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Building Resilient IP Networks: The Access Module

Chapter Description

This chapter focuses on Ethernet switching technology, specifically Layer 2 network resiliency and how it should be built to provide a solid foundation for the Layer 3 network.


The access module deals mainly with Ethernet switch technology. As long as the intricacy of the STP protocol is well understood, it is possible to build a robust Layer 2 network in this module. Keeping the Layer 2 design simple and predictable is perhaps the best insurance for building a resilient IP network within the access module. The same principle applies to the Layer 3 domain. By adopting the best practices, you can improve the resiliency of the network and avoid unnecessary downtime.