Enterprise network trends to watch

What's going to shake things up in 2018? IT pros will have their hands full with technologies that have been hyped for some time and are now ripe for adoption, including software-defined WAN, hybrid cloud computing, hyperconvergence, and Internet of Things. See below for our collection of enterprise picks, predictions and prognostications.Why 2018 will be the year of the WAN Thinkstock Software-defined WAN technology is sweeping across the industry, growing from an emerging technology in 2017 to become mainstream in 2018. As SD-WAN deployments become ubiquitous for organizations with remote offices, more big changes will come. Check it out.To read this article in full, please click here

Enterprise network trends to watch

What's going to shake things up in 2018? IT pros will have their hands full with technologies that have been hyped for some time and are now ripe for adoption, including software-defined WAN, hybrid cloud computing, hyperconvergence, and Internet of Things. See below for our collection of enterprise picks, predictions and prognostications.Why 2018 will be the year of the WAN Thinkstock Software-defined WAN technology is sweeping across the industry, growing from an emerging technology in 2017 to become mainstream in 2018. As SD-WAN deployments become ubiquitous for organizations with remote offices, more big changes will come. Check it out.To read this article in full, please click here

LVM Configuration the Easy Way

Now oVirt features a simple way to prevent a host from scanning and then activating logical volumes that are not required directly by the host. In particular, the solution addresses logical volumes on shared storage managed by oVirt, and logical volumes created by a guest in oVirt raw volumes. Why is a solution required? Because scanning and activating other logical volumes may cause data corruption, slow boot, and other issues.

The solution is configuring an LVM filter on each host, which allows LVM on a host to scan only the logical volumes required directly by the host. To achieve this, we have introduced a vdsm-tool command, config-lvm-filter, that will configure the host for you.

The new command, vdsm-tool config-lvm-filter analyzes the current LVM configuration to decide whether a filter should be configured. Then, if the LVM filter has yet to be configured, the command generates an LVM filter option for this host, and adds the option to the LVM configuration.

Scenario 1: An Unconfigured Host

On a host yet to be configured, the command automatically configures the LVM once the user confirms the operation:

# vdsm-tool config-lvm-filter
Analyzing host...
Found these mounted logical volumes on this host:

  logical volume:  /dev/mapper/vg0-lv_home
   Continue reading

Simplifying ipSpace.net Products

When I started my ipSpace.net project life was simple: I had a few webinars, and you could register for the live sessions. After a while I started adding recordings, subscriptions, bundles, roadmaps (and tracks), books… and a few years later workshops and online courses.

As you can imagine, the whole thing became a hard-to-navigate mess. Right now you can buy almost 70 different products on ipSpace.net. Time for a cleanup.

Network Neutrality – Again

Technology with Purpose: Vashkar Bhattacharjee’s Story

In honor of today’s International Day of Persons with Disabilities, we are sharing part one of Vashkar Bhattacharjee’s story. He is the National Consultant, Accessibility, A2i, Prime Minister’s Office of Bangladesh, and the Program Manager, Young Power in Social Action (YPSA).

I am Vashkar Bhattacharjee, a visually impaired person from Bangladesh. And this is the story of how I have excelled in life and career, not through sympathy and charity, but through inspiration and assistance.

In Bangladesh, every 1 in 10 persons experience at least one kind of disability. I am one of approximately 4 million Bangladeshis who are visually impaired.

In 1979, like most of the villages in Bangladesh, my village in the district of Chittagong did not have doctors or hospital facilities. On July 1^st in the same year, in a small remote village called Bagdondi, I was born in my parental home without any medical supervision. Right after my birth, I was bleeding through my nose and mouth. My parents and relatives could not figure out what was wrong. After a while, the bleeding stopped and everything seemed to be normal. By the time I was two years old, my parents realized the heartbreaking truth that Continue reading

Worth Reading: The Basic Math behind Reliability

Diptanshu Singh wrote a nice explanation of the math behind reliability calculations. Definitely worth reading even if you hated statistics.

A Dummy Light for My Network

I’ve always heard the red lights in car dashboard referred to as Dummy Lights. One example might be the use of a light to indicate high temperature in lieu of a temperature gauge. Over the past few weeks, I’ve spent more time doing unique things with hardware and software. Yesterday I challenged myself to build an indicator light to show health issues with my Meraki MX.

Before I get into this, the cool factor here is not what I have built. The cool factor is that someone with very little experience, driven by curiosity, can build this in a very short period of time. I’m neither a professional developer nor someone with deep knowledge around hardware hacking. So I want to solicit thoughts, feedback, and recommendations.

The Trigger

After a little research, I found that the Meraki Dashboard provides a “Load Monitor” that is returned via a perfScore value. This feature is in beta and there’s not a lot of information on it. Therefore, consider your own data source that you would like to use as a trigger value. The following python code will store a numeric value (score) between 1 and 100 (with a lower number being a better score).

import  Continue reading

A Dummy Light for My Network

I’ve always heard the red lights in car dashboard referred to as Dummy Lights. One example might be the use of a light to indicate high temperature in lieu of a temperature gauge. Over the past few weeks, I’ve spent more time doing unique things with hardware and software. Yesterday I challenged myself to build an indicator light to show health issues with my Meraki MX.

