Chapter 5 Troubleshooting the Installation

Troubleshooting the Processor Subsystem

If the LED still fails to come on when the power supply is connected to a different power source with a new power cable, the power supply is probably faulty. If a second power supply is available, install it in the other power supply bay and contact a service representative for further instructions.

Is the PWR OK LED on for the second (redundant) power supply?

If yes, proceed to the “Troubleshooting the Processor Subsystem” section.

If not, repeat each of the preceding procedures for the second power supply.

If you are unable to resolve the problem or you determine that either a power supply or chassis connector is faulty, contact a service representative for instructions.

Troubleshooting the Processor Subsystem

The processor subsystem comprises the I/O controller, network processing engine or network services engine, and all port adapters. The I/O controller and network processing engine or network services engine are required system components. The system cannot operate unless the I/O controller and network processing engine or network services engine are installed properly; however, the system can operate without any port adapters installed as long as none are in partial contact with the midplane pins. A port adapter or Port Adapter Jacket Card that is partially connected to the midplane sends incomplete signals to the processor, which faults the PCI bus and causes the system to hang. Therefore, first ensure that the I/O controller and the network processing engine or network services engine are installed properly and the system software has initialized successfully. Then, if necessary, you can troubleshoot individual port adapters.

Troubleshooting the I/O Controller

The procedures in this section assume that the I/O controller, network processing engine or network services engine, and router itself are in the original factory configuration, and that you have not made changes to your configuration file.

If the I/O controller LEDs do not go on as expected (see the “Identifying Startup Problems” section on page 5-3), check the following items to help isolate the problem.

Do all of the I/O controller LEDs remain off when the system power switch is turned on?

If the LEDs stay off, first see the “Troubleshooting the Power Subsystem” section on page 5-6 and the “Troubleshooting the Cooling Subsystem” section on page 5-10 to ensure that both the fans and the power supply are functioning properly.

If the power supply and fans appear operational but none of the I/O controller LEDs are on, suspect that an improperly connected I/O controller or port adapter has hung the system. Tighten all captive installation screws, and then restart the system.

With the power supply turned off, reseat the I/O controller in its slot and restart the router.

Is the I/O controller ENABLED LED on?

If yes, the system software has initialized successfully, and the system is operational.

If the ENABLED LED remains off, the system detected a processor hardware failure. (This LED should be on in normal operation.) Contact a service representative for instructions.

Cisco 7200 VXR Installation and Configuration Guide

 

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Cisco Systems 7200 VXR manual Troubleshooting the Processor Subsystem, Troubleshooting the I/O Controller

7200 VXR specifications

The Cisco Systems 7200 VXR Series is a robust and highly scalable modular router designed to meet the demands of service providers and enterprises seeking high-performance solutions for their network infrastructures. Launched as part of the Cisco 7200 series, the VXR (Virtual Extensible Routing) variant enhances capabilities while providing effective support for a wide range of applications, including Internet Protocol (IP) routing, Voice over IP (VoIP), and Virtual Private Network (VPN) configurations.

At the core of the 7200 VXR is its modular design, which enables network administrators to customize the router according to their specific needs. The router supports a variety of interface cards, processing engines, and power supply options, ensuring flexibility for diverse network environments. This modularity facilitates easy upgrades and expansions, making it ideal for growing enterprises and service providers looking to future-proof their networks.

One of the standout features of the Cisco 7200 VXR is its impressive routing performance. It can handle a high level of traffic with low latency, which is critical for bandwidth-intensive applications. The router supports a wide array of routing protocols, including Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Integrated Intermediate System-to-Intermediate System (IS-IS), providing versatility for various network topologies.

The 7200 VXR also incorporates advanced features for enhanced security and reliability. With support for IPsec VPNs, it enables secure data transmission across untrusted networks. The router also includes features like Quality of Service (QoS) for prioritizing network traffic, ensuring critical applications receive the bandwidth they require even during peak loads.

In terms of scalability, the Cisco 7200 VXR can support hundreds of thousands of routes and MAC addresses, making it suitable for large metropolitan area networks (MANs) as well as enterprise backbone applications. It also provides the capability to support IPv4 and IPv6 networks, preparing organizations for a transition to next-generation internet protocols.

Additional characteristics of the Cisco 7200 VXR include enhanced manageability through the Cisco IOS software, which offers a comprehensive command-line interface and support for network management protocols. The router is also energy-efficient, with options for redundant power supplies that ensure continuous availability and minimal downtime in mission-critical applications.

Overall, the Cisco Systems 7200 VXR represents a powerful solution that combines performance, scalability, and security, making it an excellent choice for organizations looking to enhance their network capabilities in a rapidly evolving technological landscape.