Digging deep into Unified Communications from Spain.
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Nowadays any way to save some time it is always welcome, indeed if it is a repetitive task. Because of that, I have written a script based on Expect, which “talks” with other interactive programs through a script. In my case I have used it with a SSH connection against the CUCM CLI.

The Expect package, is available just for Linux. I am using a Windows machine where I have other admin tools, so I installed it together with Cygwin.

The script that I want to share with you, connect us to the CUCM CLI and it executes the commands that we have implemented. For instance, with the script below I am able to restart one node just typing a user, a password and an IP. You can do whatever you can imagine.

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As promised in previous entries, I am going to explain to you my Cisco lab environment. It could be useful for hundred of purposes, to prepare for your studies, to practise for your CCNP Voice or CCIE Voice certification or just to make tests. Despite the fact that it covers a wide range of topics in the CCIE Voice lab, it doesn’t follow the common topology with three sites.

I built it bearing in mind the CCIE Voice lab, which I would like to get in the future, but since I noticed that the new lab version is coming and that I wasn’t able to dedicate the require time needed in the short term (2-3 months), I decided to stop buying new devices and see what  will happen, however all these things are time consuming!

First of all, below you can find the network diagram which I have deployed.

Cisco Voice Environment

Hardware list

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I can say that my ESXi server is the heart of my lab, so before I got everything, I was doing some research to get the best deal. The easiest way to get it built, is to follow the VMware hardware guide to get a supported server, but it means a higher price and maybe, pointless features for our purpose like redundant PSUs. On the other hand, you will, unlike me, save some headaches with the supported path. I like challenges!

In my case, I wanted something small with support for VM Direct Path and of course, all the hardware embedded on the motherboard. Based on those prerequisites, I found the Asrock Z68 Pro3-M, a micro-ATX form factor motherboard.

Hardware list:

– Motherboard: Asrock Z68 Pro3-M (Graphics and NIC on-board)

– CPU: Intel Core i5-2500 (note that is the non-K version, to take advantage of the virtualization features)

– RAM: 4x8Gb G.Skill Ares

– Case: Cooler Master Elite 342 MicroATX

– PSU: Tacens Radix V 450W

– HD: 1x Samsung SSD 830 128Gb – 4x2TB Seagate ST2000DL003

– Extra: Intel pci NIC.

Considerations

I boot ESXi 5.0 from a USB pen drive and without doing anything, everything is recognized, the NIC Realtek RTL8111E included.

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A brief review of my home lab

May 9th, 2012 | Posted by Jaime Diez in Cisco | Lab | Lync - (0 Comments)

In this first entry, I’m going to show you the curent layout of my lab, I say current because I’m always introducing new elements and making changes. My goal here is to have (almost) the same things that you can find in the real world and in most of  enterprise environments.

Despite the constant changes, the network is always the same with a WAN, LAN and DMZ well-defined. Let’s show you a picture in general.

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