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Chris Bryant, CCIE #12933 Profile and Articles
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1). Cisco CCNA / CCNP Certification Exam Tutorial: ISDN And Multilink PPP
ISDN is a huge topic on both your Cisco CCNA and BCRAN CCNP exams. While many ISDN topics seem straightforward, it’s the details that make the difference in the exam room and working with ISDN in production networks. Configuring and troubleshooting multilink PPP is just one of the skills you’ll need to pass both of these demanding exams.
With BRI, we've got two B-channels to carry data, and both of them have a 64-kbps capacity.
2). Cisco CCNP Certification / BCMSN Exam Tutorial: The HSRP MAC Address
To pass the BCMSN exam and earn your CCNP, you've got to know HSRP inside and out! Part of that is knowing how the MAC address of the virtual router is derived, and another part is knowing how to change this address. We'll look at both features in this tutorial.
We've got two routers on a segment running HSRP, so first we need to find out what the MAC address of the HSRP virtual router is.
3). Cisco CCNA / CCNP / BCMSN Exam Review: Trunking And Trunking Protocols
To earn your CCNA or CCNP certification, you've got to understand the basics of trunking. This isn't just a CCNA topic - you must have an advanced understanding of trunking and etherchannels to pass the BCMSN exam and earn your CCNP as well. Before we address those advanced topics, though, you need to master the fundamentals!
A trunk allows inter-VLAN traffic to flow between directly connected switches.
4). Cisco CCNP / BSCI Exam Tutorial: 10 ISIS Details You Must Know!
Earning your CCNP certification and passing the BSCI exam depends on knowing the details of many Cisco technologies, ISIS chief among them. To help you prepare for exam success, here's a list of ISIS terminology and basic concepts that will help you pass this tough exam. Enjoy!
ISIS Terms:
Domain: section of the network under common administrative control
Area: logical segment of the network composed of contiguous routers and their data links
Intermediate System: A router.
5). CCNP Certification / BCMSN Exam Tutorial: Server Load Balancing (SLB)
When you're working on your BCMSN exam on your way to CCNP certification, you'll read at length about how Cisco routers and multilayer switches can work to provide router redundancy - but there's another helpful service, Server Load Balancing, that does the same for servers. While HSRP, VRRP, and CLBP all represent multiple physical routers to hosts as a single virtual router, SLB represents multiple physical servers to hosts as a single virtual server.
6). Cisco CCNA Certification Exam Tutorial: Distance Vector Command Review
Part of studying for CCNA exam success is keeping all these new commands straight in your head! And let's face it, there are a lot of commands you need to know in order to pass the CCNA exam and earn that certification. Here's a review of some very important distance vector and static routing commands you need to know, along with their proper usage and console output.
7). Cisco CCNA Certification Exam Tutorial: Keep Your Most Important Appointment
Imagine this. You have an appointment with a client to work on a server or router install. A few minutes before you're scheduled to be there, you decide there's something really good on TV you'd like to watch. Or you decide to go to the gym, or play a game, or do anything else except go see the client.
Even if you weren't going to get fired for not showing up, it's certainly unfair to the client.
8). CCNP Certification / BSCI Exam Tutorial: The BGP Neighbor Process
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, the BGP speakers exchange routes and synchronize their tables.
9). Cisco CCNP Certification / BSCI Exam Tutorial: An Introduction To BGP
When you're studying for the BSCI exam on the way to earning your CCNP certification, it's safe to say that BGP is like nothing you’ve studied to this point. BGP is an external routing protocol used primarily by Internet Service Providers (ISPs). Unless you work for an ISP today or in the future, you may have little or no prior exposure to BGP. Understanding BGP is a great addition to your skill set – and you have to know the basics well to pass the BSCI exam.
10). Cisco CCNA / CCNP Certification Exam Review: Protocol Basics
To earn your Cisco CCNA certification and pass the BSCI CCNP exam, you have to know your protocol basics like the back of your hand! To help you review these important concepts, here's a quick look at the basics of RIPv1, RIPv2, IGRP, and EIGRP.
RIPv1: Broadcasts updates every 30 seconds to the address 255.255.255.255. RIPv1 is a classful protocol, and it does not recognize VLSM, nor does it carry subnet masking information in its routing updates.
11). CCNA / MCSE / CCNP Certification: Making Failure Work For You
Whether you're on the road to the CCNA, CCNP, MCSE, or you're on any other computer certification track, the odds are that sooner or later, you're going to fail an exam. It's happened to almost all of us, yours truly included. What you have to keep in mind in these times is that success is not a straight line. You've probably seen charts showing the growth of an industry or a business -- you know, the ones that go from left to right, and look kind of jagged.
