Data ‘tsunami’ to absorb 20% of world electricity

It’s the "Dirty Cloud," says journalist John Vidal in a recent tweet. Vidal is referring to energy use by data centers, which he wrote about in an article for Climate Home News.In the story, published this week, the Guardian environment writer reveals a bleak picture of future global climate change emissions. Bleak, in part, because the discouraging projections he writes of are caused not by, as one might expect, fossil fuel power plants and internal combustion engine users, but by communications and data center power use.To read this article in full, please click here

Data ‘tsunami’ to absorb 20% of world electricity

It’s the "Dirty Cloud," says journalist John Vidal in a recent tweet. Vidal is referring to energy use by data centers, which he wrote about in an article for Climate Home News.In the story, published this week, the Guardian environment writer reveals a bleak picture of future global climate change emissions. Bleak, in part, because the discouraging projections he writes of are caused not by, as one might expect, fossil fuel power plants and internal combustion engine users, but by communications and data center power use.To read this article in full, please click here

JAUT Course – Review Midweek

Hi,

Its been 3/5 Days in JAUT training and I should say Juniper has done a great job in introducing various training concept and methodologies towards Network scripting / automation.

Here are some-thing that helped

– No high stress on learning programming , they kept it to minimal and interestingly they made it more on how automation works and done instead of programming concepts – this is done in many courses

– Stress on PYEZ and Good Introduction to Ansible, simple labs  and then making the lab cover all the concepts is another great way Juniper helped to Learn us the course

– Main take-away till now is Ansible / intro to Jinja2 & YAML and templating configuration which i felt very refreshing and all my fears about templating has atleast vanished  till now.

I cant wait to blog on things that i have learnt during the training and implement it in my own lab, i will keep this topic alive for a while.

 

Cheers

Rakesh M

Two Hyperscalers Down For AMD’s Epyc, Six To Go

You can’t call them the Super 8 because the discount hotel chain already has that name. But that is what they – with the they being Google, Amazon, Microsoft, and Facebook in the United States and Baidu, Alibaba, Tencent, and China Mobile in China – are. They are the biggest spenders, the hardest negotiators, and the most demanding customers in the IT sector.

Any component supplier that gets them buying their stuff gets kudos for their design wins and is assured, at least for a generation of products, a very steady and large demand, even if they might not bring …

Two Hyperscalers Down For AMD’s Epyc, Six To Go was written by Timothy Prickett Morgan at The Next Platform.

Installing the VMware Horizon Client on Fedora 27

In this post, I’ll outline the steps necessary to install the VMware Horizon client for Linux on Fedora 27. Although VMware provides an “install bundle,” the bundle does not, unfortunately, address any of the prerequisites that are necessary in order for the Horizon client to work. Fortunately, some other folks shared their experiences, and building on their knowledge I was able to make it work. I hope that this post will, in turn, help others who may find themselves in the same situation.

Based on information found here and here, I took the following steps before attempting to install the VMware Horizon client for Linux:

  1. First, I installed the libpng12 package using sudo dnf install libpng12.

  2. I then created a symbolic link for the libudev.so.0 library that the Horizon client requires:

    sudo ln -s /usr/lib64/libudev.so.1 /usr/lib64/libudev.so.0

  3. I created a symbolic link for the libffi.so.5 library the Horizon client expects to have available:

    sudo ln -s /usr/lib64/libffi.so.6 /usr/lib64/libffi.so.5

With these packages and symbolic links in place, I proceeded to install the VMware Horizon client using the install bundle downloaded from the public VMware web site (for version 4. Continue reading

Another BGP Routing Incident Highlights an Internet Without Checkpoints

Yesterday, there were two BGP routing incidents in which several high-profile sites (Google, Apple, Facebook, Microsoft, Twitch, NTT Communications and Riot Games) were rerouted to a previously unused Russian AS. The incidents only lasted about three minutes each, but demonstrated once again the lack of routing controls like those called for in MANRS that could have prevented this from happening.

As reported in BGPmon’s blog post on 12 December 12,

“…our systems detected a suspicious event where many prefixes for high profile destinations were being announced by an unused Russian Autonomous System.

Starting at 04:43 (UTC) 80 prefixes normally announced by organizations such Google, Apple, Facebook, Microsoft, Twitch, NTT Communications and Riot Games were now detected in the global BGP routing tables with an Origin AS of 39523 (DV-LINK-AS), out of Russia.”

Either a configuration mistake or a malicious attack, it propagated quickly through the Internet without visible obstacles. This was one of almost 5000 route leaks and hijacks in 11 months of 2017. For comparison, network outages during the same period caused almost 8000 incidents (source: https://bgpstream.com/):

In practice, the efficacy of corrective actions strongly depends on the reliability and completeness of information related to Continue reading

Internet Giants Should Be Broken Up

This is a 30 minute presentation that highlights the lack of societal value that Google, Apple, Facebook and Amazon deliver. Galloway examines their market dominance and how the market is failing to regulate or control the tech companies. I recommend watching this and considering the ideas proposed here. Galloway is well known and worth listening […]

A Purified Implementation Of NVM-Express Storage

NVM-Express holds the promise of accelerating the performance and lowering the latency of flash and other non-volatile storage. Every server and storage vendor we can think of is working to bring NVM-Express into the picture to get the full benefits of flash, but even six years after the first specification for the technology was released, NVM-Express is still very much a work in progress, with capabilities like stretching it over a network still a couple of years away.

Pure Storage launched eight years ago with the idea of selling only all-flash arrays and saw NVM-Express coming many years ago, and …

A Purified Implementation Of NVM-Express Storage was written by Jeffrey Burt at The Next Platform.

Episode 17 – BGP: Peering and Reachability

In this Community Roundtable episode, returning guests Russ White and Nick Russo start our three part deep dive into the Border Gateway Protocol, or BGP, with a look at terminology, how peer relationships form, the differences between internal and external BGP, and scaling techniques.

 

Show Links

https://tools.ietf.org/html/rfc4271

https://www.ietf.org/rfc/rfc1771.txt

http://bgp.us/

 

Show Notes

Overview

  • BGP is an external gateway protocol used widely in both the public internet and with enterprise organizations
  • BGP is the only external gateway protocol and is traditionally used primarily to connect networks to other networks
  • BGP was built primarily for policy propagation to provide reliability, scalability, and control
  • BGP v4 is created which is the base version we still use today though updated over the year

 

Terminology

  • Devices running BGP are called speakers
    • A connection between two speakers is called a peering session
    • The two speakers are often called peers or neighbors
  • Network Layer Reachability Information is a key term to remember — NLRI
    • Address Families (AFs) carry NLRIs for different topologies and different kinds of reachability information (v4, v6, ethernet, mpls, etc.
  • Autonomous System–a set of bgp speakers contained within a single administrative domain (with some rather loose Continue reading
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