NSX-T Edge disconnected from managers after restoring NSX to an older version
Article ID: 322627
Updated On:
Products
Issue/Introduction
- A restore has taken place of NSX Manager.
- Edge Nodes show disconnected state in UI.
- NSX manager will not be able to communicate with the edges which are already in "Upgraded version".
- The user will not be able to do any update on this edge nodes and no status information of these edge transport nodes will be available.
- /var/log/syslog on the Edge Node will display entries similar to:
2022-05-20T15:58:13.989Z localhost NSX 2251 - [nsx@6876 comp="nsx-edge" subcomp="nsx-proxy" s2comp="nsx-rpc" tid="2487" level="ERROR" errorCode="RPC503"] RpcTransport[0]::RemoteService[########-c59e-####-ae05-bc10ab18dca2] Failed to resolve service: 6-No such device or address
Environment
VMware NSX
VMware NSX-T Data Center 3.x
Cause
The backup does not contain a whitelist entry for the later version Edges (this whitelisting task is completed by the upgrade coordinator).
Resolution
This is a known issue affecting VMware NSX-T 3.x and later. The issue is resolved in NSX version 4.1.1 and above.
Workaround:
Trigger the upgrade of the Edge component from the NSX Manager.
If the above workaround does not resolve the issue. Please collect the following support bundles and open a case with Broadcom support.
1) NSX manager support bundle
2) Edge support bundles.
Please refer the below document for collecting the support bundle.
https://techdocs.broadcom.com/us/en/vmware-cis/nsx/nsxt-dc/3-2/administration-guide/operations-and-management/collect-support-bundles.html
Additional Information
The issue may also occur when the API certificates have changed after restore. This is documented in KB https://knowledge.broadcom.com/external/article/369991
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