A server room's air conditioning system has failed over the weekend, resulting in unusually high temperatures. The following Monday, users report intermittent access to network resources. Upon inspecting the network devices, you observe that several switches have rebooted multiple times since the air conditioning failure. Which network operation best practice was most likely overlooked leading to the observed issues?
Redundant Layer 3 routing protocols configuration
Implementation of advanced intrusion detection systems
Proper setting up of Quality of Service (QoS)
Consistent checking of network cable integrity
Regular update of antivirus software on switches
Environmental monitoring for temperature