The provided MTU for Distributed vSphere Switch which is going to be used for Host Overlay is 1500. Must be at least 1600

Products

• VMware SDDC Manager / VCF Installer

Issue/Introduction

• When installing VMware vSphere Foundation (VVF) 9.1 - a validation error for "Deployment Specification" is encountered.
• The failure error is -

The provided MTU for Distributed vSphere Switch which is going to be used for Host Overlay is 1500. Must be at least 1600

Remediation: Provide a valid MTU for Distributed vSphere Switch which is going to be used for Host Overlay is 1500 in the input specification. Must be at least 1600

Environment

VVF 9.1

Cause

The environment is configured to use MTU 1500, as MTU 1600 minimum is required - the error observed is encountered.

Resolution

• Reconfigure the environment to use MTU 1600
• Retry the workflow
• It is now expected to succeed