Chapter 4 Configuring Additional Router Features

Managing Configuration History and Rollback

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

Previewing Rollback Configuration Changes

The show configuration rollback changes command allows you to preview the configuration changes that take place if you roll back the configuration to a specific commitID. For example, if you want to roll back the configuration to a specific point, all configuration changes made after that point must be undone. This rollback process is often accomplished by executing the no version of commands that must be undone.

To display the prospective rollback configuration changes from the current configuration to a specific commitID, go to EXEC or administration EXEC mode and type the show configuration rollback changes to commitId command. In the following example, the command help displays the available commitIDs, and then the rollback changes are displayed.

RP/0/RSP1/CPU0:router# show configuration rollback changes to ?

1000000217 Commit ID

1000000218 Commit ID

1000000219 Commit ID

RP/0/RSP1/CPU0:router# show configuration rollback changes to 1000000218

Building configuration...

no interface Loopback100 interface Gi0/1/0/0

no ipv4 nd dad attempts

!

!

no route-policy xx end

To display the prospective rollback configuration changes from the current configuration to a specified number of previous sessions, go to EXEC or administration EXEC mode and type the show configuration rollback changes last commit-rangecommand:

RP/0/RSP0/CPU0:router# show configuration rollback changes last 2

Building configuration...

interface Loopback3 no description

no ipv4 address 10.0.1.1 255.0.0.0 exit

interface Loopback4 no description

no ipv4 address 10.0.0.1 255.0.0.0 end

In the preceding example, the command display shows the proposed rollback configuration changes for the last two commit IDs.

Rolling Back the Configuration to a Specific Rollback Point

When you roll back the configuration to a specific rollback point, you undo all configuration changes made during the session identified by the commit ID for that rollback point, and you undo all configuration changes made after that point. The rollback process rolls back the configuration and commits the rolled-back configuration. The rollback process also creates a new rollback point so that you can roll back the configuration to the previous configuration.

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

4-8

OL-17502-01

 

 

Page 83 Page 85
Page 84
Image 84
Cisco Systems ASR 9000, A9K24X10GETR, A9KMOD80TR manual Previewing Rollback Configuration Changes
Page 83 Page 85

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