Author Archives: Dominik

About Dominik

Network problem solver

How to get Started with OMD and Check_MK

Posted on 01/15/2015 by Dominik

In the past it was in some cases a hard task to setup a monitoring suite and get it running.  Commercial and open source tools where not very user friendly and often lagging a good usebility. I remeber the early … Continue reading →

Posted in All, Howto, Monitoring | 9 Comments

SPB Basic configuration with Avaya switches

Posted on 01/13/2015 by Dominik

I was really impressed as I started my first SPB configuration on an Avaya switch, I had a 200 lines MPLS like configuration in mind and was surprised that you do not need a lot of commands to setup SPB. … Continue reading →

Posted in All, Avaya, Howto | 9 Comments

SPB an Overview

Posted on 01/12/2015 by Dominik

This will be the first blogpost of a series of posts about SPB. We start with an general overview. At the moment there are big changes in the network industry. After using protocols like spanning tree for over a decade … Continue reading →

Posted in All, Avaya, Blog | Tagged | 7 Comments

Dusty Routers

Posted on 01/08/2015 by Dominik

The best enviroment for network gear is a cooled and clean rack. In the real world it is many times the opposit warm and dusty. Many vendors advise you to clean the fans on regular bases to prevent poblems with the air … Continue reading →

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Network Monitoring #1

Posted on 01/06/2015 by Dominik

This will be the first post of a series of blog posts about network monitoring. Most people that work in IT know the situation when you get a call and someone is blaming you that nothing works and you have … Continue reading →

Posted in All, Blog, Monitoring | Tagged | 1 Comment

Air Console the cable free serial adapter

Posted on 01/05/2015 by Dominik

Most networkers even when they are only do consulting have in their pocket for travelling at least one RS232 serial adapter. Back in the days I had a big pack with many different adapters, crossover serial cables und gender changers … Continue reading →

Posted in All | 2 Comments

DHCP Relay Problem with Avaya ERS5000 SW 6.3

Posted on 01/05/2015 by Dominik

I recently stumbled upon a problem with the Avaya ERS5000 switches. The problem was quiet odd , so I would like to share my expierence and hopefully help somone with troubleshooting this problem. On a given network where a ERS5000 … Continue reading →

Posted in All, Avaya | Tagged | 2 Comments

How to Upgrade an Avaya VSP4000

Posted on 01/04/2015 by Dominik

Here is a short overview how to upgrade a VSP4000. The procedure is the same for the VSP8000. First you have to Uplooad the needed files, wich I do here via USB: copy /usb/VSP4K.4.0.0.2.tgz /intflash/VSP4K.4.0.0.2.tgz copy /usb/VSP4K.4.0.0.2_modules.tgz /intflash/VSP4K.4.0.0.2_modules.tgz When you … Continue reading →

Posted in All, Avaya, Howto | Tagged , | 8 Comments