So I just passed my ICND2 exam, I’m now CCNA certified! This was a long road to travel over a year ago I passed ICND1 which I recived the CCENT certification but with just general life getting in the way I also saw my chance of getting CCNA status stepping further in the distance. If you read how I passed ICND1 will find that the way I studied for this exam was totally different from studying for the ICND1.
So here we are on Part 2 of subnetting. What makes me laugh is that I really think a lot of people over think this stuff. It’s really not the complicated and it should not scare you. Another thing to mention is that usually in the real world you usually have calculators and another pair of eyes to double-check your work unlike the exam you will need to fully understand it if you would like to pass the ICND2 or the CCNA test. So let’s get started! Continue reading “Part 2 – The Joys of Subnetttting – VLSM!”
Since network technicians work with IP addressing, it is hugely important to understand subnetting. I remember back when I started to learn subnetting it was confusing and I wanted nothing to do with it. The thing that made me change my mind was after I understood it and how important it is. In the “Cisco world” they don’t cover useless topics, there is always a reason why they expect you to know this and it’s not just for the exams. Subnetting has always had its moments with people and in this blog I’ll do my best to show you what I have done to make subnetting an easier experience. Continue reading “Part 1 – The Joys of Subnetting!”
Enhanced Interior Gateway Routing Protocol (EIGRP) is an impressive set of features for IP Routing, which converges quickly and is on par and sometimes faster than OSPF. This routing protocol requires less processing time, less memory, and less network design than compared to OSPF.
What’s the catch? This protocol is Cisco proprietary, if you have a network that uses non-Cisco routers, EIGRP will not and cannot be used on those routers. (Edit: Cisco has open this up to the IETF but you could still see issues if you found a vendor that supported EIGRP and not all features are supported***) EIGRP does not really fit into a specific spot of either Link-State or Distance vector, instead it stands on its own and is called hybrid routing protocol. Continue reading “EIGRP… The Basics”
HDLC and PPP are considered to be in layer 2 of the OSI model. There are some differences between which will be describe in this post, If you would like to learn more about at least the basic configuration of PPP including PAP and CHAP check out the post I wrote about year ago. (Basic PPP Configuration) HDLC was first developed by the ISO Cisco tweaked the protocol sometimes called cHDLC and because of this it only works with Cisco equipment. PPP is defined by RFC 1968 which is an open standard and is able to work on multi-vender equipment. Continue reading “HDLC vs. PPP”