12). Cisco CCNA / CCNP Certification Exam Lab: Frame Relay Subinterfaces And Split Horizon
Earning your Cisco CCNA and CCNP is a tough proposition, and part of that is the fact that you quickly learn that there’s usually more than one way to do things with Cisco routers – and while that’s generally a good thing, you better know the ins and outs of all options when it comes to test day and working on production networks. Working with Frame Relay subinterfaces and split horizon is just one such situation.
13). Cisco CCNA / CCNP Certification Exam Tutorial: Troubleshooting EIGRP
Part of earning your CCNA and CCNP - especially passing the difficult CIT exam - is becoming a master network troubleshooter. Today, we'll take a look at troubleshooting EIGRP and spotting common errors.
Most adjacency issues are easily resolved - mistyped IP address, bad wildcard mask in the neighbor statement, mistyped EIGRP AS number, and so forth.
14). Network+ Certification Exam Tutorial: Ethernet CSMA/CD Explained
When you're studying for the Network+ exam, you've got a lot of new acronyms to learn! One of the basics is CSMA/CD, which stands for Carrier Sense Multiple Access with Collision Detection. That's quite a mouthful, but it's an important term to know for both your exam and real-world success.
On an Ethernet segment, hosts can send data at any time. As you might guess, that's a bit of a problem in itself, because if multiple hosts send data at the same time, a collision will occur and the data will become unusable.
15). Cisco CCNA / CCNP Certification Exam Tutorial: Configuring PPP Callback
You may run into situations where a router in a remote location needs to dial in to a central router, but the toll charges are much higher if the remote router makes the call. This scenario is perfect for PPP Callback, where the callback client places a call to a callback server, authentication takes place, and the server then hangs up on the client! This ensures that the client isn't charged for the call.
16). Cisco CCNA / CCNP Certification Exam Tutorial: Floating Static Routes
To pass the Cisco CCNA and CCNP certification exams, as well as becoming a world-class networker, you've got to know how and when to use floating static routes. And if you're wondering what makes them "float" -- read on!
In this example, R1 and R2 are running OSPF over a Frame Relay network, 172.12.123.0 /24. They're also connected by a BRI ISDN link, 172.
17). Cisco CCNA / CCNP Home Lab Tutorial: The 2520 Router
I hear from CCNA and CCNP candidates every day, and the most common question is "What routers and switches should I buy for my home lab?" There is no one right answer to this question, since every test candidate has a different budget. There are also CCNA candidates who want to go on to the CCNP and want to know what routers and switches are best for future study.
18). Cisco CCNP Certification Exam Tutorial: Making The Most Of Cisco's CCNP Program Changes
As you probably know by now, Cisco's making some sweeping changes in their Cisco Certified Network Professional (CCNP) program. Two longtime exams are being retired at the end of the year, two are being revised, and two new exams will be making their debut in late 2006.
If you're currently working on the CCNP or even thinking about it, the one thing you must NOT do is postpone your studies.
19). Network+ Certification Exam Tutorial: ARP and Proxy ARP Explained
In yesterday's Network+ tutorial, we talked about the importance of Address Resolution Protocol (ARP) in today's networks. A host PC must have the MAC and IP addresses of a remote host in order to send data to that remote host, and it's ARP that allows the local host to request the remost host to send the local host its MAC address through an ARP Request.
20). Cisco CCNA / CCNP Exam Tutorial: Testing ISDN Links Without Pings
To earn your Cisco CCNA and CCNP certifications, you've got to master ISDN - and despite what some people say, there's still a lot of ISDN out there that needs to be supported. And when it comes to troubleshooting ISDN, there's a lot to look at. Is the correct ISDN switchtype configured? Are the dialer map statements correct? What about the dialer-group and dialer-list commands? And that's just the start.
21). Cisco CCNA / CCNP Certification Exam: Cabling Your Home Lab
More CCNA and CCNP candidates than ever before are putting together their own home labs, and there's no better way to learn about Cisco technologies than working with the real thing. Getting the routers and switches is just part of putting together a great CCNA / CCNP home lab, though. You've got to get the right cables to connect the devices, and this is an important part of your education as well.
22). Cisco CCNA / CCNP Certification Tutorial: Frame Relay End-To-End Keepalives
One of the first things you learned about Frame is that the LMI also serves as a keepalive, or a heartbeat - and if three consecutive LMIs are missed, the line protocol goes down. There's a limitation to LMI as a keepalive, though. The LMI is exchanged only between the DTE and the closest DCE. The LMI is therefore a local keepalive that does not reflect any possible issues on the remote end of the virtual circuit.
