| Measurement |
Description |
Measurement Unit |
Interpretation |
| In_connection_rate |
Indicates the connections per second received by this IGEL Endpoint. |
Connections/sec |
A high value can indicate an increase in input load. |
| Out_connection_rate |
Indicates the connections per second initiated by this IGEL Endpoint. |
Connections/sec |
A high value can indicate that one or more of the applications executing on the IGEL Endpoint have started using a number of TCP connections to some other guest or host. |
| Current_connections |
Indicates the currently established connections. |
Number |
A sudden increase in the number of connections established on an IGEL Endpoint can indicate either an increase in load to one or more of the applications executing on the IGEL Endpoint, or that one or more of the applications are experiencing a problem (e.g., a slow down).
Use the detailed diagnosis of this measure to list the foreign IP addresses with maximum number of established TCP connections. |
| Connection_drop_rate |
Indicates the rate of established TCP connections dropped from the TCP listen queue. |
Connections/sec |
This value should be 0 for most of the time. Any non-zero value implies that one or more applications on the IGEL Endpoint are under overload. |
| Connection_failure_rate |
Indicates the rate of half open TCP connections dropped from the listen queue. |
Connections/sec |
This value should be 0 for most of the time. A prolonged non-zero value can indicate either that the server is under SYN attack or that there is a problem with the network link to the server that is resulting in connections being dropped without completion. |