Reactive monitoring of guests in a hypervisor environment

A computer program product for detecting and reacting to a network discrepancy within a data center network environment, the computer program product comprising:

• a storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
• monitoring network traffic between a first computer configured as a first hypervisor inter-networked within the data center network environment and a second computer inter-networked within the data center network environment in order to detect a presence of a predetermined condition representing a presence of the network discrepancy in the data center network environment between a recorded state of the data center network environment and an observed state of the data center network environment, wherein the monitoring includes determining the observed state of the data center network environment using one of polling, event-based or a combination thereof;
• rectifying, upon the detection of the presence of the predetermined condition, an effect associated with the presence of the predetermined condition in the data center network environment.