Network Team Update

High-level overview of sprint 55

This sprint the networking was nominated for the Cardano Release Engineer role and we've been working on the integration of bootstrap peers with cardano-node. This is a work in progress: cardano-node-5485. cardano-node-8.9 will be the first node which supports the bootstrap peers feature, but we anticipate additional improvements needed before this is used at scale.

We disabled mean reward for new peers in the churn mechanism which was hurting connection in remote destinations. Thanks to Karl Knutsson (CF) for providing evidence and a patch. In future, this mechanism will be further changed, but this requires more analysis. ouroboros-network#4800

We continued working on tx-submission, ouroboros-network#3311

We welcome Marcin Wójtowicz as part of the Networking Team of Cardano Core Tech. He reviewed our documentation as part of his onboarding process: ouroboros-network#4802.

Andrew Westberg (DripDropz) corrected documentation regarding which node-to-node protocol version introduced P2P.

Low-level summary

• We fixed an issue related to local root peers related to bootstrap peers: ouroboros-network#4799.

Open Source Contributions

IOSim

We released io-sim-1.4.1.0 with some new features & improvements:

• QuickCheck monadic combinators: io-sim#140.
• Provide PrimMonad instance: io-sim#141, thanks to Duncan Coutts (Well-Typed).
• Fixed threadDelay in the presence of registerDelays: io-sim#143, thanks to Consensus Team.