Implementing BGP on Cisco IOS XR Software

How to Implement BGP on Cisco IOS XR Software

8.show bgp neighbor-group group-nameconfiguration

9.show bgp summary

DETAILED STEPS

 

Command or Action

Purpose

Step 1

 

 

show bgp cidr-only

Displays routes with nonnatural network masks (classless

 

 

interdomain routing [CIDR]) routes.

 

Example:

 

 

RP/0/RP0/CPU0:router# show bgp cidr-only

 

Step 2

 

 

show bgp count-only

Displays the number of paths.

 

Example:

 

 

RP/0/RP0/CPU0:router# show bgp count-only

 

Step 3

 

 

show bgp community community-list[exact-match]

Displays routes that match the BGP community 1081:5.

 

Example:

 

 

RP/0/RP0/CPU0:router# show bgp community 1081:5

 

 

exact-match

 

Step 4

 

 

show bgp regexp regular-expression

Displays routes that match the autonomous system path

 

 

regular expression "^3 ".

 

Example:

 

 

RP/0/RP0/CPU0:router# show bgp regexp "^3 "

 

Step 5

 

 

show bgp

Displays entries in the BGP routing table.

 

Example:

 

 

RP/0/RP0/CPU0:router# show bgp

 

Step 6

 

 

show bgp neighbors ip-address

Displays information about the BGP connection to neighbor

 

[advertised-routes dampened-routes

10.0.101.1.

 

flap-statistics performance-statistics

The advertised-routeskeyword displays all routes the

 

received prefix-filterroutes]

 

 

router advertised to the neighbor.

 

Example:

The dampened-routeskeyword displays the dampened

 

RP/0/RP0/CPU0:router# show bgp neighbors

routes that are learned from the neighbor.

 

10.0.101.1

The flap-statisticskeyword displays flap statistics of

 

 

 

 

the routes learned from the neighbor.

 

 

The performance-statistics keyword displays

 

 

performance statistics relating to work done by the

 

 

BGP process for this neighbor.

 

 

The received prefix-filterkeyword and argument

 

 

display the received prefix list filter.

 

 

The routes keyword displays routes learned from the

 

 

neighbor.

 

 

 

Cisco IOS XR Routing Configuration Guide

RC-74

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Cisco Systems IOS XR manual Performance-statistics keyword displays, RC-74

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.