Digi TransPort WR31 User Manual page 236

Configure network interfaces
Generate an event after this interface has been up for m minutes
The number of minutes, if any, after which the router should create an event in the event log that
states that the interface has been active for this period.
Limit the data transmitted over this interface
When enabled, displays the following parameters controlling data volume restrictions (if any)
for this interface.
Issue a warning event after n units
The amount of traffic which causes a warning event to be generated in the event log stating that
the specified amount of data has been transferred. The units are specified by a drop-down list,
having the following options; KBytes, MBytes, GBytes. For example, if the monthly tariff
includes up to 5MB of data before excess usage charges are levied, it would be useful to set this
threshold to 4MB. This would cause the router to create a warning entry in the event log once
4MB of data had been transferred. You could use this event to trigger an email alert, SNMP trap,
or SMS alert message.
Stop data from being transmitted after n units
The total amount of data that may be transmitted by this PPP instance before the link is blocked
for further traffic, and the value in the drop-down list specifies the units which are kilobytes,
megabytes, gigabytes.
Reset the data limit on the n day of the month
The value in this text box specifies the day of the month on which the data limit is reset to 0.
Digi TransPort WR Routers User Guide
Configure ISDN interfaces
236