Cisco ASR 5000 Series User Manual

ASN Gateway Overview
ASN Call Procedure Flows ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
Step
Description
7
ASN Gateway/FA exchanges NetExit_MS_State_Change_Req and NetExit_MS_State_Change_Rsp messages with the
anchor accounting client, anchor authenticator, and MIP client to delete MS contexts.
8
ASN Gateway sends Accounting-Stop-Request (Release Indication) message to H-AAA.
9
AAA replies with Accounting-Stop-Response message to ASN Gateway.
10
ASN Gateway/FA replies with Path_Dereg_Response message to ASN BS.
11
ASN BS sends R6 Path_Dereg_Ack to the ASN Gateway and related entities releases the retained MS context and the
assigned data path resource for the MS.
Intra-ASN Gateway Handover
This section describes the handover procedure between two ASN BSs connected to one ASN Gateway. The ASN
Gateway supports following types of handover:
Intra-anchor ASN Gateway Uncontrolled Handover
Intra Non-anchor ASN Gateway Uncontrolled Handover
Intra-anchor ASN Gateway Controlled Handover
Intra Non-anchor ASN Gateway Controlled Handover
Details regarding controlled and uncontrolled handovers for the anchor ASN gateways are provided below.
Intra-anchor ASN Gateway Uncontrolled Handover
This section describes the procedure for an uncontrolled intra-anchor ASN Gateway handover for a WiMAX Subscriber
MS.
The following figure provides a high-level view of the steps involved in an intra-anchor ASN Gateway uncontrolled
handover of an SS/MS. The following table explains each step in detail.

Cisco ASR 5000 Series Specifications

General

Brand	Cisco
Model	ASR 5000 Series
Category	Network Router
Language	English