IS IS LSPDB Synch

Introduction

This is the process of synchronizing the ISIS database.

ISIS LSPDB

Newer LSPs

  • Newer are accepted over older.
  • On point to point links, newer LSPs are flooded periodically until they are ACKed.
  • On multiaccess links, newer LSPs are flooded……(more info on the DIS interation).

Older LSPs

  • IS floods the newer LSPs only to the interface that received the older LSP.

Same LSPs

  • Those are ignored.

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