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17ee40b39b
Each individual blob currently uses as much quota from the network limit as an entire block does, 128 items per second shared across all peers. Blobs are 128 KB each instead of up to several MB and are simpler to encode. There can be multiple per block (6 currently), so allow 2000 blobs per second across all peers. That decreases the cost per block from `3125 + 3125 * blobs.len` quota (= `[3125, 21875]`) to a lower `3125 + 200 * blobs.len` quota (= `[3125, 4325]`), accounting for the slight increase in data transfer and encoding time.
Networking
This folders hold a collection of modules to:
- configure the Eth2 P2P network
- discover, connect, and maintain quality Eth2 peers
Data received is handed other to the ../gossip_processing modules for validation.
Security concerns
- Collusion: part of the peer selection must be kept random. This avoids peers bringing all their friends and colluding against a beacon node.
- Denial-of-service: The beacon node must provide ways to handle burst of data that may come:
- from malicious nodes trying to DOS us
- from long periods of non-finality, creating lots of forks, attestations, forks