Chapter 4 Configuring Additional Router Features

Configuring Logging and Logging Correlation

F I N A L D R A F T — C i s c o C o n f i d e n t i a l

Alarm Logging Correlation

Alarm logging correlation is used to group and filter similar messages to reduce the amount of redundant logs and isolate the root causes of the messages.

For example, the original message describing the online insertion and removal (OIR) and system state being up or down can be reported, and all subsequent messages reiterating the same event can be correlated. When you create correlation rules, a common root event that is generating larger volumes of follow-on error messages can be isolated and sent to the correlation buffer. An operator can extract all correlated messages for display later, should the need arise. See Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide for more information.

Configuring Basic Message Logging

Numerous options for logging system messages in Cisco IOS XR software are available. This section provides a basic example.

To configure basic message logging, complete the following steps:

SUMMARY STEPS

1.configure

2.logging {ip-address hostname}

3.logging trap severity

4.logging console [severity]

5.logging buffered [severity buffer-size]

6.commit

7.end

8.show logging

DETAILED STEPS

 

 

Command or Action

Purpose

 

Step 1

 

 

 

configure

Enters global configuration mode.

 

 

Example:

 

 

 

 

 

 

RP/0/RSP0/CPU0:router# configure

 

 

 

 

 

Step 2

 

 

 

logging {ip-address hostname}

Specifies a syslog server host to use for system logging.

 

 

Example:

 

 

 

 

 

 

RP/0/RSP0/CPU0:router(config)# logging 10.1.1.1

 

 

 

 

 

Step 3

 

 

 

logging trap severity

Limits the logging of messages sent to syslog servers to

 

 

 

only those messages at the specified level.

 

 

Example:

• See Table 4-2for a summary of the logging severity

 

 

RP/0/RSP0/CPU0:router(config)# logging trap

levels.

 

 

debugging

 

 

 

 

 

 

 

 

 

 

 

 

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

 

 

 

 

 

 

 

 

 

 

 

 

OL-17502-01

 

 

4-13

 

 

 

 

 

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Cisco Systems A9KMOD80TR, ASR 9000 Alarm Logging Correlation, Configuring Basic Message Logging, Commit End Show logging
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A9KMOD80TR, A9K24X10GETR, ASR 9000 specifications

Cisco Systems has long been a leader in networking technology, providing cutting-edge solutions for service providers and enterprise organizations alike. Among their standout products is the Cisco ASR 9000 Series Aggregation Services Routers, notably the A9K24X10GETR and the A9KMOD80TR models. These routers are engineered to deliver unmatched performance, scalability, and versatility for networks that require high bandwidth and low latency.

The Cisco ASR 9000 Series is built for the needs of today's complex service provider and enterprise networks. A significant feature of the A9K24X10GETR is its 24-port 10-Gigabit Ethernet module. This functionality allows for high-density connectivity, making it ideal for aggregating numerous connections to different parts of a network while maintaining optimal performance. Whether used for Internet service providers delivering high-speed connectivity or for enterprises looking to connect multiple branches, the A9K24X10GETR provides robust and reliable data transmission.

Further enhancing the capabilities of the ASR 9000 is the A9KMOD80TR module, which supports an extensive range of services. This module is designed to run a variety of technologies, including Layer 2 and Layer 3 services, MPLS (Multiprotocol Label Switching), and IPv6. Its ability to integrate seamlessly into existing infrastructures while providing the advanced features customers demand makes it an invaluable asset for network engineering teams.

Another cutting-edge technology present in the ASR 9000 Series is its support for eBGP (External Border Gateway Protocol), which plays a critical role in managing traffic across multiple networks. The routers are equipped with advanced telemetry features, empowering operators with real-time insights into network performance and health. Additionally, they come with integrated security features that protect against DDoS threats and other vulnerabilities.

In summary, Cisco's ASR 9000 Series, particularly the A9K24X10GETR and A9KMOD80TR, combines high-density connections, extensive service support, and advanced security and telemetry capabilities. These routers are perfect for demanding environments where reliable performance and adaptability are crucial. With their focus on innovation and performance, Cisco continues to shape the future of networking technology.
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