Monitor AWS VPC Tunnels using AWS Transit Gateway
Amazon Web Service (AWS) Transit Gateway acts as a cloud router connecting enterprise virtual private clouds (VPCs) to AWS VPCs through a central hub that allows for simplified peering relationships.
Cisco Defense Orchestrator (CDO) allows you to monitor the connection status of your onboarded AWS VPCs using AWS Transit Gateway.
In the CDO menu bar, select VPN > Site-to-Site VPN.
The VPN Tunnels page displays the connection status for all network tunnels managed by your CDO tenant. The connection status for the VPN tunnel can be active or idle.
Select a VPC and under Actions click Check Connectivity to trigger a real-time connectivity check against the tunnel and identify whether the tunnel is currently active or idle. Unless you click the on-demand connectivity check link, a check across all tunnels, available across all onboarded devices, occurs every ten minutes.