the-other-dude/.planning/phases/13-link-discovery-registration-ingestion/13-01-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
13-link-discovery-registration-ingestion	01	poller	routeros nats interfaces mac-address link-discovery go	phase provides 12-wireless-registration-collection NATS publisher pattern, WIRELESS_REGISTRATIONS stream, withTimeout wrapper	InterfaceInfo struct with name, MAC, type, running fields CollectInterfaceInfo function for RouterOS /interface/print DeviceInterfaceEvent NATS publisher on device.interfaces.{device_id} DEVICE_EVENTS stream includes device.interfaces.> subject	13-link-discovery-registration-ingestion link-state-machine topology-map	added patterns interface-identity-collector mac-normalization	created modified poller/internal/device/interfaces.go poller/internal/device/interfaces_test.go poller/internal/bus/publisher.go poller/internal/poller/worker.go	MAC addresses lowercased at collection time for consistent downstream matching Entries without mac-address skipped (loopback, bridge without MAC) Interface info collected separately from traffic counters (InterfaceInfo vs InterfaceStats)	MAC normalization: all MAC addresses lowercased at the collection layer before publishing InterfaceInfo vs InterfaceStats: identity data (link discovery) separate from traffic counters (metrics)	LINK-01	5min	2026-03-19

Phase 13 Plan 01: Interface Info Collector Summary

Go poller InterfaceInfo collector publishing MAC addresses to DEVICE_EVENTS NATS stream for link discovery

Performance

• Duration: 5 min
• Started: 2026-03-19T11:00:38Z
• Completed: 2026-03-19T11:06:20Z
• Tasks: 2
• Files modified: 4

Accomplishments

• InterfaceInfo struct and CollectInterfaceInfo function collect name, MAC, type, running from /interface/print
• MAC addresses lowercased at collection time for consistent downstream link resolution
• DeviceInterfaceEvent publisher sends to device.interfaces.{device_id} on DEVICE_EVENTS stream
• Wired into PollDevice cycle after traffic counters, before health metrics

Task Commits

Each task was committed atomically:

1. Task 1: Create interface info collector with v6/v7 routing - 4b5bb94 (test) + 6939584 (feat)
2. Task 2: Add DeviceInterfaceEvent publisher, update DEVICE_EVENTS stream, wire into PollDevice - 397a33a (feat)

Note: Task 1 used TDD with separate test and implementation commits

Files Created/Modified

• poller/internal/device/interfaces.go - InterfaceInfo struct, CollectInterfaceInfo function, MAC normalization (added alongside existing InterfaceStats)
• poller/internal/device/interfaces_test.go - Unit tests for struct fields, MAC lowercasing, running bool parsing
• poller/internal/bus/publisher.go - DeviceInterfaceEvent type, PublishDeviceInterfaces method, device.interfaces.> added to DEVICE_EVENTS stream
• poller/internal/poller/worker.go - Interface info collection wired into PollDevice after traffic counters

Decisions Made

• MAC addresses lowercased at collection time (strings.ToLower) so downstream consumers never need to normalize
• Entries without mac-address are silently skipped (loopback, bridge without MAC are not useful for link discovery)
• InterfaceInfo is a separate type from InterfaceStats -- identity data for link discovery vs traffic counters for metrics
• Collection placed after traffic counters, before health metrics in PollDevice to group interface-related work

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Restored InterfaceStats collector overwritten during file creation

• Found during: Task 1
• Issue: Creating interfaces.go overwrote the pre-existing InterfaceStats type and CollectInterfaces function that publisher.go and worker.go depend on
• Fix: Restored InterfaceStats and CollectInterfaces, appended new InterfaceInfo types below
• Files modified: poller/internal/device/interfaces.go
• Verification: go build ./... succeeds
• Committed in: 6939584 (Task 1 commit)

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Total deviations: 1 auto-fixed (1 blocking) Impact on plan: File creation overwrote existing code; restored immediately. No scope creep.

Issues Encountered

None beyond the deviation noted above.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Interface MAC data now published to NATS on every poll cycle
• Backend subscriber (Plan 03) can consume device.interfaces.> to populate device_interfaces table
• Link discovery (Plan 02) can match registration MACs against interface MACs for topology resolution

Self-Check: PASSED

All 4 files verified present. All 3 commits verified in git log.

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Phase: 13-link-discovery-registration-ingestion Completed: 2026-03-19