|  | 1.4 | Routing Protocol
| 1.4.7 | Interior IP routing protocols
At the internet layer of the TCP/IP suite of protocols, a router can use an IP routing protocol to accomplish routing through the implementation of a specific routing algorithm. Examples of IP routing protocols include: RIP-A distance vector routing protocol. IGRP-Cisco's distance vector routing protocol. OSPF-A link-state routing protocol. Enhanced IGRP-A balanced hybrid routing protocol.