Asn Mobility Management - Cisco ASR 5000 series Product Overview

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▀ ASN Mobility Management

ASN Mobility Management

The Access Service Network Gateway (ASN Gateway) processes subscriber control and bearer data traffic, and

supports connection and mobility management across cell sites and inter-service provider network boundaries. An ASN

Gateway is a logical entity in the Access Service Network (ASN) of a WiMAX radio access network and interfaces

directly with base transceiver station or base station via an R6 GRE reference interface. An ASN Gateway performs

control plane functions, bearer plane routing or bridging functions, resident functions in the connectivity service

network, or a function in another ASN.

The ASN Gateway is placed at the edge of an ASN and is the link to the CSN. Each ASN Gateway can concentrate

traffic from multiple radio base stations. This reduces the number of devices to manage and minimizes connection set-

up latency by decreasing the number of call handovers in the network.

To support Mobile IP and/or Proxy Mobile IP data applications, you can configure the system to perform the role of the

ASN Gateway/foreign agent and/or the home agent within the connectivity service network (CSN) of your WiMAX

data network. When functioning as a home agent, the system can be located within your WiMAX network or in the

CSN of an external enterprise or ISP network. In either case, the ASN Gateway/foreign agent terminates the mobile

subscriber's call session and then routes the subscriber's data to and from the appropriate home agent.

▄ Cisco ASR 5000 Series Product Overview

Basic ASN Gateway Network

Acess Service Network (ASN)

Connectivity Service

Network (CSN)

ASN Gateway Overview