Implementing OSPF on Cisco IOS XR Software

How to Implement OSPF on Cisco IOS XR Software

Sample Output for the show ospf mpls traffic-eng Command

In the following example, the show ospf mpls traffic-engEXEC command verifies that the MPLS TE fragments are configured correctly:

RP/0/RP0/CPU0:router# show ospf 1 mpls traffic-eng fragment

OSPF Router with ID (192.168.4.3) (Process ID 1)

Area 0 has 1 MPLS TE fragment. Area instance is 3.

MPLS router address is 192.168.4.2

Next fragment ID is 1

Fragment 0 has 1 link. Fragment instance is 3.

Fragment has 0 link the same as last update.

Fragment advertise MPLS router address

Link is associated with fragment 0. Link instance is 3

Link connected to Point-to-Point network

Link ID :55.55.55.55

Interface Address :192.168.50.21

Neighbor Address :192.168.4.1

Admin Metric :0

Maximum bandwidth :19440000

Maximum global pool reservable bandwidth :25000000

Maximum sub pool reservable bandwidth

:3125000

Number of Priority :8

 

 

 

Global pool unreserved BW

 

 

Priority

0

:

25000000

Priority 1 :

25000000

Priority

2

:

25000000

Priority 3 :

25000000

Priority

4

:

25000000

Priority 5 :

25000000

Priority

6

:

25000000

Priority 7 :

25000000

Sub pool

unreserved BW

 

 

 

Priority

0

:

3125000

Priority 1 :

3125000

Priority

2

:

3125000

Priority 3

:

3125000

Priority

4

:

3125000

Priority 5

:

3125000

Priority

6

:

3125000

Priority 7

:

3125000

Affinity

Bit :0

 

 

 

In the following example, the show ospf mpls traffic-engEXEC command verifies that the MPLS TE links on area instance 3 are configured correctly:

RP/0/RP0/CPU0:router# show ospf mpls traffic-eng link

OSPF Router with ID (192.168.4.1) (Process ID 1)

Area 0 has 1 MPLS TE links. Area instance is 3.

Links in hash bucket 53.

Link is associated with fragment 0. Link instance is 3

Link connected to Point-to-Point network

Link ID :192.168.50.20

Interface Address :192.168.20.50

Neighbor Address :192.168.4.1

Admin Metric :0

Maximum bandwidth :19440000

Maximum global pool reservable bandwidth :25000000

Maximum sub pool reservable bandwidth

:3125000

Number of Priority :8

 

 

 

Global pool unreserved BW

 

 

Priority

0

:

25000000

Priority 1 :

25000000

Priority

2

:

25000000

Priority 3

:

25000000

Priority

4

:

25000000

Priority 5

:

25000000

Priority

6

:

25000000

Priority 7

:

25000000

Sub pool

unreserved BW

 

 

 

Cisco IOS XR Routing Configuration Guide

RC-179

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Image 195
Cisco Systems IOS XR manual Sample Output for the show ospf mpls traffic-eng Command, RC-179

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.