User Guide

3-12
Cisco IOS XR Getting Started Guide
Chapter 3 Configuring Additional Router Features
Configuring Logging and Logging Correlation
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 extract all
correlated messages for display later, should the need arise. See 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.
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
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
logging {ip-address | hostname}
Example:
RP/0/RP0/CPU0:router(config)# logging 10.1.1.1
Specifies a syslog server host to use for system
logging.
Step 3
logging trap severity
Example:
RP/0/RP0/CPU0:router(config)# logging trap debugging
Limits the logging of messages sent to syslog
servers to only those messages at the specified
level.
• See Table 3-2 for a summary of the logging
severity levels.