Static and dynamic buffers – Brocade FastIron SX Series Chassis Hardware Installation Guide User Manual

Page 106

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Syntax: show logging

The Syslog display shows the following configuration information, in the rows above the log entries
themselves.

Syslog buffer configuration

TABLE 24

This Field...

Displays...

Syslog logging

The state (enabled or disabled) of the Syslog buffer.

messages dropped The number of Syslog messages dropped due to user-configured filters. By default, the

software logs messages for all Syslog levels. You can disable individual Syslog levels, in
which case the software filters out messages at those levels. Each time the software filters
out a Syslog message, this counter is incremented.

flushes

The number of times the Syslog buffer has been cleared by the clear logging command.

overruns

The number of times the dynamic log buffer has filled up and been cleared to hold new
entries. For example, if the buffer is set for 100 entries, the 101st entry causes an overrun.
After that, the 201st entry causes a second overrun.

level

The message levels that are enabled. Each letter represents a message type and is
identified by the key (level code) below the value. If you disable logging of a message level,
the code for that level is not listed.

messages logged

The total number of messages that have been logged since the software was loaded.

level code

The message levels represented by the one-letter codes.

Static and dynamic buffers

The software provides two separate buffers:

Static - logs power supply failures, fan failures, and temperature warning or shutdown messages

Dynamic - logs all other message types

In the static log, new messages replace older ones, so only the most recent message is displayed. For
example, only the most recent temperature warning message will be present in the log. If multiple
temperature warning messages were sent to the log, the latest one will replace the previous one. The
static buffer is not configurable.

The message types that appear in the static buffer do not appear in the dynamic buffer. The dynamic
buffer contains up to the maximum number of messages configured for the buffer (50 by default), then
begins removing the oldest messages (at the bottom of the log) to make room for new ones.

The static and dynamic buffers are both displayed when you display the log.

device(config)# show logging

...

Static Log Buffer:

Aug 27 12:42:42:A:Power Supply 6, 1st right, failed

Dynamic Log Buffer (50 lines):

Aug 27 12:19:04:I:Interface ethernet3/4, state up

Aug 27 12:19:04:I:Interface ethernet6/3, state up

Aug 27 12:19:04:I:Interface ethernet3/2, state up

Aug 27 12:19:04:I:Interface ethernet6/1, state up

Aug 27 12:19:00:N:Module up in slot 6

Static and dynamic buffers

104

Brocade FastIron SX Series Chassis Hardware Installation Guide

53-1003092-01

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