VMware Cloud Foundation: Cloud Builder Fails to Create Transport Node Collection.

Products

• VMware NSX
• VMware Cloud Foundation
• VMware SDDC Manager

Issue/Introduction

• During SDDC Manager deployment using VCF Cloud Builder, the "Create Transport Node Collection" task fails. The following error is observed:

  Unable to create transport node collection with profile <########-####-####-####-############> on compute collection <########-####-####-####-############>:domain-c9 through nsxmanager <nsxmanager.example.com>

• nslookup for the NSX Manager and ESXi hosts may/may not resolve or returns a communication error timeout for the DNS server address on port 53.

• The DNS address displayed in the error of "Resolve" task may not exist, may be unreachable, or lacks the required lookup records.
  
  

Environment

VMware Cloud Foundation

VMware SDDC Manager

VMware NSX

Cause

The Transport Nodes (TNs) and NSX Manager are configured with multiple DNS servers, and the system is unable to resolve the FQDNs for the TNs and NSX Manager. This occurs when non-functional DNS server entries are present, causing a communication timeout on port 53.

Resolution

• Verify the DNS server addresses configured on all ESXi hosts (Transport Nodes) and the NSX Manager.

• Ensure the primary DNS server is reachable and functional over port 53 (TCP/UDP).

• Remove any non-functional or unreachable DNS server entries from both the ESXi hosts and the NSX Manager.

• Verify forward and reverse DNS resolution for the NSX Manager and ESXi hosts using nslookup.

• Retry the failed task in VCF Cloud Builder.

 

Additional Information

• Creating a Workload Domain from SDDC Manager fails at creating NSX transport Node collection stage

• Adding Host through SDDC fails with "Unable to create transport node collection with profile..."