Maintaining Anti-DDoS Data

Procedure

1. Choose System > System Maintenance > Anti-DDoS Data Maintenance.
2. On the Anti-DDoS Data Maintenance page, click .

   

3. On the Modify Anti-DDoS Data Maintenance Settings page, set parameters by referring to Table 1.

   Table 1 Parameters of maintaining anti-DDoS data

   Parameter	Description	Value
   Original data (days)	Indicates the reservation duration of original data in the database of the anti-DDoS collector.	The default value is 30.
   Hourly summary data (months)	Indicates the reservation duration of hourly summary data in the database of the anti-DDoS collector.	The default value is 12.
   Daily summary data (years)	Indicates the reservation duration of daily summary data in the database of the anti-DDoS collector.	The default value is 1.
   Traffic diversion log (days)	Indicates the reservation duration of traffic diversion logs in the database of the cleaning device.	The default value is 90.
   Device logs (days)	Indicates the duration for the ATIC Management center server to retain the operation logs in the database.	The default value is 30.
   Scheduled daily reports (days)	Indicates the reservation duration of daily reports generated by a scheduled task in the database and hard disk of the ATIC Management center server.	The default value is 60.
   Scheduled weekly reports (months)	Indicates the reservation duration of weekly reports generated by a scheduled task in the database and hard disk of the ATIC Management center server.	The default value is 6.
   Scheduled monthly reports (years)	Indicates the reservation duration of monthly reports generated by a scheduled task in the database and hard disk of the ATIC Management center server.	The default value is 1.
   Scheduled yearly reports (years)	Indicates the reservation duration of yearly reports generated by a scheduled task in the database and hard disk of the ATIC Management center server.	The default value is 5.
   Delay for Canceling Traffic Diversion (seconds)	For dynamic diversion tasks (including both the automatic and manual ones), after the anomaly or attack ends, the diversion persists for a while before it is automatically canceled to ensure that the anomaly or attack traffic is thoroughly cleaned.	The default value is 300. In normal cases, you are advised to use the default value. If the anti-DDoS collector cannot receive the logs about the anomalies from the cleaning device, the delay can be extended.
   Default Blackhole Decapsulation Time (Minutes)	For blackhole traffic diversion tasks created based on anti-DDoS cleaning devices, the system automatically cancels blackhole traffic diversion after this delay period.	The default value is 30.
   Remote Alarm Notification Interval (seconds)	The system summarizes remote alarm notifications and sends them based on preset rules at the specified interval.	The default value is 600.
   The number of pagesize	Indicates the number of pagesize for ATIC Management center.	The default value is 10.

4. Click OK.