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Chapter 24 Monitoring BNG Configurations
User Roles Required to Work With BNG
The network topology for BNG can be explained using the foll owing m odel s:
• BNG Retail Model—The subscriber connects to the network over a digital subscriber line (DSL)
circuit into a DSL access multiplexor (DSLAM), which aggregates a number of subscribers. The
DSLAMs are connected to an aggregation network, which groom s th e subsc rib er tra ffic and
switches it to BNG. A sample of the retail model is shown in Figure 24-1.
Figure 24-1 BNG Retail Model
• BNG Wholesale Model—The subscriber’s traffic is handed off by the carrier (who still owns the
infrastructure) toone of the several Internet Service Providers (ISP). There are different ways to
make this handoff, Layer 2 Tunneling Protocol (L2TP) or Layer 3 virtual private networking (VPN)
being two such methods.
The BNG Retail model is used for deployment in Prime Network.
Prime Network provides BNG support for Cisco Aggregation Service Router (ASR) 9000 series network
elements.
The following topics describe more about the BNG configuration details:
• User Roles Required to Work With BNG, page 24-2
• Working with BNG Configurations, page 24-3
User Roles Required to Work With BNG
This topic identifies the roles that are required to work with BNG. Prime Network determines whether
you are authorized to perform a task as follows:
• For GUI-based tasks (tasks that do not affect elements), authorization is based on the default
permission that is assigned to your user account.
• For element-based tasks (tasks that do affect elements), authorization is based on the default
permission that is assigned to your account. That is, wheth er the element is in one of your assigned
scopes and whether you meet the minimum security level for that scope.
For more information on user authorization, see the topic on device scopes in th e Cisco Prime Network
4.0 Administrator Guide.
COREAGG
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