MadNetworks Technical Blog

Networking Stuff




Basic ISIS on IOS and IOS-XR (Part 1)

Posted on

Overview and topology This post is a review of basic ISIS on IOS and IOS-XR. It reviews how to configure basic settings in order to get ISIS working. The topology used is as follow : Enabling ISIS The very first thing to do is to enable the ISIS process. The process is similar on IOS …

LISP – Redundancy and Load Balancing

Posted on

LISP Review On the last blogpost about LISP, we have configured LISP to demonstrates how it works as an overlay technology. On the previous topology we had dual homed CE devices (CE1, CE2, and CE3) but we have only configured LISP to operate on one interface. The database-mapping indicates which local prefixes we want to advertise …

Passed CCIE Datacenter Written and HP0-Y32

Posted on

No posts since some time now, I have been busy working for the CCIE Written Datacenter and then the HP0-Y32 exam which is the first step to HP MASE certification. A quick review on the CCIE DC Written : It’s a very strange exam where there is some very easy question for somebody who already …

NX-OS Management–CLI Variables

Posted on

Just discover this while going through the Cisco configuration guide “NX Fundamentals Configuration Guide” under the Chapter “Understanding the Command Line” at section “Configuring CLI Variables”. What you can do is define persistent or non persistent variable to work with ! The persistent aspect depends if you configure the variable at EXEC or CONFIG modes. …

Nexus 1000v Installation with Layer 3 control

Posted on

Nexus 1000v components The Nexus 1000v is a software switch running Cisco NX-OS that is destined to be integrated with VMWare vCenter. The goal is to propose a virtual switch that can span across multiple ESX hosts so that networking teams can work on it as it if were a regular switch. Technically, the Nexus …