Cisco Systems IOS XR Manual De Usuario
3-11
Cisco IOS XR Getting Started Guide
Chapter 3 Configuring Additional Router Features
Configuring Logging and Logging Correlation
Configuring Logging and Logging Correlation
System messages generated by the Cisco IOS XR software can be logged to a variety of locations based
on the severity level of the messages. For example, you could direct information messages to the system
console and also log debugging messages to a network server.
on the severity level of the messages. For example, you could direct information messages to the system
console and also log debugging messages to a network server.
In addition, you can define correlation rules that group and summarize related events, generate complex
queries for the list of logged events, and retrieve logging events through an XML interface.
queries for the list of logged events, and retrieve logging events through an XML interface.
The following sections describe logging and the basic commands used to log messages in
Cisco IOS XR software:
Cisco IOS XR software:
•
•
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Logging Locations and Severity Levels
Error messages can be logged to a variety of locations, as shown in
You can log messages based on the severity level of the messages, as shown in
.
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.
logs and isolate the root causes of the messages.
Table 3-1
Logging Locations for System Error Messages
Logging Destination
Command (Global Configuration Mode)
console
logging console
vty terminal
logging monitor
external syslog server
logging trap
internal buffer
logging buffered
Table 3-2
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 are for system troubleshooting only.