Cisco Sg2008 Manual

							Administration
System Logs
Cisco Small Business SG200 Series 8-port Smart Switch51
3
 
STEP  4In the SNTP Authentication Table, click Add to add a key to the list.
STEP  5Enter the parameters:
•Authentication Key ID—The key number. When you define an SNTP server 
on the system, you specify which key it uses for authentication.
•Authentication Key—The value of the key. The value is the cryptographic 
key that is used to encrypt and decrypt SNTP messages to and from the 
server.
•Trusted Key—Indicates whether this key is a trusted key. Only trusted keys 
are available for use. At least one trusted key must be configured to enable 
the SNTP authentication service.
Keys are used with unicast SNTP servers only. A key is used to authenticate 
an SNTP server only when the key is enabled as trusted. A keys that is 
configured on the switch but specified as untrusted will not be used. An 
administrator can add an untrusted key to have it available for use at another 
time.
STEP  6Click Apply and then click Close. Your changes are saved to the Running 
Configuration.
System Logs
The switch generates messages in response to events, faults, errors, changes in 
the configuration, and other occurrences. These messages are stored locally in 
the system memory and are forwarded to one or more centralized points of 
collection for monitoring or long-term archiving.
Se e the following topic s for more information on the configuration pages available 
in the Administration > System Log menu:
•Configuring Log Settings
•Configuring Remote Log Servers 
						

							Administration
System Logs
Cisco Small Business SG200 Series 8-port Smart Switch52
3
 
Configuring Log Settings
Use the Log Settings page to enable logs globally, and to define which event 
types are logged into temporar y memor y (R AM) and persistent memor y (flash).
Log messages in flash memory are retained across a reboot. When the log is full, 
the oldest events are automatically deleted and replaced with the new entries.
To configure log settings:
STEP 1Click Administration > System Log > Log Settings in the navigation window.
STEP  2Enable the types of logging to be performed on the system:
•Log Aggregation—When enabled, this feature combines multiple logs of the 
same type into a single log message. If two or more identical log messages 
are received consecutively within a configured time interval, then these 
messages are aggregated into a single log message. 
•Log Aggregation Interval—If Log Aggregation is enabled, specify the 
interval in seconds. Consecutive messages that are received within this 
interval will be aggregated into a single log message. The range is 15 
seconds to 120 seconds.
•RAM Memory Logging—Select to enable logging in RAM.
•Flash Memory Logging—Select to enable logging in flash memory.
•Flash Log Size—Enter the maximum number of log messages to store in the 
flash memory log.
STEP  3Enable the event severity levels to be logged for each log type. The severity levels 
are listed from the highest to the lowest severity, as follows:
•Emergency—System is not usable.
•Alert—Action is needed.
•Critical—System is in a critical condition.
•Error—System is in error condition.
•Warning—System warning has occurred.
•Notice—System is functioning properly, but a system notice has occurred. 
						

							Administration
System Logs
Cisco Small Business SG200 Series 8-port Smart Switch53
3
 
•Informational—Device information.
•Debug—Provides detailed information about an event.
NOTE: When you select a severity level, any events of that level or higher are 
automatically selected for logging.
STEP  4Click Apply. Your changes are saved to the Running Configuration.
Configuring Remote Log Servers
You can define one or more remote log servers that the switch sends Syslog 
messages to. Use the Remote Log Servers page to define log servers and to set 
the severity level of the log events to be sent to the server. 
To enable Syslog operation and configure a remote log servers:
STEP 1Click Administration > Remote Log Servers in the navigation window.
STEP  2For the Syslog Logging mode, click Enable, and then configure the following 
settings:
•Facilit y—Select a value from the list that identifies the classification of 
syslog messages from this switch. The meaning of these values (Local 0 
through Local 7) is determined by the network administrator.
•Local Port—Specify the IANA port number for the switch. The default is the 
well-known port number for the Syslog protocol, 514.
STEP  3Click Apply.
STEP  4In the Remote Log Server Table, click Add.
STEP  5Enter the parameters:
•Log Server—IPv4 address or hostname of the server to send logs to.
•UDP Port—The logical UDP port number the remote server uses for the 
Syslog protocol. The default value is the well-known IANA Syslog port 
number, 514.
•Minimum Severity—Only items that meet or exceed this severity level are 
sent to the remote server. See Configuring Log Settings for a description of 
the severity levels. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch54
3
 
