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Integrated IS-IS Commands for CCNP BSCI

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This chapter provides information and commands concerning a wide range of Intermediate System-to-Intermediate System (IS-IS) topics related to the CCNP BSCI exam.
This chapter is from the book

This chapter is from the book

This chapter provides information and commands concerning the following Intermediate System-to-Intermediate System (IS-IS) topics:

  • ISO Network Entity Title (NET)
  • Rules for creating a NET
  • Examples of NETs: Cisco implementation
  • Basic IS-IS configuration
  • Neighbors and timers
  • Election of the designated IS (DIS)
  • Rules for IS-IS adjacencies
  • Routing metrics
  • Wide metrics
  • Manual summarization
  • Injecting default routes
  • Defining router types
  • Verifying integrated IS-IS routing
  • Configuration example: Multi-area IS-IS

ISO Network Entity Title (NET)

Figure 4-1 shows three of the different formats that an ISO NET can take:

  • (a) An 8-octet area IS/system ID format
  • (b) An OSI NSAP format
  • (c) A GOSIP NSAP format
Figure 4-1

Figure 4-1 Formats for ISO NET

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