Appendix G. EIGRP (Enhanced Interior Gateway Routing Protocol)
The following topics are covered in this appendix:
Neighbor Discovery and Recovery
Reliable Transport Protocol
DUAL Finite-State Machine
Protocol-Specific Modules
EIGRP Tables
EIGRP Packet Types
EIGRP Convergence
The Enhanced Interior Gateway Routing Protocol (EIGRP) is an evolution from its predecessor IGRP, resulting from the demands of diverse and large-scale internetworks. EIGRP integrates the capabilities of link-state and distance vector protocols.
EIGRP provides backward compatibility and seamless interoperation with IGRP routers. An automatic-redistribution mechanism allows IGRP routes to be imported into Enhanced IGRP and vice versa, making it possible to migrate EIGRP into an existing ...
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