Implementing IS-IS on Cisco IOS XR Software

How to Implement IS-IS on Cisco IOS XR Software

 

Command or Action

Purpose

Step 3

 

 

lsp-password {hmac-md5 text} {clear

Configures the LSP authentication password.

 

encrypted} password [level {1 2}] [send-only]

The hmac-md5keyword specifies that the password is

 

[snp send-only]

 

 

used in HMAC-MD5 authentication.

 

Example:

The text keyword specifies that the password uses

 

cleartext password authentication.

 

RP/0/RP0/CPU0:router(config-isis)# lsp-password

 

hmac-md5 encrypted password1 level 1

The clear keyword specifies that the password is

 

 

 

 

unencrypted when entered.

 

 

The encrypted keyword specifies that the password is

 

 

encrypted using a two-way algorithm when entered.

 

 

The level 1 keyword sets a password for authentication

 

 

in the area (in Level 1 LSPs and Level SNPs).

 

 

The level 2 keywords set a password for authentication

 

 

in the backbone (the Level 2 area).

 

 

The send-onlykeyword adds authentication to LSP and

 

 

sequence number protocol data units (SNPs) when they

 

 

are sent. It does not authenticate received LSPs or

 

 

SNPs.

 

 

The snp send-onlykeyword adds authentication to

 

 

SNPs when they are sent. It does not authenticate

 

 

received SNPs.

 

 

Note To disable SNP password checking, the snp

 

 

send-onlykeywords must be specified in the

 

 

lsp-password command.

Step 4

 

 

interface type instance

Enters interface configuration mode.

 

Example:

 

 

RP/0/RP0/CPU0:router(config-isis)# interface

 

 

POS 0/1/0/3

 

 

 

 

Cisco IOS XR Routing Configuration Guide

RC-109

Page 125
Image 125
Cisco Systems IOS XR manual RC-109

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.