Allied Telesis AT-S97 - Manual (Page 122)

Chapter 8: Event Log and Syslog Client Commands
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Overview
The management, media converter, power supply, and fan modules
generate event messages with vital information about system activity. If a
network problem occurs, the messages can help you determine the
sequence of events that led to the problem as well as identify and resolve
it. An event message contains the following information:
ˆ The time and date of the event
ˆ The severity level of the event
ˆ A description of the event
The events are stored in the event log, an area of non-volatile memory
separate from the file system where the messages are retained even
when the chassis is powered off. The log’s maximum capacity is 1,024
events. When the log reaches maximum capacity, the module deletes the
oldest events as it adds new events.
The event log is controlled and viewed with the LOGGING commands.
The LOGGING ENABLE command activates the log, the default setting,
and the LOGGING DISABLE command deactivates the log, stopping the
log from storing any further event messages. The LOGGING SHOW
command displays the status of the log and the events messages, and the
LOGGING CLEAR command deletes all the events messages from the
log.
The management module also has a syslog client for sending the event
messages to a syslog server on your network. A server can act as the
central storage device for the event messages from many different
devices on your network. To use the syslog client, you must specify the IP
address of the syslog server on the network with the LOGGING SET
command and enable the client with the LOGGING ENABLE SYSLOG
command. You can specify only one syslog server. Before using the
syslog client, you should review the guidelines in the next section.
Syslog Client
Guidelines
The guidelines to using the syslog client are:
ˆ The AT-MCF2000M Management Module must have an IP
configuration. For instructions, refer to Chapter 4, “IP Configuration
Commands” on page 47.
ˆ The 10/100/1000Base-T Management port on the management
module must be connected to a network device on your network, such
as a Fast Ethernet or Gigabit Ethernet switch. The management
module communicates with the syslog server through this port.
ˆ The syslog server must be a member of the same network as the
management module or have access to it through Layer 3 routing
devices.