Chapter 3 Message and Recovery Procedures

STORM_CONTROL Messages

Error Message STACKMGR-5-MASTER_READY: Master Switch [dec] is READY.

Note This message applies only to Catalyst 3750 and 2975 switches.

Explanation The stack master is ready for use. [dec] is the stack master switch number.

Recommended Action No action is required.

Error Message STACKMGR-5-SWITCH_READY: Switch [dec] is READY.

Note This message applies only to Catalyst 3750 and 2975 switches.

Explanation The switch is ready. [dec] is the switch number.

Recommended Action No action is required.

STORM_CONTROL Messages

This section contains the storm control messages.

Error Message STORM_CONTROL-3-FILTERED: A [chars] storm detected on [chars]. A packet filter action has been applied on the interface.

Note This message applies to Catalyst 3750, 3560, 2975, 2970, and 2960 switches.

Explanation The amount of traffic detected on the interface has exceeded the configured threshold values. The system is filtering the excess traffic. The first [chars] is the traffic type, and the second [chars] is the interface.

Recommended Action Determine and fix the root cause of the excessive traffic on the interface.

Error Message STORM_CONTROL-3-SHUTDOWN: A packet storm was detected on [chars]. The interface has been disabled.

Note This message applies to Catalyst 3750, 3560, 2975, 2970, and 2960 switches.

Explanation The amount of traffic detected on the interface has exceeded the configured threshold values. Because the interface is configured to shut down if a packet storm event is detected, it has been placed in an error-disabled state. [chars] is the affected interface.

Recommended Action You can enable error-disabled recovery by using the errdisable recovery global configuration command to automatically re-enable the interface. You should determine and fix the root cause of the excessive traffic on the interface.

 

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

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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.