In an NSX environment, an administrator is observing low throughput and congestion between the Tier-0...

Configure ECMP on the Tier-0 gateway: ECMP (Equal-Cost Multi-Path) allows multiple paths for traffic between the Tier-0 Gateway and the upstream physical routers, effectively distributing the traffic load and improving throughput. By enabling ECMP, you can reduce congestion and increase bandwidth utilization, thus addressing performance issues.

Deploy Large size Edge node/s: Deploying larger Edge nodes can provide more resources (CPU, memory, and network interfaces) to handle higher throughput and reduce congestion. This is especially important if the existing Edge node is overwhelmed by the amount of traffic.