Open5GS-Traces » History » Version 15
jolly, 01/29/2024 02:54 PM
1 | 1 | jolly | h1. Open5GS-Traces |
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2 | |||
3 | 7 | jolly | h1. !!!TBD!!! |
4 | 5 | jolly | |
5 | 8 | jolly | h2. Setup of this example |
6 | |||
7 | * Ericsson RBS 6402 (eNodeB) |
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8 | * Open5GS (4G network elements) |
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9 | * OsmoHLR with OsmoDia2GSUP (HSS) |
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10 | * OsmoMSC (SMS) |
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11 | |||
12 | h2. Idle |
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13 | 1 | jolly | |
14 | 10 | jolly | When all phones are Idle, one will see the following trace with Wireshark on the link between eNodeB (Ericsson RBS) and MME (Open5GS). |
15 | 1 | jolly | |
16 | 15 | jolly | p{border: solid 1px}. !wireshark_enb_idle.png! |
17 | 8 | jolly | |
18 | The eNodeB (IP 10.0.15.117) is connected to MME (IP 10.0.15.1) via SCTP. Also the eNodeB syncs its clock to NTP server (IP 10.0.15.1). |
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19 | |||
20 | 9 | jolly | The network 10.0.15.0/24 is the RAN network in this example. |
21 | |||
22 | h2. 4G Attachment |
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23 | |||
24 | 1 | jolly | A 4G phone is attached to the network, using SIM cards that is registered in the HSS. The APN name used is "internet". |
25 | 10 | jolly | |
26 | 13 | jolly | !wireshark_enb_attach.png! |
27 | 1 | jolly | |
28 | 12 | jolly | Lets go into detail: |
29 | |||
30 | h3. Attach request |
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31 | 1 | jolly | |
32 | 14 | jolly | !wireshark_enb_attach_attach_request.png! |
33 | 1 | jolly | |
34 | 14 | jolly | h3. ESM information request |
35 | |||
36 | !wireshark_enb_attach_ESM_infomation_request.png! |
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37 | |||
38 | h3. ESM information response |
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39 | |||
40 | !wireshark_enb_attach_ESM_infomation_response.png! |
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41 | |||
42 | h3. Attach accept |
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43 | |||
44 | !wireshark_enb_attach_attach_accept.png! |
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45 | |||
46 | h3. Attach complete |
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47 | |||
48 | !wireshark_enb_attach_attach_complete.png! |
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49 | |||
50 | |||
51 | 10 | jolly | h2. 4G Detachment |
52 | |||
53 | 1 | jolly | The 4G phone is turned off or the airplane mode is turned on. |
54 | 10 | jolly | |
55 | 1 | jolly | !wireshark_enb_detach.png! |
56 | 14 | jolly | |
57 | Lets go into detail: |
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58 | |||
59 | h.3 Detach Reqeust |
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60 | |||
61 | !wireshark_enb_detach_detach_request.png! |
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62 | |||
63 | h.3 UE context release |