Chapter 10. Intermediate System-to-Intermediate System
Intermediate System-to-Intermediate System (IS-IS) is a routing protocol that is based on an OSI intradomain routing protocol, and is designed for use with the ISO protocol for the Complete Sequence Number Protocol (CSNP) data unit. IS-IS may be used as the Interior Gateway Protocol (IGP) to support TCP/IP, as well as the OSI. IS-IS also can be used to support pure IP environments, pure OSI environments, and multiprotocol environments.
Because it supports both IP and OSI traffic, IS-IS can support traffic to IP hosts, OSI hosts, and multiprotocol end systems. This chapter discusses the following topics related to IS-IS:
Fundamentals and operation of IS-IS IS-IS is a link-state protocol; ...
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