Migrating from WordPress to Pelican on PaaS – Part 1
I've been blogging with Wordpress for the last 5 years on and off. It has some great features and is very easy to use, but it's not for me. This series of posts documents my transition from Wordpress to Pelican.
Python bindings for the HP VAN SDN Controller
For the last 9 months, I've been silently working on a little pet project. It's finally ready to be released in to the wild and to be used by one and all for creating Python-based SDN Applications for the HP VAN SDN Controller.
Migrating from WordPress to Pelican on PaaS – Part 3
The final installment in this three part series. This covers installing Dokku and publishing your pelican blog to you new Docker-powere mini-Heroku.
CCIE Study Techniques
I get a lot of emails from people who read my blog asking my how I study. For most people they think I can tell them a magic formula, but the truth of the matter is that there isn’t one. You can also check out my Top 10 Study Tips You need to try all […]
The post CCIE Study Techniques appeared first on Roger Perkin - Networking Articles.
Migrating from WordPress to Pelican on PaaS – Part 1
I've been blogging with Wordpress for the last 5 years on and off. It has some great features and is very easy to use, but it's not for me. This series of posts documents my transition from Wordpress to Pelican.
Part 1: Motivation and Decisions
What's Wrong With Wordpress?
There are a few things about Wordpress that have been bothering me lately
- Performance
- Backup/Restore
- Comment Bots
- Portability
As with anything that relies on server-side scripting, there is performance hit when loading pages. I've been running my blog on a Linode 1024 VPS ($20 per month) and had found that I had to move from Apache to Nginx to get decent performance with Wordpress. Adding Caching to the equation with one of the many caching plugins available has also helped, but this is a rather complex solution. Another performance bottleneck is the database...
Wordpress requires a MySQL database in the back end. I am not a big MySQL fan and would prefer to run Postgres or MariaDB but this isn't officially supported in Wordpress right now. Not only is a performance bottleneck, but it is also another thing that needs to be backed up.
The Backup/Restore capabilities of Wordpress are decent, Continue reading
Migrating from WordPress to Pelican on PaaS – Part 1
I've been blogging with Wordpress for the last 5 years on and off. It has some great features and is very easy to use, but it's not for me. This series of posts documents my transition from Wordpress to Pelican.
WLPC Conference Day 1 Highlights
I'm here at the WLAN Professionals Conference (#WLPC if you're following on Twitter). This is the first of what hopefully will turn into an annual conference dedicated to the Wi-Fi industry. But this conference is a bit different than what you might think a typical conference is. First and foremost, it's got a grassroots, peer-to-peer focus. It's engineers talking about Wi-Fi and gathering for discussion. It's not overly promoted by vendors or full of presentations with marketing drivel. Instead, it's just people who are passionate about this technology coming together to share their knowledge and experiences with each other to better everyone! What a great concept!There are over 100+ attendees, many of whom are also presenters. I hear there was more demand than seats available, so next year Keith Parsons, organizer of the event, should have a solid baseline to grow the conference and allow more of you (the community) to attend and get involved. What's also great is that many of the presentations have been interactive, with great questions and quality discussion fostering the entire group to share information. The focus on the technology instead of the marketing that so often surrounds the technology and products Continue reading
CEF Secret Attributes, Part 3
In Part 1 we saw we can mark prefixes in CEF with certain attributes that might give us interesting things to play with. In Part 2 we found we could track traffic patterns with the traffic_index tag. We will now turn our attention to the qos-group parameters. Let’s say we would like four categories of […]
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The post CEF Secret Attributes, Part 3 appeared first on Packet Pushers Podcast and was written by Dan Massameno.
Data Center Knowledge Article: SDN Management Challenges
This item has no description. Follow link to view item.Wired Blog Article: Revamping Network Management for SDN
This item has no description. Follow link to view item.Will 802.11ac Stab You in the Back(haul)?
Stressing about the new 802.11ac standard seems to be the industry’s new pastime. Now that Wave-1 of 802.11ac is here with vendors promising 1.3 Gbps in 5 GHz, 1.75 Gbps aggregate per AP, and world peace, suddenly the industry has...Packet Design to exhibit at Cisco Connect Toronto
Packet Design will be exhibiting at Cisco Connect, April 15-16 in Toronto.
Register to attend the event here:
http://www.cisco.com/web/CA/ciscoconnect/2014/index.html
interoperability testing
Recently, one customer prospect asked the Contrail team to build a POC lab using only non-Juniper network gear. The team managed to find a cisco ASR 900 as a loaner device and we had to make that device work as a data-center gateway.
Typically we use the Juniper MX as a the data-center gateway in our clusters. When you use an MX, the system somehow feels dated. It does feel like a 10+ year old design, which it is. But it is incredibly solid and feature rich. So one ends up accepting that it feels a bit dated as a tradeoff to its “swiss army knife” powers.
The cisco ASR 900 belongs to the 1k family and runs IOS as a user space process on Linux. I’d not used IOS in 3 years. My first impression was: this artifact belongs to the Computer History Museum. In fact the CHM (which is a fantastic museum) has several pieces in exhibition that are more recent that 1984, the year IOS debuted.
And IOS (even the version 15 in this loaner box) is a history trip. You get to see a routing table that precedes classes internet addresses, the config still outputs “bgp Continue reading
Leveraging Python on Network Devices to Monitor Interfaces in Realtime
In a recent post, I wrote about some Python work I was testing on the Nexus 3000. The end conclusion was that open Linux platforms will offer more flexibility --- for the consumer of the technology, ultimately the customer. In this post, we’ll take a look at an example that integrates Python with the native Linux operating system.
In the context of networking, the question often arises, what does having access to Linux really gain you? For one, as you can see from my last post and you’ll see in this one, for native scripting within bash and Python is of extreme value in itself, not to mention you’d also have the ability to load any piece of software you want to that is compatible with Linux (think about tools, mgmt/monitoring platforms, etc.).
Okay, so you’d have the ability to use Python on a network switch. So what? What about running onboard analytics on the switch? What about sending the exact data you need, the data you use to troubleshoot, the data part of your operational workflow, directly upstream to a head end server, or just simply to an existing syslog Continue reading
Okay, so you’d have the ability to use Python on a network switch. So what? What about running onboard analytics on the switch? What about sending the exact data you need, the data you use to troubleshoot, the data part of your operational workflow, directly upstream to a head end server, or just simply to an existing syslog Continue reading
Hardware – Equalization and Pre-emphasis
Before we look at equalization and pre-emphasis, we should examine some fundamentals of waves and signals. A perfect square wave is a really useful way of representing a waveform in the time-domain, but it’s not the only way of looking at … Continue reading
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