Summary
Table 17-1 summarizes the use cases covered in this chapter. For each scenario, the technical requirements are listed (for example, if a time stamp is necessary), followed by the proposed accounting technique.
| Use Case | Applicability | Requirements and Prerequisites | Technique |
|---|---|---|---|
| Time-Based Billing | Dial-in Legacy voice pWLAN | Clock synchronization between the servers and an external NTP source | AAA infrastructure Voice switch Billing server SS7 infrastructure |
| pWLAN | Broadband for roaming users | Subscriber registration or credit card payment, etc. | AAA infrastructureBilling server |
| Dial-in | Low-speed modem access | Subscriber registration or pay-per-call services | AAABilling server |
| Volume-Based Billing | Broadband accessTransit and peering agreements | Metering of all conversations | Interface MIBs NetFlow IP Accounting IPDR |
| Residential broadband access (DSL or cable) | Broadband for residential users | Metering at access point | DOCSIS MIB SAMIS IPDR |
| Transit and peering agreements | Service provider interconnect | Identify traffic source and destination (on-net/off-net traffic) | Interface MIBs NetFlow IP Accounting MAC address |
| Destination-Sensitive Billing | Destination-Sensitive billing | Identify path and providers between source and destination; traffic correlation between user request and server response | BGP Policy Accounting NetFlow Mediation server Billing server |
| Time- and Distance-Based Billing | Legacy voice | Voice infrastructure | SS7 infrastructure |
| Service-Based Billing | Content provider, service selection, VoD | Application-based accounting and billing | Service application SSG SAMIS Billing server |
| VoD | Broadband for residential users | Subscriber registration or credit card payment | AAA infrastructure Content server Billing server |
| Enterprise Departmental Charge Back | Sharing Internet access | Aggregate users to departments | Interface MIBsNetFlow |
| Flat Rate | "All you can eat" | Sufficient bandwidth | Nothing |
