Chapter 5 Troubleshooting

Troubleshooting Supervisor Engines

NIC Compatibility Issues

You can have NIC compatibility or misconfiguration issues with the switch if you experience one of these symptoms:

A server or client connection to the switch does not come up

Autonegotiation issues

Errors on the port

The reason for these symptoms can be a known NIC driver issue, speed and duplex mismatch, or autonegotiation or cabling problems. For more troubleshooting information, refer to:

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af0.shtm l

If you still have issues after you review and follow the procedure in the document Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues, contact Cisco Technical Support for further assistance.

Interface Is in Errdisable

If the interface status is err-disable in the output of the show interface status command, some possible reasons include:

Duplex mismatch

Port channel misconfiguration

Bridge protocol data unit (BPDU) guard violation

UniDirectional Link Detection (UDLD) condition

Late-collision detection

Link-flap detection

Security violation

Port Aggregation Protocol (PAgP) flap

Layer Two Tunneling Protocol (L2TP) guard

DHCP snooping rate-limit

In order to troubleshoot these scenarios, refer to the specific feature information in the Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide for your software release.

Faulty Supervisor Engine

If the supervisor engine STATUS LED is red, establish a console connection to the supervisor engine and enter the show diagnostics power-oncommand, if you can. If you are unable to get a console connection or the command output indicates a failure, contact Cisco Technical Support.

If the switch does not boot and fails self diagnostics during the boot sequence, capture the console output of the startup sequence then contact Cisco Technical Support.

If you do not see any hardware failure in the boot sequence or in the output of the show diagnostics power-oncommand, contact Cisco Technical Support.

 

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Cisco Systems WSUPOE12VPSPL, 4500 E-Series NIC Compatibility Issues, Interface Is in Errdisable, Faulty Supervisor Engine

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.