Before we discuss the PPP in CCIE R&S Lab Exam, let’s first gain an overview of the CCIE R&S Lab Exam
CCIE Routing and Switching Lab Exam
The eight-hour lab exam would be testing the candidates’ ability to configure actual equipment and troubleshoot the network in a timed-based testing situation. You are required to must make an initial attempt at the CCIE lab exam within 18-months of clearing the CCIE written exam; else you would have to give the written Exam again. The cost of the CCIE Lab and Practical Exam would be around $1,500 USD per attempt, which excludes the travel as well as lodging expenses. The Costs might vary due to exchange rates as well as local taxes. You are responsible for any fees for your financial institution might charge for completing the payment transaction.
Lab Exam Grading
Each question on the lab would hold a specific criterion. The labs are going to be graded by proctors who would be ensuring the entire criterions are met and points that would be awarded accordingly. Automatic tools would be used for gathering data from the routers by the proctors for playing some preliminary evaluations, however the ultimate determination of an accurate or incorrect configuration
would be done by a trained proctor only. The CCIE R&S lab exam would be consisting of a Troubleshooting section of two-hour and a Configuration section of six-hour.
Before we move on to understand the concept of the PPP, it is recommended that you should find yourself a good training partner, like that of the SPOTO. Gaining hands-on practical experience is much more important than obtaining theoretical knowledge. SPOTO would help you out in all the IT-related certifications.
What is PPP?
PPP Stands for Point-to-Point. It has been defined much later than HDLC hence the robustness of the same would be as compared to the latter. Its unique features would be falling into two categories which are mentioned below:
a) Those, which are needed regardless of the L3 protocols across the link
b) Those specific to each L3 protocol.
The PPP Link Control Protocol otherwise known as PPP LCP would be providing the core features for PPP. PPP utilizes one LCP per link and one Control protocol for each defined L3 protocol on the link. LCP provides a variety of optional features for PPP; such as:-
a) Error Detection :
LCP feature that would be used in this case is Link Quality Monitoring or LQM. LQM exchanges statistics about lost packets compare to that of sent packets in each direction. When compared to bytes and packets sent, this yields a percentage of error traffic. The percentage of loss that causes a link to be taken down would be enabled and could be defined by a configuration setting.
b) Link Looped detection :
LCP feature would be utilized here as the Magic Number. Using different magic numbers routers would be sending messages to each other. If you receive your own magic number, the link is considered to be looped. A configuration setting thus would determine whether the link should be taken down or not once that happens.
c)Multilink PPP :
Fragments of packets which would be loading balanced across multiple links.
If you wish to learn more about the PPP of CCIE Routing and Switching Lab Exam, it is recommended for you to join a good training course, which provides you all the details along with the hands-on practical experience to retain more knowledge. You should get yourself enrolled in SPOTO. They are the best when it comes to the preparation of various IT Related Certifications.