Digging deep into Unified Communications from Spain.
Header

As I commented in my previous post, I am planning the implementation of big unified communications lab environment based on the Cisco and Microsoft UC portfolios.

The goal of this personal project is to show everyone how unified communications connect us with people and information, helping us to improve our collaboration experiences. I will try to show you all the features available and how to implement it following the design rules and best practices provided by each vendor with the methods and tools that help us to build  simple and scalable solutions for large environments, despite the nature of my lab.

As depicted below in the diagram the idea is to have two sites, one located at Madrid, Spain and the other one located at New York, USA. Both sites will have their own and independent solutions to see how to interoperate different platforms with the same or different vendors.

UC-Lab

Following a high summary of the versions that I will use at each site:

CompanySP, Madrid Site

  • – Cisco UC based on 9.1
  • – Lync 2013
  • – Cisco Gateway with an E1 PRI and a ISP SIP Trunk
  • –  Exchange Server 2010
  • – Active Directory
  • – Cisco SME

CompanyUS, NY Site

  • – Cisco UC based on 8.6
  • – Lync 2010
  • – Cisco Gateway with an E1 PRI and a ISP SIP Trunk
  • – Exchange Server 2010
  • – Active Directory
  • – Cisco Webex Meetings Server

I will deploy the platform over virtual machines with two host VMware ESXi 5.1, both managed by a vCenter 5.1. My hardware is limited so I will try to allocate the resources as efficiently as possible.

More details and requirements coming!

Changing the IP for a CUCM cluster

June 18th, 2012 | Posted by Jaime Diez in Cisco - (0 Comments)

Lately I have had to change the network parameters for a CUCM cluster, this is not a day-to-day task, because of that I going to show you how to change it to avoid any major issue.

As a network parameter, it should be done during a time window out of business hours. As you would do with any other operation, verify the proper operation of the CUCM cluster before make any change, make a backup and have a rollback plan to use in case that something goes wrong.

You will find a guide from Cisco which is a good point to start and covers all the process but I like to have always my own documentation in addition to other, to have my own notes. It helps me to remember important details and issues that I have had, the purpose is to have the whole experience write down.

Let’s start the task, it is very important to follow this order to avoid any error. You will have to request a new license file re-issued  by Cisco to use it after the change. Start making all the changes on the publisher and after that with the subscribers.
Continue reading…

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.

Continue reading…