Using Python and Pandas to look at Pandemic Data
The script and supporting files in this repository are intended to show how the Python Pandas module can be used to analyze data, specifically COVID-19 data. I am going to recommend 3 data sets to "investigate": WHO (Download from 06 April 2020) CSSEGISandData on GitHub New York Times US Data GitHub Repository Background WHO Data READ MORE
The post Using Python and Pandas to look at Pandemic Data appeared first on The Gratuitous Arp.
VMware Claims SD-WAN Dominance Over Cisco
More than 225,000 branch offices have deployed VMware’s SD-WAN, said VMware’s Tom Gillis....
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VMware Delivers NSX-T 3.0 with Innovations in Cloud, Security, Containers, and Operations
We are excited to announce the general availability of VMware NSX-T
3.0, a major release of our full stack Layer 2 to Layer 7 networking platform that offers virtual networking, security, load balancing, visibility, and analytics in a single platform. NSX-T 3.0 includes key innovations across cloud-scale networking, security, containers, and operations that help enterprises achieve one-click public cloud experience wherever their workloads are deployed. As enterprises adopt cloud, containers, and new applications, IT teams are managing more heterogenous and distributed environments that need to be secured, automated, and monitored. The need to run and manage workloads on all types of infrastructure, VMs, containers, bare metal across both private and public clouds, is greater than ever. Enterprises need end-to-end software-defined solutions to fully automate, connect, and protect all their workloads.
As a key component of VMware Virtual Cloud Network, VMware NSX-T 3.0 includes groundbreaking innovations that make it easier to replace legacy appliances that congest data center traffic, achieve stronger security posture, and run virtual Continue reading
HPE Readies $2B in Loan Relief for Enterprises
The company earlier this week, like many others, withdrew its previously issued financial guidance...
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How To Use 1.1.1.1 w/ WARP App And Cloudflare Gateway To Protect Your Phone From Security Threats
Cloudflare Gateway protects users and devices from security threats. You can now use Gateway inside the 1.1.1.1 w/ WARP app to secure your phone from malware, phishing and other security threats.
The 1.1.1.1 w/ WARP app has secured millions of mobile Internet connections. When installed, 1.1.1.1 w/ WARP encrypts the traffic leaving your device, giving you a more private browsing experience.
Starting today, you can get even more out of your 1.1.1.1 w/ WARP. By adding Cloudflare Gateway’s secure DNS filtering to the app, you can add a layer of security and block malicious domains flagged as phishing, command and control, or spam. This protection isn’t dependent on what network you’re connected to - it follows you everywhere you go.
You can read more about how Cloudflare Gateway builds on our 1.1.1.1 resolver to secure Internet connections in our announcement. Ready to get started bringing that security to your mobile device? Follow the steps below.
Download the 1.1.1.1 w/ WARP mobile app
If you don’t have the latest version of the 1.1.1.1 w/ WARP app go to the Apple Continue reading
RFC 1 Was Fifty One Years Ago
Has much changed since then ?
The post RFC 1 Was Fifty One Years Ago appeared first on EtherealMind.
Building BGP Route Reflector Configuration with Ansible/Jinja2
One of our subscribers sent me this email when trying to use ideas from Ansible for Networking Engineers webinar to build BGP route reflector configuration:
I’m currently discovering Ansible/Jinja2 and trying to create BGP route reflector configuration from Jinja2 template using Ansible playbook. As part of group_vars YAML file, I wish to list all route reflector clients IP address. When I have 50+ neighbors, the YAML file gets quite unreadable and it’s hard to see data model anymore.
Whenever you hit a roadblock like this one, you should start with the bigger picture and maybe redefine the problem.
Why use Typha in your Calico Kubernetes Deployments?
Calico is an open source networking and network security solution for containers, virtual machines, and native host-based workloads. Calico supports a broad range of platforms including Kubernetes, OpenShift, Docker EE, OpenStack, and bare metal. In this blog, we will focus on Kubernetes pod networking and network security using Calico.
Calico uses etcd as the back-end datastore. When you run Calico on Kubernetes, you can use the same etcd datastore through the Kubernetes API server. This is called a Kubernetes backed datastore (KDD) in Calico. The following diagram shows a block-level architecture of Calico.
Calico-node runs as a Daemonset, and has a fair amount of interaction with the Kubernetes API server. It’s easy for you to profile that by simply enabling audit logs for calico-node. For example, in my kubeadm cluster, I used the following audit configuration
To set the context, this is my cluster configuration.
As we are running Typha already, let us profile the API calls for both Calico and Typha components. I used the following commands to extract the unique API calls for each.
