Chapter 3 Message and Recovery Procedures

GBIC Messages

Error Message GBIC-4-NOREAD_VSDATA: Unable to read vendor-specific data for GBIC interface [chars].

Note This message applies only to Catalyst 3550 switches.

Explanation The GBIC module was identified as a Cisco GBIC module, but the system was unable to read the identifying vendor-specific information to verify its authenticity. [chars] is the interface in which the module is installed.

Recommended Action Remove and re-insert the GBIC module. If it continues to fail after re-insertion, it might be defective.

Error Message GBIC-4-NOREAD_VSERNUM: Unable to read serial number for GBIC interface [chars].

Note This message applies only to Catalyst 3550 switches.

Explanation The GBIC module was identified as a Cisco GBIC module, but the system was unable to read the serial number of the GBIC module. [chars] is the interface in which the module is installed.

Recommended Action Remove and re-insert the GBIC module. If it continues to fail after re-insertion, it might be defective.

Error Message GBIC-4-UNRECOGNIZED_EXTTYPE: GBIC interface [chars] has unrecognized extended type.

Note This message applies only to Catalyst 3550 switches.

Explanation The GBIC module was identified as a Cisco GBIC module, but the system does not recognize its reported extended type code. [chars] is the interface in which the module is installed.

Recommended Action Check the list of supported GBIC modules for this version of the system software. An upgrade might be required for newer GBIC modules. Even if the module is unrecognized, it might still operate properly, but perhaps with limited functionality.

Error Message GBIC-4-XCVR_INTERR: Internal error occurred in setup for GBIC interface [chars].

Note This message applies only to Catalyst 3550 switches.

Explanation The system could not allocate resources or had some other problem during the setup for the specified GBIC interface. [chars] is the interface in which the GBIC module is installed.

Recommended Action Reload the switch by using the reload privileged EXEC command. If the problem persists, call your Cisco technical support representative.

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

 

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Cisco Systems 3750 manual Message and Recovery Procedures Gbic 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.