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Author: Alex

QFX interface breakout

QFX interface breakout

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To configure a block of 40-Gigabit Ethernet (et) ports on QFX3500, QFX3600, QFX5100, EX4600 switches to operate as 10-Gigabit Ethernet ports, specify a port range and channel speed: [edit chassis fpc fpc-slot pic pic-slot] user@switch# set port-range port–range-low port-range-high channel-speed speed For example, to configure ports 0 through 3 on PIC 1 to operate as 10-Gigabit Ethernet ports: [edit chassis fpc 0 pic 1] user@switch# set port-range 0 3 channel-speed 10g To configure just one single port to…

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VCF

VCF

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Juniper QFX5100 Series book has pretty good coverage of VCF related topics, but I think VCF feature guide is better suited for lab preparation. Unfortunately I don’t have real QFX5100 gear, so my VCF study would be completely theoretical. But the good news are that all that complexity of VCF has nothing to do with end user, and to just configure it is a pretty simple task. Definitely no rocket science… VCF can be configured in two different ways: autoprovisioned and…

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Zero Touch Provisioning

Zero Touch Provisioning

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ZTP process is well explained in the Data Center Swithing cource (DCX) – read about it there if you can find this material. Especially the lab module for ZTP. Also there is fine free ZTP Day One book. The core part of ZTP process is the configuration of DHCP server, that looks something like this: set vendor-string = option vendor-class-identifier; option space ZTPDEMO; option ZTPDEMO.image-file-name code 0 = text; option ZTPDEMO.config-file-name code 1 = text; option ZTPDEMO.image-file-type code 2 = text;…

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Junos Space and NETCONF

Junos Space and NETCONF

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Next topic – Junos Space Management Platform. Fortunately I have some basic experience with this software, so I think there will be no difficulties executing two basic operations which are indicated in the lab exam topics – discovering devices and configuration management. Junos Space version is not specified in the exam blueprint, but I think it does not really matter for such basic tasks. If you are not familiar with this stuff, try to watch some videos on YouTube, for example this…

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On-box Scripts notes

On-box Scripts notes

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During my preparation for JNCIE-DC lab exam, I’ll post here my notes about exam topics. Firstly there will be just theory (excerpts from books and config/feature guides), and later on I plan to practice most important topics in my virtual lab. First topic – On-box Scripting. I don’t believe that there will be some complex tasks on this topic in the lab exam – I expect just really basic stuff. Definitely no hard programming skills required. So I think it wolud…

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JNCIE-DC Exam Objectives and useful links

JNCIE-DC Exam Objectives and useful links

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In this post I tried to collect all useful links to technical documentation that I plan to use during my study for JNCIE-DC lab attempt. This materials will be used primarily for repetition and more focused, deep-dive study of lab topics – should be used only after studying Juniper DC base materials from previous post. So, the complete JNCIE-DC exam blueprint: Management On-box Scripts                               –>…

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JNCIP-DC exam notes

JNCIP-DC exam notes

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Once again I’m convinced by my own experience that Juniper tests a lot more interesting and practical than Cisco ones (I’m recently passed CCIE R&S written to update my cert – such a horrible experience that I don’t want to even look at Cisco for another two years). Not so long ago I passed JNCIP-DC and would like to save some notes about this exam. First of all, materials from recommended courses – Data Center Switching (DCX) and Advanced Data Center…

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JNCIE-DC in about a month? Nice challenge!

JNCIE-DC in about a month? Nice challenge!

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After careful look at JNCIE-DC exam objectives, I finally decided to go for it. Planning to take the lab in August. Why so soon? It’s simple. I just really want 2-digit number 🙂 In truth, the deciding factor is the size of DC lab blueprint – not so many new areas to study for me (given that I’m only recently passed my JNCIE-SP lab and therefore pretty confident in my knowledge of BGP, MPLS and QoS areas). And I already has…

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Let’s start a new blog!

Let’s start a new blog!

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I starting this blog for saving my notes and thoughts about various network-related topics, that I stumbling upon during my journey towards becoming good (hopefully) network engineer. I hope this notes will be useful not only for me, but also for everybody interested in this area. Sorry in advance for my awkward “russian-english” style of writing. I hope it will become better as time goes by. I’m network engineer currently living in Moscow, Russia. I have some experience in various…

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