Troubleshoot Power over Ethernet on Catalyst 9000 Switches

Scope and location

Document revision: Document 215636, updated 2024-09-05. 1 recorded locator(s) on this underlying document; this count is not independent corroboration.

Platform-scoped read-only observations; intrusive recovery, firmware, power forcing and live electrical work excluded.

General Troubleshooting; No PoE on one/group of ports; ILPOWER POWER DENY; Inline Power & Budget

Open the original source

Inspected

2026-10-23

Access

public page

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Platform-scoped read-only observations; intrusive recovery, firmware, power forcing and live electrical work excluded.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.