Category Archives: All

Networking Field Day #NFD9

Posted on 02/09/2015 by Dominik

Im looking forward to the next Networking Field Day that is starting next week. Stephen Forskett @SFoskett and the crew from Gestalt IT has thrown thogheter an imopressiv lineup. I really like the concept of the Tech Field Day events. The vendors … Continue reading →

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Logging and Beyond

Posted on 01/29/2015 by Dominik

I was burned many times after a faulty box has rebooted and all stored logs where lost.  For troubleshooting it is very important to have all relevant log data directly accessable. To have logs only stored on the productive devices … Continue reading →

Posted in All, Monitoring | 3 Comments

Network speed and VM NICs

Posted on 01/26/2015 by Dominik

I stumbled upon an interesting fact about the speed of VM NICs. In general I suggest that the maximum bandwith that a NIC can send or receive is limited on the interface speed. So an Intel Pro/1000 Interface NIC on … Continue reading →

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Connectivity Fault Management for SPBM

Posted on 01/21/2015 by Dominik

IEEE 802.1ag CFM or Connectivity Fault Management is very popular in the provider space to troubleshoot MPLS networks. Avaya has implemented CFM for all their switches that runs SPBM. We are facing here the same problem that we have in … Continue reading →

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8 Rules for Network Autobahn Engineers

Posted on 01/20/2015 by Dominik

To run a network can be a hard challenge sometimes. It helps a lot when you stick to some generell rules and apply these to all the work and devices for that you are responsible. I have seen networks that … Continue reading →

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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