vNICS: Good Idea, Some Annoying Limitations
Recently we were implementing a backup site for a web-based application. The primary site uses a blade chassis, with multiple 1Gb Ethernet switches, and 8Gb fibre channel SAN connectivity. The backup...
View Article“Virtual-Networking” is as meaningless a term as “Cloud” now.
With so much virtual-networking stuff going on these days, its worth taking a step back and trying to understand what the hell Virtual-Networking really is. So many products and technologies that do...
View ArticleWho Owns What? On Service Demarcation
This is my first post in a couple of weeks. I’ve been busy tidying up a lot of loose ends in preparation for officially leaving my employer of 17 years. You know the kind of thing – carting out...
View ArticleBrocade Virtual Symposium – Soft Core and Hard Edges (Sponsored)
The Brocade Virtual Symposium gave me a surprise when I discovered that Brocade has a software switching solution for VMware environments. It's different approach to Cisco and suitable for most...
View ArticleThe Cost of IPv6 on Amazon Web Services
AWS is a great platform for businesses that have the technical savvy to administer servers and applications but do not want to bear the costs and responsibilities of on-site physical infrastructure....
View ArticleSecurity Superstition
A scientist is never certain. We all know that. We know that all our statements are approximate statements with different degrees of certainty; that when a statement is made, the question is not...
View ArticleThe Man in the White Suit
I know this is a technical blog, but I’ve always agreed with those that believe the best way to deliver a message is through a story. As imaginative and creative as I feel I can sometimes be, writing...
View ArticleA Small Yellow Wooden Door: Thinking Practically About SDN
As I do most days, I took a walk in the woods at the back of my garden after a hearty dinner. I was quite surprised to come across a small wooden yellow door I’d never seen before, set into the trunk...
View ArticleProgramming 101 for Network Engineers – Why Bother?
Is this you perhaps? You’re the king of the network. You know it all inside out (your company and its processes too). You have every CLI mastered, you know the RPs you use in-depth, you’ve seen and...
View ArticleProgramming 101 for Network Engineers – Preparation
Okay, let’s say you’re convinced you need to learn to programme and you don’t want to be left behind. The earlier you start, the more you can pick up (and the sooner you’ll become consciously...
View ArticleProgramming 101 for Network Engineers – Basic Language Elements & Concepts 2
Welcome to the fourth part of the Programming 101 for Network Engineers series and part two of the Basic Language Elements and Concepts article. The following overview of programming language elements...
View ArticleYou’ve Changed – SDN’s Casualties
I’ve a few things to thank Ivan for this last week. First off, this post led me to some great career-related articles and really got me thinking on the subject. Also, should I ever feel the need, I can...
View ArticleThinking About SDN Packet Processing: You’re the One Talking to a Fish
Barbie films (yes, I really am talking about Barbie in a network blog post) are a big hit with my kids, and surprisingly with me too. I’ll possibly regret telling the world that, but anyway, there’s an...
View ArticleCisco ASA Virtualization with Mixed-Mode Security Contexts
The Cisco ASA firewall has supported multiple security contexts since version 7 was released in 2005. This feature allows you to configure multiple independent logical firewalls in the same ASA...
View ArticleSDN 2014 – Make Our Garden Grow – Part 1
Let dreamers dream what worlds they please Those Edens can’t be found The sweetest flowers The fairest trees Are grown in solid ground We’re neither pure nor wise nor good We’ll do the best we know...
View ArticleTCP/IP over VXLAN Bandwidth Overheads
A recent ‘conversation’ around VXLAN encapsulation and MTU with Matt Oswalt got me thinking about this subject recently. My calculations were mostly wrong (Matt’s were not) and I also found a shocking...
View ArticleYou Decide
You decide; a strong view on the the future of careers in networking and the choice we all face. The post You Decide appeared first on Packet Pushers.
