NSX-T Global Manager error "Location X is not reachable, Networking entities needs to be reviewed"

Products

• VMware NSX

Issue/Introduction

• On the Global Manager under Configuration -> Location Manager, a red banner is displayed "Location X is not reachable, Networking entities needs to be reviewed"
• On the Local Manager under Configuration -> Location, the Global Manager connection is displayed as green and Active.
• The environment is functioning as normal with no known issues.

Environment

VMware NSX-T Data Center 3.x

Cause

This UI error is a false positive. The incorrect status occurs due to a mismatch between the persisted and in-memory connection values.

Resolution

This issue is resolved in VMware NSX-T Data Center 3.2.0

Workaround:
To workaround this issue and clear the error banner, a restart of the Async Replicator service on the Global Manager is required. The restart must be perform on the Global Manager which is the leader of the AR service.

• To identify the AR Leader, on any Global Manager as admin user

#get cluster status verbose

Group Type: ASYNC_REPLICATOR
Group Status: STABLE

Members:
UUID FQDN IP STATUS
########-####-####-####-##########56 global1 10.#.#.# UP
########-####-####-####-##########48 global2 10.#.#.# UP
########-####-####-####-##########11 global3 10.#.#.# UP

Leaders:
SERVICE LEADER LEASE VERSION
site-manager ########-####-####-####-##########56 740
ar ########-####-####-####-##########56 737   <<<< AR Leader UUID

 

• ssh as admin user to the Global Manager identified above

Restart the AR service : 

#service async-replicator-service restart

Alternatively a reboot of the GM appliance can be performed.