Tag Archive for icnd

Tips On Buying A Cisco CCNA / CCNP Home Lab Kit

Buying a CCNA / CCNP home lab is the best way to be totally prepared for your Cisco exams. Most home labs are put together one router or switch at a time, but many CCNA / CCNP candidates prefer to buy kits where you get multiple routers and switches, along with all the cables and other connection devices you’ll need.

While this is a good idea, keep a few things in mind when purchasing Cisco home lab kits.

Don’t buy anything you don’t need. The problem is that when you’re first starting out with your Cisco home lab, you don’t know everything that you need. (I sure didn’t!) Keep in mind that you only need one transceiver per AUI port on a Cisco router, so if you’re getting routers with two AUI ports in all, you don’t need five transceivers in the kit. It doesn’t hurt to have one spare, but three is a little too much.

More importantly, don’t buy kits with old CCNA or CCNP study guides included. I’ve seen kits with books that were three years old and were of no use to the candidate. If you see a kit that looks good but includes books or manuals you just don’t want, ask the vendor for a price that doesn’t include the books. It never hurts to ask.

Watch the IOS version. Unless you’ve got access to IOS upgrades, you’ll be working with the IOS version that’s on the routers and switches when you buy the kit for a while. You don’t necessarily need the latest and greatest IOS version for CCNA study, but don’t buy routers with IOS versions beginning with “10″ unless you have an IOS to upgrade them with. (And make sure the routers have enough memory to handle the IOS you plan on putting on them.)

Purchasing a Cisco CCNA / CCNP Home Lab is one of the best investments in your career that you will ever make. Exercise just a bit of caution when purchasing your kit, and you’ll be on your way to true Cisco success, in the exam room and on your network!

What Certification Should You Pursue After The CCNA ?

Once you’ve got your CCNA, you’re ready to move on to the next level, the Professional certifications. For years, Cisco had one Professional certification, the Cisco Certified Network Professional (CCNP) certification. Over time, Cisco has expanded this level of certifications to include the Cisco Certified Security Professional (CCSP) and Cisco Certified Voice Professional (CCVP).

With security and voice being the two most rapidly expanding areas of today’s networks, some new CCNAs consider going after the CCSP or CCVP without first adding the CCNP to their resume.

While it’s temping to hurry up and get a Cisco security or voice certification, the best thing you can do for your networking career is achieve your CCNP certification first, then decide on the CCVP or CCSP.

Why? Because the CCNA is just the tip of a very large iceberg when it comes to routing and switching. It’s a very important accomplishment, and the CCNA is indeed the foundation of your networking career, but you need to add on to that level of understanding routing and switching before moving on to more specialized areas.

Two examples are OSPF and BGP. You learn about the theory of OSPF and some basic and intermediate configurations of that protocol in your CCNA studies, but the knowledge you acquire of OSPF in your CCNP studies is invaluable. As for BGP, there is no BGP in the CCNA curriculum, but it is a great idea to have some BGP knowledge in today’s networks. It’s also good for your career.

I know it is a huge temptation to go after the security and voice certifications while not paying attention to the CCNP. Do yourself a huge favor and add the tremendous amount of routing and switching knowledge needed for the CCNP to your knowledgebase, and you can then move on to the CCSP or CCVP. Even better, you’ll be better prepared to climb the biggest certification mountain around – the CCIE!

CCNA / CCNP Home Lab Tutorial: The VLAN.DAT File

CCNA and CCNP candidates who have their own Cisco residence labs usually e mail me about an odd state of affairs that occurs once they erase a swap’s configuration. Their startup configuration is gone, as they anticipate, but the VLAN and VTP info is still there!

Sounds strange, doesn’t it? Let’s take a look at an example. On SW1, we run present vlan temporary and see on this abbreviated output that there are three extra vlans in use:

Switch#show vlan br

10 VLAN0010 active

20 VLAN0020 active

30 VLAN0030 active

The reason is that this vlan and VTP information is actually kept in the VLAN.DAT file in Flash memory, and the contents of Flash are kept on a reload. The file has to be deleted manually.

There’s a little trick to deleting this file. The switch will prompt you twice to ask if you really want to get rid of this file. Don’t type “y” or “yes”; just accept the defaults by hitting the return key. If you type “y”, the router attempts to delete a file named “y”, as shown here:

Switch#delete vlan.dat

Delete filename [vlan.dat]? y

Delete flash:y? [confirm]

%Error deleting flash:y (No such file or directory)

Switch#delete vlan.dat

Delete filename [vlan.dat]?

Delete flash:vlan.dat? [confirm]

Switch#

The best way to prepare for CCNA and CCNP exam success is by working on real Cisco equipment, and by performing lab tasks over and over. Repetition is the mother of skill, and by truly erasing your VLAN and VTP information by deleting the vlan.dat file from Flash, you’ll be building your Cisco skills to the point where your CCNA and CCNP exam success is a certainty.