Cisco Systems IOS XR manual Enabling BGP Routing, RC-iv

Models: IOS XR

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Contents

How to Implement BGP on Cisco IOS XR Software

RC-27

 

 

Enabling BGP Routing

RC-28

 

 

 

 

 

 

 

Configuring a Routing Domain Confederation for BGP

RC-31

 

Resetting eBGP Session Immediately Upon Link Failure

RC-33

 

Logging Neighbor Changes

RC-34

 

 

 

 

 

 

Adjusting BGP Timers

RC-34

 

 

 

 

 

 

 

Changing the BGP Default Local Preference Value

RC-35

 

Configuring the MED Metric for BGP

RC-36

 

 

 

 

Configuring BGP Weights

RC-38

 

 

 

 

 

 

 

Tuning the BGP Best Path Calculation

RC-39

 

 

 

 

Indicating BGP Backdoor Routes

RC-41

 

 

 

 

 

Configuring Aggregate Addresses

RC-43

 

 

 

 

 

Redistributing iBGP Routes into IGP

RC-44

 

 

 

 

Redistributing Prefixes into Multiprotocol BGP

RC-46

 

 

Configuring BGP Route Dampening

RC-48

 

 

 

 

Applying Policy When Updating the Routing Table

RC-52

 

Setting BGP Administrative Distance

RC-53

 

 

 

 

Configuring a BGP Neighbor Group

RC-55

 

 

 

 

Configuring a BGP Neighbor

RC-58

 

 

 

 

 

 

Configuring a Route Reflector for BGP

RC-60

 

 

 

 

Configuring BGP Route Filtering by Route Policy

RC-62

 

 

Disabling Next Hop Processing on BGP Updates

RC-64

 

 

Configuring BGP Community and Extended-Community Filtering

RC-65

Configuring Software to Store Updates from a Neighbor

RC-67

Disabling a BGP Neighbor

RC-69

 

 

 

 

 

 

 

Resetting Neighbors Using BGP Dynamic Inbound Soft Reset

RC-71

Resetting Neighbors Using BGP Outbound Soft Reset

RC-71

 

Resetting Neighbors Using BGP Hard Reset

RC-72

 

 

Clearing Caches, Tables and Databases

RC-73

 

 

 

Displaying System and Network Statistics

RC-73

 

 

 

Monitoring BGP Update Groups

RC-75

 

 

 

 

 

Configuration Examples for Implementing BGP on Cisco IOS XR Software RC-76

Enabling BGP: Example RC-76

Displaying BGP Update Groups: Example

BGP Neighbor Configuration: Example

BGP Confederation: Example

BGP Route Reflector: Example

Where to Go Next RC-79

Additional References

Cisco IOS XR Routing Configuration Guide

RC-iv

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Cisco Systems IOS XR manual Enabling BGP Routing, RC-iv

IOS XR specifications

Cisco Systems IOS XR is an advanced operating system designed specifically for high-performance routers and service provider networks. It serves as the backbone for many of Cisco's high-end routing platforms, enabling service providers to manage their networks with increased efficiency, flexibility, and scalability.

One of the main features of IOS XR is its modular architecture. This allows for the independent operation of various components within the OS, facilitating the deployment of new features and updates without affecting the overall stability of the system. This modularity ensures that service providers can implement rapid changes and enhancements while maintaining service continuity.

Another characteristic of IOS XR is its support for 64-bit architecture, which provides enhanced performance and the ability to manage larger amounts of data. This is particularly beneficial for service providers that deal with high traffic volumes and require robust data processing capabilities. The utilization of 64-bit technology also enables the operating system to utilize memory more efficiently, allowing for greater scalability.

IOS XR incorporates advanced technologies such as Distributed System Architecture (DSA) and Multiple Routing Instances (Merging Routes). DSA allows for the distribution of routing processes across multiple hardware resources, maximizing performance and redundancy. Multiple Routing Instances enable operators to create separate logical routing tables for different services, improving isolation and efficiency in managing network traffic.

The operating system also focuses heavily on security, featuring extensive encryption methods and access controls to safeguard network resources. IOS XR supports various authentication protocols, ensuring secure access to routers and switches. In addition, the OS includes comprehensive logging and monitoring capabilities, allowing network administrators to track activities and respond quickly to potential threats.

Another critical aspect of IOS XR is its adherence to the principles of service-oriented architecture (SOA). This approach permits the development of applications and services that can operate independently, fostering innovation and enabling service providers to tailor their offerings based on customer demands.

Ultimately, Cisco IOS XR is a powerful, reliable operating system that meets the complex needs of modern telecommunications networks. With its focus on modularity, performance, security, and scalability, it enables service providers to deliver high-quality, resilient services to their customers while efficiently managing network resources. As the industry continues to evolve, IOS XR remains a vital tool for those aiming to stay competitive in the ever-changing landscape of networking.