Overview

Central networks are billed for each global connection bandwidth used by cross-site connections and for each connection between enterprise routers. Both items support pay-per-use billing. Pay-per-use is a postpaid billing mode. You pay as you go and just pay for what you use. The usage is calculated by the second but billed every hour. This allows you to adjust resource usage easily. You neither need to prepare for resources in advance, nor end up with excessive or insufficient preset resources.

**Table 1** Central network billing mode
Billing Mode	Pay-per-use
Payment	Postpaid
Billing Method	Billed by the second and settled by the hour.
Billed Items	There are two billed items for a central network: Each connection between enterprise routers on the central network Each global connection bandwidth used by cross-site connections on the central network
Changing the Specifications	Global connection bandwidths can be changed.
Application Scenario	Recommended when the resource demands are likely to fluctuate and you want more flexibility.