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Arrcus Brings Network Automation and API Accessibility to the Edge

Arrcus, a well-funded edge network software startup that is working to make a name for itself in the expanding multicloud arena. But even as enterprise adoption of multicloud and hybrid cloud strategies continues to rise, he sees the future being at the network and compute edge. “Everybody talks about how you can get benefits from large pools of centralized capacity in the public cloud,” said Ayyar, whose was announced as chairman and CEO on Sept. 15. “What I feel very, very confident about is that this action is almost passé in terms of the clouds, and it’s moving a lot more into the edge. The pendulum is swinging from consolidated and large data centers doing everything to highly distributed and disaggregated infrastructures doing things that are point of consumption, point of sale, Continue reading

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Network Break 351: Juniper’s Wired Campus Fabric Challenges Cisco; More Azure Holes Revealed

Today's Network Break podcast discusses Juniper's new wired campus effort and how it leverages Mist Cloud for to help automate its campus fabric, a new set of Azure vulnerabilities, robust SD-WAN growth with the biggest players reaping most of the rewards, free space optics for hard-to-wire regions, and more tech news.

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Network Break 351: Juniper’s Wired Campus Fabric Challenges Cisco; More Azure Holes Revealed

Today's Network Break podcast discusses Juniper's new wired campus effort and how it leverages Mist Cloud for to help automate its campus fabric, a new set of Azure vulnerabilities, robust SD-WAN growth with the biggest players reaping most of the rewards, free space optics for hard-to-wire regions, and more tech news.

The post Network Break 351: Juniper’s Wired Campus Fabric Challenges Cisco; More Azure Holes Revealed appeared first on Packet Pushers.

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Despite Disruptions, Oil and Gas HPC Market Steadfast

The last several years have been challenging for the oil and gas industry on nearly all fronts. …

Despite Disruptions, Oil and Gas HPC Market Steadfast was written by Nicole Hemsoth at The Next Platform.

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Where China’s Long Road To Datacenter Compute Independence Leads

While we are big fans of laissez faire capitalism like that of the United States and sometimes Europe — right up to the point where monopolies naturally form and therefore competition essentially stops, and thus monopolists need to be regulated in some fashion to promote the common good as well as their own profits — we also see the benefits that accrue from a command economy like that which China has built over the past four decades. …

Where China’s Long Road To Datacenter Compute Independence Leads was written by Timothy Prickett Morgan at The Next Platform.

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RISC-V Upstart Targets ML Inference Performance, Power Efficiency

There is a growing number of vendors big and small going hard to the hoop to make processors for artificial intelligence workloads. …

RISC-V Upstart Targets ML Inference Performance, Power Efficiency was written by Jeffrey Burt at The Next Platform.

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Containernet

Containernet is a fork of the Mininet network emulator that uses Docker containers as hosts in emulated network topologies.

Multipass describes how build a Mininet testbed that provides real-time traffic visbility using sFlow-RT. This article adapts the testbed for Containernet.

multipass launch --name=containernet bionic
multipass exec containernet -- sudo apt update
multipass exec containernet -- sudo apt -y install ansible git aptitude default-jre
multipass exec containernet -- git clone https://github.com/containernet/containernet.git
multipass exec containernet -- sudo ansible-playbook -i "localhost," -c local containernet/ansible/install.yml
multipass exec containernet -- sudo /bin/sh -c "cd containernet; make develop"
multipass exec containernet -- wget https://inmon.com/products/sFlow-RT/sflow-rt.tar.gz
multipass exec containernet -- tar -xzf sflow-rt.tar.gz
multipass exec containernet -- ./sflow-rt/get-app.sh sflow-rt mininet-dashboard

Run the above commands in a terminal to create the Containernet virtual machine. 

multipass list

List the virtual machines

Name                    State             IPv4             Image
primary                 Stopped           --               Ubuntu 20.04 LTS
containernet            Running           192.168.64.12    Ubuntu 18.04 LTS
                                          172.17.0.1

Find the IP address of the mininet virtual machine we just created (192.168.64.12).

multipass exec containernet -- ./sflow-rt/start.sh

Start sFlow-RT. Use a web browser to connect to the VM and Continue reading

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How to customize your HTTP DDoS protection settings

We’re excited to announce the availability of the HTTP DDoS Managed Ruleset. This new feature allows Cloudflare customers to independently tailor their HTTP DDoS protection settings. Whether you’re on the Free plan or the Enterprise plan, you can now tweak and optimize the settings directly from within the Cloudflare dashboard or via API.

