EIGRP

[Saahith Ahamed]

EIGRP is now cisco proprietary protocol or open standard?

[balaji.bandi]

EIGRP is now cisco proprietary protocol or open standard?

it is cisco proprietary, i been hearing other vendors can support, never saw real world example.

i can only see open standard OSPF most use case for cross vendor integration.

[David Ruess]

Hello,

EIGRP is still CISCO proprietary as in CISCO still owns it, however they have released a lot of information on how it works (not everything) so other vendors can implement a lot of features on their devices and provide interoperability. Not all features will be supported by vendors. (Stub feature in EIGRP is a popular example). It is not an open standard.

https://datatracker.ietf.org/doc/html/rfc7868

-David

[Seb Rupik]

Hi there,

There is an RFC for EIGRP (RFC 7868 - Cisco's Enhanced Interior Gateway Routing Protocol (EIGRP) (ietf.org)) which means it is an open standard allowing other vendors to implement it.

However, it is missing the 'stub' feature from this standard which makes the performance of this implementation slower in some topologies.

cheers,

Seb.