In the CCNP 350-401 ENCOR exam, there are several design topics that need to be addressed to achieve a successful network design. Among these are Tier 2, Tier 3, and Fabric Capacity planning. Understanding the fundamental concepts of each of these areas is essential for any CCNP 350-401 candidate.
Tier 2 Network Design
The Tier 2 network design is used when a business wants to keep traffic within the organization at a reasonable speed. A Tier 2 network is used when the network is of medium size and contains medium-sized applications. It is used to provide an efficient and secure network environment. A tier 2 network typically consists of a layer-3 switch and router. It may also include a layer-4 switch and a layer-5 router for additional security. It may also contain a firewall, intrusion detection, virtual private networks (VPNs), and Quality of Service (QoS) devices. Each layer supplies a specific set of services that help the Tier 2 network design. For example, the layer-3 switch provides routing services to help route traffic from one network segment to another. The layer-4 switch provides access control lists (ACLs) and Quality of Service (QoS) to ensure that certain types of traffic are treated with higher priority. The layer-5 router is used to ensure that only authorized users can access the network.
Tier 3 Network Design
The Tier 3 network design is used when a business needs to scale the size and complexity of their network. It is typically used to provide the most secure environment possible and ensure the highest availability of network resources. A Tier 3 network consists of multiple switches, routers, and other devices, and it may also include a firewall and intrusion detection system. It typically includes two core routers, two distribution routers, and multiple access routers. The core routers are responsible for routing traffic between different distribution routers, while the distribution routers are responsible for routing traffic from the access routers. The access routers are responsible for providing users with access to the network. They are typically connected to the distribution routers, and they are responsible for providing users with access to the applications, services, and resources that the network provides.
Fabric Capacity Planning
Fabric capacity planning is an essential part of any successful network design. It is used to ensure that the network is capable of handling the traffic that is generated by the users of the network. It is also used to ensure that the network is secure and reliable. Fabric capacity planning involves analyzing the current network structure, traffic patterns, and the expected future traffic. It also involves determining what type of equipment and resources are needed to ensure that the network is capable of handling the expected traffic. This includes analyzing the current network and identifying which components of the network need to be upgraded or replaced. Once the capacity planning is complete, the network administrator must ensure that the equipment and resources that are needed are properly and securely configured. This includes ensuring that the proper security protocols are in place, such as encrypted connections, firewalls, and intrusion detection systems. The administrator also needs to ensure that all of the components of the network are working together in a harmonious and secure manner.
Conclusion
Achieving a successful network design for the CCNP 350-401 ENCOR exam involves understanding the fundamentals of Tier 2, Tier 3, and Fabric Capacity planning. Understanding the components of each of these areas is essential for any CCNP 350-401 candidate. With the proper understanding and implementation of these components, the CCNP 350-401 candidate will be able to successfully design a secure, reliable, and efficient network.
Oh, and apparently it's cool to include jokes in these kinds of articles -- so here's one: What did the network technician say when they finished their project on time? "Well, tier-me!