Solved

ESXi Host Alert

Posted on 2014-11-26
6
543 Views
Last Modified: 2014-12-12
Hi Experts,

Suddenly I have started to receive the following alerts from one of our ESXi hosts, I tried to reboot the hosts but still the issue is not fixed yet, can you please advise what I need to look at for the investigation.

Event alarm expression: Lost Network Connectivity; Status = Yellow] OR [Event alarm expression: Lost Network Connectivity; Status = Red] OR [Event alarm expression: Lost Network Connectivity to DVPorts; Status = Red] OR [Event alarm expression: Restored Network Connectivity to DVPorts; Status = Green] OR [Event alarm expression: Restored network connectivity to portgroups; Status = Green])
 
Event details:
 Lost network connectivity on virtual switch "vSwitch10". Physical NIC vmnic20 is down. Affected portgroups:"VLAN65", "VLAN39", "Management Network".

Those VMs are in the hosts, they are up and running without any issues but not sure why the alert is generating each day.
0
Comment
Question by:ipsec600
6 Comments
 
LVL 15

Accepted Solution

by:
Haris Djulic earned 167 total points
ID: 40468497
Hi,

i think the key word here is the Physical NIC vmnic20 is down , and since the VM are working fine most probably the vSwitch10 has multiple NIC  i.e. there is a failover option...

Check the settings for the vSwitch10  and status for the NIC vmnic20 ...
0
 
LVL 119

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 167 total points
ID: 40468509
Check your physical switch, and check a cable has not been removed from the server!

Sometimes, this does occur at random.
0
 
LVL 55

Expert Comment

by:andyalder
ID: 40469215
With 10Gb Qlogic NICs it happens all the time :(
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
LVL 12

Assisted Solution

by:Vaseem Mohammed
Vaseem Mohammed earned 166 total points
ID: 40469359
In one of my experience an ESXi server with 4 nics on which  2 vSwitch with 2 nics each, one of the nic was flipping online/offline.
After moving the effected nic to different vSwitch, it worked fine, don't know why the nic didn't like vSwitch1.
0
 
LVL 119
ID: 40469375
sometimes referred to as a "flapping port"
0
 

Author Closing Comment

by:ipsec600
ID: 40496346
Thank you Guys for your reply, all of your advise helps to investigate and apology for the delay feedback.
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In this article, I will show you HOW TO: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
Is your company's data protection keeping pace with virtualization? Here are 7 dynamic ways to adapt to rapid breakthroughs in technology.
Teach the user how to install log collectors and how to configure ESXi 5.5 for remote logging Open console session and mount vCenter Server installer: Install vSphere Core Dump Collector: Install vSphere Syslog Collector: Open vSphere Client: Config…
Teach the user how to use vSphere Update Manager to update the VMware Tools and virtual machine hardware version Open vSphere Client: Review manual processes for updating VMware Tools and virtual hardware versions: Create a new baseline group in vSp…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question