Chapter 3 Message and Recovery Procedures

DOT1X_SWITCH Messages

Error Message DOT1X_SWITCH-5-ERR_VLAN_EQ_MDA_INACTIVE: Multi-Domain Authentication cannot activate because Data and Voice VLANs are the same on port [chars]

Explanation Multi-Domain Authentication host mode cannot start if the configured data VLAN on a port is the same as the voice VLAN. [chars] is the port.

Recommended Action Change either the voice VLAN or the access VLAN on the interface so that they are not equal. This causes Multi-Domain authentication to start.

Error Message DOT1X_SWITCH-5-ERR_VLAN_EQ_VVLAN: Data VLAN [dec] on port [chars] cannot be equivalent to the Voice VLAN.

Explanation An attempt was made to assign a data VLAN to an IEEE 802.1x port that is the same as the voice VLAN. [dec] is the VLAN, and [chars] is the port.

Recommended Action Change either the voice VLAN or the access/IEEE 802.1x-assigned VLAN on the interface so that they are not equal. This causes the authentication to proceed normally on the next retry.

Error Message DOT1X_SWITCH-5-ERR_VLAN_INTERNAL: Attempt to assign internal VLAN [dec] to 802.1x port [chars]

Explanation An attempt was made to assign an invalid VLAN to an IEEE 802.1x port. The VLAN specified is used internally and cannot be assigned to this port. [dec] is the VLAN, and [chars] is the port.

Recommended Action Update the configuration to not use this VLAN.

Error Message DOT1X_SWITCH-5-ERR_VLAN_INVALID: Attempt to assign invalid VLAN [dec] to 802.1x port [chars]

Explanation An attempt was made to assign an invalid VLAN to an IEEE 802.1x port. The VLAN specified is out of range and cannot be assigned to this port.[dec] is the VLAN, and [chars] is the port.

Recommended Action Update the configuration to use a valid VLAN.

Error Message DOT1X_SWITCH-5-ERR_VLAN_NOT_FOUND: Attempt to assign non-existent or shutdown VLAN [dec] to 802.1x port [chars]

Explanation An attempt was made to assign a VLAN to an IEEE 802.1x port, but the VLAN was not found in the VTP database. [dec] is the VLAN, and [chars] is the port.

Recommended Action Make sure that the VLAN exists and is not shut down, or use another VLAN.

Catalyst 3750, 3560, 3550, 2975, 2970, and 2960 Switch System Message Guide

 

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Cisco Systems 3750 manual Message and Recovery Procedures DOT1XSWITCH Messages

3750 specifications

The Cisco Systems 3750 series is a family of enterprise-class stackable switches that were designed to provide high-performance networking solutions for organizations requiring robust management features, security, and scalability. Known for their reliability and advanced capabilities, the 3750 series is particularly aimed at accommodating the demands of LAN environments in organizations ranging from small businesses to large enterprises.

One of the defining features of the Cisco 3750 series is its StackWise technology. This innovative feature enables the stacking of up to nine switches together, allowing them to function as a single logical unit. This results in simplified management, higher redundancy, and increased scalability. The StackWise technology allows for seamless failover and enhanced bandwidth between the stacked switches.

In terms of performance, the 3750 series supports Layer 2 and Layer 3 switching, offering routing capabilities to handle both traditional and modern network demands. It is equipped with advanced Quality of Service (QoS) features, ensuring that critical applications such as voice and video are prioritized for optimal performance.

The Cisco 3750 also features extensive security capabilities. It incorporates features such as IEEE 802.1X authentication, DHCP snooping, and dynamic ARP inspection to protect against unauthorized access and various network attacks. These enhancements help maintain data integrity and secure communications across the network.

Another noteworthy characteristic of the 3750 series is its support for Power over Ethernet (PoE). PoE allows for the delivery of power over Ethernet cables to connected devices, such as IP phones and wireless access points, facilitating simpler installations and reducing the need for additional power outlets.

The Cisco 3750 series also provides a comprehensive set of management tools. With features like Cisco's Embedded Event Manager (EEM) and extensive SNMP support, network administrators can efficiently monitor and manage network performance, troubleshoot issues, and maintain high availability.

Additionally, the series is compatible with Cisco's IOS software, which provides a rich set of features, including advanced routing protocols, multicast support, and extensive security options, further enhancing the functionality and versatility of the switches.

Overall, the Cisco Systems 3750 series stands out for its stackable design, high-performance features, security capabilities, and management tools, making it a popular choice for organizations looking for dependable and scalable networking solutions.