Weekly update

Week of 2026-03-02

Real best-path selection landed, along with outbound route tracking and a round of CLI/editor polish.

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🛰️ Routing

  • On-demand best-path selection in the RIB (rib show best), covering LOCAL_PREF, AS_PATH length, ORIGIN, MED, eBGP/iBGP preference, ORIGINATOR_ID, and peer-address tiebreak per RFC 4271 §9.1.2
  • A new persistence plugin tracks outbound routes per peer, retaining cache entries on send and releasing them on withdrawal, then replays the full outbound set with End-of-RIB markers on reconnect
  • Graceful Restart Receiving Speaker support (RFC 4724 §4.2), with ADD-PATH state now threaded correctly through the format pipeline (RFC 7911)
  • Fixed a watchdog bug where routes configured as withdrawn were being announced anyway on first session
  • FSM state transitions now cover the full RFC 4271 §8.2.2 table

🖥️ CLI & editor

  • New ze show and ze run split: read-only commands vs. everything including destructive ones, each RPC now declares its own safety level
  • Dual-mode config editor (edit/command mode switching), ze config set with YANG validation and --dry-run, and ze config edit now offers to create a missing config file instead of failing
  • Command history (up/down arrow), "did you mean?" suggestions across CLI dispatch, --json output for schema commands, and shell completion for bash and zsh
  • New operational commands: bgp summary, peer capabilities, peer clear soft, and config diff (text and JSON)
  • Fixed a capability-negotiation bug where comparisons only checked byte counts instead of actual wire bytes

🛠️ Under the hood

Panic recovery now wraps every long-lived BGP goroutine (peer loop, delivery, listener, reactor monitor): a fault inside one peer tears down and re-establishes that session instead of crashing the daemon. Builds now report a version (YY.MM.DD) and build date.