Chapter 3 Configuring General Router Features

Managing 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

RP/0/RSP0/CPU0:router# show configuration

sessions

 

 

Current Configuration Session

Line

User

Date

Lock

00000041-006d60d3-00000000

vty0

mehrenre

Wed Dec

3 00:33:32 2008

If an asterisk (*) appears in the Lock column, the user is using an exclusive configuration session and you cannot start a configuration session until the session closes. For more information, see the “Starting an Exclusive Configuration Session” section on page 3-21.

Note Configuration sessions for administration configuration and each RSP are managed independently. For example, if a user locks the administration configuration, you can still configure an RSP if other users have not locked a configuration session for that RSP.

Starting a Configuration Session

When you place the router in global configuration or administration configuration mode using the configure command, a new target configuration session is created. The target configuration allows you to enter, review, and verify configuration changes without impacting the running configuration.

Note The target configuration is not a copy of the running configuration. It has only the configuration commands entered during the target configuration session.

While in configuration mode, you can enter all Cisco IOS XR Software commands supported in that configuration mode. Each command is added to the target configuration. You can view the target configuration by entering the show configuration command in configuration mode. The target configuration is not applied until you type the commit command, as described in the “Committing Changes to the Running Configuration” section on page 3-28.

You can save target configurations to disk as nonactive configuration files. These saved files can be loaded, further modified, and committed at a later time. For more information, see the “Saving the Target Configuration to a File” section on page 3-26.

Examples

The following examples show how to manage configuration sessions:

•Simple RSP Configuration: Example, page 3-20

•Simple Administration Configuration Session: Example, page 3-21

Simple RSP Configuration: Example

This example shows a simple owner RSP configuration session in which the target configuration is created and previewed in global configuration mode:

RP/0/RSP0/CPU0:router # configure

RP/0/RSP0/CPU0:router(config)# interface tunnel-te 2

RP/0/RSP0/CPU0:router(config-if)# show configuration

Building configuration...

interface tunnel-te2

description faq

!

 

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

3-20

OL-17502-01

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Cisco Systems A9KMOD80TR, ASR 9000 manual Starting a Configuration Session, Simple RSP Configuration Example, Sessions
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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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