Book Image

Implementing Cisco Networking Solutions

By : Harpreet Singh
5 (1)
Book Image

Implementing Cisco Networking Solutions

5 (1)
By: Harpreet Singh

Overview of this book

Most enterprises use Cisco networking equipment to design and implement their networks. However, some networks outperform networks in other enterprises in terms of performance and meeting new business demands, because they were designed with a visionary approach. The book starts by describing the various stages in the network lifecycle and covers the plan, build, and operate phases. It covers topics that will help network engineers capture requirements, choose the right technology, design and implement the network, and finally manage and operate the network. It divides the overall network into its constituents depending upon functionality, and describe the technologies used and the design considerations for each functional area. The areas covered include the campus wired network, wireless access network, WAN choices, datacenter technologies, and security technologies. It also discusses the need to identify business-critical applications on the network, and how to prioritize these applications by deploying QoS on the network. Each topic provides the technology choices, and the scenario, involved in choosing each technology, and provides configuration guidelines for configuring and implementing solutions in enterprise networks.
Table of Contents (12 chapters)

Connecting to the internet

The internet has become a central part of all businesses. All organizations connect to the internet for web connectivity, email connectivity, and, more recently, moving to cloud service providers, for meeting their data center requirements. Therefore, the links that connect the organization to the internet are a critical part of the WAN infrastructure and are being handled as a separate section.

The internet WAN links carry the traffic from the organization to the World Wide Web (WWW), and vice versa. These links are also sometimes used to create overlay point-to-point tunnels that can be used as backups for important primary links, or even as secure connectivity to smaller branch locations.

The internet WAN link connects the organization to the upstream Internet Service providers (ISPs) that provide internet connectivity. The organization needs public...