Interface and Hardware Components Configuration Guide, Cisco IOS XE Dublin 17.11.x (Catalyst 9300 Switches) - Configuring Power over Ethernet

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-11/configuration_guide/int_hw/b_1711_int_and_hw_9300_cg/configuring_poe.html

Published

2023-03-28

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• When a Catalyst 9300 denies a PoE power request because of the power budget, it turns off power to the port, generates a syslog message and updates the LEDs. in context
• On Catalyst 9300, the initial PoE allocation for Class 0, 3 and 4 powered devices is 15.4 W. A device that asks for more over CDP or LLDP after startup can be given up to 30 W. in context
• On Catalyst 9300, 'show power inline' shows PoE status and available power, and 'show power inline police' shows power-policing data. 'power inline never' disables powered-device detection on a port. in context

Cite this source record

APA

WarmTransfer. (2023, March 28). Interface and Hardware Components Configuration Guide, Cisco IOS XE Dublin 17.11.x (Catalyst 9300 Switches) - Configuring Power over Ethernet. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cat9300-1711-poe

BibTeX

@misc{warmtransfer-cisco-cat9300-1711-poe,
  title  = {Interface and Hardware Components Configuration Guide, Cisco IOS XE Dublin 17.11.x (Catalyst 9300 Switches) - Configuring Power over Ethernet},
  author = {{WarmTransfer}},
  year   = {2023},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cat9300-1711-poe},
  note   = {Cisco Systems, accessed 2026-10-02}
}