23). CCNA / Network+ Certification Exam Tutorial: Collision Domains And Switches
In the previous Network+ exam tutorial, we talked about how collisions occur when data sent by two hosts on a shared Ethernet segment transmit data at the exact same time. Collisions result in the colliding data being unusable, which means the hosts must retransmit the data - and all this extra activity slows the network down!
Carrier Sense Multiple.
24). eBay Auction Home Business Tutorial: Creating Ebooks With Ebook Pro
In past eBay tutorials, we talked about how people on eBay are willing to pay to learn what you already know - and the best way to convey (and sell!) that information to them is through an electronically delivered book, or "ebook". When a customer purchases your ebook, you just email it to them, and you're done!
We talked about using Microsoft Word and Adobe Professional to create ebooks, and the pros and cons of each.
25). Cisco CCNA / CCNP Certification Exam Tutorial: Dialer Watch
Dialer Watch is a vital part of your CCNA and CCNP studies, particularly for the BCRAN exam, but it's one of the most misunderstood technologies as well. To help you pass the CCNA and CCNP certification exams, here's a detailed look at Dialer Watch.
Dialer Watch allows you to configure a route or routes as "watched" when the watched route leaves the routing table and there is no other valid route to that specific destination, the ISDN link will come up.
26). Getting Started With eBay: The Best Thing To Sell in eBay Auctions Is....
When people find out that I own several home-based businesses, they always ask what I do. When I mention eBay, I can see their eyes light up, because everyone wants to know how to start making money with eBay auctions!
I then mention a few of the things I sell on eBay, and since it has to do with computers, I can actually see their shoulders sag a bit and think "well, that's fine for you, but what about me?"
Here's the good news -- no, the great news -- for anyone who wants to make money on eBay.
27). Cisco CCNA / CCNP Certification Exam: Same Command, Different Results
As a CCNA or CCNP, one thing you've got to get used to is that change is constant. Cisco regularly issues new IOS versions, not to mention the many different kinds of hardware they produce! While it's always nice to have "the latest and the greatest" when it comes to routers, switches, firewalls, etc., we have to be prepared for the fact that not all.
28). Cisco CCNA / CCNP Certification Exam: Troubleshooting Direct Serial Connections
A prime topic of your CCNA and CCNP CIT exams will be connecting Cisco routers directly via their Serial interfaces, and while the configuration is straightforward, there are some vital details and show commands you must know in order to pass the exams and configure this successfully in production and home lab networks. Let's take a look at a sample configuration.
29). Cisco Certification: How To Build Your Own Home Lab
CCNA and CCNP candidates hear it all the time: “Get some hands-on experience”. From my personal experience climbing the Cisco certification ladder
30). Cisco CCNA / CCNP Certification Exam: Frame Relay BECNs and FECNs
BECNs and FECNs aren't just important to know for your Cisco CCNA and CCNP certification exams - they're an important part of detecting congestion on a Frame Relay network and allowing the network to dynamically adjust its transmission rate when congestion is encountered.
The Forward Explicit Congestion Notification (FECN, pronounced "feckon") bit is set to zero by default, and will be set to 1 if congestion was experienced by the frame in the direction in which the frame was traveling.
31). Cisco CCNA / CCNP Certification Exam: Frame Relay Encapsulation Types
When you're studying to pass the Cisco CCNA and CCNP certification exams, you quickly learn that there's always something else to learn. (You'll really pick up on this in your CCIE studies, trust me!) Today we'll take a look at an often-overlooked topic in Frame Relay, the encapsulation type. You don't exactly change this on a daily basis in production networks (not if you want to stay employed, anyway!), but it's an important exam topic that you must be familiar with.
32). Cisco CCNA Certification Exam Tutorial: Port-Based Authentication
To pass your CCNA exam and earn this coveted certification, you must understand the details of port-based authentication. This knowledge has a great deal of value in production networks as well, since this authentication scheme is regularly implemented. Let's take a look at this particular CCNA skill.
Consider a situation where you have a server that will be connected to your switch, and you want the port to shut down if a device with a different MAC address that that of the switch attempts to connect to that port.
33). Network+ Exam Certification Tutorial: The Bus Topology
The Physical layer of the OSI model isn't the most exciting or interesting to work with, but it's the foundation for everything we do in networking. The same goes for the physical side of networking - whether it's cable types, network topologies, or network cards, it's not necessarily the most exciting study you'll ever do, but it is the most important.
