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Understanding Session Border Controllers: Comprehensive Guide to Designing, Deploying, Troubleshooting, and Maintaining Cisco Unified Border Element (CUBE) Solutions by Gonzalo Salgueiro, Kaustubh Inamdar, Steve Holl, Chidambaram Arunachalam, Arunachalam Chidambaram, Kyzer Davis, Felipe Garrido

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Chapter 8

Scalability Considerations

The previous chapters provide background on the foundational topics related to SBCs, and this chapter can proceed to a meaningful discussion of the approaches to sizing and scaling SBCs for a desired implementation. This chapter discusses the following major topics as they pertain to scalability and sizing considerations for SBCs:

  • Platform Sizing—This section outlines the factors and constraints that dictate decisions around how to size the SBC platform for the desired environment. Specific sizing guidelines for CUBE are provided for the various supported platforms.

  • Licensing—Because many vendors have implemented licensing mechanisms that are coupled to the quantity of SBC nodes and/or call capacity of the ...

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