Cisco ASR 5000 series Product Overview page 193

ASN Gateway Overview
Figure 54.
MS/SS
1
14
Table 38. Controlled Inter-ASN Gateway Handover Procedure - Preparation Phase Description
Step Description
1 MS sends a MOB_MSHO-REQ message to the serving ASN BS.
2 Serving ASN BS sends a Handover Request message to the target ASN BS.
3 Target ASN BS sends a Context-Request message to the target non-anchor ASN Gateway for this MS.
4 Target non-anchor ASN Gateway forwards the Context-Request message to the anchor ASN Gateway.
5 Anchor ASN Gateway sends a Context-Report message to the target non-anchor ASN Gateway.
6 Target non-anchor ASN Gateway forwards the Context-Report message to the target ASN BS.
7 Target ASN BS sends a Path Pre-Registration Request message to the target non-anchor ASN Gateway. Pre-registration is
optional.
OL-22938-02
Controlled Inter-ASN Gateway Handover Procedure - Preparation Phase
Serving
ASN BS
DATA
Anchor
Target
ASN-GW ASN BS
2
12*
13
15
ASN Call Procedure Flows ▀
Non-Anchor
Target ASN -GW
3
4
5
6
7*
8*
9*
10*
11*
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