Skip to content

EIP-8148 -- Networking

Note: This document is a work-in-progress for researchers and implementers.

Introduction

This document contains the consensus-layer networking specifications for EIP-8148.

The specification of these changes continues in the same format as the network specifications of previous upgrades, and assumes them as pre-requisite.

Modifications in EIP-8148

Helpers

Modified compute_fork_version

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
def compute_fork_version(epoch: Epoch) -> Version:
    """
    Return the fork version at the given ``epoch``.
    """
    if epoch >= EIP8148_FORK_EPOCH:
        return EIP8148_FORK_VERSION
    if epoch >= HEZE_FORK_EPOCH:
        return HEZE_FORK_VERSION
    if epoch >= GLOAS_FORK_EPOCH:
        return GLOAS_FORK_VERSION
    if epoch >= FULU_FORK_EPOCH:
        return FULU_FORK_VERSION
    if epoch >= ELECTRA_FORK_EPOCH:
        return ELECTRA_FORK_VERSION
    if epoch >= DENEB_FORK_EPOCH:
        return DENEB_FORK_VERSION
    if epoch >= CAPELLA_FORK_EPOCH:
        return CAPELLA_FORK_VERSION
    if epoch >= BELLATRIX_FORK_EPOCH:
        return BELLATRIX_FORK_VERSION
    if epoch >= ALTAIR_FORK_EPOCH:
        return ALTAIR_FORK_VERSION
    return GENESIS_FORK_VERSION

The gossip domain: gossipsub

Topics and messages

Global topics
Modified beacon_block

[Modified in EIP8148]

Added in EIP8148:

  • [REJECT] The count of block.body.parent_execution_requests.sweep_thresholds is within its limit -- i.e. validate that len(block.body.parent_execution_requests.sweep_thresholds) <= MAX_SET_SWEEP_THRESHOLD_REQUESTS_PER_PAYLOAD.
Modified execution_payload

[Modified in EIP8148]

Added in EIP8148:

  • [REJECT] The count of execution_requests.sweep_thresholds is within its limit -- i.e. validate that len(execution_requests.sweep_thresholds) <= MAX_SET_SWEEP_THRESHOLD_REQUESTS_PER_PAYLOAD, with the alias execution_requests = envelope.execution_requests.