We expect that in most cases, Cloudflare customers won't need to customize any settings. Our mission is to make DDoS disruptions a thing of the past, with no customer overhead. To achieve this mission we’re constantly investing in our automated detection and mitigation systems. In some rare cases, there is a need to make some configuration changes, and so now, Cloudflare customers can customize those protection mechanisms independently. The next evolutionary step is to make those settings learn and auto-tune themselves for our customers, based on their unique traffic patterns. Zero-touch DDoS protection at scale.

Unmetered DDoS Protection

Back in 2017, we announced that we will never kick a customer off of our network because they face large attacks, even if they are not paying us at all (i.e., using the Free plan). Furthermore, we committed to never charge a customer for DDoS attack traffic Continue reading

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Imaging mounted disk volumes under duress

Imaging mounted disk volumes under duress

Backups are critical. If you are lucky and organised you have a set of useful backup primitives, such as Point in Time snapshots on your Infra

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The Impact of Today’s Hybrid IT Environment on NetOps Pros

The shift to hybrid work environments has put a premium on network visibility, connectivity, and agility.

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Supermicro updates one-socket server line

For the longest time, single-socket servers were the bottom of the server hierarchy, using "server" chips weaker than what you might find on a desktop. There were even servers that used the Atom processor. These were departmental servers doing the most menial of tasks, like file and print serving.But that's changing. Driven by high-core-count processors, and no doubt a desire to reduce costs, single-socket servers are getting some hefty workloads. AMD has led the way on this with its 32-core and 64-core EPYC processors that can do more with one chip than what a five-year-old dual-socket server can do. Dell has the servers available.To read this article in full, please click here

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Supermicro updates one-socket server line

For the longest time, single-socket servers were the bottom of the server hierarchy, using "server" chips weaker than what you might find on a desktop. There were even servers that used the Atom processor. These were departmental servers doing the most menial of tasks, like file and print serving.But that's changing. Driven by high-core-count processors, and no doubt a desire to reduce costs, single-socket servers are getting some hefty workloads. AMD has led the way on this with its 32-core and 64-core EPYC processors that can do more with one chip than what a five-year-old dual-socket server can do. Dell has the servers available.To read this article in full, please click here

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netlab Network Topology Graphs

A netlab user sent me an intriguing question: “Would it be possible to get network topology graphs out of the tool?”

I did something similar a long while ago for a simple network automation project (and numerous networking engineers built really interesting stuff while attending the Building Network Automation Solutions course), so it seemed like a no-brainer. As always, things aren’t as easy as they look.

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netsim-tools: Network Topology Graphs

Someone using my netsim-tools sent me an intriguing question: “Would it be possible to get network topology graphs out of the tool?”

I did something similar a long while ago for a simple network automation project (and numerous networking engineers built really interesting stuff while attending the Building Network Automation Solutions course), so it seemed like a no-brainer. As always, things aren’t as easy as they look.

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AWS Networking – Part III: VPC Verification Using AWS CLI

 

VPC Verification Using AWS CLI

We can verify our VPC configuration by using AWS CLI. Example 1-1 shows the output for command aws ec2 describe-vpc in JSON format. This command lists all our VPC resources with their properties. The first one is the newest VPC NVKT-VPC-01, and the second one is the default VPC which I have named DFLT-VPC. The first VPC gets ordinal zero [0], and the second VPC gets number one [1]. Note that ordinal numbers are not shown in the output. VPC properties describe the VPC-specific CIDR Block, DHCP Options, VPC Identifier, Owner Id, CIDR Block Association, and Tags.

 

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AWS Networking – Part II: Create VPC – AWS Console

The first thing to do when we create a VPC is to log in to the AWS console. Then we select the AWS Region where we want to launch our VPC. We are going to use VPC Region Europe (London) eu-west-2. As the last step, we give the name to VPC and associate a CIDR block 10.10.0.0/16 to it.

