How Do I Calculate the Number of Protected VPCs and the Peak Protection Traffic at the VPC Border?

Pay-per-use firewalls are charged based on the actual protection status. The maximum bandwidth of a pay-per-use firewall (total traffic that can pass through the firewall) is 1 Gbit/s.

Yearly/Monthly CFW: By default, the CFW professional edition protects two VPCs, providing 200 Mbit/s protection for VPC border traffic. To protect more inter-VPC traffic, you can purchase more VPC protection quotas. Each quota provides 200 Mbit/s protection for VPC border traffic.

For example, CFW protects two VPCs (200 Mbit/s in total) by default. To protect 1 Gbit/s VPC border traffic, you need to purchase four more quotas (4 x 200 Mbit/s). The VPC border protection traffic = Default protection traffic (200 Mbit/s) + 4 x VPC protection quotas (200 Mbit/s) = 1 Gbit/s.