12933 Articles

1). Cisco CCNA / CCNP Home Lab Setup: How To Configure Reverse Telnet By : Chris Bryant, CCIE #12933
Occasionally, during your CCNA and CCNP studies, you'll run into a term that just doesn't quite make sense to you. (Okay, more than occasionally!) One such term is "reverse telnet". As a Cisco certification candidate, you know that telnet is simply a protocol that allows you to remotely connect to a networking device such as a router or switch. But.
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2). Cisco CCNA Certification Exam Tutorial: Variance And Unequal Cost Load Balancing By : Chris Bryant, CCIE #12933
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 varying bandwidth rates. Using the variance command is the easy part - it's getting the metric that's the hard part with IGRP.
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3). Cisco CCNA / CCNP Home Lab Tutorial: Configuring An Access Server By : Chris Bryant, CCIE #12933
As your CCNA / CCNP home lab expands, an access server such as the Cisco 2509 or 2511 is one of the best investments you can make. In this article, we'll look at the basic configuration for an access server and discuss how to connect to the other routers and switches in your pod through the AS. Here's part of a configuration from one of my access servers: ip host FRS 2006 100.
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4). Cisco CCNP / BSCI Exam Tutorial: Using The OSPF Command “Area Range” By : Chris Bryant, CCIE #12933
Your BSCI and CCNP exam success depends on knowing the details, and one such detail is knowing the proper way to summarize routes in OSPF. Route summarization is not just a test of your binary conversion abilities, but knowing where and when to summarize routes. It will not surprise any CCNA or CCNP certification candidate that OSPF gives us the most options for route summarization, and therefore more details to know! OSPF offers us two options for route summarization configurations.
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5). Cisco CCNA Certification: How And Why Switches Trunk By : Chris Bryant, CCIE #12933
Your CCNA studies are going to include quite a bit of information about switches, and for good reason. if you don't understand basic switching theory, you can't configure and troubleshoot Cisco switches, either on the CCNA exam or in the real world. That goes double for trunking! Trunking is simply enabling two or more switches to communicate and send frames to each other for transmission to remote hosts.
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6). Cisco CCNA / CCNP Certification: OSPF E2 vs. E1 Routes By : Chris Bryant, CCIE #12933
OSPF is a major topic on both the CCNA and CCNP exams, and it's also the topic that requires the most attention to detail. Where dynamic routing protocols such as RIP and IGRP have only one router type, a look at a Cisco routing table shows several different OSPF route types. R1#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M -.
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7). Cisco CCNA / CCNP Home Labs: Developing Troubleshooting Skills By : Chris Bryant, CCIE #12933
CCNA / CCNP candidates are going to be drilled by Cisco when it comes to troubleshooting questions. You're going to have to be able to analyze configurations to see what the problem is (and if there is a problem in the first place), determine the meaning of different debug outputs, and show the ability not just to configure a router or switch, but troubleshoot one.
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8). Cisco CCNA / CCNP Exam Tutorial: Five Debugs You Must Know By : Chris Bryant, CCIE #12933
To pass the BSCI exam and move one step closer to CCNP certification success, you've got to know how and when to use debug commands to troubleshoot and verify network operations. While you should never practice debug commands on a production network, it's important to get some hands-on experience with them and not rely on "router simulators" and books to learn about them.
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9). Cisco CCNA Exam Tutorial: Troubleshooting Directly Connected Serial Interfaces By : Chris Bryant, CCIE #12933
CCNA exam success depends largely on noticing the details, and this is especially true of configurations involving directly connected serial interfaces. And of course, it's not enough to notice these details - you've got to know what to do about them! A Cisco router is a DTE by default, but directly connecting two DTEs with a DCE/DTE cable is not enough.
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10). Tips On Buying A Cisco CCNA / CCNP Home Lab Kit By : Chris Bryant, CCIE #12933
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.
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11). Cisco CCNP Certification / BSCI Exam Tutorial: An Introduction To BGP By : Chris Bryant, CCIE #12933
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.
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12). CCNP / BSCI Exam Tutorial: Route Summarization And The OSPF Null Interface By : Chris Bryant, CCIE #12933
CCNP exam success, particularly on the BSCI exam, demands you understand the details of route summarization. This skill not only requires that you have a comfort level with binary conversions, but you have to know how and where to apply route summarization with each individual protocol. You also have to know the "side effects" of route summarization.
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13). Cisco CCNA Certification: Five Key Combinations You Should Know By : Chris Bryant, CCIE #12933
When you start studying for your CCNA and CCNP exams, many books will present you with a huge list of keystroke shortcuts for use on Cisco routers. While the 640-801, 811, and 821 exams may ask you about one or two of these, you really have to get hands-on experience with these commands to master them. Even better, there are some key combinations that Cisco routers mention, but then don't tell you what they are! Let's take a look at a few of the more helpful key combinations, and conclude with the "secret" way to stop a ping or traceroute.
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14). Cisco CCNP / BSCI Exam Tutorial: Using Distribute Lists By : Chris Bryant, CCIE #12933
To be successful on the BSCI exam and in earning your CCNP, you've got to master route redistribution. This isn't as easy as it sounds, because configuring route redistribution is only half the battle. Whether it's on an exam or in a real-world production network, you've got to identify possible points of trouble before you configure route redistribution - and you need to be able to control redistribution as well.
