Chapter 5 Troubleshooting the Installation

Troubleshooting Overview

Cooling subsystem—The chassis fan tray is the single component in this subsystem. The fans should be operating whenever system power is on. Replace the fan tray if you determine a fan is not functioning properly.

Processor subsystem—This subsystem includes the I/O controller, network processing engine (NPE) or network services engine (NSE), the Port Adapter Jacket Card, and all port or service adapters. The system memory and management functions reside on the I/O controller and the network processing engine or network services engine. The enabled LED on each port adapter indicates if the port adapter is initialized. A port adapter that is partially installed in the midplane can cause the system to hang and crash.

The following sections help you isolate a problem to one of these subsystems and direct you to the appropriate troubleshooting section.

Identifying Startup Problems

Note When powering on or powering off the router, wait 30 seconds before powering it on or powering it off again.

Startup problems are commonly due to the source power or to a board (network processing engine or network services engine, I/O controller, or port or service adapter) that is dislodged from the midplane. Although an overtemperature condition is unlikely at initial startup, the environmental monitoring functions are included in this chapter because they also monitor internal voltages.

When you start up the router for the first time, you should observe the startup sequence described in the “Starting the System and Observing Initial Conditions” section on page 4-2in Chapter 4, “Observing System Startup and Performing a Basic Configuration.” This section contains a more detailed description of the normal startup sequence and describes the steps to take if the system does not perform that sequence as expected.

With the exception of the fan tray and network processing engine or network services engine, LEDs indicate all system states in the startup sequence. By checking the state of the LEDs, you can determine when and where the system failed in the startup sequence. Use the following descriptions to isolate the problem to a subsystem, and then proceed to the appropriate sections to try to resolve the problem.

Fans Operating

You should immediately hear the fans operating. If not, proceed to the “Troubleshooting the Cooling Subsystem” section on page 5-10. If you determine that the power supply is functioning normally and that a fan is faulty, contact a customer service representative. If a fan does not function properly at initial startup, there are no installation adjustments that you should make.

Power LEDs

The green power OK LED (at the rear of the chassis) should come on immediately when you place the power supply switch in the on () position, and remain on during normal system operation.

If the green power OK LED does not come on, proceed to the “Troubleshooting the Processor

Subsystem” section on page 5-7.

Cisco 7200 VXR Installation and Configuration Guide

 

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Cisco Systems 7200 VXR manual Identifying Startup Problems, Fans Operating, Power LEDs

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.