Dham
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He has used SDN technologies for building software related to traffic engineering, security and routing. In the past, he was the Principal Engineer at Slingbox where he architected & built the distributed networking software for peer to peer connectivity of millions of end points. He holds MS degree in EE with a specialization in Computer Networks from Virginia Tech and has worked on research projects with companies like ECI Telecom, Raytheon and Avaya Research Labs.
This hands on workshop for OpenContrail will be led by Sreelakshmi Sarva & Aniket Daptari.
This is a labs session so we will have hard RSVP limits. Please RSVP only if you are confident that you will be able to attend.
About Sreelakshmi Sarva
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About Aniket Daptari
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Course Abstract
This session will be the first of a series of OpenContrail hands-on tutorials for developers who want to get deep into OpenContrail code.
This “Basic OpenContrail Programming” Hands-on Session will focus on making developers proficient in writing and contributing code for our OpenContrail Project.
Session will cover the following areas
1) Contrail Overview
· Use Cases
· Architecture recap
2) Contrail Hands on
· Demo + Hands on - Configuration , VN, VM, Network Policies etc
· DevStack introduction
RouteFlow & IXPs
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About Raphael Vincent Rosa
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Tech Talk by John Casey (CTO) CPLANE_NETWORKS : High Performance OpenStack Ne...nvirters
OpenStack is HOT! No doubt about it. A recent survey by The New Stack and The Linux Foundation shows OpenStack as the most popular open source project ahead of other hot projects like Docker and KVM. OpenStack is now taking its rightful place as the open source cloud solution for enterprises and service providers.
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In this session John Casey will cover the basics of DVN and explain how CPLANE NETWORKS achieves "at scale" network performance within and across data centers.
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Extending SDN & NFV to WAN
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About Tim Van Herck
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More info @ http://meetup.com/openvswitch
Follow us on twitter @nvirters
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https://arxiv.org/abs/2306.08302
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Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
2. What is Open vSwitch?
Semi-official description:
Open vSwitch is a production quality, multilayer virtual switch
licensed under the open source Apache 2.0 license. It is
designed to enable massive network automation through
programmatic extension, while still supporting standard
management interfaces and protocols (e.g. NetFlow, sFlow,
SPAN, RSPAN, CLI, LACP, 802.1ag).
The exciting parts:
● Write a program to control your network.
● Fast!
● Portable: OSes, hypervisors, CMSes, ...
3. Open vSwitch Hall
of Fame:
New Inductees
Alex Wang
Alexandru Copot
Alin Serdean
Andy Zhou
Ankur Sharma
Daniele Di Proietto
Flavio Leitner
Helmut Schaa
Jean Tourrilhes
Lorand Jakab
Nithin Raju
Pavithra Ramesh
Ryan Wilson
Thomas Graf
YAMAMOTO Takashi
Contributors with 10
or more commits
now (but not in
March 2013)
4.
5. New Features
● Six major releases: v1.10 through v2.3.
● OpenFlow 1.1, 1.2, 1.3, some 1.4, prototypes for 1.5
● Tunnels: VXLAN, LISP, Geneve
● MPLS
● Multicast snooping
● RSTP
● TCP flags matching
9. ● 99% of traffic is not a problem:
– Small number of long flows
– Large number of medium-length flows.
● Tuning solves some problems.
● Real problem is large numbers of short flows:
– Port scans
– Peer-to-peer rendezvous servers
– Distributed systems
– Network monitoring applications
Performance, circa OVS 1.9
10. Megaflows (OVS v1.11)
● Most of the time the whole microflow doesn't
matter, e.g. MAC learning
● Push classifier into kernel
● Hard part: userspace generates megaflows
● Exact-match cache layer
12. DPDK/netmap/PF_RING/...
● What are they?
● How do they help?
– Fast and clever.
– No baggage.
– No ring transition.
● OVS v2.4 will support DPDK
– Basic work was simple
– Preliminary numbers are very good
13. Performance: Fairness
● Which flows get dropped?
– Random is bad.
– Per-tenant fairness is better.
● Per-port fairness (OVS v1.11).
● Per-destination fairness: no plans.
14. OVS 2014 Fall Conference
● Nov. 17 and 18 at VMware in Palo Alto
● Soliciting talks now until Oct. 6
– User, dev, admin, research talks all welcome
● Sign up to attend now
● More information:
– Follow link from openvswitch.org
● Free!
