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.
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
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.
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
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
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.
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.
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.
aws ec2 describe-vpcs
{
"Vpcs": [
{
"CidrBlock": "10.10.0.0/16",
"DhcpOptionsId": "dopt-09217361",
"State": "available",
"VpcId": "vpc-04ef72cc79a73f82e",
"OwnerId": "123456654321",
"InstanceTenancy": "default",
"CidrBlockAssociationSet": [
{
"AssociationId": "vpc-cidr-assoc-0379c0e3e854f43ff",
"CidrBlock": "10.10.0.0/16",
"CidrBlockState": {
"State": "associated"
}
}
],
"IsDefault": false,
"Tags": [
{
"Key": "Name",
"Value": "NVKT-VPC-01"
}
]
},
{
"CidrBlock": "172.31.0.0/16",
"DhcpOptionsId": "dopt-09217361",
"State": "available",
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.
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.
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
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.
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
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.
In case of SIS, the main assumption is that an infected person can get infected again after recovering. The state transition diagram looks like:
Susceptible(S) to Infected(I)Infected(I) to Susceptible(S)In case of SIR, the main assumption is that an infected person can not get infected again. The state transition diagram looks like:
Susceptible(S) to Infected(I)Infected(I) to Recovered(R)We will have a generic Simulation class Continue reading
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:
In the year since Cloudflare’s launch of Workers Unbound, developers have unlocked the ability to run computationally intensive workloads on the Cloudflare edge network — like image processing, game logic, and other complex algorithms. With all that additional computing power comes a host of questions around performance. Our customers often ask us how they can profile or monitor their Workers to see where they spend the most CPU time, or to see whether their changes improve performance.
Here at Cloudflare, we not only want to build the fastest, most affordable, and most flexible compute platform at the edge; we also want to make the lives of our developers easier in building their applications. To do this, Cloudflare has begun to integrate with existing tools — places our developers feel comfortable and efficient in their day-to-day work. To help measure performance of our customers’ Workers, we’re beginning to integrate with the Chrome DevTools protocol. Just like you can use chrome://inspect to debug your Node backend, you can also use it to profile your Cloudflare Workers.
We’re starting off this integration with beta support for local CPU profiling, using Wrangler. To show off how to use this Continue reading
This week I tweeted something from a discussion we had during Networking Field Day that summed up my feelings about the state of documentation of application programming interfaces (APIs):
I laughed a bit as I wrote it because I’ve worked in department stores like Walmart in the past and I know the reasons why they tend to move things around. Comparing that to the way that APIs are documented is an interesting exercise in how people think about things like new capabilities and notification of changes.
In case you weren’t aware, everything in your average department store is carefully planned out. The things placed in the main aisles are decided on weeks in advance due to high traffic. The items placed at the ends of the aisles, or endcaps, are placed there to highlight high margin items or things that are popular enough to be sought out by customers. The makeup of the rest of the store is determined by a lot of metrics.
There are a Continue reading
There was a bit of a kerfuffle this week when it looked like AMD was changing its position a little bit on whether or not it would get back into designing and selling server chips based on the Arm architecture. …
Will AMD Get Back Into Arm Server Chips? was written by Timothy Prickett Morgan at The Next Platform.
At its core, Zero Trust is an operational framework that helps enterprises secure modern network environments. Zero Trust insists organizations strip away ambiguity from their security and focus on the basics: committing to a risk-based approach across end-users, networks, data, devices, and much more. If you’re ready to take the next step toward built-in, Zero Trust networking (ZTN), we can help. Learn how to successfully implement Zero Trust networking and segmentation strategies at one of our upcoming NSX Network Security Workshop Sessions on Tuesday, September 28, 2021 or on Wednesday, September 29, 2021.
During these live virtual events, Patricio Villar, Principal Network Architect and VMware Certified Expert/Network Virtualization, will cover Zero Trust foundational concepts, including:
NSX Network Security Workshop topics include:
If you’re ready to simplify Zero Trust so you can have simply zero worries, grab your spot and register today.
See you there!
The post How to Simplify Your Journey to Zero Trust with NSX Workshops appeared first on Network and Security Virtualization.
