Chapter 5. IS-IS Network Design
The Intermediate System-to-Intermediate System (IS-IS) protocol is typically treated as something of a mystery in the IP networking world. Originally developed by the International Organization for Standardization (ISO) (now called the ITU), IS-IS was designed to route connection-oriented network services (CONS) and connectionless network services (CLNS) packets. Although IS-IS is similar to Open Shortest Path First (OSPF) in theory, it is operationally different enough to confuse network designers who are familiar with OSPF but have not studied IS-IS.
This chapter covers many of the same network designs covered in Chapter 4, “OSPF Network Design,” but focuses on how to deploy IS-IS, illustrating some of the differences ...
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