the-other-dude/.planning/phases/13-link-discovery-registration-ingestion/13-02-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	02	database	alembic sqlalchemy rls wireless-links device-interfaces postgres	phase provides 12-wireless-registration-collection wireless_registrations hypertable and NATS stream	device_interfaces table with MAC-to-device resolution index wireless_links table with link state machine columns DeviceInterface and WirelessLink ORM models LinkState enum (discovered/active/degraded/down/stale)	13-link-discovery-registration-ingestion	added patterns link state machine with missed_polls counter MAC-indexed interface table	created modified backend/alembic/versions/032_device_interfaces_table.py backend/alembic/versions/033_wireless_links_table.py backend/app/models/device_interface.py backend/app/models/wireless_link.py backend/app/models/__init__.py	No backref on DeviceInterface.device relationship -- link discovery reads interfaces, does not navigate from Device to interfaces	LinkState enum: discovered -> active -> degraded -> down -> stale state machine for wireless link health MAC-indexed interface table pattern for cross-device MAC resolution	LINK-02 LINK-03	2min	2026-03-19

Phase 13 Plan 02: Database Schema Summary

Alembic migrations and SQLAlchemy models for device_interfaces (MAC resolution) and wireless_links (AP-CPE state tracking) tables with RLS

Performance

• Duration: 2 min
• Started: 2026-03-19T11:00:46Z
• Completed: 2026-03-19T11:02:22Z
• Tasks: 2
• Files modified: 5

Accomplishments

• device_interfaces table with MAC index for link discovery MAC-to-device resolution
• wireless_links table with state machine columns (state, missed_polls) for AP-CPE tracking
• Both tables have tenant isolation RLS matching codebase convention
• DeviceInterface and WirelessLink models registered in app.models with LinkState enum

Task Commits

Each task was committed atomically:

1. Task 1: Create device_interfaces table migration and ORM model - 7147b15 (feat)
2. Task 2: Create wireless_links table migration, ORM model, and register both models - a71df2a (feat)

Files Created/Modified

• backend/alembic/versions/032_device_interfaces_table.py - device_interfaces table with RLS, MAC index, unique(device_id, name)
• backend/alembic/versions/033_wireless_links_table.py - wireless_links table with state machine, missed_polls, 4 indexes, RLS
• backend/app/models/device_interface.py - DeviceInterface ORM model with device relationship
• backend/app/models/wireless_link.py - WirelessLink ORM model with LinkState enum, ap_device/cpe_device relationships
• backend/app/models/__init__.py - Added DeviceInterface, WirelessLink, LinkState to model registry

Decisions Made

• No backref on DeviceInterface.device relationship -- link discovery reads interfaces directionally, no need to navigate from Device to its interfaces via ORM

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• device_interfaces and wireless_links tables ready for Plan 03's link discovery subscriber
• LinkState enum available for state machine logic in the NATS subscriber
• MAC index on device_interfaces enables efficient MAC-to-device lookups

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