To pass the CCNA exam, you’ve got to know how to work with IGRP and EIGRP unequal-cost load balancing. You may not see much IGRP in production networks anymore, but you’ll see a lot of EIGRP, and part of fine-tuning your EIGRP network is making sure that all paths are in use while allowing for [...]
Candidates preparing to pass the CCNP exams are putting together Cisco home labs like never before. With CCNA and CCNP home lab equipment more affordable than ever, candidates have realized the importance of working on real Cisco routers and switches on the way to earning their certifications.
One question I get often from CCNP candidates [...]
There is a real revolution today among CCNA and CCNP candidates. More and more of you are turning your back on “router simulators” and putting your own CCNA and/or CCNP Home Lab together, which is the best way to totally prepare to pass these tough Cisco exams.
I get hundreds of emails every month from [...]
When you begin your CCNA studies, you get hit with a lot of different networking terms right away that you might not be familiar with. What makes it a little more confusing is that a lot of these terms sound a lot alike. Here, we’re going to discuss the differences between broadcasts, multicasts, and unicasts [...]
There’s nothing I enjoy more than teaching Cisco technologies, especially CCNA candidates. Whether it’s in-person or online, everyone’s excited to be there. There’s a sense of anticipation in the air, and everyone is ready to work hard, get their hands on the racks of Cisco routers and switches I
have available…
… and then I [...]
A CCNA or CCNP candidate who wants to be totally prepared for their exams is going to put together a home lab to practice on. With used Cisco routers and switches more affordable and plentiful then ever before, there’s really no excuse to not have one!
With the many different models available, there is some [...]
One of the first things you do when you start studying for the CCNA exam is memorizing a list of port numbers and the protocols that run on those ports. If you’re an experienced networker, you know most of the protocols that are mentioned - DNS, DHCP, FTP, SMTP, and so on. But there’s one [...]
Like TCP, BGP is connection-oriented. An underlying connection between two BGP speakers is established before any routing information is exchanged. This connection takes place on TCP port 179. As with EIGRP and OSPF, keepalive messages are sent out by the BGP speakers in order to keep this relationship alive.
Once the connection is established, [...]
Whether you’re thinking of starting a career with computers and information technology, or thinking about earning a professional certification such as the CCNA or MCSE to accelerate your career, there is no better time to start than today. Silicon Valley is hiring again, and while we all can’t work for Google, IT hiring is at [...]
You don’t need me to tell you that security is the #1 concern in today’s networks. With that in mind, your career path must include some security certifications, or you will be left behind.
Cisco’s Cisco Certified Security Professional (CCSP) certification demands a candidate be well-rounded and well-versed in Cisco security measures. Besides the difficultly we’ve [...]
