Cisco CCNA

The Cisco CCNA Discovery Protocol (CDP) sure looks simple enough, but there are quite a few details to know for success on the Cisco CCNA exam. In yourCisco CCNA studies, you’ll be introduced to additional uses for Cisco CCNA CDP, but for now it’s enough to know that Cisco CCNA CDP is designed to give you information regarding directly connected Cisco CCNA routers and Cisco CCNA switches.

Cisco CCNA CDP runs by default between all directly connected Cisco devices. CDP is also a Cisco CCNA protocol - if the directly connected device is not a Cisco device, you won’t see the information you wanted.

The basic Cisco CCNA CDP command to display information about the directly connected neighbor is “show cdp neighbor”.

R2#show cdp neighbor Cisco CCNA

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge Cisco CCNA

S - Switch, H - Host, I - IGMP, r – Repeater

Device ID Local Intrfce Holdtme Cisco CCNA Capability Platform Port ID

R1 BRI0 167 R 2521 Dialer1

This command is particularly helpful when troubleshooting Cisco CCNA switches. There’s no need to trace wiring in a rack of Cisco CCNA devices to see what routers are connected to a Cisco CCNA switch when show cdp neighbor can be used. In the above output, you can see the remote device’s hostname, what interface on the remote device is connected to the local device, the capability of the remote device, the remote device’s hardware platform, and the local interface that is connected to the remote device.Cisco CCNA

CDP can be disabled at both the global and interface level. To disable CDP at the interface level, run no cdp enable on the interface, and cdp enable to turn it back on Cisco CCNA.

cdp timer defines how often CDP packets are transmitted, and cdp holdtime defines how long a device will hold a received packet.Cisco CCNA

To turn CDP off for the entire router, run no cdp run. To view the current global status of CDP, run show cdp.
One of the major topics on your Cisco 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 with your network’s Frame Relay setup.

To practice all your important Frame Relay commands for your exams, you need a working Frame Relay cloud in your home lab. A production network’s Frame cloud consists of a lot of Frame switches, but if you choose wisely, a single Cisco router can act as your home lab’s entire Frame cloud!

Before we look at the configuration of such a Cisco CCNA router (hereafter referred to as a “frame relay switch”), let’s look at the physical requirements.

The more serial ports you have, the better. You should get a router with at least four serial ports. For frame switching purposes, it doesn’t matter if the ports are synchronous or asynchronous - you just need the ports.

You will also need some Cisco CCNA DTE/DCE cables. The Cisco CCNA DCE end of the cables will be connected to the frame switch.

A great configuration for a CCNA practice lab is three routers that serve as “production” Cisco CCNA routers, and a 4th router as a frame relay switch. (You’ll want an access server as well, but that’s another article.)

What I use in my student and customer pods is a setup where R1 is connected to the frame switch’s S1 port, R2 is connected to S2 on the frame switch, and R3 is connected to the frame Cisco CCNA switch’s S3 port.

Now comes the tricky part - the configuration. A frame relay switch’s config can be hard to find, so here’s a copy of mine. Pay particular attention to the config on ports Cisco CCNA s1, s2, and s3.

Opportunity

I think  that we live in an increasingly connected world, creating a global economy and a growing need for technical skills. Cisco Networking
Academy delivers information technology skills to over 500,000 students a year in more than 165 countries worldwide. Networking Academy students have the opportunity to participate in a powerful and consistent learning experience that is supported by high quality, online curricula and assessments, instructor training,
hands-on labs, and classroom interaction. This experience ensures the same level of qualifications and skills regardless of where in the world a student is located.
Networking Academy students will become the architects of the networked economy; enabling everyday experiences on the global human network. With the ever-increasing demand for their skills, Networking Academy students have the chance to dream about business-critical positions never before imagined, in industries ranging from medicine and finance to entertainment and aerospace. Networking Academy opens doors to rewarding careers and opportunities for economic advancement and local community development. Students only need to be ‘Mind Wide Open’ to the possibilities.

Solution

The Cisco CCNA  Discovery curriculum provides foundational networking knowledge, practical experience, opportunities for career exploration, and soft-skills development to help students prepare for entry-level careers in IT and networking. The curriculum
offers a hands-on approach to learning, and uses interactive tools and easy-to-follow labs to help students learn the general theory needed to build networks.
Cisco CCNA Discovery is designed to be offered as an independent, standalone
curriculum or combined with programs offered by secondary schools, technical schools, colleges,
and universities. Students who enroll in Cisco CCNA Discovery are not expected to have any previous technical skills or knowledge, aside from basic PC skills.

Features

CCNA Discovery allows for quick application of learned concepts to encourage students to consider additional education in IT. It uses easy-to-follow, step-by-step labs that provide detailed instructions and feedback to help students reach the final solution.
CCNA Discovery includes embedded e-doing, highly interactive activities that stimulate learning and improve knowledge retention. E-doing involves rich multimedia, including
Flash-based activities, videos, and interactive quizzes, that address a variety of learning
styles, increase comprehension, and provide a rich learning experience.

Cisco Discovery Course Description

The CCNA Discovery Course curriculum is composed of four courses:
• Networking for Home and Small Businesses
• Working at a Small-to-Medium Business or ISP
• Introducing Routing and Switching in the Enterprise
• Designing and Supporting Computer Networks
The courses are delivered sequentially, and each course is a prerequisite
for the next course.
CCNA Discovery teaches networking based on application covering
the types of practical networks students may encounter, from simple home or small office networks to more complex enterprise models. Students learn the technical skills and soft skills needed to succeed in entry-level networking professions such as a network
installer, help desk technician, pre-sales support technician, or network technician. CCNA Discovery also provides an introduction
to advanced technologies such as voice, video, wireless,
and security

Now , I introduce some course about  Cisco Certified Entry Networking Technician.

Looke here,friend.The table below shows the differents paths and level for the general certification tracks. The specialist certifications are not listed in the table.