Skip to content

LibraryStorage and networks2017Design paperCorpus record

DEVp2p snappy compression

EIP 706. Péter Szilágyi.

EIP 706, DEVp2p snappy compression. The base networking protocol (DEVp2p) used by Ethereum currently does not employ any form of compression.

Status in the source: Final. A reading of the public specification, not a copy of it and not a certification.

DEVp2p snappy compression is worth reading for the rule it actually adds: The base networking protocol (DEVp2p) used by Ethereum currently does not employ any form of compression.

The five-minute read

The rule

The base networking protocol (DEVp2p) used by Ethereum currently does not employ any form of compression.

What was already failing

A node that cannot fetch, filter, or relay the data it is supposed to validate is not a peer of the network the paper describes.

What the number does not mean

The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it.

What a builder should be able to point at

An implementation either constrains DEVp2p snappy compression or it is a different design.

One action, walked through

  1. Open EIP 706 and read the status line before the examples.
  2. Write down the rule in one sentence. A fair version of that sentence is: The base networking protocol (DEVp2p) used by Ethereum currently does not employ any form of compression.
  3. Name the object that changes: DEVp2p snappy compression.
  4. Ask what an old client, an old contract, or an offline counterparty does. If the document is silent, the silence is part of the design.

The argument, unpacked

What the text is allowed to settle

Ethereum Improvement Proposal 706 can settle the shape of DEVp2p snappy compression. It cannot settle whether a later client, a later fork, or a later wallet still does this.

What this page will not pretend

There is no benchmark, no adoption number, and no claim that the mechanism is safe outside the assumptions written in the source.

What has to be true

  • You are implementing EIP 706 at the status the text itself states: Final.
  • The object that has to change is DEVp2p snappy compression. A neighbouring document with a similar name is not this one.
  • Measurements of delay in one year do not travel with the specification.

What happened after the paper

The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it. Later documents can narrow, replace, or ignore this one. Cite the number you mean.

What to check before you use the idea

  • Which message does DEVp2p snappy compression add, and which old peer must still be answered?
  • What does a node do when the short form fails and the full object is required?
  • Which names are normative: DEVp2p snappy compression?

Terms

EIP 706
The public text titled DEVp2p snappy compression.
Final
The document's own label for how finished the text is. It is not a market fact.

The problem the paper names

A node that cannot fetch, filter, or relay the data it is supposed to validate is not a peer of the network the paper describes.

What the design proposes

  • The base networking protocol (DEVp2p) used by Ethereum currently does not employ any form of compression.
  • This results in a massive amount of bandwidth wasted in the entire network, making both initial sync as well as normal operation slower and laggier.
  • This EIP proposes a tiny extension to the DEVp2p protocol to enable Snappy compression) on all message payloads after the initial handshake.

How the mechanism is specified

  • Taken from the specification, the next constraint is: This results in a massive amount of bandwidth wasted in the entire network, making both initial sync as well as normal operation slower and laggier.
  • Locate DEVp2p snappy compression in EIP 706 and apply it to one transaction or call.
  • Then check the failure the class of rule always has: a node that did not upgrade, a reverted call, a replayed signature, or a peer that does not speak the message.

What this page does not treat as proven

  • A peer protocol is not a consensus rule. A peer can disconnect. A block is still valid or not on its own.
  • Measurements of delay in one year do not travel with the specification.
  • The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it.

Why a venture studio still reads it

Use EIP 706 when a pitch says 'DEVp2p snappy compression' without saying whether the rule is consensus, policy, or an interface. The number is the citation. The pitch is not.

This is Blockchain Lab's reading of a public design paper. It is not the paper, not a copy of it, and not an offer of tokens, equity, custody or a partnership. Later network behaviour can diverge from the text. Nothing here is investment, legal or technical advice.

Research status: Design paper. Last reviewed: 1 October 2026. This is a reading of a public paper, not investment, legal or security advice.