Before I get into this, the cool factor here is not what I have built. The cool factor is that someone with very little experience, driven by curiosity, can build this in a very short period of time. I’m neither a professional developer nor someone with deep knowledge around hardware hacking. So I want to solicit thoughts, feedback, and recommendations.

The Trigger

After a little research, I found that the Meraki Dashboard provides a “Load Monitor” that is returned via a perfScore value. This feature is in beta and there’s not a lot of information on it. Therefore, consider your own data source that you would like to use as a trigger value. The following python code will store a numeric value (score) between 1 and 100 (with a lower number being a better score).

import  Continue reading

A Dummy Light for My Network

I’ve always heard the red lights in car dashboard referred to as Dummy Lights. One example might be the use of a light to indicate high temperature in lieu of a temperature gauge. Over the past few weeks, I’ve spent more time doing unique things with hardware and software. Yesterday I challenged myself to build an indicator light to show health issues with my Meraki MX.

Before I get into this, the cool factor here is not what I have built. The cool factor is that someone with very little experience, driven by curiosity, can build this in a very short period of time. I’m neither a professional developer nor someone with deep knowledge around hardware hacking. So before I get too deep into this, I want to solicit thoughts, feedback, and recommendations.

The Trigger

After a little research, I found that the Meraki Dashboard provides a “Load Monitor” that is returned via a perfScore value. This feature is in beta and there’s not a lot of information on it. Therefore, consider your own data source that you would like to use as a trigger value. The following python code will store a numeric value (score) between 1 and 100 (with a Continue reading

Juniper vSRX Vagrant Libvirt Box Install

Juniper vSRX Vagrant Libvirt Box Install

Tool-of-the-day: Isochronous Round-Trip-Tester

Dave Taht sent me a link to IRTT after I published a blog post on measuring end-to-end latency with an Ansible playbook. Definitely looks like a tool worth having in your toolbox.

Interoperability between Dell and Cisco: Rapid-PVST+

Today I am going to talk about the PVST+ as many of you already know. PVST+ is the advance version of PVST and stands for the Per VLAN spanning Tree Plus. As the name suggest you can have the you are creating STP for the VLANs. So if you have 3 VLANs in your network you have 3 different STP instances per VLAN in your LAN network.

Before I start with the PVST+ ,I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos

Subscribe us on Youtube: http://y2u.be/0c4lMYVp9go

Here today I am taking an example where i am taking Cisco and Dell switches in a LAN network and we are going to check the interoperability between the Cisco and Dell. 

Below is the sample network topology showing the Cisco and Dell switches 

Fig 1.1- LAN network STP topology

So in the above mentioned topology, we have 2 Cisco 3550 switches and connected with the Dell Force10 S60 switch Continue reading

Uber, Culture, And The Most Important Lesson I Learned from Mark Leslie

Upcoming Seminar: Brighttalk on the future of networking

On Tuesday the 5th, I’m participating in a webcast discussion about the future of networking over at Brighttalk. The details and registration linked below. I’ll be in a hotel room; I’m hoping the audio and lighting will work out correctly.

Re-Engineering Enterprise IT: A Blueprint for the Modern Infrastructure

The Booming Server Market In The Wake Of Skylake

The slowdown in server sales ahead of Intel’s July launch of the “Skylake” Xeon SP was real, and if the figures from the third quarter of this year are any guide, then it looks like that slump is over. Plenty of customers wanted the shiny new Skylake gear, and we think a fair number of them also wanted to buy older-generation “Broadwell” Xeons and the “Grantley” server platform given the premium that Intel is charging for Skylake processors and their “Purley” platform.

Server makers with older Broadwell machinery in the barn were no doubt happy to oblige customers and clear …

The Booming Server Market In The Wake Of Skylake was written by Timothy Prickett Morgan at The Next Platform.

The Largest Rounds of Funding in 2017, So Far

Investors put money into IoT, cybersecurity, the cloud, containers, and more.

Hyperconverged Infrastructure Eases IT Transformation to the Hybrid Cloud

Organizational readiness is a big factor in HCI integration.

Getting Hyper And Converged About Storage

Hyperconverged infrastructure is a relatively small but fast-growing part of the datacenter market, driving in large part by enterprises looking to simplify and streamline their environments as they tackle increasingly complex workloads.

Like converged infrastructure, hyperconverged offerings are modular in nature, converging compute, storage, networking, virtualization and management software into a tightly integrated single solution that drives greater datacenter densities, smaller footprints, rapid deployment and lower costs. They are pre-built, pre-validated before shipping from the factory, eliminating the need for the user to do the necessary and time-consuming integration. Hyperconverged merges the compute and storage into a single unit, and …

Getting Hyper And Converged About Storage was written by Jeffrey Burt at The Next Platform.