Specifications

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Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges
0L-24115-01
Chapter 2 Cisco IOS Commands for Access Points and Bridges
show power-injector
show power-injector
Use the show power-injector privileged EXEC command to view link statistics and the current
operating mode for the two physical Ethernet ports (port 0 and port 1) of a Cisco Aironet power-injector.
show power-injector
Syntax Description This command has no arguments or keywords.
Defaults This command has no defaults.
Command Modes Privileged EXEC
Command History
Usage Guidelines The power injector provides power over Ethernet (PoE) to the access point or bridge.
Port 0 connects to the access point or bridge and port 1 connects to the network switch or router.
The following information is available for each of the two power-injector ports:
• port descriptors (port number, port speed, operating mode:auto, full or half duplex)
• total transmitted and received unicast, broadcast, and multicast packets
• transmit and receive error statistics including collisions, undersized packets and oversized packets
Note This command is supported on Cisco Aironet 1300 and 1400 series access points.
Examples The following example shows a possible display for show power-injector.
• Both ports are operating at full duplex
• Ports 0 and 1 links are up.
Note Only ports 0 and 1 are used in the power-injector. Ports 2, 3, 4, 5 and 6 are not used and will
always display as down or disabled.
Note The Ethernet port of the access point or bridge and the Ethernet port of the network switch or
router that connect to the power-injector should be set to auto-negotiation. This will prevent an
operating mismatch between the power injector, access point and network switch or router.
Release Modification
12.2(11)JA This command was introduced.