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15). Cisco CCNA Exam Tutorial And Case Study: VLANs and IP Connectivity By : Chris Bryant, CCIE #12933
In this CCNA case study, we'll take some basic switching and trunking theory and put it into action. We have two routers (R2 and R3) along with two switches (SW1 and SW2). R2 is connected to SW1 at fast 0/2, and R3 is connected to SW2 at fast 0/3. Both routers have IP addresses on the 172.12.23.0 /24 network. For these routers to be able to ping each other, the switches must be able to communicate.
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16). Cisco CCNA Certification: Cisco Switching Modes Tutorial By : Chris Bryant, CCIE #12933
To pass the CCNA exam and earn that coveted certification, you've got to know Cisco switches inside and out. Among the many important details you've got to know are the three methods that Cisco switches use to forward frames, and the differences between the three. The first switching method is Store-and-Forward. The name is the recipe, because that's just what the switch does - it stores the entire frame before beginning to forward it.
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17). Cisco CCNA Exam Tutorial: How To Spend Your Study Time By : Chris Bryant, CCIE #12933
To pass the CCNA exam, you've got to create a study plan. Part of that plan is scheduling your study time, and making that study time count. You’ve scheduled your exam you’ve created a document to track your study time you’ve planned exactly when you’re going to study. Now the plan must be carried out, without exception. What exceptions do I mean? Cell phones.
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18). Cisco CCNP / BCMSN Exam Tutorial: Static VLANs By : Chris Bryant, CCIE #12933
BCMSN exam success and earning your CCNP certification requires you to add to your knowledge of VLAN configuration. When you studied for your CCNA exam, you learned how to place ports into a VLAN and what the purpose of VLANs was, but you may not be aware that there are two types of VLAN membership. To pass the BCMSN exam, you must know the details of both types.
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19). Cisco CCNP / BSCI Exam Tutorial: Ten IP Routing Details You Must Know! By : Chris Bryant, CCIE #12933
To pass the BSCI exam and earn your CCNP, you've got to keep a lot of details in mind. It's easy to overlook the "simpler" protocols and services such as static routing and distance vector protocols. With this in mind, here's a quick review of some details you should know for success in the exam room and real-world networks! When packets need to be routed, the routing table is parsed for the longest prefix match if multiple paths exist with the same prefix length, the route with the lowest AD is preferred.
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20). Cisco CCNA Exam Tutorial: Split Horizon And Hub-And-Spoke Networks By : Chris Bryant, CCIE #12933
For CCNA exam success, you had better know what split horizon is, how to turn it off, and when to turn it off. Knowing when to turn split horizon off is also important in production networks, because it can cause a hub-and-spoke network to have incomplete routing tables on the spokes. Split horizon exists for a very good reason - routing loop prevention.
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21). Cisco CCNP / BSCI Certification: Introduction To ISIS Terminology By : Chris Bryant, CCIE #12933
When you're studying to pass the BSCI exam and earn your CCNP certification, you're going to be introduced to ISIS. ISIS and OSPF are both link-state protocols, but ISIS works quite differently from OSPF. You must master these details in order to earn your CCNP. One of the major differences between OSPF and ISIS will be evident to you when you first begin your BSCI exam studies, and that is the terminology.
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22). Cisco Certification: The "Secret" Key To Getting Your CCNA And CCNP By : Chris Bryant, CCIE #12933
Whether you're working on your CCNA or CCNP, Cisco certification exams are the most demanding computer certification exams in the IT field. Cisco exams are not a test of memorization, they're a test of your analytical skills. You'll need to look at configurations and console output and analyze them to identify problems and answer detailed questions.
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23). Cisco CCNP / BCSI Exam Tutorial: Configuring EIGRP Packet Authentication By : Chris Bryant, CCIE #12933
Configuring RIPv2 and EIGRP authentication with key chains can be tricky at first, and the syntax isn't exactly easy to remember. But for BSCI and CCNP exam success, we've got to be able to perform this task. In a previous tutorial, we saw how to configure RIPv2 packet authentication, with both clear-text and MD5 authentication schemes. EIGRP authentication is much the same, and has the text and MD5 authentication options as well.
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24). Cisco CCNP / BSCI Exam Tutorial: A Guide To Ipv6 Addressing By : Chris Bryant, CCIE #12933
Learning IPv6 is paramount in your efforts to pass the BSCI exam and go on to earn your CCNP, and it's going to help in your real-world networking career as well. IPv6 can be confusing at first, but it's like anything else in Cisco or networking as a whole - learn one part at a time, master the fundamentals, and you're on your way to success. In today's article we're going to take a look at IPv6 address types.
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25). Cisco CCNP Certification: Using The BGP Command “Update-Source” By : Chris Bryant, CCIE #12933
When you start preparing for your CCNP exam, particularly the BSCI exam, you're introduced to Border Gateway Protocol (BGP) configurations. BGP is unlike any protocol you learned during your CCNA studies, and even the similarities are a little bit different! BGP forms neighbor relationships, much like EIGRP and OSPF do. The interesting thing with BGP is that potential neighbors, or "peers", do not need to be directly connected and can use their loopback interfaces to form the peer relationships.
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