Руководство По Устранению Ошибки для Cisco Cisco Tunnel Terminating Gateway (TTG)
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ASN Paging Controller and Location Registry Overview
▀ Introduction
▄ Cisco ASR 5000 Series Access Service Network Gateway Administration Guide
OL-22953-01
Figure 48. Location Update Flow
A S N B S
A S N -G W /
L o c a l-P C
M S /S S
1
2
3
5
4
A S N -G W /P C /
A u th e n tic a to r/D P F
S e rv in g A S N
6
7
9
1 0
8
A n c h o r A S N
Table 36.
Location Update Procedure Flow Description
Step
Description
1
The MS initiates a secure Location Update procedure by sending a RNG-REQ message to Serving ASN BS, which
includes the Ranging Purpose Indication TLV set to indicate Idle Mode Location Update, the PC ID TLV which points to
the Anchor ASN Gateway acting as the Anchor PC function for the MS, and the HMAC/CMAC tuple.
includes the Ranging Purpose Indication TLV set to indicate Idle Mode Location Update, the PC ID TLV which points to
the Anchor ASN Gateway acting as the Anchor PC function for the MS, and the HMAC/CMAC tuple.
2
The serving ASN BS sends an R6 LU_Req message to the serving ASN Gateway and starts timer TR6_LU_Req. The
message may include the PG ID, Paging Offset, and Paging Cycle TLVs if the serving ASN BS proposes an update to these
parameters.
message may include the PG ID, Paging Offset, and Paging Cycle TLVs if the serving ASN BS proposes an update to these
parameters.
3
The Serving ASN Gateway (associated with the local Paging Controller) sends an R4 LU_Req message to the Anchor PC
(associated with Anchor ASN Gateway) and starts timer TR6_LU_Req. The message may include the PG ID, Paging
Offset, and Paging Cycle TLVs if the Serving ASN Gateway proposes an update to these parameters.Note: This message
may be relayed by several intermittent ASNs before reaching the Anchor PC (Anchor ASN Gateway).
(associated with Anchor ASN Gateway) and starts timer TR6_LU_Req. The message may include the PG ID, Paging
Offset, and Paging Cycle TLVs if the Serving ASN Gateway proposes an update to these parameters.Note: This message
may be relayed by several intermittent ASNs before reaching the Anchor PC (Anchor ASN Gateway).