Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
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ASN Gateway Service Operation and Configuration
Terminology ▀
Cisco ASR 5000 Series Access Service Network Gateway Administration Guide ▄
OL-22953-01
DHCP: This is the interface used by the ASN Gateway to communicate with a Dynamic Host Control Protocol
(DHCP) Server. You can configure the system to dynamically provide IP addresses for contexts from the
DHCP server.
DHCP server.
Bind DHCP interfaces to ports on the Ethernet line cards.
Reference Point R3: This is the interface between the ASN and the CSN that supports AAA, policy
enforcement, and mobility management capabilities. It also encompasses the bearer plane methods (for
example, tunneling) to transfer user data between the ASN and the CSN. R3 supports three types of clients:
PMIPv4, CMIPv4, and CMIPv6. CMIPv6 is IPv4 and IPv6 support for Proxy Mobile IP (PMIP) and Client
Mobile IP (CMIP).
example, tunneling) to transfer user data between the ASN and the CSN. R3 supports three types of clients:
PMIPv4, CMIPv4, and CMIPv6. CMIPv6 is IPv4 and IPv6 support for Proxy Mobile IP (PMIP) and Client
Mobile IP (CMIP).
Reference Point R4: This is the interface between the ASN Gateways and consists of the set of control and
bearer plane protocols originating and terminating in various functional entities of an ASN. R4 coordinates
mobile station mobility between ASNs and ASN Gateways. R4 is the only interoperable RP between similar or
heterogeneous ASNs.
mobile station mobility between ASNs and ASN Gateways. R4 is the only interoperable RP between similar or
heterogeneous ASNs.
Reference Point R6: This the interface used between the ASN base station and ASN Gateway and consists of
the set of control and bearer plane protocols for communication between the base station and the ASN
Gateway. The bearer plane consists of an intra-ASN data path between the ASN and ASN gateway. The
control plane includes protocols for data path establishment, modification, and release control, in accordance
with mobile station mobility events. R6, in combination with R4, may serve as a conduit for the exchange of
MAC state information between base stations that cannot inter-operate over R8.
Gateway. The bearer plane consists of an intra-ASN data path between the ASN and ASN gateway. The
control plane includes protocols for data path establishment, modification, and release control, in accordance
with mobile station mobility events. R6, in combination with R4, may serve as a conduit for the exchange of
MAC state information between base stations that cannot inter-operate over R8.
Reference Point R7: R7 consists of the optional set of control plane protocols (for example, AAA and Policy
coordination) in the ASN Gateway, and other protocols, that co-ordinate the two groups of functions identified
in R6.
in R6.
Bindings
A binding is an association between elements within the system. There are two types of bindings: static and dynamic.
Use static binding to associate:
A specific logical interface (configured within a particular context) to a physical port. Once the interface is
bound to the physical port, traffic can flow through the context just as if it were any physically defined circuit.
Static bindings support any encapsulation method over any interface and port type.
Static bindings support any encapsulation method over any interface and port type.
A service to an IP address assigned to a logical interface within the same context. This allows the interface to
take on the characteristics (that is, support the protocols) required by the service. For example, an ASN
Gateway service bound to a logical interface causes the logical interface to take on the characteristics of an RP
(R6) interface within a WiMAX network.
Gateway service bound to a logical interface causes the logical interface to take on the characteristics of an RP
(R6) interface within a WiMAX network.
Use dynamic binding to associate a subscriber to a specific egress context based on the configuration of their profile or
system parameters. This provides a higher degree of deployment flexibility as it allows a wireless carrier to support
multiple services and facilitates seamless connections to multiple networks.
system parameters. This provides a higher degree of deployment flexibility as it allows a wireless carrier to support
multiple services and facilitates seamless connections to multiple networks.