CloudKC: Evolution of Network Virtualization

This document introduces programmable virtual networks and discusses their advantages over traditional network slicing. It describes FlowVisor, an early network slicing tool, and its limitations in providing full network virtualization. The document then introduces OpenVirteX, a new system that aims to provide complete programmable virtual networks through topology, address, and policy virtualization. OpenVirteX maps virtual and physical network elements and allows independent control of virtual networks. While still in development, OpenVirteX has the potential to enable more flexible and innovative virtualized networks than previous solutions.

Nicolai van der Smagt has been in the business of designing, implementing and running SP networks for over 15 years. He has worked with DOCSIS, DSL and FTTH operators. Nowadays, Nicolai is helping Infradata’s pan-European customers build better access, aggregation and core networks, but his focus is on the data center, SDN, NFV and the whitebox switching revolution. His motto: “Simplicity is sophistication”. Topic of Presentation: SDN Language: English Abstract: Open source SDN that actually works -​today OpenContrail is an open source (Apache 2.0 licensed) project that provides network virtualization in the data center, using tried and tested open standards. It provides northbound APIs, integrates in Openstack or Cloudstack and is available today! In this slot we’ll show you the architecture and ideas behind the technology and how OpenContrail enables you to avoid the pitfalls that other (closed) SDN solutions bring. If time permits we’ll also demo the technology.

The document discusses NSX design and deployment considerations including: 1. Physical and logical infrastructure requirements for NSX including IP connectivity and MTU size. 2. Edge cluster design with options for collapsed or separated edge and infrastructure racks. 3. NSX manager and controller placement and sizing within management clusters. 4. Transport zone, VTEP, and VXLAN switching concepts which are fundamental to the NSX overlay architecture.

Midokura has made the source code for MidoNet freely available at www.midonet.org, delivering the truly open, vendor-agnostic network virtualization solution available for the OpenStack and the Docker community. About MidoNet Taking an overlay-based approach to network virtualization, MidoNet sits on top of any IP-connected network, and pushes the network intelligence to the edge of the network, in software. MidoNet makes it possible to build an IaaS cloud with fully virtualized and distributed scale-out L2-L4 networking. FOSDEM 2015 Presenters: Antonio Sagliocco, Alex Bikfalvi in Midokura Engineering

Technical Presentation about the MidoNet architecture and in-depth discussion about MidoNet features like Distributed Layer 2 Switching, Distributed Layer 3 Routing, Firewall, NAT and Distributed Flow State. About MidoNet Taking an overlay-based approach to network virtualization, MidoNet sits on top of any IP-connected network, and pushes the network intelligence to the edge of the network, in software. MidoNet makes it possible to build an IaaS cloud with fully virtualized and distributed scale-out L2-L4 networking. Presenter: Taku Fukushima, Midokura Engineering

The document discusses SDN market trends based on an SDxCentral report. It summarizes that the SDN, NFV, and network virtualization market is expected to exceed $105 billion by 2020 according to the report. It also provides details on SDN controllers, including major open source and commercial controllers. The rest of the document discusses use cases, selection criteria for controllers, and SDN adoption trends seen by the speaker.

This document discusses deploying VMware NSX Network Virtualization. It covers: 1. The objectives are to learn about NSX deployments with multiple hypervisors, NSX components required, and packet flows in logical networks. 2. The NSX architecture includes features like logical switching, routing, firewall, load balancing and VPN. Key components are the NSX controller, vSwitch, logical switches and NSX gateway. 3. Deploying NSX involves building the physical infrastructure, preparing NSX including the controller and manager, and then consuming applications through the network API.

VMworld 2013 Ben Basler, VMware Roberto Mari, VMware Learn more about VMworld and register at http://www.vmworld.com/index.jspa?src=socmed-vmworld-slideshare

Building a secure multi-tenant cloud necessitates proper tenant isolation and access control. Key network and security functions must scale independently based on the dynamic resource requirements across each tenant. Additionally, On-demand and self-service provisioning are required for achieving operational efficiencies. Robust, dynamic and elastic software abstractions are imperative to support applications built to run such complex environments. This slide deck covers: • Architectural design choices • Implementation blueprints • Operational best practices that have been made to build OpenStack cloud at Symantec.

