network update

Author: coot

blog/2025-03-06-network.md

@@ -1,6 +1,6 @@
 ---
 title: Network Team Update
-slug: 2025-04-06-network
+slug: 2025-03-06-network
 authors: [coot]
 tags: [network]
 hide_table_of_contents: false

blog/2025-03-19-network.md

@@ -0,0 +1,85 @@
+---
+title: Network Team Update
+slug: 2025-03-19-network
+authors: [coot]
+tags: [network]
+hide_table_of_contents: false
+---
+
+## Overview of [sprint 83][sprint-83]
+
+### High-level overview
+
+#### SRV support (Cardano, Mithril)
+
+We merged [ouroboros-network#5018] which adds support for SRV in `ouroboros-network`.
+However, we still need to make a decision whether we require that all Cardano
+SRVs start with `_cardano._tcp`, or we leave it open for the future.  The
+former would allow us to use `SRV`s for different applications, e.g.
+`_mithril._tcp` for the mithril diffusion.  If that would be the case then we'd
+prepend `_cardano._tcp` to what we find in the SRV field of a registration
+certificate, e.g. prepend `_cardano._tcp` by `cardano-node`'s diffusion, and
+`_mithril._tcp` by the mithril diffusion.  The other possibility is to extend
+the registration certificate to include the addresses of mithril nodes.
+
+#### Mithril
+
+We started working on a development plan for Mithril diffusion,
+[ref][mithirl-diffusion] (note that this is a work in progress).
+
+We also have been working on moving network-related code from the
+`cardano-node` to the `cardano-diffusion` library in `ouroboros-network`.  In the
+future, this will allow us to share parts of it in the Mithril diffusion [ouroboros-newtork#5082].
+
+#### Documentation
+
+We improved our CDDL specifications by annotating which codecs require definite
+/ in-definite encoding of lists & maps, see [ouroboros-network#5089].
+
+#### Mux
+
+Karl Knutsson ([CF]) has been working on performance improvements in the
+multiplexer (`network-mux` library), [ouroboros-network#5093].
+
+#### Server-side performance considerations
+
+Karl Kntusson ([CF]) noticed a performance bottleneck in the responder
+(server) side of the p2p diffusion layer.  We've started working on addressing
+this issue.
+
+#### Tx-Submission logic
+
+We continued reviewing/improving the `tx-submission` PR [ouroboros-network#4887].
+
+### Pull requests
+
+#### In review
+
+* [**Mux performance improvements**][ouroboros-network#5093]
+
+#### Work in Progress
+
+* [**TX Submission Logic**][ouroboros-network#4887]
+* [**cardano-diffusion sublibrary**][ouroboros-network#5082]
+
+#### Merged
+
+* [**SRV implementation**][ouroboros-network#5018]
+* [**CDDL: comment on definite and indefinite lists/maps**][ouroboros-network#5089]
+* [**LedgerPeers: code cleanup**][ouroboros-network#5089]
+* [**fixed a connection manager test failure**][ouroboros-network#5091]
+* [**Fixed LedgerPeers generators**][ouroboros-network#5092]
+
+[mithril-diffusion]: https://github.com/IntersectMBO/ouroboros-network/wiki/Decentralized-Message-Queue-(DMQ)-Implementation-Overview
+
+
+[sprint-83]: https://github.com/orgs/IntersectMBO/projects/5/views/1?filterQuery=sprint%3A%22Sprint+83%22
+[CF]: https://cardanofoundation.org/
+
+[ouroboros-network#4887]: https://github.com/IntersectMBO/ouroboros-network/pull/4887
+[ouroboros-network#5018]: https://github.com/IntersectMBO/ouroboros-network/pull/5018
+[ouroboros-network#5082]: https://github.com/IntersectMBO/ouroboros-network/pull/5082
+[ouroboros-network#5089]: https://github.com/IntersectMBO/ouroboros-network/pull/5089
+[ouroboros-network#5091]: https://github.com/IntersectMBO/ouroboros-network/pull/5091
+[ouroboros-network#5092]: https://github.com/IntersectMBO/ouroboros-network/pull/5092
+[ouroboros-network#5093]: https://github.com/IntersectMBO/ouroboros-network/pull/5093