EIP-2364: eth/64: forkid-extended protocol handshake

[karalabe]

This is a discussion thread for #2364

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Abstract

The forkid (EIP-2124) was designed to permit two Ethereum nodes to quickly and cheaply decide if they are compatible or not, not only at a genesis/networking level, but also from the perspective of the currently passed network updates (i.e. forks).

EIP-2124 only defined how the forkid is calculated and validated, but due to the numerous possible applications, it did not itself spec out how the forkid should be exchanged between peers. This current EIP requests the inclusion of the forkid as a new field in the Ethereum wire protocol (eth) handshake (releasing a new version, eth/64).

By cross validating each others' forks already during the handshake, incompatible nodes can disconnect before expensive block exchanges and validations take place (PoW check, EVM execution, state reconstruction). This furher prevents peer slots from being taken up by nodes that are incompatible, but have not yet been detected as such.

[fjl]

Spec update: ethereum/devp2p#132

[lithp]

I haven't been following along very closely, so I'm sorry that this is a dumb question!

But, I believe this spec is not only implemented but it's already deployed to the network. Why is this still in the Draft status? It ought to be Final, there's no changing it now!

I also have the same question for eth/65: #2465

[github-actions]

There has been no activity on this issue for two months. It will be closed in a week if no further activity occurs. If you would like to move this EIP forward, please respond to any outstanding feedback or add a comment indicating that you have addressed all required feedback and are ready for a review.