STEP  6Click Apply and then click Close. Your changes are saved to the Running 
Configuration.
File Management
You can use the file management features to upgrade or backup the firmware, 
update the language files, save configuration changes, copy configuration files 
within the switch, and set up autoconfiguration feature.
NOTEWhen any download or upload to or from the switch is in progress, all management 
access to the switch is blocked until the transfer is complete to protect the switch 
from any unknown changes.
NOTEWhen logging in by using HTTP/HTML, and you can choose from more than one 
network port, you should the lowest number port.
Se e the following topic s for more information on the configuration pages available 
in the File Management menu:
•Upgrading and Backing Up Firmware and Language Files
•Downloading and Backing Up the Configuration and Log Files
•Delete Configuration
•Copying and Saving Configuration Files
•DHCP Auto Configuration
•Firmware Recover y O ver HT TP
•Downloading an Image or Boot Code File From the System Boot Prompt 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch55
3
 
Files and File Types
The following types of configuration and operational files are found on the switch:
•Running Configuration—Parameters that are currently used by the switch 
to operate. It is the only file type that is modified by you when the parameter 
values are changed by using one of the configuration interfaces, and must be 
manually saved to another file type, such as the Startup Configuration, to be 
preserved after a reboot. 
If the switch is rebooted, the Running Configuration is lost. When the switch 
is rebooted, the Startup Configuration stored in the Flash is copied to the 
Running Configuration stored in RAM. 
•Startup Configuration—The parameter values that were saved by you by 
copying another configuration (usually the Running Configuration) to the 
Startup Configuration. 
The Startup Configuration is retained in Flash and is preserved any time the 
switch is rebooted. When it is rebooted, the Startup Configuration is copied 
to RAM and identified as the Running Configuration.
•Backup Configuration—A manual copy of the parameter definitions for 
protection against system shutdown or for the maintenance of a specific 
operating state. You can copy the Mirror Configuration, Startup 
Configuration, or Running Configuration to a Backup Configuration file. The 
Backup Configuration exists in Flash and is preserved if the device is 
rebooted. 
•Mirror Configuration—A copy of the Running Configuration, created by the 
switch after:
-The switch has been operating continuously for 24 hours.
-Configuration changes have been made to the Running Configuration in 
the previous 24 hours, but have not been saved.
Only the switch can copy the Running Configuration to the Mirror 
Configuration. However, you can copy from the Mirror Configuration to other 
file types or to another device. 
•Firmware—The operating system. More commonly referred to as the 
image. 
•Boot Code—Controls the basic system startup and launches the firmware 
image. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch56
3
 
•Language File—The dictionary that allows the windows to be displayed in 
the selected language. 
•Flash Log—SYSLOG messages stored in Flash memory.
•Operational Log—Events that are not saved to the Startup Log.
•Startup Log—The first 32 messages logged when the switch is booted. 
Subsequent messages are logged into the Operational Log. The Startup 
Log is not aged out; it retains the messages until the switch is rebooted.
•Trap Log—SNMP traps.
•SSH Files—Encryption keys used for secure shell communication.
Upgrading and Backing Up Firmware and Language Files
You can use the Upgrade/Backup Firmware/Language page to:
•Upgrade the firmware by downloading a new image from a server.
•Upgrade the boot code by downloading a new boot file from a server.
•Update the language files by downloading a new file from a server. 
Language files determine the language options for the web-based switch 
configuration utility. You can select the display language when you log in.
•Back up the firmware image to a server.
English is always the default language.
NOTEYou can also back up or restore the configuration files. See Downloading and 
Backing Up the Configuration and Log Files for more information. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch57
3
 
To upgrade or backup the firmware or to update the boot code or language file:
STEP 1Click Administration > File Management > Upgrade/Backup Firmware/
Language in the navigation window.
STEP  2Enter the parameters:
•Transfer Metho d—Select the protocol to be used for the file transfer (TFTP 
or HTTP), which corresponds to the type of server you are downloading to 
or uploading from.
•Save Action—Select Upgrade to download a file to the switch, or select 
Backup to copy a file from the switch to the server.
•File Type—Select the type of file to upgrade or back up (you can back up 
only the firmware image):
-Firmware Image—Controls all switch features and interfaces.
-Boot Code—Controls the initial system bootup.
-Language File—Strings used by the system interface to display the 
selected language.
•TFTP Server (TFTP only)—Specify the IPv4 or IPv6 address of the TFTP 
server. Or specify the server name if DNS is enabled in the IP configuration 
(see Domain Name System). 
•Source File Name—For upgrades via TFTP, enter the filename, including the 
path. For upgrades via HTTP, browse and select the file from your computer.
•Destination File Name—For backups via TFTP, enter the filename, including 
the path. This field does not appear for backups via HTTP.
STEP  3Click Apply to begin the upgrade or backup. A progress bar indicates the status of 
the file transfer. A typical image transfer might take 5-6 minutes to complete.
STEP  4Reboot the switch to use the new configuration or firmware. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch58
3
 
