Route Selection Feature Overview and Configuration Guide

Understanding the route selection process helps in analyzing and troubleshooting route-related problems. As part of describing route selection, this document describes:

  • Routing Information Base (RIB)
  • Forwarding Information Base (FIB)
  • Equal Cost Multipath Routing (ECMP).

It also describes features of static routes, including using administrative distance and weighted lottery mode to enable the device to choose the most desirable route.