FirstDigest » Hardware http://www.firstdigest.com Technical blog Sun, 22 Apr 2012 13:53:54 +0000 en hourly 1 http://wordpress.org/?v= Fiber Optic basics http://www.firstdigest.com/2012/03/fiber-optic-basics/?utm_source=rss&utm_medium=rss&utm_campaign=fiber-optic-basics http://www.firstdigest.com/2012/03/fiber-optic-basics/#comments Thu, 01 Mar 2012 21:50:55 +0000 Calin http://www.firstdigest.com/?p=3604 I think all network engineers touched, if not used / patched, as least one time a fiber optic patch cord. As a network engineer you might not necessarily need to understand HOW fiber optic is working. It’s there and it’s working. You just need to plug the patch cord and that that’s it.

Anyway, for [...]]]> http://www.firstdigest.com/2012/03/fiber-optic-basics/feed/ 0 Would you do such things to an ISR 819? http://www.firstdigest.com/2011/09/would-you-do-such-things-to-an-isr-819/?utm_source=rss&utm_medium=rss&utm_campaign=would-you-do-such-things-to-an-isr-819 http://www.firstdigest.com/2011/09/would-you-do-such-things-to-an-isr-819/#comments Fri, 09 Sep 2011 10:03:41 +0000 Calin http://www.firstdigest.com/?p=3232 Lucky there is a big disclaimer at the beginning of this video. Otherwise I would be tempted to test such things and then plug it in to see if it still start (at least) and run.

It’s a nice commercial from Cisco, but to be honest I feel bad for this poor device:

http://www.firstdigest.com/2011/09/would-you-do-such-things-to-an-isr-819/feed/ 0 How to connect Vyatta to Cisco using VirtualBox and GNS3 http://www.firstdigest.com/2010/08/connect-vyatta-to-cisco-using-virtualbox-gns3/?utm_source=rss&utm_medium=rss&utm_campaign=connect-vyatta-to-cisco-using-virtualbox-gns3 http://www.firstdigest.com/2010/08/connect-vyatta-to-cisco-using-virtualbox-gns3/#comments Tue, 17 Aug 2010 10:40:28 +0000 Calin http://www.firstdigest.com/?p=2836 “Vyatta is  a software-based, open-source, network operating system that is portable to standard x86 hardware as well as common virtualization and cloud computing platforms. By deploying Vyatta, users benefit from a flexible enterprise-class routing and security feature set capable of scaling from DSL to 20Gbps performance at a fraction of the cost [...]]]> http://www.firstdigest.com/2010/08/connect-vyatta-to-cisco-using-virtualbox-gns3/feed/ 5 Cisco 2900 – Interface related chassis modification http://www.firstdigest.com/2010/08/cisco-2900-interface-related-chassis-modification/?utm_source=rss&utm_medium=rss&utm_campaign=cisco-2900-interface-related-chassis-modification http://www.firstdigest.com/2010/08/cisco-2900-interface-related-chassis-modification/#comments Mon, 09 Aug 2010 11:41:50 +0000 Calin http://www.firstdigest.com/?p=2793


The Cisco Enhanced EtherSwitch Service Modules seen above, expands the router’s capabilities by integrating Layer 2 and Layer 3 switching feature sets identical to those found in the Cisco Catalyst 3560-E and Catalyst 2960 Series Switches.

The new Cisco Enhanced EtherSwitch Service Modules are the first modules to take [...]]]> http://www.firstdigest.com/2010/08/cisco-2900-interface-related-chassis-modification/feed/ 0 Category 6 UTP http://www.firstdigest.com/2009/05/category-6-utp/?utm_source=rss&utm_medium=rss&utm_campaign=category-6-utp http://www.firstdigest.com/2009/05/category-6-utp/#comments Wed, 06 May 2009 11:57:12 +0000 Calin http://www.firstdigest.com/?p=1268 Category 6 cable, usually Cat-6, is a cable standard for Gigabit Ethernet and other network protocols that is backward compatible with the Category 5/5e and Category 3 cable standards. The main difference between Cat-6 and it’s previous versions is that CAT-6 fully utilizes all four pairs. Cat-6 features more stringent specifications for crosstalk and system [...]]]> http://www.firstdigest.com/2009/05/category-6-utp/feed/ 2