Chapter 6 Troubleshooting the Cisco IOS XR Software

Memory Warnings in Configuration Sessions

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

Clearing a Target Configuration

A low-memory warning can occur when a large configuration file is loaded into a target configuration session. To remove the target configuration, type the clear command to discard the changes. For example:

RP/0/RSP0/CPU0:router(config)# clear

Caution Committing a target configuration that has caused a low-memory warning can make the system unstable. Clearing a target configuration is a preventive measure to not let the system go into a worse memory state due to additional configuration. In addition, all other active configuration sessions can be closed to minimize the churn.

Removing Committed Configurations to Free System Memory

You can reduce memory usage by removing configurations from the router, as shown in the following procedure:

Step 1 Type the show memory summary command in EXEC mode to display the overall system memory: RP/0/RSP0/CPU0:router# show memory summary

Physical Memory: 2048M total

Application Memory : 1787M (1511M available)

Image: 132M (bootram: 132M)

Reserved: 128M, IOMem: 0, flashfsys: 0

Total shared window: 0

Step 2 Type the show configuration commit list command in EXEC or administration EXEC mode to list the configurations you can remove.

Note To display the details of a configuration, type the show configuration commit changes command followed by a commitID number. To display additional configuration history information, type the show configuration history ? command, and use the command options to display additional information.

Step 3 Type the show running-configcommand to display the current configuration.

Step 4 Remove configurations as needed to free memory.

For more information, see the Managing Configuration History and Rollback, page 4-6.

Rolling Back to a Previously Committed Configuration

You can roll back the system to a previous committed configuration, as described in Managing Configuration History and Rollback, page 4-6.

 

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

6-10

OL-17502-01

Page 131 Page 133
Page 132
Image 132
Cisco Systems ASR 9000 manual Clearing a Target Configuration, Removing Committed Configurations to Free System Memory
Page 131 Page 133

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.
Top Page Image Contents