Summary

This chapter discussed design considerations, including convergence, span, and growth. You must consider these points before constructing a PNNI peer group. With the initial peer group topology in place, this chapter discussed PNNI parameter optimization with regard to connection routing. The address planning section dove into the topics of hierarchical addressing using public address prefixes, followed by the addressing issues: summarization, suppression, and scope. Because a PNNI network designer is bound by the switch's capabilities and restrictions, this chapter included a section on MSS node typesBPX/SES and MGXand their limitations. The final sections of this chapter covered the redundancy and bandwidth concerns associated with designing a PNNI network to provide end-user services. In case you are migrating from an AR system to a standardized PNNI routing, the final section discussed prudent migration strategies.