34). Cisco CCNA Certification: Don't Overreact To Exam Version Ch
CCNA Certification: Don't Overreact To Exam Version Changes
Whenever a Cisco exam version changes, there's always a lot of chatter about it on
35). Cisco CCNA Certification: Why You MUST Have Hands-On Experie
CCNA and CCNP candidates hear it all the time: “you have to get some hands-on experience to pass the exams”.
Candidates tend to think that’s j
36). Cisco Certification: Configuring CHAP on ISDN
Introduction To ISDN, Part IV: Configuring PPP CHAP Authentication
In part III of this ISDN tutorial, we learned that PPP has two main methods
37). Network+ Certification Exam Tutorial: DHCP And RARP
Part of passing the Network+ exam is mastering the many different protocols and services you're introduced to in your studies, and that's especially hard when two protocols do much the same thing! That's the case with RARP and DHCP, so let's take a close look at these two protocols and why we use them in the first place.
Whether you've been around networks for a while or are just getting started with your IT career, you'll quickly notice that many basic tasks in networking can be handled either statically or dynamically.
38). Cisco CCNA Certification: Should You Take The One-Exam or T
One question I’m often asked by CCNA candidates is whether to take the “one big exam”, or take the two separate exams required by Cisco to
39). Cisco CCNA Certification: Why You MUST Gain Hands-On Router
CCNA and CCNP candidates hear it all the time: "you have to get some hands-on experience to pass the exams".Candidates tend to think that
40). Cisco Certification: Taking Your First Certification Exam
You’ve studied hard; you’ve practiced your configurations; you’ve used your flash cards over and over again; and finally, the big day is here. You
41). Cisco Certification: The Most Important Cisco Study You'll E
All of us are familiar with the pyramids of Egypt. These magnificent structures have stood for thousands of years, withstanding extreme heat and o
42). Cisco CCNA Certification: Five Things To Do DURING The Exam
There are plenty of articles out there about how to prepare for the CCNA exam. However, there are also things you can do to increase your
43). eBay Home Business Tutorial: Is Creating Ebooks With Adobe Professional A Good Idea?
In my previous eBay auction tutorials, I talked about how someone - a lot of someones - are willing to pay for your knowledge, whether it's a soup recipe, bowling tips, or just about anything!
Selling ebooks means that you don't have to spend a lot of money for inventory, and you can "deliver" your ebooks via email immediately after someone purchases them, which is a very big selling point.
44). Network+ Certification Exam Tutorial: Address Resolution Protocol (ARP)
When you're studying for the Network+ exam, you've got to master the fundamentals of networking, because the Network+ is a hard exam to pass due to the range of information covered. One such fundamental is the Address Resolution Protocol, commonly referred to as ARP.
ARP operates at the Data Link layer of the OSI model, and its purpose is often overlooked.
45). Cisco CCNA Certification: Introduction to ISDN, Part I
From the CCNA to the CCIE, ISDN is one of the most important technolgies you'll work with. It's also very common in the field; ISDN is fre
46). Cisco CCNP Certification: Introduction To BGP
Cisco certification candidates are introduced to BGP at the CCNP level, but the reaction to its introduction always reminds me of something I see
47). Cisco Certification: Surviving The Cisco Cable Jungle
One of the most confusing parts of beginning your Cisco studies is keeping all the cable types separate in your mind, and then remembering what th
48). Cisco CCNA / CCNP Certification Exam: Caller ID Screening And Callback
As a CCNA and/or CCNP candidate, you've got to be able to spot situations where Cisco router features can save your client money and time. For example, if a spoke router is calling a hub router and the toll charges at the spoke site are higher than that of the hub router, having the hub router hang up initially and then call the spoke router back can.
49). Starting Your Own eBay Business: The Perils Of Creating Ebooks With Microsoft Word
In my previous eBay auction tutorial, I talked about my personal guarantee to you that you know something that someone on eBay is willing to pay to learn. Whether it's soup recipes, technical knowledge, fishing tips, or something else, I guarantee you can start an eBay home business just by writing about something you know about. No inventory, no huge.
50). Cisco / Microsoft Computer Certification: Be Ready For Your Opportunity
I was reading The Big Moo: Stop Trying To Be Perfect and Start Being Remarkable this morning, and I’d recommend a copy of this to anyone who wants to improve their career and their future. And that’s all of us, right?
There was one particular line that really stood out to me: Betting on change is always the safest bet available. That describes life perfectly, but it also describes a career in Information Technology perfectly as well.
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