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Which eNodeB is currently serving the UE?
The UE is currently served by eNodeB 10.10.2.4.
What is the value of the S1U SGW TEID?
The S1U SGW TEID value is 0x400225.
3. Two minutes after the attachment, the tester will trigger an S1 handover for the UE.
On the SGW, quickly display the detailed bearer infomation to verify the establishment of the
indirect tunnel.
SGW# show mobile-gateway serving bearer-context imsi 226041000000001 detail
===============================================================================
Bearer context detail
===============================================================================
IMSI : 226041000000001
APN : ipd.alcatel-lucent.com
Bearer Id : 5 Bearer type : Default
Up Time : 0d 00:02:02
QCI/ARP : 9/1
QoS UL MBR : 0 Kbps QoS DL MBR : 0 Kbps
QoS UL GBR : 0 Kbps QoS DL GBR : 0 Kbps
S5 PGW Data TEID : 0x400225 S5 SGW Data TEID : 0x400205
S5 PGW Data addr : 10.10.7.2
S5 SGW Data addr : 10.10.7.1
S1U eNodeB TEID : 0x21 S1U SGW TEID : 0x400225
S1U eNodeB addr : 10.10.2.4
S1U SGW address : 72.22.24.163
Indirect Rem TEID: 0x37
Indirect Tnl Rem addr : 10.10.2.5
Indirect Lcl TEID: 0x400215
Indirect Tnl Lcl addr : 72.22.24.163
S5 UL packets : 3 S5 UL bytes : 354
S1U DL packets : 4 S1U DL bytes : 399
S11 QoS Modify : 0
-------------------------------------------------------------------------------
Number of bearer contexts : 1
What is the remote address of the indirect tunnel?
The remote address of the indirect tunnel is 10.10.2.5, the address of the target eNodeB.
What is the local address of the indirect tunnel?
The local address of the indirect tunnel is 72.22.24.163, the system address of the SGW.
4. On the SGW, display the detailed bearer infomation to verify the state after the handover is
complete.
SGW# show mobile-gateway serving bearer-context imsi 226041000000001 detail
===============================================================================
Bearer context detail
===============================================================================
IMSI : 226041000000001
APN : ipd.alcatel-lucent.com
Bearer Id : 5 Bearer type : Default
Up Time : 0d 00:04:33
QCI/ARP : 9/1
QoS UL MBR : 0 Kbps QoS DL MBR : 0 Kbps
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QoS UL GBR : 0 Kbps QoS DL GBR : 0 Kbps
S5 PGW Data TEID : 0x400225 S5 SGW Data TEID : 0x400205
S5 PGW Data addr : 10.10.7.2
S5 SGW Data addr : 10.10.7.1
S1U eNodeB TEID : 0x21 S1U SGW TEID : 0x400225
S1U eNodeB addr : 10.10.2.4
S1U SGW address : 72.22.24.163
S5 UL packets : 6 S5 UL bytes : 708
S1U DL packets : 8 S1U DL bytes : 798
S11 QoS Modify : 0
-------------------------------------------------------------------------------
Number of bearer contexts : 1
Which eNodeB is now serving the UE?
The eNodeB 10.10.2.5 is now serving the UE. (TBD Mira PTS raised)
Did the S1U SGW TEID value change?
No, the S1U SGW TEID value remains the same.
5. On the SGW, display the detailed UE infomation.
SGW# show mobile-gateway serving ue-context imsi 226041000000001 detail
===============================================================================
UE context detail
===============================================================================
IMSI : 226041000000001 State : ACTIVE
MEI : 999900000000010 MSISDN : 0040700000001
Network MCC : 226 Network MNC : 10
Tracking area id : 0x1011 Cell Id : 0x1
NAI : 0226041000000001@epc.mnc004.mcc226.3gppnetwork.org
GW/Group/Card : 1/1/2 RAT : EUTRAN
PDN contexts : 1 Bearers : 1
S11 MME ctrl TEID: 0x325ac1 S11 SGW ctrl TEID: 0x400200
S11 MME ctrl addr: 10.10.2.2
S11 SGW ctrl addr: 10.10.2.1
Charging SGW address : 72.22.24.163
Inter ENB X2 HO : 0 Inter ENB S1 HO : 1
S1 release procs : 0 Paging Attempts : 0
UE init svc req : 0
-------------------------------------------------------------------------------
Number of UEs : 1
Which counter is incremented?
The  Inter ENB S1 HO counter is incremented to indicate that an S1 handover has been
performed for the UE.
6. On the SGW, verify the messages sent over the S11 interface.
SGW# show mobile-gateway serving ref-point-stats s11
===============================================================================
Serving gateway S11 reference point statistics
===============================================================================
Peer address : 10.10.2.2
Router : Base
Port : 2123
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Create session requests : 1 Create session responses : 1
Delete session requests : 0 Delete session responses : 0
Create bearer requests : 0 Create bearer responses : 0
Delete bearer requests : 0 Delete bearer responses : 0
Update bearer requests : 0 Update bearer responses : 0
Modify bearer requests : 2 Modify bearer responses : 2
Release access bearers req : 0 Release access bearers rsp : 0
Create indirect tunnel req : 1 Create indirect tunnel rsp : 1
Delete indirect tunnel req : 1 Delete indirect tunnel rsp : 1
Downlink notifications Tx : 0 Downlink acks Rx : 0
DL fail notifications Rx : 0 Missing mand IE pkts Rx : 0
Malformed packets Rx : 0 Unknown message pkts Rx : 0
Modify bearer commands : 0 Modify bearer fail ind : 0
Delete bearer commands : 0 Delete bearer fail ind : 0
Bearer resource commands : 0 Bearer resource fail ind : 0
-------------------------------------------------------------------------------
Number of peer instances : 2
Which GTP messages are exchanged?
The  Create indirect tunnel ,  Modify bearer and  Delete indirect tunnel messages are
exchanged over the S11 interface during an S1 handover.
7. On the SGW, verify the EPC procedures being performed.
SGW# show mobile-gateway serving call-flow-stats
===============================================================================
Serving gateway call flow statistics
===============================================================================
Chassis/Card : 1/2 Gateway : 1
Attach procedures : 1 Attach failures : 0
Detach procedures : 0 Detach failures : 0
UE init service req : 0 UE init svc req failures : 0
S1 release procedures : 0 S1 release failures : 0
Inter SGW X2 handovers : 0 Inter SGW X2 HO fails : 0
UE init ded bearer Activatn: 0 UE init ded bearer Act fail: 0 [ Pobierz całość w formacie PDF ]