WARNINGEnsure that power to the switch remains uninterrupted while downloading an image 
or a boot code file to the switch. If a power failure occurs while downloading a file, 
the file contents in persistent memory are lost.
If a power outage occurs during boot code file download, the switch will not be 
able to boot. Contact the Cisco Small Business Support Center for assistance. 
If a power outage occurs during image download, the image will not load, but the 
boot loader will continue to be operational. See Firmware Recover y Over HT TP 
for instructions on downloading a working image.
Downloading and Backing Up the Configuration and Log Files
You can use the Download/Backup Configuration/Log page to download a saved 
configuration file to the switch to restore previously saved settings, or back up the 
current configuration file to a network location. You also can use this page to back 
up log files.
•Downloading a Configuration File to Restore Settings
•Backing Up the Configuration File and Logs
Downloading a Configuration File to Restore Settings
To download a configuration file to the switch to restore a previously backed-up 
file:
STEP 1Click Administration > File Management > Download/Backup Configuration/
Log in the navigation window.
STEP  2Select the Transfer Metho d (HTTP or TFTP).
STEP  3For the Save Action, select Upgrade to download the file that will be specified 
below. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch59
3
 
STEP  4Enter the following parameters:
•TFTP Server (TFTP only)—Specify the IPv4 or IPv6 address of the TFTP 
server. Or specify the server name if DNS is enabled in the IP configuration 
(see Domain Name System). 
•Source File Name—For TFTP, specify the filename, including the path. For 
HTTP, browse to select the file from your computer.
•Destination File Type—Select one of the following options:
-Startup Configuration—If the specified configuration file is valid, then it 
will replace the current Startup Configuration file. It will be the active 
configuration file when you reboot.
-Backup Configuration—The specified file will replace the current 
backup configuration file.
STEP  5Click Apply to begin the upgrade. A progress bar indicates the status of the 
upgrade.
!
CAUTIONEnsure that power to the switch remains uninterrupted while the configuration file 
is downloading to the switch. If a power failure occurs while downloading the 
configuration file, the file is lost and the process must be restarted. 
Backing Up the Configuration File and Logs
To back up the configuration file or log:
STEP 1Click Administration > File Management > Download/Backup Configuration/
Log in the navigation window.
STEP  2Select the Transfer Method (HTTP or TFTP).
STEP  3For the Save Action, select Backup. 
						

							Administration
File Management
Cisco Small Business SG200 Series 8-port Smart Switch60
3
 
STEP  4Enter the parameters:
•TFTP Server (TFTP only)—Specify the IP address of the TFTP server. Or 
specify the server ’s domain name if DNS is enabled in the IP configuration 
(see Domain Name System).
•Destination File Name (TFTP only)—Specify a name for the saved file, 
including the path on the TFTP server.
•Source File Type—Select the configuration file type:
-Running Configuration—The current configuration, including any 
changes applied in the current management session.
-Startup Configuration—The configuration file saved to flash memory. 
This file does not include any configuration changes applied in RAM but 
not yet saved to the switch.
-Backup Configuration—An additional configuration file saved on the 
switch for use as a backup. The administrator can copy the Backup 
Configuration file to the Startup Configuration file type, then reboot the 
switch to use the Backup Configuration file.
-Mirror Configuration—If the Running Configuration is not modified for at 
least 24 hours, it is automatically saved to a Mirror Configuration file type, 
and a log message with severity alert is g ener ate d to i ndica te t hat  a new 
mirror file is available. This feature allows the administrator to view the 
previous version of the configuration before it is saved to the Startup 
Configuration file type or to copy the Mirror Configuration file type to 
another configuration file type. If the switch is rebooted, the Mirror 
Configuration is reset to the factory default parameters.
-Flash Log—Log of events saved to flash memory.
-Operational Log—Log of events in switch RAM but not saved to flash 
memory.
-Startup Log—The first 32 messages logged when the switch is booted. 
Subsequent messages are logged into the Operational Log.
STEP  5If you are backing up the Operational Log or Startup Log, select the Log Version to 
back up. 
The switch maintains three versions of each log. The Version 1 log is the current or 
most recently created log file, the Version 2 log is the next most recent, and the 
Version 3 log is the oldest.
STEP  6Click Apply.