Cisco CRS-1 - Carrier Routing System Router Getting Started Guide

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Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 5 Initial Configuration of the Cisco IOS XR Software
Configuring Logging and Logging Correlation
You can log messages based on the severity level of the messages, as shown in Table 5-4.
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 a card 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 pull up all
correlated messages for display later, should the need arise. Refer to “Implementing and Monitoring Alarms
and Alarm Log Correlation on Cisco IOS XR Software” in the Cisco IOS XR 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.
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
Table 5-4 Logging Severity Levels for System Error Messages
Level Description
Level 0—Emergencies System has become unusable.
Level 1—Alerts Immediate action needed to restore system stability.
Level 2—Critical Critical conditions that may require attention.
Level 3—Errors Error conditions that may help track problems.
Level 4—Warnings Warning conditions that are not severe.
Level 5—Notifications Normal but significant conditions that bear notification.
Level 6—Informational Informational messages that do not require action.
Level 7—Debugging Debugging messages for system troubleshooting only.

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English