Learn the production pros and cons of operating Neutron legacy and HA routers on compute nodes in your production cloud. Not ready for DVR or third-party network overhauls? Virtual router network “hot spots” got you down? Large virtual router failure domains keeping you up late at night? Neutron reference architectures not providing a scalable routing solution? If you answered yes to any of these questions then this talk is for you.

The document discusses software-defined networking (SDN) and OpenFlow, including: 1) OpenFlow allows the control logic to be separated from the forwarding hardware by defining an open interface between the two. This enables more flexible and programmable networks. 2) OpenFlow works by defining flows that match packets and actions that are applied to the matched packets. The flows are populated and managed by an external controller through the OpenFlow protocol. 3) OpenFlow is being deployed in over 100 organizations and is enabling network innovation through its programmable and customizable nature.

Midolman processes network packets in 3 stages: 1. The input stage receives packets from the datapath. 2. The packet processing stage simulates packet forwarding on the virtual topology, determines the egress port, and installs flows. 3. The output stage emits packets and installs flows based on the simulations.

The document discusses MidoNet, a network virtualization platform that provides a boost to OpenStack Neutron. MidoNet uses a distributed model to avoid single points of failure and bottlenecks seen in the OpenStack OVS plugin. It implements logical L2 and L3 switching, interconnectivity with physical networks, distributed firewalling, load balancing and tunneling using technologies like VxLAN and GRE. MidoNet aligns with Neutron APIs for integration into cloud management software.

This document discusses network and service virtualization technologies. It begins with an overview of challenges with current network architectures and how virtualization addresses them. It then covers three key trends: 1) network virtualization using SDN to program networks dynamically, 2) service virtualization using NFV to virtualize network functions, and 3) new infrastructure tools like Open vSwitch, OpenDaylight, and Docker networking. Finally, it discusses approaches to deploying network and service virtualization and provides a vendor landscape.

Description: Contrail Technology will be discussed covering architecture, capabilities and use cases. It will be followed by a demonstration on current Contrail implementation on CloudStack/Openstack. Parantap works as a Sr. Director of Solutions Engineering for Contrail Product within Juniper. Before Juniper, Parantap led the network architecture team for Microsoft Online Services (Windows Azure, MS Bing). Prior to Microsoft, Parantap worked as a core engineering manager for UUNet Technologies building Internet backbones.

This presentation will walk through the values and benefits of using service chaining technologies in OPNFV for service composition. The presentation will talk through and demonstrate, in real time, platform service chaining features and capabilities

The document provides an overview of the Juniper SDN landscape and Contrail solution. It begins with introducing the speaker and their background. It then discusses the need for SDN due to challenges in traditional networking. The current SDN landscape includes major players like Cisco, Juniper, VMware, OpenStack and smaller startups. Contrail is positioned as Juniper's SDN overlay solution that integrates with OpenStack and uses standard protocols like BGP, MPLS and XMPP to provide multi-tenancy, overlays, routing and gateway connectivity.

This document provides instructions for setting up a high availability MySQL cluster using Pacemaker, Corosync, and DRBD for storage replication. It outlines the steps to create a DRBD resource, set up Corosync for cluster communication, configure Pacemaker to manage resources and failover, and add a MySQL resource protected by the cluster. The goal is to demonstrate how to build a basic two-node active-active MySQL cluster for high availability using open source clustering tools.

This document discusses the scale-out storage solution Ceph. Ceph provides a distributed object store and file system that allows for scalable storage. It uses RADOS, which is a redundant, autonomic, distributed object store. Ceph has two main components - OSDs, which store data on disks, and MONs which monitor the cluster and maintain metadata. Ceph uses a technique called CRUSH to intelligently place data and replicas across the distributed system. It supports various use cases like virtualization, cloud storage, and large scale storage needs.

