Networking
Network Load Balancer (NLB)
- Timebilled
- Bytesbilled
- Callsnot billed
In one line
Long-lived TCP flows drive this one. Hourly fee plus NLCUs, with flows counted as a dimension.
What gets missed
One of three dimensions wins each hour: new flows, peak concurrent flows or processed bytes. Concurrent flows are sampled every minute, so idle-but-open connections bill even with almost no traffic.
Find it on your bill
Filter Cost Explorer or your Cost and Usage Report by these usage types. A usage type with no region prefix means us-east-1.
LoadBalancerUsageLCUUsageReservedLCUUsage
Bills the same way
These services turn exactly the same meters, so what you learn here transfers.