Chapter 3. Addressing and Routing Design Considerations

Summarizable IP addressing is critical when constructing scalable routed networks. This includes creating specific strategies for designing scalable solutions using Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF) Protocol, and Border Gateway Protocol (BGP).

Designing IP Addressing

Good IP addressing design uses summarizable blocks of addresses that enable route summarization and provides a number of benefits:

  • Reduced router workload and routing traffic
  • Increased network stability
  • Faster convergence
  • Significantly simplified troubleshooting

Creating and using summary routes depends on the use of summarizable blocks of addresses. Sequential numbers in an ...

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