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1). 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 ab...
2). Cisco CCNP / BSCI Tutorial: Route Summarization With RIP And EIGRP By : Chris Bryant, CCIE #12933
To pass your BSCI exam and earn your CCNP certification, you've got to master route summarization. When you get to the BSCI level, actually breaking the routes down into binary strings and performing summarization is second nature to you. (If it isn't, get some more practice!) What makes CCNP / BSCI route summarization more difficult is just keepin...
3). Cisco CCNA Certification Exam Tutorial: The OSPF RID By : Chris Bryant, CCIE #12933
OSPF is a major topic on your CCNA exam, as well it should be. OSPF is a widely-used WAN protocol, and you need to learn the fundamentals before moving on to more complicated configurations. One such detail is the OSPF Router ID, or RID.
The RID is the dotted decimal value by which other OSPF routers will identify a given OSPF router. ...
4). Cisco CCNP / BSCI Exam Tutorial: ISIS Router Types By : Chris Bryant, CCIE #12933
To pass the BSCI exam and earn your CCNP, you've got to know ISIS inside and out. There are many similarities between ISIS and OSPF, but one major difference is that ISIS has three different types of routers - Level 1 (L1), Level 2 (L2), and L1/L2.
L1 routers are contained in a single area, and are connected to other areas by an L1/L2 ...
5). Cisco CCNA / CCNP Home Lab Tutorial: Starting Over By : Chris Bryant, CCIE #12933
When you're preparing for success on your CCNA or CCNP certification exams, sooner or later you're going to want to start totally from scratch on your Cisco routers and switches. It's easy enough to type "write erase" and "reload", but there are a few details you have to watch if you want your home lab or rack rental devices to act as though they j...
6). CCNA / CCNP Home Lab Tutorial: The VLAN.DAT File By : Chris Bryant, CCIE #12933
CCNA and CCNP candidates who have their own Cisco home labs often email me about an odd situation that occurs when they erase a switch's configuration. Their startup configuration is gone, as they expect, but the VLAN and VTP information is still there!
Sounds strange, doesn't it? Let's look at an example. On SW1, we run show vlan brie...
7). Cisco CCNA Certification Exam Tutorial: DNS And The IP Name-Server Command By : Chris Bryant, CCIE #12933
DNS behaviors of a Cisco router are important topics for both the CCNA exam and real-world production networks, and you probably didn't know there were so many DNS details before you began studying for the exam! In this tutorial, we'll look at the ip name-server command and its proper usage.
When a command is mistyped on a Cisco router...
8). 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...
9). Cisco CCNP / BCMSN Exam Tutorial: Dynamic VLANs and VMPS By : Chris Bryant, CCIE #12933
Knowledge of Dynamic VLANs and VMPS is important in your efforts to pass the BCMSN exam and earn your CCNP, and it's also a great skill to have for your networking career.
As a CCNA and CCNP candidate, you know how and why to configure static VLANs. Static VLANs can be a powerful tool for reducing unnecessary broadcast and multicast t...
10). Cisco CCNA Exam Tutorial: Five ISDN Details To Remember By : Chris Bryant, CCIE #12933
CCNA exam success depends on mastering many technologies that are new to you, and few exam topics have more details than ISDN. ISDN isn't just for your CCNA exam studies, though. While ISDN is dismissed by many, the fact is that there are many small and mid-size networks out there that use ISDN as their backup to frame relay. Some of these companie...
11). Cisco CCNA Certification Exam Tutorial: Configuring And Troubleshooting VTP By : Chris Bryant, CCIE #12933
Not only is your CCNA exam going to have questions on VLAN trunking protocol, almost any network that has more than one VLAN is going to have VTP running. Whether you're planning on passing the CCNA exam or just brushing up on your networking skills, this VTP tutorial will help you learn the basics of this important protocol.
VTP allow...
12). Cisco CCNP / BSCI Certification: The BGP Attribute “MED” By : Chris Bryant, CCIE #12933
When you're preparing to pass the BSCI exam and earn your CCNP certification, one of the biggest challenges is learning BGP. BGP is totally different from any protocol you learned to earn your CCNA certification, and one of the differences is that BGP uses path attributes to favor one path over another when multiple paths to or from a destination e...
13). Cisco CCNP / BSCI Exam Tutorial: Configuring And Troubleshooting OSPF Virtual Links By : Chris Bryant, CCIE #12933
Knowing when and how to create an OSPF virtual link is an essential skill for BSCI and CCNP exam success, not to mention how important it can be on your job! As a CCNA and CCNP candidate, you know the theory of virtual links, so let's take a look at how to configure a virtual link, as well as some real-world tips that many CCNA and CCNP study guide...
14). Cisco CCNA Certification: The Importance Of Hands-On Practice By : Chris Bryant, CCIE #12933
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 just so they can solve the simulator problems, but that’s only the more obvious reason.