View ArticleOracle VirtualBox Network Modes
There’s been a whole heap (programming pun intended) of blogs around automation and virtualisation over the last few years, with some rather good ones of late centred around the now classic mix of...
View ArticleStop Being A Specialist
When I began my IT journey I had a guy that I worked with that had been in IT since the 90s. He told me that I needed to find my niche and stay there. He said if you know everything about one little...
View ArticleSkyport Systems: Fortress Infrastructure
The attitude of breach presumption is one that has fostered a family of seek-and-destroy security products. Find the infected system and fix it. Fair enough. Breach presumption is perhaps a wise...
View ArticleIntel’s Network Ambitions
Intel is aggressively positioning itself to become the dominant platform for virtual networking and NFV. That’s my takeaway from Intel Cloud Day. The post Intel’s Network Ambitions appeared first on...
View ArticleTech Field Day Goes To 11
Tech Field Day 11 cranks the volume and busts silos with vendor presentations on networking, storage, security, analytics & more. The post Tech Field Day Goes To 11 appeared first on Packet Pushers.
View ArticleFull Stack Journey 028: Turning The Mic On Scott Lowe
Today's Full Stack Journey episode puts host Scott Lowe in the guest chair to share his own sojourns through the IT stacks. The post Full Stack Journey 028: Turning The Mic On Scott Lowe appeared first...
View ArticleFull Stack Journey 042: How An IT Specialist Chooses Adjacent Competencies
David Klee is a SQL database expert, but he's also knowledgeable about virtualization, networking, and infrastructure. In today's Full Stack Journey podcast, host Scott Lowe talks with David about how...
View ArticleDay Two Cloud 049: The Gritty Details Of Designing And Running A Private Cloud
On today's Day Two Cloud we tackle the practical aspects of private cloud, including designing the infrastructure and creating policies before you start racking gear, and why thinking about services is...
View ArticleVMware After Gelsinger: Integrating Fiefdoms For A Post-Hypervisor World
VMware's next CEO has two tasks: to construct a narrative about VMware's role and value as a company in a post-hypervisor world, and to integrate its various fiefdoms into a cohesive set of products...
View ArticleDay Two Cloud 104: Cloud Is No Escape From Your Data Center Dumpster Fire
IT and business leaders need to be more nuanced in their approach to the cloud. On today's Day Two Cloud podcast, guest Melissa Palmer discusses why cloud hype is a problem for organizations, the need...
View ArticleHeavy Networking 586: Virtualizing And Accelerating 5G RAN With 3rd Gen...
Today's Heavy Networking, sponsored by Intel, dives into 5G, virtualization, and AI. Intel's 3rd Gen Xeon processors can support a variety of use cases, including running virtualized network functions...
View ArticleMarvell’s OCTEON 10 Challenges All Comers For DPU Supremacy
This article was originally posted on the Packet Pushers Ignition site on July 9, 2021. The ascendance of Software Defined Networking (SDN) has catalyzed a renaissance in specialized hardware designed...
View ArticleFull Stack Journey 062: Advice And Recommendations For Tech Learners
The Full Stack Journey is back for 2022, and kicking off the year Scott shares recommendations for learning new technologies based on his own career experiences and the technology transitions he's...
View ArticleHuman Challenges Of Network Virtualization – Lessons Learned From NFV Projects
For the last four years I’ve worked on Network Functions Virtualization (NFV) projects at a couple of European Cloud Service Providers (CSPs). The implementation of these projects has proven to be...
View ArticleHeavy Networking 668: Inside A Virtualization Consultant’s Home Lab
On Heavy Networking today we look at a home lab running VMware products including NSX, as well as infrastructure-as-code products Terraform, Packer, and Ansible. These use cases create a different...
View ArticleXcitium’s Endpoint Virtual Jail Aims To Lock Up Mystery Malware
Xcitium is an Endpoint Detection and Response (EDR) vendor that sells client software that uses multiple methods to protect endpoints. Methods include anti-virus, a host firewall, a Host Intrusion...
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