Implementing BGP on Cisco IOS XR Software

How to Implement BGP on Cisco IOS XR Software

 

Command or Action

Purpose

Step 12

 

 

clear bgp {ipv4 {unicast multicast all}

Clears BGP flap statistics for all paths that match the

 

ipv6 {unicast all} all {unicast multicast

regular expression _1$.

 

all}} flap-statistics regexp

 

 

regular-expression

 

 

Example:

 

 

RP/0/RP0/CPU0:router# clear bgp ipv4 unicast

 

 

flap-statistics _1$

 

Step 13

 

 

clear bgp {ipv4 {unicast multicast all}

Clears BGP flap statistics for route policy policy_A.

 

ipv6 {unicast all} all {unicast multicast

 

 

all}} flap-statistics route-policy

 

 

route-policy-nane

 

 

Example:

 

 

RP/0/RP0/CPU0:router# clear bgp ipv4 unicast

 

 

flap-statistics route-policy policy_A

 

Step 14

 

 

clear bgp {ipv4 {unicast multicast all}

Clears BGP flap statistics for network 192.168.40.0/24.

 

ipv6 {unicast all} all {unicast multicast

 

 

all}} flap-statistics network/mask-length

 

 

Example:

 

 

RP/0/RP0/CPU0:router# clear bgp ipv4 unicast

 

 

flap-statistics 192.168.40.0/24

 

Step 15

 

 

clear bgp {ipv4 {unicast multicast all}

Clears BGP flap statistics for routes received from this

 

ipv6 {unicast all} all {unicast multicast

neighbor 172.20.1.1.

 

all}} flap-statistics ip-address

 

 

Example:

 

 

RP/0/RP0/CPU0:router# clear bgp ipv4 unicast

 

 

flap-statistics 172.20.1.1

 

Step 16

 

 

show bgp [ipv4 {unicast multicast all}

Displays the dampened routes, including the time

 

ipv6 {unicast all} all {unicast multicast

remaining before they are unsuppressed.

 

all}] dampened-paths

 

 

Example:

 

 

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

 

Step 17

 

 

clear bgp {ipv4 {unicast multicast all}

Clears route dampening information and unsuppresses the

 

ipv6 {unicast all} all {unicast multicast

suppressed routes.

 

all}} dampening [ip-address/mask-length]

 

 

Example:

 

 

RP/0/RP0/CPU0:router# clear bgp dampening

 

 

 

 

Cisco IOS XR Routing Configuration Guide

RC-51

Page 67
Image 67
Cisco Systems IOS XR manual RC-51

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.