Routing protocols

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Routing protocols allow different computer networks to communicate. Some commonly used routing protocols are:

  • Router Information Protocol (RIP)
  • Open Shortest Path First (OSPF)
  • Interior Gateway Routing Protocol (IGRP)
  • Enhanced IGRP (EIGRP)
  • Exterior Gateway Protocol (EGP)
  • Border Gateway Protocol (BGP)
  • Intermediate System to Intermediate System (IS-IS)
  • Interdomain Routing Protocol (IDRP)
  • Constrained Shortest Path First (CSPF)

IGRP and EIGRP are proprietary Cisco protocols, and are supported on Cisco routers or other vendors' routers to which Cisco has licensed the technology.

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