Scaling EVPN Multi-Site Overlays using Route-Servers

Cisco’s EVPN Multi-Site it’s a great technology that allows us to achieve massive scale of an EVPN network. With the latest release, the official scalability numbers give us something in the realm of over 12000 VTEPs (512 VTEPs per site x 25 sites).
I’m in no way suggesting that you would need such a big topology and you definitely should segment way sooner you reach the limit, but still…

The main configuration requirement for the Multi-Site overlay is to have a full mesh of eBGP peering between all border gateways.

This has scalability drawbacks as usual. Not only each leaf will have ever growing number of peers which will soon grow out of control, but maybe, worse is the fact that after one site is added, every other site must be touched too.

To avoid a full mesh, for iBGP topologies we would be using a Route Reflector, but with eBGP that’s obviously not an option. So, instead of a RR they way to scale eBGP peerings is to leverage a Route-Server.

A Route-Server provides route reflection capabilities and as such it must ensure that NLRIs attributes like the Next Hop and route-targets aren’t changed.
In Cisco’s EVPN implementation, the Continue reading

VMware, Dell add heft to on-prem cloud service

Aiming to help customers handle growing on-premises workloads, VMware and Dell EMC have bolstered their co-developed cloud software.First introduced in 2018, VMware Cloud on Dell EMC is intended to help enterpise customers move on-premises infrastructure and workloads to the cloud. Version 2.0 of VMware Cloud on Dell EMC bri-gs improved support for high-density and high-performance data-center applications. [Get regularly scheduled insights by signing up for Network World newsletters.] VMware Cloud on Dell EMC consists of VMware’s high-performance compute, storage and networking software, powered by VMware vSphere, vSAN and NSX, tightly integrated with Dell EMC VxRail hyperconverged infrastructure (HCI) hardware, and delivered as a service all –  managed by VMware.To read this article in full, please click here

The Hedge Episode 36: Rich Alderson and the Living Computer History Museum

The Living Computers History Museum and Labs was founding by Paul Allen to collect early computer systems and keep the constrained resource coding practices used on these systems alive. Over time it has developed into a living museum and lab, with hands-on access to some of the earliest examples of computing history. Rich Alderson joins us for this episode of the Hedge to describe the museum and its exhibits.

download

Central African Peering Forum: A Defining Moment for Peering and Interconnection

The first-ever Central African Peering Forum comes at a defining moment for Internet peering and interconnection. In the midst of the COVID-19 pandemic, countries have implemented measures to restrict people from moving from their homes, while only allowing essential movements and services.

But life cannot stop.

Kids still need to study and attend school. People still need to access financial services, conduct personal and business transactions, access government services, pay their taxes, and access health services. Most importantly, people need to access accurate and timely information. But now these services must be provided at a larger scale – via reliable Internet infrastructure. Moreover, some of this content and these services do not exist in digital format. They need to be created, sometimes in the language of local communities.

COVID-19 has uncovered gaps, missing elements, and key challenges, which need to be addressed so that life can smoothly transition to the new normal. Failing to address these challenges may result in severe socioeconomic consequences.

We are now a few months down the path since lockdown measures have been implemented in most countries. It is time to reflect on the lessons learnt so far, with respect to the reliability of the Internet Continue reading

Creating the best Linux Development experience on Windows & WSL 2

We are really excited to have had Docker Desktop be featured in a breakout session titled “The Journey to One .NET” at MSFT Build by @Scott Hanselman  with WSL 2. Earlier in the his  keynote, we learned about the great new enhancements for GPU support for WSL 2 and we want to hear from our community about your interest in adding this functionality to Docker Desktop. If you are eager to see GPU support come to Docker Desktop, please let us know by voting up our roadmap item and feel free to raise any new requests here as well.

With this announcement, the launch of the Windows 2004 release imminently and Docker Desktop v2.3.02 reaching WSL2 GA , we thought this would be a good time to reflect on how we got to where we are today with WSL 2.

April 2019

Casting our minds back to 2019 (a very different time!), we first discussed WSL 2 with Microsoft in April. We were excited to get started and wanted to find a way to get a build as soon as possible.

May 2019

It turned out the easiest way to do this was to collect a laptop Continue reading

Day Two Cloud 049: The Gritty Details Of Designing And Running A Private Cloud

On today's Day Two Cloud we tackle the practical aspects of private cloud, including designing the infrastructure and creating policies before you start racking gear, and why thinking about services is critical. Our guest is Brett Johnson, a Senior Consultant at VMware.

The post Day Two Cloud 049: The Gritty Details Of Designing And Running A Private Cloud appeared first on Packet Pushers.

The Latest Modern Innovation in Architecture

Architecture is constantly changing. New materials and ideas, as well as the needs of clients, drive new innovation in architecture. The latest innovation in architecture is that there are no defining standards, allowing for a wide variety of different styles and designs.

Modern architecture places emphasis on horizontal and vertical lines, as well as 90-degree angles. Modern architecture depends a great deal on sculpture forms, smooth surfaces, circular voids, and overhead shading systems.

Innovations in architecture include such features as large horizontal windows and ample natural light, as well as outdoors entertainment areas.

