| Measurement |
Description |
Measurement
Unit |
Interpretation |
| In_connection_rate |
Indicates the connections per second received by the guest. |
Conns/Sec |
A high value can indicate an increase in input load. |
| Out_connection_rate |
Indicates the connections per second initiated by the guest. |
Conns/Sec |
A high value can indicate that one or more of the applications executing on the guest 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 a guest can indicate either an increase in load to one or more of the applications executing on the guest, or that one or more of the applications are experiencing a problem (e.g., a slow down). On Microsoft Windows, the current connections metrics is the total number of TCP connections that are currently in the ESTABLISHED or CLOSE_WAIT states. |
| Connection_drop_rate |
Indicates the rate of established TCP connections dropped from the TCP listen queue. |
Conns/Sec |
This value should be 0 for most of the time. Any non-zero value implies that one or more applications on the guest are under overload. |
| Connection_failure_rate |
Indicates the rate of half open TCP connections dropped from the listen queue. |
Conns/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. |