Chapter 4. Sizing Up a Router

This chapter explains what to look for in a given router deployment, based on the levels of performance and scale desired. This chapter also covers the various metrics that you can use to benchmark router performance and scale for the given application.

What to Look for When Choosing a Router

The role of a router is not as straightforward as it was a decade ago (that is, simply routing and switching traffic). The increasing number of IP services being integrated into routing systems introduces a lot of complexity when qualifying the system and understanding the value add.

Characteristic to consider when introducing a new router include the following:

Performance, scale, and high availability: The platform should ...

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