Cisco Catalyst 4500 Series Software Configuration Guide

15-15
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 15 Configuring Power over Ethernet
Enhanced Power PoE Support on the E-Series Chassis
The errdisable autorecovery mechanism allows you to configure a timer for errdisable recovery so that
when an interface enters errdisable state (after the timer expires), the interface returns from the
errdisable state.
errdisable detection
By default, errdisable detection for inline-power is enabled, as the following example illustrates:
Switch# show errdisable detect
ErrDisable Reason Detection Mode
----------------- --------- ----
inline-power Enabled port
Note If detection is disabled (through the errdisable detect cause inline-power command), the port is not
placed in errdisable state when it exceeds its power policing threshold.
errdisable recovery
By default, errdisable recovery for inline-power is disabled. To enable errdisable recovery, enter the
errdisable detect cause line-power command:
Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# errdisable detect cause inline-power
Switch(config)# end
Switch# show errdisable recovery
ErrDisable Reason Timer Status
----------------- --------------
----------- ----------
inline-power Enabled
Enhanced Power PoE Support on the E-Series Chassis
The WS-X4648-RJ45V-E, WS-X4648-RJ45V+E, and WS-X4548-RJ45V+ switching modules support
IEEE 802.3af PoE as well as the Cisco proprietary Inline Power standard. With
Cisco IOS Release 12.2(44)SG, the WS-X4648-RJ45V+E line card can also support the IEEE 802.3at
standard with up to 30 W available per-port. The WS-X4648-RJ45V-E line card also supports up to 20
W. The WS-X4548-RJ45V+ switching module is supported with Cisco IOS Release 12.2(50)SG and can
provide up to 30 W of inline power per-port.
For these switching modules, the valid milliwatt ranges for the power inline command have been
increased appropriately for the module, as the following table illustrates:
Line card Standard Max Power/Port Cisco IOS Release
WS-X4648-RJ45V-E IEEE 802.3af
IEEE 802.3at
20 W 12.2(44)SG
WS-X4648-RJ45V+E IEEE 802.3af
IEEE 802.3at
30 W 12.2(44)SG
WS-X4548-RJ45V+ IEEE 802.3af
IEEE 802.3at
30 W 12.2(50)SG

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E