Hyper-V and Failover Cluster Managers high network usage.

Mat Ewins 1 Reputation point
2020-08-19T10:30:18.6+00:00

Is anyone able to explain to me why these two products constantly generate 5Mbps of network traffic when open?

For example. When I have Failover Cluster Manager open connected to our two Hyper-V clusters, one on my local LAN and one over a 10Mbps link to another datacentre, our network monitoring shows a constant 5Mbps of activity on the 10Mbps link. When I close Failover Cluster Manager the usage drops right down.

I don't understand what is generating this traffic. I'm not doing anything with the VMs and I don't have any consoles open.

Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. TimCerling(ret) 1,156 Reputation points
    2020-08-19T13:49:00.077+00:00

    The Failover Cluster Manager is monitoring in real time the status of the cluster. It will show you immediately any state change in the cluster. The fact that this is a Hyper-V cluster is immaterial, as the cluster manager is viewing the VMs as cluster resources. If it were a SQL Server cluster, or a file service cluster, you would see similar traffic as the management cluster continually monitors the state of those cluster resources.

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