Figure 1-3: Virtual Private Cloud (VPC) – Example VPC.

Continue reading

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Project Myriagon: Cloudflare Passes 10,000 Connected Networks

During Speed Week, we’ve talked a lot about the products we’ve improved and the places we’ve expanded to. Today, we have a final exciting announcement: Cloudflare now connects with more than 10,000 other networks. Put another way, over 10,000 networks have direct on-ramps to the Cloudflare network.

This is the culmination of a special project we’ve been working on for the last few months dubbed Project Myriagon, a reference to the 10,000-sided polygon of the same name. In going about this project, we have learned a lot about the performance impact of adding more direct connections to our network — in one recent case, we saw a 90% reduction in median round-trip end-user latency.

But to really explain why this is such a big milestone, we first need to explain a bit about how the Internet works.

More roads leading to Rome

The Internet that all know and rely on is, on a basic level, an interconnected series of independently run local networks. Each network is defined as its own “autonomous system.” These networks are delineated numerically with Autonomous Systems Numbers, or ASNs. An ASN is like the Internet version of a zip code, a short number directly mapping Continue reading

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How to Innovate Your Online Social Network

It is true that social media platforms have grown by leaps and bounds in the past few years. Despite the growth these platforms also face continuous criticism.  It can however, not be ignored that in the coming years the social media platforms are said to improve more. These platforms are extremely unified when it comes to creating an impact. I’m the times of COVID these platforms have evolved thoroughly; people have considerably been attached, hooked more like glued to them for the entire time.

Social media platforms have not only evolved the business markets but it has also created an impact on how as a whole our society moves. It has done a great job in highlighting the evils of our society while it has also created a few negative affects which can not be ignored.  Following are the few ways through which one can improve their use of these platforms to support their growth.

Do Not Rely On a Single Platform

If we talk about growth one needs to understand that the trend keeps evolving when the social media marketing started the most sought after channel for promotions was Twitter, however later on Facebook also indulged in Continue reading

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Epidemic Modeling(DES)

Introduction

One of the things I have been trying to play recently with is Discrete Event Simulation(DES). I think it is a powerful tool for validating ideas. In this post, we will look at a toy epidemic model to simulate SIS/SIR models.

In Epidemic modeling, there are two classic models - SIS and SIR models. The models divide the population into different categories corresponding to different stages of the epidemic.

1. Susceptible(S): Susceptible individuals can contract the disease.
2. Infected(I): Infected individuals have already been contracted the disease.
3. Recovered(R): Recovered individuals are recovered from the disease and can not be infected again.

SIS Model

In case of SIS, the main assumption is that an infected person can get infected again after recovering. The state transition diagram looks like:

• $\beta$ is the probability of transitioning from Susceptible(S) to Infected(I)
• $\mu$ is the probability of transitioning from Infected(I) to Susceptible(S)

SIR Model

In case of SIR, the main assumption is that an infected person can not get infected again. The state transition diagram looks like:

• $\beta$ is the probability of transitioning from Susceptible(S) to Infected(I)
• $\mu$ is the probability of transitioning from Infected(I) to Recovered(R)

SIS Simulation

We will have a generic Simulation class Continue reading

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Cloudflare Pages is Lightning Fast

When we announced Cloudflare Pages in April, our goal wasn’t to bring just any web development tool to the table. As a front-end developer, it’s your responsibility to bring the ideas of your marketing, product and engineering teams to life by crafting a beautifully engaging experience for every customer. With all the hard work that goes into the development process — turning mock-ups to code, getting input from your team, staging and testing changes — you want the best performance possible for your site to showcase your work and optimize your customers’ experience.

Cloudflare Pages is the most secure and most scalable Jamstack platform to build and deploy your sites on the edge. But how is Pages so fast?

It comes down to three key reasons:

• Pages is built on one of the fastest networks in the world, putting us within 50 ms of 95% of the world’s Internet-connected population. Delivering Pages from this network is the basis of our speed.
• Cloudflare helps define and implement next generation standards, like QUIC + HTTP/3 and Early Hints, that push Pages performance to the next level.
• Pages has a killer developer experience that makes it easy to build the fastest websites on Continue reading