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Sep 20

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

Posted on 20 September 2015 by Romain Legrand

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 … Continue reading →

Posted in CCIE Service Provider, Cisco, IOS, IOS-XR, ISIS, Technology | Leave a reply
Feb 26

LISP – IPv6 Transport

Posted on 26 February 2015 by Romain Legrand

Adding IPv6 In this new scenario we take the same topology but we add IPv6 on it and demonstrate how LISP can be used also for IPv6. LISP would obviously work if we were to implement a full dual stack … Continue reading →

Posted in CCIE Service Provider, Cisco, LISP | Leave a reply
Feb 19

LISP – Redundancy and Load Balancing

Posted on 19 February 2015 by Romain Legrand

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 … Continue reading →

Posted in CCIE Service Provider, Cisco, LISP | Leave a reply
Jan 24

LISP – Introduction to LISP

Posted on 24 January 2015 by Romain Legrand

What is LISP ? LISP stands for Locator/ID Separation Protocol. This term “Separation Protocol” means that the identifier of the host and the location of a host is now decoupled (hence the separation) compared to the common behaviour where the … Continue reading →

Posted in Cisco, IOS, LISP, Technology | 1 Reply
Nov 27

Passed CCIE Datacenter

Posted on 27 November 2014 by Romain Legrand

Finally I passed the CCIE Datacenter lab on Sunday 23th November. This has been a very interesting journey and there is still a lot to learn !

Posted in Non classé | 2 Replies
Oct 05

MTU–Nexus 7000

Posted on 5 October 2014 by Romain Legrand

Introduction What I often hear about MTU on Nexus 7000 and Nexus in general is that nothing needs to be done and Nexus devices are ready for jumbo MTU right out of the box. The truth is not that simple … Continue reading →

Posted in CCIE Datacenter, NX-OS | Leave a reply
Jun 14

UCS – Server Pools

Posted on 14 June 2014 by Romain Legrand

What is a Server Pool ? In UCS a Server Pool is a container that can be used to group one of more blades together. The purpose of this is to be able to automatically bind service profiles (or to … Continue reading →

Posted in CCIE Datacenter, UCS | 1 Reply
Jun 09

Introduction to Cisco VSS

Posted on 9 June 2014 by Romain Legrand

Overview Before going into the details of the configuration, let’s sum up what VSS is about. VSS stands for Virtual Switching System, it’s a virtualization technology that can be used on some platforms in order to merge the control plane … Continue reading →

Posted in Cisco, IOS, IOS-XE | Leave a reply
Jun 08

Back in business !

Posted on 8 June 2014 by Romain Legrand

Long time with no post here ! I was working to get my Huawei HCDP certification, just one exam missing now and also still working on the CCIE Datacenter. In the meantime I have been catched to work with the … Continue reading →

Posted in Non classé | Leave a reply
Feb 17

BGP on Huawei–Route Reflectors

Posted on 17 February 2014 by admin

What is Route Reflector ? Route Reflector are used to solve the issue introduced by IBGP loop prevention. The loop prevention rule states that routes learn from and IBGP neighbor will not be advertised to other IBGP neighbors. So if … Continue reading →

Posted in BGP, Huawei, Technology | Leave a reply
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