This document discusses the scale-out storage capabilities of Ceph. It explains that Ceph uses an object store model called RADOS to allow for scaling storage horizontally across commodity hardware. Ceph uses a technique called CRUSH to automatically replicate and distribute data across its object storage daemons and monitor daemons for redundancy and high availability as more nodes are added. It also describes how Ceph provides block storage, file system, and cloud storage interfaces to stored data through its RADOS Block Device, CephFS, and RADOS Gateway components.

Florian Haas, hastexo - heat, cloud-init and cloud-config: OpenStack Orchestration Deep Dive, OpenStack Israel 2015

This document provides an overview and agenda for a presentation on OpenStack networking. It begins with an overview of OpenStack architecture and services like Compute, Networking, Identity and Image services. It then discusses basic network components like controllers, compute nodes and networking plugins. Next, it covers networking process flows and dives deeper into the Neutron networking plugin, including the Modular Layer 2 plugin framework and drivers like Open vSwitch. It concludes with a planned demonstration of networking functionality in an OpenStack lab environment.

This was a tutorial which Mark McClain and I led at ONUG, Spring 2015. It was well received and serves as a walk through of OpenStack Neutron and it's features and usage.

This document provides an overview of the evolution of network virtualization and OpenStack networking. It describes how networking started with manually configured VLANs, moved to OpenFlow which required programming flows, and then to network overlays using software defined networking. It outlines the requirements for network virtualization. It also details the evolution of OpenStack networking from Nova network to Quantum/Neutron, including the transition to using overlays and supporting plugins. Key features of Neutron are summarized, as well as upcoming features planned for future OpenStack releases.

OpenStack Day in Korea 2015 -Track 3-6 Archiectural Overview of the Open Source Dan Mihai Dumitriu - Midokura

Presentation from OpenStack Summit Austin 2016. Video is available at https://www.youtube.com/watch?v=-1bWYvbUbLI

Opencontrail is network virtualisation software designed to enable virtual overlay networks in the datacenter.

VMworld 2013 Bruce Davie, VMware Learn more about VMworld and register at http://www.vmworld.com/index.jspa?src=socmed-vmworld-slideshare

Contrail provides software defined networking and virtual network capabilities for OpenStack clouds. Key components of Contrail include the Contrail controller, vRouters running on hypervisors, and integration with OpenStack using Neutron and Nova. Virtual networks in Contrail can be created which provide isolation between groups of virtual machines and connectivity to physical networks.

This document introduces software defined networking (SDN) and network functions virtualization (NFV) concepts. It discusses challenges with traditional networking and how SDN and NFV address these by decoupling the control and data planes, centralizing network intelligence, and abstracting the underlying network infrastructure. It then provides examples of open source SDN technologies like OpenDaylight, Open vSwitch, and OpenStack that can be used to build programmable software-defined networks and virtualized network functions.

This document introduces software defined networking (SDN) and network functions virtualization (NFV) concepts. It discusses challenges with traditional networking and how SDN and NFV address these by decoupling the control and data planes, making the network programmable through APIs, and virtualizing network functions. It then provides examples of open source SDN platforms like OpenDaylight, Open vSwitch, and OpenStack that enable building virtual networks and service chains.

