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### Understand the alert
The `vsphere_outbound_packets_errors` alert is triggered when there is a high number of outbound network errors on a virtual machine's network interface in the last 10 minutes. This alert is related to the vSphere environment and indicates a possible issue with the virtual machine's network configuration or the underlying virtual network infrastructure.
### Troubleshoot the alert
1. Identify the virtual machine with the issue
The alert should show you the name or identifier of the virtual machine(s) facing the high number of outbound packet errors.
2. Check the network interface configuration
Verify the virtual machine's network interface configuration within vSphere. Please ensure the configuration matches the expected settings and is correctly connected to the right virtual network.
3. Monitor virtual network infrastructure
Inspect the virtual switches (vSwitches), port groups, and distributed switches in the vSphere environment. Look for misconfigurations, high packet loss rates, or other issues that may cause these errors.
4. Check physical network infrastructure
Investigate if there are any problems with the physical network components, such as NICs (Network Interface Cards), switches, or cables. As issues at the physical layer could also result in network packet errors.
5. Examine virtual machine logs
Review the virtual machine's logs for any network-related errors or warnings. This might give you more information about the root cause of the problem.
6. Update network drivers and tools
Ensure that the latest version of network drivers and VMware tools are installed on the virtual machine. Outdated or incorrect drivers can result in packet errors.
7. Contact support
If you cannot resolve the issue after completing the above steps, contact your vSphere support team for further assistance.
### Useful resources
1. [vSphere Networking Guide](https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-7CB8DB92-468E-404E-BC56-EC3241BFC2C6.html)
2. [VMware Network Troubleshooting](https://kb.vmware.com/s/article/1004099)
3. [Troubleshooting VMware Network Performance](https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/virtual_network_performance-white-paper.pdf)
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