Lanner Joins Forces With Hot OCP Ecosystem
Networking manufacture Lanner, well known for its uCPE and white box appliances, is the latest...
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Huawei Accuses US of Cyberattacks, ‘Menacing’ Its Employees
Huawei accused the U.S. government of using cyberattacks and “every tool at its disposal” to...
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AT&T Asks to Play With Its mmWave 5G Spectrum
The carrier has asked the FCC for early access to the 24 GHz spectrum it won during a recent...
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2019 Chapterthon – Our Chapters, Connecting the World One Community at a Time
Each year, the Chapterthon project competition brings enthusiasm and excitement among our global community. We look forward to this time of year, when our communities mobilize and work alongside each other to achieve a common goal for the development of the Internet.
For the 2019 Chapterthon, we are delighted to announce that 34 Chapters and Special Interest Groups (SIGs) from across the globe have started implementing their work on local solutions that will bring some of the hardest-to-reach places and community segments online—connecting the unconnected.
Over the next two months, these 34 projects will:
- connect underprivileged and rural areas in Armenia, Bangladesh, Benin, Mali, and South Africa;
- build a community network in Kenya;
- establish online databases for rural farmers in Burkina Faso and Saint Vincent and the Grenadines;
- create an online audio library for people living with disabilities in northern rural Argentina;
- revolutionize a mobile network unit in Madagascar for use in the event of a natural disaster;
- educate and empower over fifty rural women on how to use the Internet during a friendly game of “Tag”;
- build an FM broadcast system in rural Ghana; preserve Indigenous culture in rural Brazil;
- sweat it out at a bootcamp in Continue reading
Tech Bytes: Applying Cloud Principles To Networking With Big Switch Networks (Sponsored)
Today's sponsored Tech Bytes explores how Big Switch Networks applies cloud design principles to data center and cloud networks. Network engineers can provide a developer-friendly environment while still enforcing policy, enabling security controls, and getting visibility into the network. Our guest is Big Switch CTO Paul Unbehagen.
The post Tech Bytes: Applying Cloud Principles To Networking With Big Switch Networks (Sponsored) appeared first on Packet Pushers.
Forwarding using sFlow-RT
- Without Forwarding Each sFlow agent is configured to stream sFlow telemetry to each of the analysis applications. This configuration is appropriate when a small number of applications is being used to continuously monitor performance. However, the overhead on the network and agents increases as additional analyzers are added. Often it is not possible to increase the number of analyzers since many embedded sFlow agents have limited resources and only support a small number of sFlow streams. In addition, the complexity of configuring each agent to add or remove an analysis application can be significant since agents may reside in Ethernet switches, routers, servers, hypervisors and applications on many different platforms from a variety of vendors.
- With Forwarding In this case all the agents are configured to send sFlow to a forwarding module which resends the data to the analysis applications. In this case analyzers can be added and removed simply by reconfiguring the forwarder without any changes required to the agent configurations.
Network Break 250: VMware Embraces Kubernetes; Dell Partners With VMware On Datacenters, SD-WAN
It's a heaping helping of Network Break as we try to parse all the Kubernetes pronouncements coming out of VMworld 2019, including Project Pacific and Tanzu Mission Control. Plus we cover new tech and new partnerships between Dell EMC and VMware, new products from Apstra and Mellanox, and HPE's latest financials.
The post Network Break 250: VMware Embraces Kubernetes; Dell Partners With VMware On Datacenters, SD-WAN appeared first on Packet Pushers.
If You Have to Simulate Your Whole Network, You’re Doing It Wrong
This blog post was initially sent to subscribers of my SDN and Network Automation mailing list. Subscribe here.
Have you ever seen a presentation in which a startup is telling you how awesome their product is because it allows you to simulate your whole network in a virtual environment? Not only that, you can use that capability to build a test suite and a full-blown CI/CD pipeline and test whether your network works every time you make a change to any one box in the network.
Sounds awesome, right? It’s also dead wrong. Let me explain why that’s the case.
