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docs: clarify network mode, tx gossip and NAT (#20247)

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sashass1315
2025-12-10 23:52:04 +02:00
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docs/vocs/docs/pages/sdk/node-components/network.mdx
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@@ -41,15 +41,28 @@ The network uses multiple discovery mechanisms to find and connect to peers:
### Protocol Support
- **ETH Protocol**: Core Ethereum wire protocol for blocks and transactions
### Network Mode
- **PoS networks**: Block broadcasting is disabled and considered a protocol violation. New blocks are obtained from the consensus layer and requested over devp2p.
- **PoW networks**: Block announcements are enabled to help propagate new blocks quickly.
### Message Broadcasting
The network efficiently propagates new blocks and transactions to peers using:
- Transaction pooling and deduplication
- Block announcement strategies
- Bandwidth management
Note: In PoS networks, block broadcasting is disabled and considered a protocol violation. New blocks are obtained via the consensus layer (CL) and requested over devp2p. In PoW mode, block announcements are enabled.
### Transaction Gossip Control
- A `tx_gossip_disabled` flag can be used to disable transaction gossip end-to-end.
- This is useful for private nodes, bandwidth-constrained deployments, or setups that rely on out-of-band transaction ingestion.
### NAT and External IP Resolution
- Optional NAT resolver support helps determine and advertise the correct external IP and port for discovery and inbound connectivity.
## Next Steps
- Learn about the [Transaction Pool](/sdk/node-components/pool)
- Understand [Consensus](/sdk/node-components/consensus) integration
- Explore [RPC](/sdk/node-components/rpc) server setup
- Explore [RPC](/sdk/node-components/rpc) server setup