CLI display of Syslog buffer configuration
TABLE 39
Field
Definition
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. Refer to
Disabling logging of a
message level
on page 291. 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 or
equivalent Web Management Interface option. Refer to
Clearing the Syslog messages from
the local buffer
on page 294.
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 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 are sent to the log, the latest one replaces 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#show logging
Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)
Buffer logging: level ACDMEINW, 3 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warning
Static Log Buffer:
Dec 15 19:04:14:A:Fan 1, fan on right connector, failed
Dec 15 19:00:14:A:Fan 2, fan on left connector, failed
Dynamic Log Buffer (50 entries):
Dec 15 18:46:17:I:Interface ethernet 4, state up
Dec 15 18:45:21:I:Bridge topology change, vlan 4095, interface 4, changed
state to forwarding
Dec 15 18:45:15:I:Warm start
Static and dynamic buffers
288
FastIron Ethernet Switch Administration Guide
53-1003625-01