fc724b21e8
To further tighten Nimbus against spam, this PR introduces a global quota for block requests (shared between peers) as well as a general per-peer request limit that applies to all libp2p requests. * apply request quota before decoding message * for high-bandwidth requests (blocks), apply a shared global quota which helps manage bandwidth for high-peer setups * add metrics |
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| .. | ||
| README.md | ||
| eth2_discovery.nim | ||
| eth2_network.nim | ||
| libp2p_json_serialization.nim | ||
| network_metadata.nim | ||
| peer_pool.nim | ||
| peer_scores.nim | ||
| topic_params.nim | ||
README.md
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