OsmoSGSN » History » Version 18
laforge, 10/21/2017 06:22 PM
1 | 7 | laforge | {{>toc}} |
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2 | 1 | laforge | |
3 | 11 | laforge | h1. [[OsmoSGSN:]] |
4 | 7 | laforge | |
5 | 1 | laforge | |
6 | Serving GPRS Support Node (SGSN). As such it implements the GPRS Mobility Management (GMM) and SM (Session Management). |
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8 | 18 | laforge | The SGSN implements |
9 | * the Gb interface to the BSS's (like the [[OsmoPCU:]] or an ip.access [[OpenBSC:nanoBTS]]) |
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10 | * the Gp interface with its GTP protocol to one or more Gateway GPRS Support Node (GGSN) like [[OpenGGSN:OsmoGGSN]]. |
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11 | * the IuPS interface with its RANAP protocol to onre or more RNCs or HNB-GWs like [[OsmoHNBGW:]] |
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12 | 1 | laforge | |
13 | 16 | laforge | [[OsmoSGSN:]] is available from the http://git.osmocom.org/osmo-sgsn/ repository. In order to build it, you will need a libgtp installation from the |
14 | [[OpenGGSN:OsmoGGSN]] project. |
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15 | 1 | laforge | |
16 | 17 | laforge | h2. Position in a typical Osmocom network |
17 | |||
18 | {{graphviz_link() |
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19 | digraph G { |
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20 | rankdir = LR; |
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21 | OsmoBTS -> OsmoBSC [label="Abis/IP"]; |
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22 | OsmoBSC -> OsmoMSC [label="3GPP AoIP"]; |
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23 | OsmoBTS -> OsmoPCU [label="pcu_sock"]; |
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24 | OsmoPCU -> OsmoSGSN [label="Gb/IP"]; |
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25 | OsmoMSC -> OsmoHLR [label="GSUP"]; |
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26 | OsmoSGSN -> OsmoHLR [label="GSUP"]; |
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27 | hNodeB -> OsmoHNBGW [label="Iuh"]; |
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28 | OsmoHNBGW -> OsmoMSC [label="IuCS"]; |
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29 | OsmoHNBGW -> OsmoSGSN [label="IuPS"]; |
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30 | OsmoSGSN -> OsmoGGSN [label="Gp"]; |
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31 | OsmoGGSN -> Internet [label="Gi"]; |
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32 | OsmoSGSN [color=red]; |
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33 | } |
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34 | }} |
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35 | |||
36 | 1 | laforge | |
37 | 7 | laforge | h2. Setup / Configuration |
38 | 1 | laforge | |
39 | 9 | laforge | For more information regarding the setup + configuration, refer to [[cellular-infrastructure:OpenBSC_GPRS]] |
40 | 7 | laforge | |
41 | 12 | laforge | h2. Manuals |
42 | |||
43 | 1 | laforge | * User Manual: http://ftp.osmocom.org/docs/latest/osmosgsn-usermanual.pdf |
44 | * VTY Reference: http://ftp.osmocom.org/docs/latest/osmosgsn-vty-reference.pdf |
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45 | 12 | laforge | |
46 | h2. TODO list |
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47 | 7 | laforge | |
48 | 18 | laforge | For details see the Issue tracker above. Roughtly, the following areas are in need of attention: |
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50 | 1 | laforge | * secondary PDP contexts |
51 | * persistent storage of GMM and SM state |
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52 | * recovery from GGSN outages |
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53 | * SMS delivery via GPRS |
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54 | * network-initiated PDP context activation |
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55 | 18 | laforge | |
56 | h2. Contact |
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57 | |||
58 | * Contact us via the osmocom-net-gprs@ mailing list, see [[Cellular Infrastructure:Mailing Lists]]. |
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59 | * Contributions are welcome via [[Cellular Infrastructure:Gerrit]]. |
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60 | * Git repository browser at https://git.osmocom.org/osmo-sgsn |