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gossip cleanup

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Danny Ryan 2019-10-27 12:38:38 +09:00
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specs/networking/p2p-interface.md
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@ -177,13 +177,13 @@ Additional topics are used to propagate lower frequency validator messages. Thei
#### Interop #### Interop
Unaggregated and aggregated attestations from all shards are sent as `Attestation`s to the `beacon_aggregate_and_proof` topic. Clients are not required to publish aggregate attestations but must be able to process them. All validating clients SHOULD try to perform local attestation aggregation to prepare for block proposing. Unaggregated and aggregated attestations from all shards are sent as `Attestation`s to the `beacon_attestation` topic. Clients are not required to publish aggregate attestations but must be able to process them. All validating clients SHOULD try to perform local attestation aggregation to prepare for block proposing.
#### Mainnet #### Mainnet
Attestation broadcasting is grouped into subnets defined by a topic. The number of subnets is defined via `ATTESTATION_SUBNET_COUNT`. The `CommitteeIndex`, `index`, is assigned to the topic: `index{index % ATTESTATION_SUBNET_COUNT}_beacon_attestation`. Attestation broadcasting is grouped into subnets defined by a topic. The number of subnets is defined via `ATTESTATION_SUBNET_COUNT`. The `CommitteeIndex`, `index`, is assigned to the topic: `committee_index{index % ATTESTATION_SUBNET_COUNT}_beacon_attestation`.
Unaggregated attestations are sent to the subnet topic, `index{attestation.data.index % ATTESTATION_SUBNET_COUNT}_beacon_attestation` as `Attestation`s. Unaggregated attestations are sent to the subnet topic, `committee_index{attestation.data.index % ATTESTATION_SUBNET_COUNT}_beacon_attestation` as `Attestation`s.
Aggregated attestations are sent to the `beacon_aggregate_and_proof` topic as `AggregateAndProof`s. Aggregated attestations are sent to the `beacon_aggregate_and_proof` topic as `AggregateAndProof`s.
@ -196,19 +196,22 @@ Clients MUST reject (fail validation) messages that are over this size limit. Li
The payload is carried in the `data` field of a gossipsub message, and varies depending on the topic: The payload is carried in the `data` field of a gossipsub message, and varies depending on the topic:
| Topic | Message Type | | Topic | Message Type |
|------------------------------|-------------------| |----------------------------------------|-------------------|
| beacon_block | BeaconBlock | | beacon_block | BeaconBlock |
| beacon_aggregate_and_proof | AggregateAndProof | | beacon_aggregate_and_proof | AggregateAndProof |
| index{N}\_beacon_attestation | Attestation | | beacon_attestation\* | Attestation |
| voluntary_exit | VoluntaryExit | | committee_index{N}\_beacon_attestation | Attestation |
| proposer_slashing | ProposerSlashing | | voluntary_exit | VoluntaryExit |
| attester_slashing | AttesterSlashing | | proposer_slashing | ProposerSlashing |
| attester_slashing | AttesterSlashing |
Clients MUST reject (fail validation) messages containing an incorrect type, or invalid payload. Clients MUST reject (fail validation) messages containing an incorrect type, or invalid payload.
When processing incoming gossip, clients MAY descore or disconnect peers who fail to observe these constraints. When processing incoming gossip, clients MAY descore or disconnect peers who fail to observe these constraints.
\* The `beacon_attestation` topic is only for interop and will be removed prior to mainnet.
### Encodings ### Encodings
Topics are post-fixed with an encoding. Encodings define how the payload of a gossipsub message is encoded. Topics are post-fixed with an encoding. Encodings define how the payload of a gossipsub message is encoded.