Stuff The Internet Says On Scalability For January 10th, 2020

 Wake up! It's HighScalability time:

Forrest Brazeal warns you not to spend your limited innovation credits building bespoke, complex systems that provide no direct value to your business, instead position yourself at the top of what heI calls the Wisdom/Cleverness Curve

 

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Number Stuff:

Don't miss all that the Internet has to say on Scalability, click below and become eventually consistent with all scalability knowledge (which means this post has many more items to read so please keep on reading)...

Cisco NX-OS Graceful Insertion and Removal (GIR)

Cisco GIR

If you operate a data-center network with Cisco Nexus, you’ve probably already faced the problem of how to perform a maintenance on one of the two switches of a vPC pair, with minimum impact and risks for the production network. Cisco NX-OS contains a feature called “Graceful Insertion and Removal” or GIR to help you for that. Here is how it works. Scenario Let’s take the example below: (click on the image to see a larger version) We have two Nexus (in nx-os mode) in vPC. Doing layer-2 aggregation and …

The post Cisco NX-OS Graceful Insertion and Removal (GIR) appeared first on AboutNetworks.net.

Doing The Math On Fractal HPC

At every key leap in processing capacity in high performance computing – and just rattling off more than two decades from teraflops through petaflops, and now on the verge of exaflops in two years or so – there has been this tension between custom-built systems that break through performance barriers and more general purpose machines based on more off of the shelf components that cost less and tend to be fast followers. …

Doing The Math On Fractal HPC was written by Timothy Prickett Morgan at The Next Platform.

The Art of Saying “No”

No.

It’s the shortest sentence in the English language. It requires no other parts of speech. It’s an answer, a statement, and a command all at once. It’s a phrase that some people have zero issues saying over and over again. And yet, some others have an extremely difficult time answering anything in the negative.

I had a fun discussion on twitter yesterday with some friends about the idea behind saying “no” to people. It started with this tweet:

Coincidentally, I tweeted something very similar to what Bob Plankers had tweeted just hours before:

The gist is the same though. Crazy features and other things that have been included in software and hardware because someone couldn’t tell another person “no”. Sadly, it’s something Continue reading

Equinix CEO Talks Edge: Friend or Foe?

“In a fully densified 5G world will a set of use cases begin to emerge that are going to demand...

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Money Moves: December 2019

Intel challenges Nvidia with its $2 billion Habana purchase; Cisco buys Exablaze; Fortinet snapped...

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Ten challenges for making automation a ‘team player’ in joint human-agent activity

Ten challenges for making automation a ‘team player’ in joint human-agent activity, Klein et al., IEEE Computer Nov/Dec 2004

With thanks to Thomas Depierre for the paper suggestion.

Last time out we looked at some of the difficulties inherit in automating control systems. However much we automate, we’re always ultimately dealing with some kind of human/machine collaboraton. Today’s choice looks at what it takes for machines to participate productively in collaborations with humans. Written in 2004, the ideas remind me very much of Mark Burgess’ promise theory, which was also initially developed around the same time.

Let’s work together

If a group of people (or people and machines) are going to coordinate with each other to achieve a set of shared ends then there are four basic requirements that must be met to underpin their joint activity:

  1. They must agree to work together (the authors call this agreement a Basic Compact).
  2. They must be mutually predictable in their actions
  3. They must be mutually directable.
  4. They must maintain common ground.

A basic compact is…

… an agreement (often tacit) to facilitate coordination, work toward shared goals, and prevent breakdowns in team coordination. This Compact involves a commitment Continue reading

DIY communications networks to trend in 2020, says major telco

Communications networks without a centralized infrastructure will become more popular this year as folks become increasingly aware of data collection from governments and tech companies, says telecommunications provider Telenor Group.The company refers to fully encrypted mesh and peer-to-peer apps as the technology that will enable these consumer-level “off-the-grid, build-it-yourself” links. Mesh apps will also be useful in disasters where traditional networks fail.[Get regularly scheduled insights by signing up for Network World newsletters.] “Communicating without a central coordinating network is appealing to people for many reasons, and in 2020, we expect to see more go that route, especially in conflict situations, to mobilize for protests, and simply to stay below the radar,” the company says on its website.To read this article in full, please click here

