JNCIP-SP: THE ULTIMATE RESOURCE FOR JUNIPER’S PROFESSIONAL SERVICE PROVIDER CERT
If you’re thinking about taking Juniper’s excellent Service Provider exam, give this a read – I’ve hooked you up with a ton of useful links!
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Author: Chris
LESSONS IN JUNOS TROUBLESHOOTING: FIXING A LAN WITH A WEIRD PROBLEM
Regular readers of this blog probably see me as an extremely clever, flawless hunk who knows a lot, never makes mistakes, and is traditionally handsome but with a modern style. And of course, you’re not wrong. Except, here’s the twist: you’re dead wrong.
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MOVING LSPs BETWEEN INET.3 and INET.0 ON A JUNIPER ROUTER
This is a post about the different ways, and reasons why, we might move prefixes between the inet.3 and inet.0 tables on a Juniper router. You know: like George Clooney does in his spare time. Probably. Don’t look that up.
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JUNOS ROUTERS: WHAT DOES THE INET.3 TABLE ACTUALLY DO?
In this first of a two-part post, I’m going to take you on a magical journey. And by “take you on a magical journey” I mean “teach you what the inet.3 table does on a Juniper router.” Which is basically the same thing as a magical journey, right?
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JUNOS RPM: TESTING YOUR JUNIPER NETWORK WITH REAL-TIME PERFORMANCE MONITORS
Network engineers often find they need a way to test something, and then take some action if that test fails. Well, you can do these tests oh-so-easily in Junos with a thing called Real-Time Performance Monitoring. RPM is what “other vendors” might call IP SLA. How do they work? Good question, Andrew! Let’s find out.
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USING WILDCARD MASKS TO FILTER ODD OR EVEN NUMBERED IP ADDRESSES: JUNIPER JUNOS & CISCO IOS
Imagine a user who says they’re only able to access even-numbered IPs in a destination subnet. “Help!”, they say. “I can’t leave the office until this is fixed, and I need to leave now because my seven large sons require their tri-daily feed of protein shakes. They will whither and die unless I nourish them immediately. The fate of my powerful sons is in your hands, and yours alone.” This exact problem came in to us recently. Well, apart from the bit about the large sons.
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JUNOS: IS-IS STUDY NOTES, PART 3 – FOR JUNIPER’S JNCIS-SP and JNCIS-ENT EXAMS
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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JUNOS: IS-IS STUDY NOTES, PART 2 – FOR JUNIPER’S JNCIS-SP and JNCIS-ENT EXAMS
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
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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JUNOS: AGGREGATE ROUTES VS GENERATE ROUTES – HOW TO SUMMARISE ON JUNIPER ROUTERS
In the 90s, the big fashion was Tamagotchis. In 2017 it was fidget spinners. And of course, in 2018 there’s only one trend on everyone’s lips: route summarisation. In Junos there’s three ways to summarise routes. Want to know what they are? Well gosh damn, you’ve come to the right place!
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