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JUNOS FOR IOS ENGINEERS: HOW DO YOU CONFIGURE A JUNOS ROUTER?

May 4, 2020July 6, 2020 Chris 2569 Views 2 Comments

In Part 2 of this series we look at how you make configuration changes in Junos – and how you can very easily scrap your changes without doing any damage o your network. Very clean!

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cloud contrail jncia juniper routing sdn 

JNCIA-CLOUD: THE ULTIMATE RESOURCE FOR JUNIPER’S SDN CERTIFICATION

November 26, 2018November 24, 2019 Chris 15879 Views 24 Comments

(DISCLAIMER: This blog post was written at the end of 2018, and was accurate to the JNCIA-Cloud syllabus at the

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isis jncia jncis juniper junos routing troubleshooting 

JUNOS: IS-IS STUDY NOTES, PART 3 – FOR JUNIPER’S JNCIS-SP and JNCIS-ENT EXAMS

July 6, 2018October 20, 2018 Chris 20387 Views 3 Comments

This is the third and final part of my whistle-stop tour of IS-IS, for people studying for their Juniper JNCIS-SP and JNCIS-ENT exams. In this post, we learn how to troubleshoot IS-IS. Are you wearing your safety hat? Then, let’s go!

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isis jncia jncis juniper junos routing 

JUNOS: IS-IS STUDY NOTES, PART 2 – FOR JUNIPER’S JNCIS-SP and JNCIS-ENT EXAMS

July 6, 2018October 20, 2018 Chris 5786 Views 2 Comments

In Part 2 we take a deeper-dive into IS-IS. We do packet captures of LSAs, we look at the metrics, the Designated Intermediate-System, and we even explore our feelings together, so that we can finally find inner-peace with ourselves. Great!!!

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JUNOS: IS-IS STUDY NOTES, PART 1 – FOR JUNIPER’S JNCIS-SP and JNCIS-ENT EXAMS

July 6, 2018October 20, 2018 Chris 11335 Views 6 Comments

Here’s the first of our three-part beginners guide to IS-IS. We’ll compare it to OSPF; we’ll talk about Level 1 and Level 2; we’ll explain the bizarre addressing system; we’ll look at a basic config, and we’ll talk about why Googling for IS-IS is very different from Googling for ISIS.

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Hi!

I’m Chris, a network engineer, Juniper Ambassador and JNCIE-SP #2981. I’ve contributed towards a few books for Juniper in my time, and I have a few vendor certifications too, from Juniper, Cisco, Palo Alto and F5. But don’t mistake it for me actually knowing anything: I just do exams because I like a good pub quiz.

This is a blog of random knowledge I’ve acquired while studying for those sweet sweet network engineering certifications. There’s a big focus on Juniper in this blog, but sometimes I do other vendors too.

As I learn cool new stuff, I try to write it up with plenty of jokes, and a generous dollop of silliness, so that you’ll have as much fun learning about networking as I do.

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