Aruba reinforces SD-Branch with security, management upgrades

Aruba has taken steps to bolster the security and manageability of its branch-office networking package for customers with lots of branch sites.The HPE company enhanced its SD-Branch software with identity-based attack detection and intrusion prevention, and improvements to its SD-WAN Orchestrator to make it easier to deploy security features on a large scale.See predictions about what's big in IT tech for the coming year. Aruba’s SD-Branch software runs on its branch gateways and includes a variety of integrated features like a firewall that support LAN, WAN, Wi-Fi networks, and segmentation as well integration with the company’s ClearPass policy-management software and its cloud-based package Aruba Central. The package can integrate its data with partner security platforms such as Check Point, Palo Alto Networks, and Z-Scaler.To read this article in full, please click here

Aruba SD-Branch Update Targets Retail

The update includes new branch hardware with built-in cellular capabilities, improved security...

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Veeam Snatched Up by Insight for $5B

Strong growth, high customer retention, and expansion opportunities make Veeam "one of the most...

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AT&T Clarifies Perplexing, Ambiguous Network Virtualization Goal

AT&T’s ongoing network virtualization effort, specifically the amount of core network...

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IPv6 Buzz 042: Why Wireless Is A Smart Place To Start With IPv6

If you're looking for a way to bring IPv6 into your environment, the WLAN may be your best bet. Find out why in the latest episode of IPv6 Buzz with guest Jeffry Handal. Jeffry cut his teeth with an early v6 deployment on the wireless network of Louisiana State University (LSU). This WLAN serves 40,000 users and over 100,000 devices. He shares his experiences and talks about how vendor adoption of v6 had advanced since that deployment.

IPv6 Buzz 042: Why Wireless Is A Smart Place To Start With IPv6

If you're looking for a way to bring IPv6 into your environment, the WLAN may be your best bet. Find out why in the latest episode of IPv6 Buzz with guest Jeffry Handal. Jeffry cut his teeth with an early v6 deployment on the wireless network of Louisiana State University (LSU). This WLAN serves 40,000 users and over 100,000 devices. He shares his experiences and talks about how vendor adoption of v6 had advanced since that deployment.

The post IPv6 Buzz 042: Why Wireless Is A Smart Place To Start With IPv6 appeared first on Packet Pushers.

Strong Encryption Is Central to Good Security – India’s Proposed Intermediary Rules Puts It at Risk

Security and encryption experts from around the world are calling on the Indian Ministry of Electronics and Information Technology (MeiTy) to reconsider proposed amendments to intermediary liability rules that could weaken security and limit the use of strong encryption on the Internet. Coordinated by the Internet Society, nearly thirty computer security and cryptography experts from around the world signed “Open Letter: Concerns with Amendments to India’s Information Technology (Intermediaries Guidelines) Rules under the Information Technology Act.”

MeiTy is revising proposed amendments to the Information Technology (Intermediaries Guidelines) Rules. The proposed amendments would require intermediaries, like content platforms, Internet service providers, cybercafés, and others, to abide by strict, onerous requirements in order to not be held liable for the content sent or posted by their users. Freedom from intermediary liability is an important aspect of communications over the Internet. Without it, people cannot build and maintain platforms and services that have the ability to easily handle to billions of people.

The letter highlights concerns with these new rules, specifically requirements that intermediaries monitor and filter their users’ content. As these security experts state, “by tying intermediaries’ protection from liability to their ability to monitor communications being sent across their platforms or systems, the amendments would limit Continue reading

How to Add Approval Steps to Ansible Tower Workflows

Blog_add-approval-steps-to-ansible-tower-workflows

Suppose you have a workflow set up in Red Hat Ansible Tower with several steps and needed another user to view and approve some or all of the nodes in the workflow.  Or maybe a job is running inside of a workflow but it should be viewed and approved within a specific time limit, or else get canceled automatically?  Perhaps it would be useful to be able to see how a job failed before something like a cleanup task gets set off?  It is now possible to insert a step in between any job template or workflow within that workflow in order to achieve these objectives.

 

Table of Contents

A New Feature for Better Oversight and More User Input

How to Add Approval Nodes to Workflows

What Happens When Something Needs Approval?

Approval Notifications

Timeouts

Approval-Specific Role-Based Access Controls

Summary

Where to Go Next

 

A New Feature for Better Oversight and More User Input

The Workflow Approval Node feature has been available in Ansible Tower since the release of version 3.6.0 on November 13, 2019.  In order to visually compare the additional functionality, examine the before and after examples of a workflow Continue reading

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