Read more ...The TOGAF ADM – Part II
Continuing right off from my last post, we going to continue our run-though of the ADM wrapping the last few phases. Phase E: opportunities & Solution: Now, it’s time for us to review the outputs from our previous phases and to start defining the beginning of our implementation details. We do this in the form of creating the […]Just Published: NSX-T Technical Deep Dive Slide Deck
Last year when I was creating the first version of VMware NSX Deep Dive content, NSX-V was mainstream and NSX-T was the new kid on the block. A year later NSX-V is mostly sidelined, and all the development efforts are going into NSX-T. Time to adapt the webinar to new reality… taking the usual staged approach:
- The new slide deck covering NSX-V and NSX-T is ready. It includes early information about NSX-T release 2.5; I’ll fill in the details once the documentation becomes public.
- I’ll use the slide deck in day-long workshop in Zurich on September 10th.
- The live webinar sessions (including updated NSX-T 2.5 content) will start on November 14th.
Cumulus content roundup: Summer 2019
Summer has flown by and you may have missed some of the great content that was published. Don’t worry, you can catch up on some of our favorite podcasts, blog posts, and articles below. So settle in and then dive into all things open networking!
From Cumulus Networks:
Customizing your network: Take a quick look at the types of automation available in Linux, from basic to dynamic, and how these automation capabilities help to enable data center-wide orchestration here.
Kernel of Truth podcast: Network monitoring: When it comes to network monitoring, have you run into a “switch that cried wolf?”Kernel of Truth host Brian O’Sullivan is joined by two new guests to the podcast Justin Betz & Faye Ly to chat more about networking monitoring here.
Best practices: MLAG backup IP: We cover the best ways to build a redundant backup IP link for multi-chassis link aggregation (MLAG).
Exploring Batfish with Cumulus – part one: With Batfish supporting Cumulus Networks this year, we show how it can fit into pipelines & replace or complement existing testing strategies in part one of a two-part series.
Kernel of Truth podcast: Innovation in the data center: Spiderman aka Rama Continue reading
ClearOS Installation on QEMU
ClearOS is an operating system based on CentOS for use in small and medium enterprises as a network gateway and network server with a web-based administration interface.
ClearOS in Gateway mode acts as a firewall, gateway and server on a local network. The tutorial provides installation and configuration steps for deployement of ClearOS on QEMU VM. We will later connect ClearOS QEMU VM into GNS3 network topology in order to test features such as application traffic filtering and transparent proxy with user authentication.
Software Used:
Host OS: Kubuntu Linux 18.04.1 LTS with Qemu 3.0.0 installed and kvm-intel module loaded
Guest OS: ClearOS 7.5.0 x86_64
1. Preparing Host Network Infrastructure
As we are going to install ClearOS guest QEMU VM in a gateway mode, your host should have two network adapters available. (Picture 1). In our case, the first ClearOS guest network interface ens3 will be defined as LAN type during ClearOS installation. The second guest interface ens4 will be defined as External and used for connection to SOHO network. We will bridge the interface ens4 with the host interface enp4s0f2 using iproute utility. But first, we need to create tap interfaces tap0 and Continue reading
Juniper vQFX 18.4R1.8 Vagrant Libvirt Box Install
Build a Juniper vQFX 18.4R1.8 Vagrant box for use with the libvirt provider.Juniper vQFX 18.4R1.8 Vagrant Libvirt Box Install
In this post I will cover how to create a Juniper vQFX Vagrant box 18.4R1.8 for use with the vagrant-libvirt provider. This is an update to a previous post post . Thankfully Juniper has released newer versions of the vQFX vagrant boxes for the Virtual box provider that can be utilized to...Juniper vMX 19.1R1.6 Vagrant Libvirt Box Install
Build a Juniper vMX 19.1R1.6 Vagrant box for use with the libvirt provider.Juniper vMX 19.1R1.6 Vagrant Libvirt Box Install
In this post I will cover how to create a Juniper vMX 19.1R1.6 Vagrant box for use with the vagrant-libvirt provider. This post is an update to a previous post post that covers an earlier version. Prior to installing the vMX there are some required steps to get the KVM host prepped...Heavy Networking 468: Making The Business Case For SD-WAN
Building a business case for SD-WAN involves more than just anticipating savings by moving from private circuits to business broadband connections. On today's Heavy Networking, we look at how to tie SD-WAN capabilities to business benefits, what to consider when developing a business case, how measure ROI, and more with guest Jason Gintert.
The post Heavy Networking 468: Making The Business Case For SD-WAN appeared first on Packet Pushers.
