VM Connectivity Test
Sometimes, a VM could be in a powered-on state, but the failure of the VM operating system or any fatal error in VM operations could have rendered the VM inaccessible to users. In order to enable administrators to promptly detect such ‘hidden’ anomalies, the eG agent periodically runs a connectivity check on each VM using the VM Connectivity test, and reports whether the VM is accessible over the network or not.
Target of the test : A Hyper-V / Hyper-V VDI server
Agent executing the test : An internal agent
Output of the test : One set of results for each VM configured on the Hyper-V host being monitored
|
Measurement | Description | Measurement Unit | Interpretation |
---|---|---|---|
Avg network delay |
Indicates the average delay between transmission of packet to a VM and receipt of the response to the packet at the source. |
Secs |
An increase in network latency could result from misconfiguration of the router(s) along the path, network congestion, retransmissions at the network, etc. |
Min network delay |
The minimum time between transmission of a packet and receipt of the response back. |
Secs |
A significant increase in the minimum round-trip time is often a sure sign of network congestion. |
Packet loss |
Indicates the percentage of packets lost during transmission from source to target and back. |
Percent |
Packet loss is often caused by network buffer overflows at a network router or by packet corruptions over the network. The detailed diagnosis for this measure provides a listing of routers that are on the path from the external agent to target server, and the delays on each hop. This information can be used to diagnose the hop(s) that could be causing excessive packet loss/delays. |
Network availability of VM |
Indicates whether the network connection is available or not. |
Percent |
A value of 100 indicates that the VM is connected. The value 0 indicates that the VM is not connected. Typically, the value 100 corresponds to a Packet loss of 0. |