Chapter 5 Troubleshooting

Troubleshooting Supervisor Engines

A bad port

Speed and duplex mismatch

Network interface card (NIC) issues

If you troubleshoot these common reasons and you are not able to narrow down the problem, follow the steps in this section and capture the output of commands at each step, then contact Cisco Technical Support for additional troubleshooting assistance.

Step 1 Power cycle the switch and observe the POST results at bootup.

Step 2 Enter the show diagnostics power-oncommand to verify the POST results from bootup and determine if diagnostics fail again. If diagnostics fail again, the problem is most likely hardware. Contact Cisco Technical Support for further assistance. If the supervisor engine passes the diagnostic tests without any failure after the power cycle in Step 4, perform these steps:

a.Collect the output from the show tech-supportcommand.

b.Remove all power supplies from the box, and collect the serial numbers, Cisco part number, and manufacturer of the power supplies.

c.Contact Cisco Technical Support with the information that you collected.

Note If Cisco Technical Support did not assist with the troubleshoot procedure, you must provide the information in the order of these steps.

Some Problems and Solutions

Module Not Online

Part or all of the module can fail to come online. You may have a module failure if you see an amber or red status LED or if you see one of these statuses in the output of the show module command:

other

faulty

err-disable

power-deny

power-bad

Make sure that the module is properly seated and that you have completely screwed down the module. If the module still does not come online, enter the hw-module slot slot number reset command. If the module still does not come online, try the module in a spare slot, swap the module with the slot of a module that works, or try the module in a different chassis.

If the status is “power-deny,” the switch does not have enough power available to power this module. Enter the show power command in order to confirm whether enough power is available. For more information, refer to the “Environmental Monitoring and Power Management” chapter in the software configuration guide for your software release.

 

Catalyst 4500 E-Series Switches Installation Guide

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Cisco Systems WSUPOE12VPSPL, 4500 E-Series manual Some Problems and Solutions, Module Not Online

4500 E-Series, WSUPOE12VPSPL specifications

Cisco Systems has long been at the forefront of networking technology, consistently delivering innovative products that shape the future of digital communication. Among its extensive range of offerings, the WSUPOE12VPSPL and the Catalyst 4500 E-Series stand out as exemplary solutions tailored for businesses seeking robust, scalable, and versatile network infrastructure.

The WSUPOE12VPSPL is a 12-port Power over Ethernet (PoE) switch that provides significant advantages for organizations looking to streamline their operations. It is designed to deliver power and data over a single cable, reducing the clutter of additional power supplies and cords. This efficiency not only simplifies deployment but also enhances the flexibility to place devices anywhere within the network environment, making it an ideal choice for powering IP phones, wireless access points, and surveillance cameras.

Main features of the WSUPOE12VPSPL include its ability to deliver up to 15.4 watts of power per port, supporting up to 12 PoE devices simultaneously. This capability is especially beneficial in environments where power outlets are scarce or where devices are located in non-traditional locations. With a rugged design suitable for various operational contexts, it ensures reliable performance even under demanding conditions.

When integrated within the Catalyst 4500 E-Series switches, organizations can leverage advanced technologies that enhance overall network performance and security. The Catalyst 4500 E-Series is known for its modularity, allowing businesses to expand their networks as required. Its architecture supports high throughput, advanced QoS features, and extensive Layer 2 and Layer 3 capabilities, ensuring efficient data handling and management.

Moreover, the Catalyst 4500 E-Series can integrate with Cisco’s digital network architecture and software-defined networking (SDN), facilitating automation and better visibility through tools such as Cisco DNA Center. This allows IT administrators to efficiently manage network resources, monitor performance, and implement security policies with ease.

In terms of operational intelligence, the integration with analytics tools enables organizations to gain insights into traffic patterns, user behaviors, and application performance, thus empowering data-driven decision-making.

Overall, the Cisco WSUPOE12VPSPL and the Catalyst 4500 E-Series offer a powerful combination of features, technologies, and characteristics that make them indispensable to modern networking. They cater to the demands of diverse business environments, ensuring reliability, flexibility, and scalability as organizations continue to evolve in an increasingly digital landscape.