A competent network design is the basis for a successful network implementation, but the heterogeneous nature of...
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modern applications has made the design of IP networks more challenging than ever before. Along with traditional data applications, customers rely on their IP networks for real-time applications such as voice, video and multimedia. This Learning Guide delves into the various aspects of network design to help value-added resellers (VARs) and systems integrators build predictable and consistent IP networks for their customers.
- Tip: The importance of a network design plan
There are the networks that have clearly been well designed and there are those that have been pieced together over time. A network that has been well designed is characterized by predictability and consistency, as demonstrated in this tip.
- Tip: Achieving network design objectives
The network design process should be driven by a set of objectives. This tip will help you identify and achieve appropriate objectives when designing your customers' IP-based networks.
- Tip: Network design principles
Adhering to key principles that contribute to a successful network design can save you from making easily avoidable mistakes. This tip outlines best practices for designing IP-based networks.
- Tip: Formulating a scalable IP addressing plan
A scalable IP addressing plan will support your customer's network as it grows. This tip explains how to use variable-length subnet masking (VLSM) and route summarization to create a scalable IP addressing plan.
- Tip: IP address planning: Choosing a routing protocol
Choosing the appropriate routing protocol is critical to an IP addressing plan. This tip explores the parameters used to evaluate the suitability of a routing protocol. The different characteristics of IP routing protocols are described along with the operation of industry standard protocols such as RIP and OSPF.
- Tip: Designing a WAN infrastructure
The WAN is the single biggest contributor to a corporate network's cost of ownership. Therefore, this is the area where the cost-versus-performance tradeoff is most pronounced and most critical. This tip explores the various alternatives that must be evaluated when choosing and designing your customer's WAN infrastructure.
- Tip: Designing a campus LAN
This tip explores the issues encountered with campus LAN design, including the techniques for ensuring a scalable and resilient campus network design.