Skip to main content

Network Team Update

· 3 min read
Marcin Szamotulski
Marcin Szamotulski
Network Team Lead

Network Update​

Key contributions and advances​

We merged light peer sharing feature, which allows to include inbound peers into outbound governor known peers. This is the primary way for new unregistered nodes to enter the network, which then can be shared using peer sharing. Note that peer sharing is an experimental feature which is disabled until genesis & eclipse evasion as fully implemented. See #3596.

We are making progress reviewing eclipse evasion, #3886.

We fixed another bug in local root peers. We found out that if the local roots where ignored until the first domain name was resolved, see #4583. The bug fix was backported and released in ouroboros-network-0.8.1.1.

We re-started working on dynamically enabling block forging to address issue #3159, which will enable us to release P2P on block producing nodes. See #140.

New cardano-ping / cardano-cli ping release​

We prepared a new release of cardano-ping library which supports the new query feature (query supported versions). See #4589, #4593 and #5313. The new version of cardano-cli ping will use ISO8601 formatted timestamps; also the formatting of ping results is slightly improved, and it will introduce the new --query-versions (-Q) switch. If the remote site supports the query parameter, the command will print:

redacted-ip:port network rtt: 0.064
redacted-ip:port handshake rtt: 0.064010896s
redacted-ip:port Queried versions [NodeToNodeVersionV11 764824073 InitiatorAndResponder,NodeToNodeVersionV10 764824073 InitiatorAndResponder,NodeToNodeVersionV9 764824073 Initiat
orAndResponder,NodeToNodeVersionV8 764824073 InitiatorAndResponder,NodeToNodeVersionV7 764824073 InitiatorAndResponder]

otherwise it will print the negotiation results

redacted-ip:port network rtt: 0.045
redacted-ip:port handshake rtt: 0.101867615s
redacted-ip:port Negotiated version NodeToNodeVersionV10 764824073 InitiatorAndResponder

Note that in that case cardano-cli ping offers InitiatorAndResponder, which allows us to detect whether the remote side is an InitiatorOnly or InitiatorAndResponder. Also cardano-cli ping will no longer announce itself as InitiatorAndResponder, except for the case mentioned above.

Other smaller contributions​

On a request from the Marlow Team, we published haddocks of typed-protocols, which are now available here (#40, #41).

We made a new release of strict-stm-1.1.0.1 on Hackage, which fixed a bug in package description file, #101 .

We also helped to debug a deadlock when using named pipes on Windows in the new RawBearer API. The API is being used to store secret keys only in memory. The PR #4395 is under review.

We also have two more PRs which are under review:

  • #4530: enabling ledger peers on a fixed number of slots before the tip of the chain;
  • #4580: a PR which fixes inconsistencies in one of our cddl specs.