Manual Chapter :
How to Diagnose Network Connection Issues
Applies To:
Show Versions
BIG-IP DNS
- 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0
How to Diagnose Network Connection Issues
Diagnosing network connection issues
To help you diagnose network connection issues, you can view the status of and statistics about the iQuery® connections between BIG-IP® Global Traffic Manager™ (BIG-IP DNS) and other BIG-IP systems on your network. iQuery connection information displays for IP addresses that are configured on BIG-IP server objects.
Viewing iQuery statistics
Ensure that the BIG-IP®
DNS configuration contains at least one BIG-IP server object with a self IP
address.
To view information about the connections between BIG-IP DNS and other BIG-IP systems,
view iQuery® statistics.
To view information about the iQuery® connections between a
different BIG-IP DNS and the BIG-IP systems in your network, log in to
that BIG-IP DNS and repeat this procedure.
iQuery statistics descriptions
The information in the table describes the iQuery® statistics.
| iQuery Statistics | Description |
|---|---|
| IP Address | Displays the IP addresses of the servers that have an iQuery connection with this BIG-IP® DNS. |
| Server | Displays the name of the server with the specified IP address. |
| Data Center | Displays the data center to which the specified server belongs. |
| iQuery State | Displays the state of the iQuery connection between the specified server and the BIG-IP DNS. Possible states are:
|
| iQuery Reconnects | Displays the number of times the BIG-IP DNS re-established an iQuery connection with the specified server. |
| Bytes In | Displays the amount of data in bytes received by the BIG-IP DNS over the iQuery connection from the specified server. |
| Bytes Out | Displays the amount of data in bytes sent from the BIG-IP DNS over the iQuery connection to the specified server. |
| Backlogs | Displays the number of times the iQuery connection between the BIG-IP DNS and the specified server was blocked, because iQuery had to send out more messages than the connection could handle. |
| Bytes Dropped | Displays the amount of data in bytes that the iQuery connection dropped. |
| SSL Certificate Expiration | Displays the date the SSL certificate expires. |
| Configuration Time | Displays the date and time that the BIG-IP DNS configuration was last modified. The timestamps should be the same for all devices in a BIG-IP DNS synchronization group. |
