Cisco Opens Up EIGRP
Learn how EIGRP makes IPv6 easier to deploy (Video - 2:59 min)
Enhanced Interior Gateway Routing Protocol (EIGRP) is a unique Cisco innovation. Highly valued for its ease of deployment and fast convergence, EIGRP is commonly used in many large Enterprise networks. EIGRP maintains all of the advantages of distance-vector protocols, while avoiding the concurrent disadvantages.
EIGRP is a simple protocol to understand and deploy. It's IPv6-ready, scales effectively in a well-designed network, and provides extremely quick convergence times. Other EIGRP advantages include:
- Easy transition to IPv6 with multi-address family support for both IPv4 and IPv6 networks.
- Superior scaling of Interior Gateway Protocol (IGP) for large dynamic multipoint (DM) VPN deployments
- Very fast rapid convergence times for changes in the network topology
- Only routing table changes, not the entire routing table, are propagated, when a change occurs
- More efficient use of links, through equal cost multipath (ECMP) and unequal cost load sharing
EIGRP is an enhanced distance-vector protocol, relying on the Diffused Update Algorithm (DUAL) to calculate the shortest path to a network.
How Cisco IT simplified network growth with EIGRP.
IT Case Study (PDF - 203 KB)
Read the IETF Draft: Enhanced Interior Gateway Routing Protocol
Packet Pushers Podcast: Listen to show 144 "Open EIGRP With Russ White + Cisco's Donnie Savage" (Podcast 42:29)
Technical Support and Documentation
Review additional information about Enhanced Interior Gateway Routing Protocol (EIGRP) in the Technical Support site area.> Download Software
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