This is the latest Update to my OpenStack Networking / Neutron 101 Slides with some more Information and caveats on the new DVR and Gateway HA Features

Software Defined Networking is seeing a lot of momentum these days. With server virtualization solving the virtual machines problem, and large scale object storage solving the distributed storage challenge, SDN is seen as key in virtual networking. In this talk we don't try to define SDN but rather dive straight into what in our opinion is the core enabled of SDN: the virtual switch OVS. OVS can help manage VLAN for guest network isolation, it can re-route any traffic at L2-L4 by keeping forwarding tables controlled by a remote controller (Openfow controller). We show these few OVS capabilities and highlight how they are used in CloudStack and Xen. Xen Summit presentation of CloudStack and Software Defined Networks. OpenVswitch is the default bridge in Xen and supported in XenServer and Xen Cloud Platform

Overview of OpenStack Networking and Open vSwitch presented at Cloud Tech Meetup #3 in Kharkiv, Ukraine on May 30th, 2013

Quantum is an OpenStack networking project that provides networking as a service between interfaces managed by other projects like Nova. It uses plugins to support different networking technologies and providers. Quantum provides advanced network topologies and tenant control over networking that was not possible with just Nova networking. The Grizzly release includes improvements to security groups, load balancing as a service, new plugins, and seamless upgrades from Folsom.

Quantum is an OpenStack networking project that provides networking as a service. It uses plugins to support various technologies like SDN, overlay tunneling, and fabric solutions. This allows tenants to create their own network topologies with control over addressing, segmentation, and services. Quantum provides APIs for networks, subnets, and ports that integrate with Nova to attach virtual network interfaces to instances.

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. To date OpenStack networking has not yet achieved the performance, scalability and reliability that many large enterprises demand. CPLANE NETWORKS solves that problem by delivering secure multi-tenant virtual networking that overcomes the limitations of the standard Neutron networking service. By making all networking services local to the compute node and achieving near line-rate throughput, CPLANE NETWORKS Dynamic Virtual Networks (DVN) delivers mega-scale networking for the most demanding application environments. 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. About John Casey John Casey has over 20 years of deep technology leadership. His proven success with a variety of technical leadership roles in Telecom, Enterprise and Government and in software design and development provide the foundation for the system architecture and engineering team. Previously John led worldwide deployment teams for both IBM’s Software Group and Narus, Inc. His work in large scale, high performance system design at Transarc Labs and Walker Interactive Systems brings leadership to the CPLANE NETWORKS product suite.

Analogous to server virtualization, Network Virtualization decouples and isolates virtual networks (i.e. tenant) from the underlying network hardware. One of the key value propositions of Software-Defined Networking (SDN) is to enable the provisioning and operation of virtual networks. This tutorial motivates the need for network virtualization, describes the high-level requirements, provides an overview of all architectural approaches, and gives you a clear picture of the vendor landscape. Previously presented at ONUG Fall 2013 and Spring 2014.

- The keynote at the OpenStack 2012 Fall Summit highlighted Rackspace's decreasing contribution to OpenStack commits over time and Rackspace's private cloud which runs OpenStack and sees high usage. - The Quantum project in OpenStack provides network connectivity as a service and allows different virtualization technologies to be plugged in as backends. It has evolved to add L3 and L4-L7 network services. - Quantum uses a plugin architecture so that different virtual network backends like Open vSwitch, Linux bridge can be used. Extensions allow for additional network properties and new services like routing, load balancing to be added.

This document provides an overview of enterprise networking solutions offered by ATC Solutions Engineering. It discusses their mission to deliver value through networking solution assessments and provide clarity for business technology decisions. It then lists and briefly describes various networking domains and solutions they consult on, such as data center networking, campus/branch networking, software-defined networking, and lab as a service.

VMUGIT Meeting a Napoli - 6 aprile 2016 NSX: La Virtualizzazione di Rete e il Futuro della Sicurezza Luca Morelli, VMware

Network virtualization allows sharing of physical network infrastructure between multiple virtual networks through abstraction and tunneling techniques. It provides benefits like increased infrastructure utilization, scalability, agility, and security. Common virtualization techniques include VLANs to divide switches into logical segments, DWDM to multiply fiber bandwidth, VRFs to partition routers, and tunneling protocols like GRE, VXLAN, and MPLS to encapsulate and transport traffic across physical networks. Overlay networks further abstract the physical underlay into virtual topologies to support multiple isolated tenant networks on shared infrastructure.