Tier-0 HA shows state DOWN for one edge node in NSX manager UI

Products

• VMware NSX

Issue/Introduction

• Tier-0 is configured in Active/Standby.
• Tier-0 HA shows state DOWN for one edge node.

NSX manager log indicates 'No northbound connectivity from the edge.'

/var/log/phonehome-coordinator/phonehome-coordinator.log
#### ERROR pool-87-thread-4 MonitoringServiceImpl 76063 MONITORING [nsx@6876 alarmId="4f254bbf-a5c9-####-####-d7f147fbc036" alarmState="OPEN" comp="nsx-manager" entId="dcf130f8-####-####-8dac-bbe4ea426ae7" errorCode="MP701099" eventFeatureName="routing" eventSev="HIGH" eventState="On" eventType="routing_down" level="ERROR" nodeId="dc7dc775-####-44f7-####-6b2e1b76bbc9" subcomp="monitoring"] No northbound connectivity from the edge.

NSX Edge log edge/logical_topology shows 'Routing Down'

Edge node
=========
    UUID: d##d.*b##9 / status: Up (Routing Down)
    MGMT 10.#.#.# / VTEP 10.#.#.#

    Loss of all tunnels events: (none)
    Max BFD rx packet gap: 1001 ms @ ##-##-## ##:##:##

    peer edge f##8.*5##a
        --> 10.#.#.#      (mgm BFD) Up/Up  tx/rx: 450/445
        --> 10.#.#.#      (tun BFD) Up/Up  tx/rx: 447/448

Topology and HA
===============
    T0 SR 93##.*##74 (A/S | Preemptive | rank 0 | Down, Routing Down)

Environment

VMware NSX

Cause

Northbound routing from the NSX Edge is unavailable. All upstream BGP peering sessions are currently in a down state, and no egress static routes are configured to reach the physical network.

Resolution

Diagnose and restore northbound connectivity (BGP or Static routes) between NSX edge and the uplink router.

Additional Information

Troubleshooting NSX BGP