Cisco Catalyst 4500 Series Message Guide

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Catalyst 4500 Series Switch Cisco IOS System Message Guide Release 12.2(31)SGA
OL-11541-01
Chapter 2 Messages and Recovery Procedures
DOT1X (802.1X) Messages
Error Message DHCP_SNOOPING-6-VLAN_NOT_SUPPORTED: Vlan not supported. [dec] bindings
ignored.
Explanation
The VLAN is not supported by DHCP snooping.
Recommended Action This is an informational message only. No action is required.
DOT1X (802.1X) Messages
This section contains the IEEE 802.1X-related (DOT1X) port-based authentication messages.
DOT1X-4
Error Message DOT1X-4-MEM_UNAVAIL:Memory was not available to perform the 802.1X
action
Explanation
Due to a lack of memory 802.1X cannot perform authentication, so it will not be
enabled.
Recommended Action Reduce other system activity to ease memory demands. Install more memory,
if necessary.
Error Message DOT1X-4-MSG_ERR: Unknown message event received
Explanation
Due to an unexpected event the 802.1X process received an unknown message.
Recommended Action Restart 802.1X by entering the dot1x system-auth-control command in case
the condition is transient. If the restart fails, reload the device.
Error Message DOT1X-4-PROC_START_ERR: DOT1X unable to start
Explanation
For unknown reasons 802.1X cannot start.
Recommended Action Restart 802.1X by entering the dot1x system-auth-control command in case
the condition is transient. If the restart fails, reload the device.
Error Message DOT1X-4-UNKN_ERR: An unknown operational error occurred
Explanation
Due to an unexpected internal error 802.1X cannot operate.
Recommended Action Reload the device.

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