TPVM Upgrade Workflow States


TPVM Upgrade State	Next State	Case	Description
TPVM Upgrade Workflow Started	Device Validation	-Normal Upgrade -Node Replacement	Initial start state for the TPVM upgrade workflow.
Device Validation	Success: TPVM Config Validation Failure: TPVM Upgrade Workflow Finished	-Normal Upgrade -Node Replacement	Ensure that the provided device IP has associated TPVM configurations persisted in the EFA DB, and the device‘s TPVM IP is one of the EFA peer node IPs.
TPVM Config Validation	-Normal Upgrade: Success: TPVM Upgrade Failure: TPVM Upgrade Workflow Finished -Node Replacement: Success: TPVM Configuration Failure: TPVM Upgrade Workflow Finished	-Normal Upgrade -Node Replacement	Read TPVM config and operational data from the device and determine if it is a normal TPVM Upgrade or a Node Replacement case. If TPVM config and operational data are present on the device and TPVM IP is one of the EFA peers, then it is a normal TPVM upgrade case. If there is no TPVM config present on the device, then it is a node replacement case. If TPVM config and operational data are present on the device and TPVM IP does not match one of the EFA peers, then validation for a normal TPVM upgrade was unsuccessful. The detailed status column from the tpvm-upgrade show command output shows the nature of the issue and possible remedy.
TPVM Configuration	Success: TPVM Installation Failure: TPVM Upgrade Workflow Finished	-Node Replacement	Device‘s running-config is programmed using TPVM config data from EFA DB.
TPVM Installation	Success: EFA Deploy Peer and Rejoin Failure: TPVM Upgrade Workflow Finished	-Node Replacement	TPVM install and start is invoked on the device.
TPVM Upgrade	Success: EFA Deploy Peer and Rejoin Failure: TPVM Revert	-Normal Upgrade	TPVM upgrade is invoked on the device.
TPVM Revert	Success: TPVM Upgrade Workflow Finished Failure: TPVM Upgrade Workflow Finished	-Normal Upgrade	On failure of “Upgrading TPVM” or “Deploying EFA for Rejoin”, the TPVM revert is invoked to roll-back the failed TPVM upgrade.
EFA Deploy Peer and Rejoin	Success: TPVM Upgrade Workflow Finished Failure: TPVM Revert	-Normal Upgrade -Node Replacement	On active EFA node, re-deploying of EFA on the peer node for rejoin is invoked.
TPVM Upgrade Workflow Finished	N/A	-Normal Upgrade -Node Replacement	End state for the TPVM upgrade workflow.