Configures Domain Name System (DNS) cache analytics.
| dns | Domain Name System. |
| cache | Specifies DNS cache. |
| analytics | Specifies configuring DNS analytics. |
| timeout | Specifies setting the timeout period for analyzed DNS queries. After this time, existing entries are flushed. |
| minutes | Specifies the timeout value in minutes. The range is 1 to 1,440. The default is 1,440. |
| max-entries | Specifies the maximum number of analyzed DNS queries in the database. When this limit is met, new entries start replacing old entries. |
| max_entries | Specifies the value for the maximum analyzed queries. The range is 1,000 to 10,000. The default is 10,000. |
The default for the timeout period is 1,440 minutes.
The default for the maximum number of entries is 10,000.
If query Q1 is learned at time t1 and the timeout period is configured as 5 minutes, this entry is removed within t1 + 5 minutes.
To manually clear the DNS cache analytics, use the command clear dns cache analytics entries {{vr} vr_name}.
The following example sets the maximum number of entries to 2,000:
# configure dns cache analytics max-entries 2000
The following example sets the timeout period to 500 minutes:
# configure dns cache analytics timeout 500
This command was first available in ExtremeXOS 30.3.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.