Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

Log severities

Log messages generated by the vRouter are associated with one of the following levels of severity.

Table 1. Syslog message severities
Severity Meaning

emerg

Emergency. A general system failure or other serious failure has occurred, such that the system is unusable.

alert

Alert. Immediate action is required to prevent the system from becoming unusable; for example, because a network link has failed or the database has become compromised.

crit

Critical. A critical condition exists, such as resource exhaustion—for example, the system is out of memory, CPU processing thresholds are being exceeded, or a hardware failure has occurred.

err

Error. An error condition has occurred, such as a failed system call. However, the system is still functioning.

warning

Warning. An event has occurred that has the potential to cause an error, such as invalid parameters being passed to a function. This situation should be monitored.

notice

Notice. A normal but significant event has occurred, such as an unexpected event. It is not an error, but could potentially require attention.

info

Informational. Normal events of interest are being reported as they occur.

debug

Debugging level. Trace-level information is being provided.

CAUTION: Risk of service degradation. Debugging severity is resource intensive. Setting logging levels to Debug can affect performance.