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Name
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Name of the Logging feature configuration.
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Description
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(Optional) Description of the Logging feature configuration.
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Max File Size (in Megabytes)
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Maximum file size for each log file that a Cisco Catalyst Wireless Gateway device stores locally. After reaching the maximum size, the device creates a new log file, with a numerically sequenced filename.
The device stores the first log file locally with the filename, "messages". After it reaches the maximum file size, it creates
new log files using the following filename format:
messages.number
Default: 10
Range: 1 through 20
Examples:
messages
messages.1
messages.2
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Rotations
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Maximum number of log files to store locally.
After the maximum number of log files is stored, the next log file that the device saves overwrites the oldest log file.
For example, if you configure 3 rotations, the device first saves a log file called messages. When the messages file reaches
the maximum file size, the device creates a file called messages.1 to continue saving log messages. When messages.1 reaches
its maximum size, the device creates a new message file called messages.2. When messages.2 reaches its maximum size and the
device needs to create a new file, the device deletes the original messages file (which is the oldest) and begins writing
a file called messages.3.
Default: 10
Range: 1 through 10
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Add Server
(in the Server area)
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(Optional) Configure up to four servers on which to save log message files remotely.
When you click Add Server, the Add Server pop-up window appears. The fields in the pop-up window are described below.
The log message file size is limited only by the file system of the server, and is not determined by the Max File Size field described above.
Devices save the log message file using the hostname of the device itself in the server’s /var/log directory, in the following
format:
hostname.log
Example (for a Cisco Catalyst Wireless Gateway device with hostname cwg100):
/var/log/cwg100.log
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Hostname/IP Address
(in the Add Server pop-up window)
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Hostname or IP address of the server.
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Priority
(in the Add Server pop-up window)
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Filter the type of log messages saved using one of the following priority options, listed from lowest to highest priority.
Each priority option configures the device to save log messages of that priority and all higher priorities. For example, information
is the lowest priority of message, so choosing information includes information log messages and all other log messages too.
Choosing error excludes information, notice, and warn log messages, but includes error messages and all other log messages of higher priority
(critical, alert, and emergency).
From lowest to highest priority, the options are the following:
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information
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notice
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warn
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error
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critical
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alert
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emergency
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Source IP
(in the Add Server pop-up window)
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Choose one of the following:
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System IP: (Default) For system log messages that include the system IP address of the Cisco Catalyst Wireless Gateway device, the log message uses the default system IP address of the device. The system IP address is the unique address that
you assign to the device when onboarding to Cisco SD-WAN Manager. We recommend using this option.
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Device Specific IP: For system log messages that include the device-specific IP address of the Cisco Catalyst Wireless Gateway device, the log message uses a manually configured custom IP address of the device. The device-specific IP is a unique IP
address manually configured for each device.
The workflow is as follows:
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Choose the Device Specific IP option.
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When you apply the configuration group to one or more Cisco Catalyst Wireless Gateway devices, Cisco SD-WAN Manager prompts you for a device-specific IP address for each device. Each device creates a loopback interface using the device-specific
IP address that you have entered. This address then appears in system log messages for the device.
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