F I N A L D R A F T — C i s c o C o n f i d e n t i a l

C H A P T E R 6

Troubleshooting the Cisco IOS XR Software

This chapter offers tools and procedures that identify the source of hardware and software problems. This chapter also provides instructions on gathering data for further analysis by Cisco customer support .

Contents

•Additional Sources for Information, page 6-1

•Basic Troubleshooting Commands, page 6-1

•Configuration Error Messages, page 6-6

•Memory Warnings in Configuration Sessions, page 6-7

•Interfaces Not Coming Up, page 6-11

Additional Sources for Information

For additional information on troubleshooting, see the following sources:

•If the Cisco IOS XR Software does not start and display the EXEC mode prompt, see Cisco ASR 9000 Series Aggregation Series Router ROM Monitor Guide.

•The Cisco Technical Assistance Center (Cisco TAC) home page, containing 30,000 pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

http://www.cisco.com/public/support/tac/home.shtml

•The “Related Documents” section on page viii.

Basic Troubleshooting Commands

The following sections describe some basic techniques used to determine connectivity to another device and display information on the configuration and operation of a router.

•Using show Commands to Display System Status and Configuration, page 6-2

•Using the ping Command, page 6-2

•Using the traceroute Command, page 6-3

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

 

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Cisco Systems ASR 9000, A9K24X10GETR, A9KMOD80TR manual Additional Sources for Information, Basic Troubleshooting Commands
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A9KMOD80TR, A9K24X10GETR, ASR 9000 specifications

Cisco Systems has long been a leader in networking technology, providing cutting-edge solutions for service providers and enterprise organizations alike. Among their standout products is the Cisco ASR 9000 Series Aggregation Services Routers, notably the A9K24X10GETR and the A9KMOD80TR models. These routers are engineered to deliver unmatched performance, scalability, and versatility for networks that require high bandwidth and low latency.

The Cisco ASR 9000 Series is built for the needs of today's complex service provider and enterprise networks. A significant feature of the A9K24X10GETR is its 24-port 10-Gigabit Ethernet module. This functionality allows for high-density connectivity, making it ideal for aggregating numerous connections to different parts of a network while maintaining optimal performance. Whether used for Internet service providers delivering high-speed connectivity or for enterprises looking to connect multiple branches, the A9K24X10GETR provides robust and reliable data transmission.

Further enhancing the capabilities of the ASR 9000 is the A9KMOD80TR module, which supports an extensive range of services. This module is designed to run a variety of technologies, including Layer 2 and Layer 3 services, MPLS (Multiprotocol Label Switching), and IPv6. Its ability to integrate seamlessly into existing infrastructures while providing the advanced features customers demand makes it an invaluable asset for network engineering teams.

Another cutting-edge technology present in the ASR 9000 Series is its support for eBGP (External Border Gateway Protocol), which plays a critical role in managing traffic across multiple networks. The routers are equipped with advanced telemetry features, empowering operators with real-time insights into network performance and health. Additionally, they come with integrated security features that protect against DDoS threats and other vulnerabilities.

In summary, Cisco's ASR 9000 Series, particularly the A9K24X10GETR and A9KMOD80TR, combines high-density connections, extensive service support, and advanced security and telemetry capabilities. These routers are perfect for demanding environments where reliable performance and adaptability are crucial. With their focus on innovation and performance, Cisco continues to shape the future of networking technology.
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