Error: Uplink redundancy degraded on virtual switch "vSwitch1". Physical NIC vmnic3 is down


Hi we are using VMware- Virtual appliance for our network infrastructure .I was working on the server room tidying the cables  and I have received an email triggered from VMware infrastructure as follows:

Target: ESX-001.domain.local
Stateless event alarm
Alarm Definition:
([Event alarm expression: Network Redundancy Degraded] OR [Event alarm expression: Network Redundancy Degraded on DVPorts])
Event details:
Uplink redundancy degraded on virtual switch "vSwitch1". Physical NIC vmnic3 is down. Affected portgroups:"NFS".

At the moment the servers are up and running without any problems.
Please let me know if there is a problem , if so where I need to look at to rectify the problem.

Thanks  and  help will be great.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You have a network interface fail, cable might have been pullled out, so your resilience has been lost.

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Pete LongTechnical ConsultantCommented:
Indeed look at vSwitch1 and one of the uplinks will be down, you probably knocked it out.
Look on the back of the server - one NIC will have no link-lights on, follow that cable, or it thats the end thats out, look for a lose cable :)
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