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

To load rollback configuration changes from the current configuration to a specific session, go to global configuration or administration configuration mode and type the load rollback changes to commitId command:

RP/0/RSP0/CPU0:router(config)# load rollback changes to 1000000068

Building configuration...

Loading.

233 bytes parsed in 1 sec (231)bytes/sec

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

RP/0/RSP0/CPU0:router(config)# load rollback changes last 6

Building configuration...

Loading.

221 bytes parsed in 1 sec (220)bytes/sec

In the preceding example, the command loads the rollback configuration changes for the last six commitIDs.

To load the rollback configuration for a specific commitID, go to global configuration or administration configuration mode and type the load rollback changes commitId command:

RP/0/RSP0/CPU0:router(config)# load rollback changes 1000000060

Building configuration...

Loading.

199 bytes parsed in 1 sec (198)bytes/sec

Deleting CommitIDs

You can delete the oldest configuration commitIDs by entering the clear configuration commit command in EXEC or administration EXEC mode. The clear configuration commit command must be followed by either the amount of disk space you want to reclaim or number of commitIDs you want to delete. To reclaim disk space from the oldest commitIDs, type the clear configuration commit command followed by the keyword diskspace and number of kilobytes to reclaim:

RP/0/RSP0/CPU0:router# clear configuration commit diskspace 50

Deleting 4 rollback points '1000000001' to '1000000004'

64 KB of disk space will be freed. Continue with deletion?[confirm]

To delete a specific number of the oldest commitIDs, type the clear configuration commit command followed by the keyword oldest and number of commitIDs to delete:

RP/0/RSP0/CPU0:router# clear configuration commit oldest 5

Deleting 5 rollback points '1000000005' to '1000000009'

80 KB of disk space will be freed. Continue with deletion?[confirm]

 

 

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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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