If you ignore the license key API calls from calico-node, you will see that the API calls Continue reading
Juniper QFX10K IPFIX Gotchas
IPFIX is problematic on the Juniper QFX10K switches. Documentation is sparse, and doesn’t have a complete configuration. Behavior changes between versions in undocumented ways. Here’s a couple of things I noticed when upgrading from Junos 17.3 to 17.4. These also apply if you are running 18.4 code. I hit more problems with 18.4, and ended up rolling back to 17.4.
Big Changes in Reported Throughput
Here’s a graph showing total reported throughput for a QFX10K I upgraded:
There’s a few things going on there. First the reported traffic drops to zero after I upgraded. Then it starts coming up, after I fixed the first problem. But then after that the reported traffic is flat, and lower than it should be. Then it starts coming up again after I made the second fix.
First Problem: Chassis Sample Instance
The first configuration change I needed to add was this: set chassis fpc 0 sampling-instance sample-border, where sample-border is the name of the sampling instance I have configured under forwarding-options. This was not required with 17.3. If you don’t do it with 17.4, you won’t get any data.
Second Problem: DDoS-Protection
Some Juniper platforms implement Continue reading
Juniper QFX10K IPFIX Gotchas
IPFIX is problematic on the Juniper QFX10K switches. Documentation is sparse, and doesn’t have a complete configuration. Behavior changes between versions in undocumented ways. Here’s a couple of things I noticed when upgrading from Junos 17.3 to 17.4. These also apply if you are running 18.4 code. I hit more problems with 18.4, and ended up rolling back to 17.4.
Big Changes in Reported Throughput
Here’s a graph showing total reported throughput for a QFX10K I upgraded:
There’s a few things going on there. First the reported traffic drops to zero after I upgraded. Then it starts coming up, after I fixed the first problem. But then after that the reported traffic is flat, and lower than it should be. Then it starts coming up again after I made the second fix.
First Problem: Chassis Sample Instance
The first configuration change I needed to add was this: set chassis fpc 0 sampling-instance sample-border, where sample-border is the name of the sampling instance I have configured under forwarding-options. This was not required with 17.3. If you don’t do it with 17.4, you won’t get any data.
Second Problem: DDoS-Protection
Some Juniper platforms implement Continue reading
April Customer Newsletter
Welcome to the April 2020 edition of the Tigera Calicommunication newsletter! In the March edition, we discussed context-aware flow logs. This edition covers the next component of logging, the audit logs.
Using Calico Enterprise Audit Logs to Improve Visibility, Security, and Compliance
Watch this short video to see how you can benefit from using Calico Enterprise Audit Logs.
What problems are we solving?
Kubernetes is an API-driven platform. Every action happens through an API call into the kube API server. Consequently, recording and monitoring API activity is very important. While most deployments end up sending these logs to a remote destination for compliance purposes, these logs are often not easily accessible when needed. Moreover, different roles (platform, network, security) have different requirements, and many may not even have access to the logs. Some use cases relevant to log analysis are as follows.
- A policy change resulted in a sudden outage of a service. How do you find out which policies have changed in the last 24 hours? [network, security]
- You are maintaining a critical namespace and want to monitor every pod that comes up in that namespace. Can you get an alert if a pod is created in that Continue reading
Cisco Emphasizes Need for Modern Network Architecture
“This is a huge innovation cycle we have to go through,” Cisco's Scott Harrell said.
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Daily Roundup: Is AT&T Readying More Job Cuts?
The carrier is “sizing our operations to economic activity”; VMware is helping Vodafone cut...
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Cumulus content roundup: March 2020
Spring has sprung! With the change of the seasons, we’ve kept busy pumping out new content and useful resources. If you’re looking for a quick mental vacation, get ready to cozy up with this month’s edition of the Cumulus Content Roundup. We’ve got exciting announcements, fresh podcast episodes for your listening enjoyment, as well as blog posts packed with open networking and data center goodness.
From Cumulus Networks
Cumulus Networks launches the industry’s first open source and fully packaged automation solution — making open networking easier to deploy and manage and enabling infrastructure-as-code models: Cumulus Networks announces the release of its production-ready automation solution for organizations moving towards fully automated networks! Read all about how we are taking the next step in network automation in this blog post.
Production-ready automation — the how and why: So we’ve announced the industry’s first open source and fully packaged automation solution– but how exactly did we get there? This blog post dives into the challenges that customers were facing and the reason we wanted to help.
A new era for Cumulus in the Cloud: Can you believe that Cumulus in the Cloud was launched over two years ago? Yeah, we’re also Continue reading
AT&T Hints at COVID-19 Related Job Cuts
It expects "sizing our operations to economic activity" along with its ongoing business execution...
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Versa Targets SMBs, Pens SD-WAN Deal With Nuvias
Versa Titan promises to simplify the deployment and management of branch offices and make it easier...
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Vodafone Cut Costs 50% With VMware Telco Cloud
VMware’s network virtualization infrastructure supports voice core, data core, and service...
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