Amazon CloudWatch now supports network health indicator for TGW inter-Region peering using synthetic monitors

With synthetic monitors in Amazon CloudWatch Network Monitoring, you can now determine whether a network performance issue on a path that crosses an AWS Transit Gateway inter-Region peering connection is caused by the AWS network. This helps network operators and application developers cut the time spent isolating the source of degradation on these paths. Previously, for synthetic monitors, the network health indicator (NHI) covered only paths that connect through AWS Direct Connect.