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Card that shows a switch like its web interface #2
Description
A Lovelace card (own repository, TypeScript/Lit) that draws a switch's front panel: ports in their real layout (odd/even rows, SFP), coloured by link, speed and PoE, with the connected device on hover or click.
Checked existing cards (2026-10-30): none is vendor-neutral, draws a front panel and finds its entities through the registry instead of entity ID patterns (partach/switch_port_card(_pro), bakerkj's fork, OtisPresley/snmp-switch-manager, bluenazgul/unifi-device-card, juju35/ha-switch-card). Ideas worth taking, with attribution (all MIT): the model layouts of unifi-device-card, the calibrated background image with port positions of snmp-switch-manager.
Data contract the integration already keeps for it: one device per switch, port entities with fixed translation_keys (link, speed, device, poe, received, sent, errors) and unique IDs <switch MAC>_<ifIndex>_<key>; the device sensor carries port, if_index, link, speed. Still needed: a WebSocket command managed_switch/ports with the port layout (number, label, medium RJ45/SFP, row), and per-model layouts with a YAML override.
Activity
eizedev commentedon Oct 30, 2026
Done: managed-switch-card v0.1.0 (HACS, type Dashboard) draws a switch's front panel: ports by link and speed, links to other switches, trunk members, PoE, the device on each port, data rates on request, a click opens the device sensor. It reads the ports through the WebSocket command
managed_switch/portsfrom #18 (0.2.0). Docs: https://ha-managed-switch.eize.dev/card/. Follow-ups are in the card's repository: eizedev/managed-switch-card#6, /7, /8; the link symbol ⇄ comes with eizedev/managed-switch-card#9.