Architecture Innovations for Those on a Budget

In the last few years, one of the biggest innovations in architecture is the designing of tiny houses for those on a budget. These tiny homes need to be well thought out and the innovation comes in when architects have to come up with innovative ways to fit everything that normal homes have in a small space often no larger than a small bedroom.

Some of the innovations in this include such things as built in storage solutions and multifunctional furniture to make the most of the limited living space.

Another architecture innovation is the turning shipping containers into cute Continue reading

Using Technology In Disaster Response

Have you ever wondered how emergency communications get re-established after major disasters? Who are the people who rush in to enable first responders to do their jobs efficiently in the most trying of circumstances. In this episode we talk with Dustin Li and Andrew White of ITDRC (Information Technology Disaster Resource Center) to find out exactly what it takes to use technology in disaster response and why it is so important.

You can learn more about what ITDRC is doing as well as help out the cause at the following locations:

Dustin Li
Guest
Andrew White
Guest
Tony Efantis
Host
Jordan Martin
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Using Technology In Disaster Response appeared first on Network Collective.

Feedback: Data Center for Networking Engineers

When I started designing Data Center Infrastructure for Networking Engineers webinar I wanted to create something that would allow someone fluent in networking but not in adjacent fields like servers or storage to grasp the fundamentals of data center technologies, from server virtualization and containers to data center fabrics and storage protocols.

Here’s what a network architect said about the webinar:

Read more …

Nvidia unleashes new generation of GPU hardware

Nvidia, whose heritage lies in making chips for gamers, has announced its first new GPU architecture in three years, and it’s clearly designed to efficiently support the various computing needs of artificial intelligence and machine learning.The architecture, called Ampere, and its first iteration, the A100 processor, supplant the performance of Nvidia’s current Volta architecture, whose V100 chip was in 94 of the top 500 supercomputers last November. The A100 has an incredible 54 billion transistors, 2.5 times as many as the V100.10 of the world's fastest supercomputers Tensor performance, so vital in AI and machine learning, has been significantly improved. FP16 floating point calculations are almost 2.5x as fast as V100 and Nvidia introduced a new math mode called TF32. Nvidia claims TF32 can provide up to 10-fold speedups compared to single-precision floating-point math on Volta GPUs.To read this article in full, please click here

Mutable References To ‘self’ In Rust’s Object Methods

Lately I’ve been working on graphics programming in Rust, as a continuation of my first steps with the language. As part of this work, I created a type I created called Vec3f, to hold cartesian coordinates for a given vector: #[derive(Copy, Clone, Debug)] struct Vec3f { x: f32, y: f32, z: f32 } In the natural course of this work, I needed to add certain methods for this type to allow me to perform calculations like cross product, and dot/scalar product.

Securing work-at-home apps

In today's post, I answer the following question:
Our customer's employees are now using our corporate application while working from home. They are concerned about security, protecting their trade secrets. What security feature can we add for these customers?
The tl;dr answer is this: don't add gimmicky features, but instead, take this opportunity to do security things you should already be doing, starting with a "vulnerability disclosure program" or "vuln program".


Gimmicks

First of all, I'd like to discourage you from adding security gimmicks to your product. You are no more likely to come up with an exciting new security feature on your own as you are a miracle cure for the covid. Your sales and marketing people may get excited about the feature, and they may get the customer excited about it too, but the excitement won't last.

Eventually, the customer's IT and cybersecurity teams will be brought in. They'll quickly identify your gimmick as snake oil, and you'll have made an enemy of them. They are already involved in securing the server side, the work-at-home desktop, the VPN, and all the other network essentials. You don't want them as your enemy, you want them as your friend. You Continue reading

Full Stack Journey 042: How An IT Specialist Chooses Adjacent Competencies

David Klee is a SQL database expert, but he's also knowledgeable about virtualization, networking, and infrastructure. In today's Full Stack Journey podcast, host Scott Lowe talks with David about how and why IT specialists should be competent in other disciplines, how to decide which areas to branch out into, and how adjacent competencies enrich can enrich your specialization.

Full Stack Journey 042: How An IT Specialist Chooses Adjacent Competencies

David Klee is a SQL database expert, but he's also knowledgeable about virtualization, networking, and infrastructure. In today's Full Stack Journey podcast, host Scott Lowe talks with David about how and why IT specialists should be competent in other disciplines, how to decide which areas to branch out into, and how adjacent competencies enrich can enrich your specialization.

The post Full Stack Journey 042: How An IT Specialist Chooses Adjacent Competencies appeared first on Packet Pushers.

Juniper’s big push: AI in all areas of enterprise networking

Juniper intends to spread the gospel of artificial intelligence across enterprise networking in the coming months with new products and services.The expected moves are a continuation of a strategy that has been an integral part of Juniper since the company bought wireless and artificial-intelligence software maker Mist in 2019 for $405 million.[Get regularly scheduled insights by signing up for Network World newsletters.] Mist’s cloud-based Wi-Fi Assurance system includes an AI-base engine called Marvis that features dynamic packet capture and machine learning to automatically identify, adapt to and fix network issues.To read this article in full, please click here

1 … 911 912 913 914 915 … 3,797