PQ Show 24 – Cisco OTV Deep Dive Part 1

New voices gather in the Packet Pushers virtual boardroom for a discussion of Cisco’s layer 2 extension technology, Overlay Transport Virtualization (OTV). Ethan Banks hosts a recording of about two hours worth of content about OTV; this show is the first hour. Joining Ethan are first-time guests Jamie Caesar, Colby Glass and Ken Matlock. Jamie, […]

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Ethan Banks

Co-host at Packet Pushers

Ethan Banks, CCIE #20655, has been managing networks for higher ed, government, financials and high tech since 1995. Ethan co-hosts the Packet Pushers Podcast, which has seen over 3M downloads and reaches over 10K listeners. With whatever time is left, Ethan writes for fun & profit, studies for certifications, and enjoys science fiction. @ecbanks

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The post PQ Show 24 – Cisco OTV Deep Dive Part 1 appeared first on Packet Pushers Podcast and was written by Ethan Banks.

Have Respect For The Work You Do

The other day I was called in to assist with issue that had been open for a few days. The primary reason for my involvement was to confirm network connectivity was permitted as required by a recently installed application. After an initial look, it was apparent that the application wasn’t even trying to access network […]

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Paul Stewart

Paul is a Network and Security Engineer, Trainer and Blogger who enjoys understanding how things really work. With nearly 15 years of experience in the technology industry, Paul has helped many organizations build, maintain and secure their networks and systems. Paul also writes technical content at PacketU.

The post Have Respect For The Work You Do appeared first on Packet Pushers Podcast and was written by Paul Stewart.

Are Forensics Tools the New IDS?

For the past few years, many people have been suggesting that the days of IDS (intrusion detection system) are numbered. When IDS was first launched, it was seen as an answer to a lot of network security problems: deep packet inspection with constant monitoring and alerts. However, one of the biggest problems with IDS is […]

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Darragh Delaney

Technical Director at NetFort

Darragh Delaney is head of technical services at NetFort. As Director of Technical Services and Customer Support, he interacts on a daily basis with NetFort customers and is responsible for the delivery of a high quality technical and customer support service.

Darragh has extensive experience in the IT industry, having previously worked for O2 and Tyco. His User and Network Forensics blog. for Computer World focuses his experiences of network management and IT security in the real world. In his current role Darragh is regularly on site with network administrators and managers and this blog is a window into the real world of keeping networks running and data assets secure.

He shares network security and management best practices on the NetFort blog. Follow Darragh on Twitter @darraghdelaney and NetFort Technologies @netfort. You can also contact him Continue reading

Monitoring VRFs on IOS-XR

Lately I have been investigating how to monitor BGP peering session via SNMP instead of traps/syslog messages and I found out that this feature is not documented properly for IOS XR. Finally I managed to get it working, so I thought that it would be worth sharing with the community. In our example, we have […]

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David Barroso

Networking Engineer focused mainly in the DataCenter. As an engineer at a large ISP he has to deal with large multitenant networks, DataCenter Interconnections, large MSTP regions, BGP and all that stuff that's scary to normal people.

Linkedin: http://www.linkedin.com/in/dbarrosop
Twitter: @dbarrosop

The post Monitoring VRFs on IOS-XR appeared first on Packet Pushers Podcast and was written by David Barroso.

Centec V330: My Kind of OpenFlow Switch

This is my third and probably last installment of an ongoing story about our quest for OpenFlow 1.0 capable switches with a specific requirement - the capability to modify L3 destination addresses. The background of why Sakura Internet needs such switches for the purpose of DDoS attack mitigation is explained in my first article, along with […]

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Tamihiro Yuzawa

Tamihiro Yuzawa is a network engineer at Sakura Internet, one of Japan's major data center service providers. Before he joined Sakura in 2007, he spent five years at a busy CRM service provider. Both companies have allowed him to stay mostly within the intersection of these circles, and he is pretty much determined to remain in a serious relationship with both Dev and Ops.

The post Centec V330: My Kind of OpenFlow Switch appeared first on Packet Pushers Podcast and was written by Tamihiro Yuzawa.

Adding Markdown support to your WordPress Blog

Continuning on this week's theme of Markdown, I'll be explaining how to add Markdown to your blog in 3 easy steps.

Step 1 - Install the WP-Markdown plugin

From your Wordpress dashboard, head over to the Plugins tab and click Add New. Search for "WP-Markdown" and install

Step 2 - Enable Markdown for specific pages

Once your plugin has been installed, head on down to Settings > Writing and scroll to the Markdown section pictured below.

Enable Markdown wherever you like, but I'd recommend pages and posts

WARNING: Enabling Markdown will affect your existing posts/pages. I noticed that while my posts didn't look any different on the outside, behind the scenes they were a mess and required a little trying up.

Step 3 - Try it out

Create a new post or page and practice your Markdown-Fu. Not sure where to start? Here's an example

# This is a first level heading

Here is some body text

## Second level of heading here
### And a Third
#### And so on and so forth

- Now some bullets
- Hopefully you are getting the hang of this now
- It's pretty easy

> Blockquotes are easy with Markdown  Continue reading

Adding Markdown support to your WordPress Blog

Continuning on this week's theme of Markdown, I'll be explaining how to add Markdown to your blog in 3 easy steps.