First, I want to make it clear that I’m not bashing learning from books you have to learn theo...
15). Cisco Certification: Putting Together Your Own Home Practice Lab By : Chris Bryant, CCIE #12933
CCNA and CCNP candidates hear it all the time: “Get some hands-on experience”. From my personal experience climbing the Cisco certification ladder, I can tell you firsthand that there is no learning like hands-on learning. No simulator in the world is going to give you the experience you will get cabling and configuring your own routers.
16). Cisco Home Lab Tutorial: Buying And Building A Frame Relay Switch By : Chris Bryant, CCIE #12933
One of the major topics on your CCNA and CCNP exams is Frame Relay. Additionally, Frame Relay is one of the most popular WAN technolgies in today's networks. Getting hands-on experience with Frame Relay in Cisco networks isn't just a good idea, it's a necessity. Let's face it, your employer is going to get a little touchy if you start experimenting...
17). 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 redistri...
18). Cisco CCNP Certification / BCMSN Exam Tutorial: Writing QoS Policy By : Chris Bryant, CCIE #12933
QoS - Quality of Service - is a huge topic on both the BCMSN exam and real-world networks. QoS is so big today that Cisco's created separate specialist certifications that cover nothing but QoS! It can be an overwhelming topic at first, but master the fundamentals and you're on your way to exam and job success.
If you work with QoS at ...
19). Cisco CCNA Certification: Defining And Creating Collision Domains By : Chris Bryant, CCIE #12933
When you're studying to pass the CCNA exam and earn your certification, you're introduced to a great many terms that are either totally new to you or seem familiar, but you're not quite sure what they are. The term "collision domain" falls into the latter category for many CCNA candidates.
What exactly is "colliding" in the first place...
20). Cisco CCNP / BSCI Exam Tutorial: OSPF Router Types By : Chris Bryant, CCIE #12933
When you're preparing to pass the BSCI exam on the way to the coveted Cisco CCNP certification, you can be quickly overwhelmed by the sheer amount of BGP and OSPF knowledge you must demonstrate a mastery of. One set of details that some BSCI and CCNP candidates underestimate are the differences between the OSPF router types.
An OSPF I...
21). 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 go...
22). Cisco CCNP / BCSI Exam Tutorial: Broadcasts And The IP Helper-Address Command By : Chris Bryant, CCIE #12933
While routers accept and generate broadcasts, they do not forward them. This can be quite a problem when a broadcast needs to get to a device such as a DHCP or TFTP server that's on one side of a router with other subnets on the other side.
If a PC attempts to locate a DNS server with a broadcast, the broadcast will be stopped by the ...
23). 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 packe...
24). Cisco CCNA Certification Exam Tutorial: Frame Relay DLCIs And Mappings By : Chris Bryant, CCIE #12933
Passing the CCNA is tough, and one of the toughest parts is keeping all the acronyms straight! Frame Relay has plenty of those, and today we're going to examine what DLCIs do and how they're mapped on a Cisco router.
Frame Relay VCs use Data-Link Connection Identifiers (DLCI - pronounced "del-see") as their addresses. Unlike other Cisc...
25). Cisco CCNP Exam Tutorial: Defining Collision Domains By : Chris Bryant, CCIE #12933
CCNA exam success depends on mastering the fundamentals, and two important fundamentals are knowing exactly what the terms "collision domain" and "broadcast domain" mean. In this free Cisco tutorial, we'll take a look at the term "collision domain" and how a collision domain is defined.
A collision domain is an area in which a collisio...
26). Cisco CCNP / BCMSN Exam Tutorial: Changing Root Bridge Election Results By : Chris Bryant, CCIE #12933
Your BCMSN and CCNP studies will include mastering the details of Spanning Tree Protocol (STP). While you learned some of these details in your CCNA studies, quite a bit of it may be new to you. Before going on to the intermediate and advanced STP features, let's review the root bridge election process and learn how to change these results.
27). Securing Your Network And Your Career With Cisco's CCSP Certification By : Chris Bryant, CCIE #12933
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. ...
28). CCNP / BCMSN Exam Tutorial: VLAN Trunking Protocol (VTP) By : Chris Bryant, CCIE #12933
Passing the BCMSN exam and getting one step closer to the CCNP certification means learning and noticing details that you were not presented with in your CCNA studies. (Yes, I know – you had more than enough details then, right?) One protocol you’ve got to learn more details about is VTP, which seemed simple enough in your CCNA studies! Part of lea...
29). Cisco CCNP / BSCI Tutorial: The Role Of The OSPF ASBR By : Chris Bryant, CCIE #12933
To pass the BSCI exam and earn your CCNP certification, you've got to master the (many) details of OSPF. You might have thought there were quite a few OSPF details in your CCNA studies, but you'll now build on that foundation on the way to earning your CCNP.
One such detail is the role of the Autonomous System Border Router (ASBR) in O...
30). 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 o...
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