Extreme Networks ExtremeWare Command Reference Manual page 714

Commands for Status Monitoring and Statistics
• Severity Level—indicates the urgency of a condition reported in the log. Table 15 describes the
severity levels assigned to events.
• Component, Subcomponent, and Condition Name—describes the subsystem in the software that
generates the event. This provides a good indication of where a fault might lie.
• Message—a description of the event occurrence. If the event was caused by a user, the user name is
also provided.
This command displays the messages stored in either the internal memory buffer or in NVRAM. The
messages shown can be limited by specifying a severity level, a time range, or a match expression.
Messages stored in the target have already been filtered as events occurred, and specifying a severity or
match expression on the
If the keyword is not present, the messages stored in the memory-buffer target are displayed.
messages
Otherwise, the messages stored in the specified target are displayed.
If the keyword is present following the severity value, then only the events at that exact severity
only
are included. Without the
example, severity
warning
only warning.
Messages whose timestamps are equal or later than the starting time and are equal or earlier than the
specified ending time will be shown if they also pass the severity requirements and match expression, if
specified.
If the format phrase is specified, this format overrides the format already configured for the specified
log. See the command
configure log target format
a format.
If a phrase is specified, the formatted message must match the simple regular expression
match
specified by
match-expression
A simple regular expression is a string of single characters including the dot character (.), which are
optionally combined with quantifiers and constraints. A dot matches any single character while other
characters match only themselves (case is significant). Quantifiers include the star character (*) that
matches zero or more occurrences of the immediately preceding character or dot. Constraints include
the caret character (^) that matches at the beginning of a message, and the currency character ($) that
matches at the end of a message. Bracket expressions are not supported. There are a number of sources
available on the Internet and in various language references describing the operation of regular
expressions.
If the keyword is specified, messages are shown from oldest to newest; otherwise,
chronological
messages are displayed newest to oldest.
Severity Level. The severity levels are
severity levels for extended debugging,
messages, the severity levels are shown by four letter abbreviations. The abbreviated forms are:
• Critical—Crit
• Error—Erro
• Warning—Warn
• Notice—Noti
• Info—Info
• Debug-Summary—Summ
• Debug-Verbose—Verb
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command can only further limit the messages shown.
show log
keyword, events at that severity or more urgent are displayed. For
only
implies critical, error, or warning, whereas severity
for it to be shown.
critical
debug-summary
on page 633 for more information on specifying
, , ,
error warning notice
, , and
debug-verbose
implies
warning only
, and , plus three
info
. In log
debug-data
ExtremeWare Software 7.3.0 Command Reference Guide