Cisco UCS ASCII Art

[Code] PowerTool: PowerOnUCSBlades

[Code] PowerTool: PowerOnUCSBlades

Cisco UCS ASCII Art

Adding Markdown support to your WordPress Blog

Continuing on this week's theme of Markdown, I'll be explaining how to add Markdown to your blog in 3 easy steps.

Why I switched from MultiMarkdown to Pandoc

For the last 6 months I've been using Markdown where I can. Since embarking on the path towards a more Agile approach to writing, it has been necessary to use Markdown more and more. This has led me towards using Pandoc Markdown rather than MultMarkdown as my dialect of choice and I hope to explain why.

So what's so good about Markdown?

If you haven't used Markdown already, you might be wondering what the fuss is about. Basically it is a way of writing markup in an easy-to-read, easy-to-write fashion. It decouples the act of writing from formatting/layout so the same source text can be used to produce multiple formats.

Barriers to Markdown adoption

So what are the barriers to Markdown adoption? Personally I have found only two.

While I use Markdown, the rest of the company uses Microsoft Word - All of our corporate templates are in MS Word format - Neither Markdown or MultiMarkdown reliably export to MS Word format (yes MMD does ODF, but it doesn't handle images well)

The next issue is that Markdown to PDF conversion uses LaTeX. Unfortunately I neither have the time nor inclination to learn LaTeX. While it can be a powerful Continue reading

Why I switched from MultiMarkdown to Pandoc

For the last 6 months I've been using Markdown where I can. Since embarking on the path towards a more Agile approach to writing, it has been necessary to use Markdown more and more. This has led me towards using Pandoc Markdown rather than MultMarkdown as my dialect of choice and I hope to explain why.

Show 150 – Self Congratulations, CLUS and Career Advice

Thanks to everyone who supports Packet Pushers and supports us. We could not do this without you. Greg & Ethan go solo to talk a little about 150 weekly shows  Cisco Live US 2013 – Tweet UP – http://networkingnerd.net/2013/05/23/cisco-live–2013-tweetup/ Greg has Published an eBook Greg wrote an eBook on blogging – The Arse First Guide to Technical […]

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Greg Ferro

Greg Ferro is a Network Engineer/Architect, mostly focussed on Data Centre, Security Infrastructure, and recently Virtualization. He has over 20 years in IT, in wide range of employers working as a freelance consultant including Finance, Service Providers and Online Companies. He is CCIE#6920 and has a few ideas about the world, but not enough to really count.

He is a host on the Packet Pushers Podcast, blogger at EtherealMind.com and on Twitter @etherealmind and Google Plus.

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The post Show 150 – Self Congratulations, CLUS and Career Advice appeared first on Packet Pushers Podcast and was written by Greg Ferro.

Using Pandoc with Marked app

I recently changed from MultiMarkdown to Pandoc. But I still wanted to use Marked app to preview my work…

Thankfully the author of Marked allowed for such an eventuality with the "Custom Processor" option.

To use this tick the box, put in your fully qualified path to pandoc and add your arguments and bob is your proverbial uncle. The quickest way to find out where pandoc is installed on your Mac is to type the following from the terminal.

which pandoc

@dave_tucker

Using Pandoc with Marked app

I recently changed from MultiMarkdown to Pandoc. But I still wanted to use Marked app to preview my work…

Increase the Awesome

I’m sitting at my desk right now (9pm Sydney time), waiting for my 3am change window that I need to be onsite at the data centre for. Now I am supposed to be working on a presentation I am giving on Friday entitled “Automation, Orchestration, and SDN”. I’ve been given about 20 minutes to cover these topics, so I’m spending quite a bit of time trying to get the right mix of content without geeking out too far for the intended audience (C-levels, project managers and lead engineers).

While trying to get the mix just right, my mind keeps going back to a comment I made last week on the “APAC Virtualization Roundtable” podcast (Episode 74 “SDN & Virtualisation from a Network Engineers perspective”)…

“Increase the awesome, remove the mundane!”

While initially sounding facetious, this comment is kind of where my brain has been going of late when trying to work out where I should focus my energies. While I’m thinking of ways to apply this idea to many aspects of my life, I would like to present them in the context of the presentation I am about to give (and the same context to which Continue reading

DCCP – Datagram Congestion Control Protocol

How does the internet work - We know what is networking

DCCP transport layer protocol is used to control the datagram congestion. It provides an excellent procedure to stop the internet fall down, if it is caused by the congestion. In fact, this protocol is a brilliant competitor to be used as a substitute of UDP protocol. DCCP account DCCP congestion control trait by means of a reliable acknowledgments delivery (in form […]

DCCP – Datagram Congestion Control Protocol

Agile Writing – Week 1 – Getting Started with JIRA, GreenHopper and Markdown

I finished reading The Phoenix Project at the beginning of May and it has had a profound affect on my outlook towards work. Not only was this a great read, but while I was reading I kept getting ideas on how I could implement the three ways at work. This diary documents the transition to an Agile Writing workflow.

Why bother?

Before I start covering the how, I thought I would spend a little time on the why. Agile is something that is usually associated with Software Development and you might be thinking "What has this got to do with writing?". I write technical documentation for a living, but I've been a long time have-a-go programmer and I recently had the pleasure of working on a professional software project. One of the things that amazed me was how Agile mad them so much more efficient.

• Scope creep was eliminated through issue and requirements management
• Many application releases gets product in the customer's hands sooner
• Team maintains a constant velocity and is always striving to be more efficient
• Everything that can be automated, is.

It is actually quite easy to draw parallels between application development and writing technical documentation. A Continue reading