Investigations, conducted together with scientists at CERN, show promising results – with breakthrough performance – in their pursuit of faster Monte Carlo based simulations, which are an important part of many scientific, engineering, and financial applications. …
Today's Network Break explores new Catalyst hardware and micro switches from Cisco, a new security offering from Fortinet that combines endpoint security with cloud analytics, an Internet sleuth tracking IPv4 shenanigans, financial results from Juniper and F5, and a whopping big investment for routing startup DriveNets.
Today's Network Break explores new Catalyst hardware and micro switches from Cisco, a new security offering from Fortinet that combines endpoint security with cloud analytics, an Internet sleuth tracking IPv4 shenanigans, financial results from Juniper and F5, and a whopping big investment for routing startup DriveNets.
Wojciech explains what Quantum Networking/Internet is and what it’s not. Rick and Melchior ask Wojciech all about entanglement, fidelity, qubits, Quantum Key Distribution (QKD), spooky action at a distance and his work in the IETF Quantum Internet Research Group (QIRG).
User satisfaction with Wi-Fi relies in part on whether the network supports smooth handoffs between access points as users and their devices roam about, and if the APs don’t do their job well, users will complain.
Wi-Fi resources
How-to measure enterprise Wi-Fi speeds
How to determine if Wi-Fi 6 is right for you
Five questions to answer before deploying Wi-Fi 6
Wi-Fi 6E: When it’s coming and what it’s good for
The initial tendency may be to install more APs in hopes of finding an easy fix, but doing so without careful analysis can make the situation even worse. Proper roaming requires more than just good signal strength throughout coverage areas; it takes a careful balance between the coverage of each AP on both 2.4 and 5GHz bands to make roaming work right.To read this article in full, please click here
Google Cloud Platform (GCP) is the best hyperscale performer across all areas of throughput while Microsoft Azure has the best storage systems and Amazon Web Services (AWS) has the lowest network latency.Those are the findings of a series of benchmarks performed by the atrociously named Cockroach Labs, maker of a scalable, resilient database called CockroachDB that runs on all three services. The study, part of the company’s third annual Cloud Report, evaluated the performance of AWS, Microsoft Azure, and Google Cloud in online transaction processing (OLTP) applications.In total, 54 machines were assessed and almost 1,000 benchmark runs were conducted to measure CPU, network, storage I/O, and TPC-C performance, among others.To read this article in full, please click here
Almost exactly a year ago Miha Markočič joined the ipSpace.net team. He was fresh out of university, fluent in Python, but with no networking or automation background… so I decided to try my traditional method of getting new team members up to speed: throw them into the deep water, observe how quickly they learn to swim, and give them a few tips if it seems like they might be drowning.
It worked out amazingly well. Miha quickly mastered the intricacies of AWS and Azure, and created full-stack automation solutions in Ansible, Terraform, CloudFormation and Azure Resource Manager to support the AWS and Azure webinars, and the public cloud networking online course.
Almost exactly a year ago Miha Markočič joined the ipSpace.net team. He was fresh out of university, fluent in Python, but with no networking or automation background… so I decided to try my traditional method of getting new team members up to speed: throw them into the deep water, observe how quickly they learn to swim, and give them a few tips if it seems like they might be drowning.
It worked out amazingly well. Miha quickly mastered the intricacies of AWS and Azure, and created full-stack automation solutions in Ansible, Terraform, CloudFormation and Azure Resource Manager to support the AWS and Azure webinars, and the public cloud networking online course.
In the world of network engineering, learning a new syntax for a NOS can be daunting if you need a specific config quickly. Juniper is a popular option for service providers/data centers and is widely deployed across the world.
This is a continuation of the Rosetta stone for network operating systems series. In this portion of the series we will be covering Open Shortest Path First, OSPF, version 2 which is a popular interior gateway protocol (IGP).
You can find the first article of the series Juniper to Mikrotik – BGP Commands here.
While many commands have almost the exact same information, others are as close as possible. Since there isn’t always an exact match, sometimes you may have to run two or three commands to get the information needed.
Using EVE-NG for testing
We conducted all testing on EVE-NG utilizing the topology seen below.
Recently I wrote simple encryption and decryption programs in Python to practice my coding skills. The first cipher_encrypt utility takes the clear_text.txt file as input. It first capitalizes all letters and then encrypts the text with the Rail fence cipher. The number of rows can be set using the variable k. The result of the […] Continue reading...
Arista published a blog post describing the details of
forwarding table sizes on 7050QX-series switches. The description includes the base mode (fixed tables), unified forwarding tables and even the IPv6 LPM details, and dives deep into what happens when the switch runs out of forwarding table entries.
Too bad they’re describing an ancient Trident-2 ASIC (I last mentioned switches using it in 2017 Data Center Fabrics update). Did NDA expire on that one?
Arista published a blog post describing the details of
forwarding table sizes on 7050QX-series switches. The description includes the base mode (fixed tables), unified forwarding tables and even the IPv6 LPM details, and dives deep into what happens when the switch runs out of forwarding table entries.
Too bad they’re describing an ancient Trident-2 ASIC (I last mentioned switches using it in 2017 Data Center Fabrics update). Did NDA expire on that one?
This series of posts will describe the process of deploying a NXOS Leaf and spine fabric in a declarative manner using Ansible. This came from my project for the IPSpace Building Network Automation Solutions course and was used in part when we were deploying leaf and spine fabrics in our Data Centers. I originally only planned to build tenants and do fabric validation but over time this has morphed into a full blown fabric deployment.
In the past, I have blended links of a more controversial nature about culture, technology, and governance into my weekend reads posts. There has been so much, however, on the situation with social media platforms blocking prominent people, and the Parler takedown, that it seemed worth setting aside an entire post containing some of the interesting things I’ve run across on these topics. I may, from time to time, gather up more controversial sets of reading into separate posts in the future, so people can skip (or read) them if they want to.
Decades ago I understood the intricacies of AAA on Cisco IOS. These days I wing it and keep throwing spaghetti at the virtual wall until something sticks and I can log in (after all, it’s all in a lab, and I’m interested in routing protocols not interactions with TACACS+ server).
Decades ago I understood the intricacies of AAA on Cisco IOS. These days I wing it and keep throwing spaghetti at the virtual wall until something sticks and I can log in (after all, it’s all in a lab, and I’m interested in routing protocols not interactions with TACACS+ server).