OsmoSGSN » History » Version 21
laforge, 03/23/2018 12:46 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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7 | |||
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 | 20 | laforge | * the [[cellular-infrastructure:GSUP]] Interface/Protocol towards [[OsmoHLR:]] |
13 | 1 | laforge | |
14 | 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 |
15 | 19 | neels | [[OpenGGSN:OsmoGGSN]] project. |
16 | 1 | laforge | |
17 | 17 | laforge | h2. Position in a typical Osmocom network |
18 | 1 | laforge | |
19 | 19 | neels | For a more complete graph, see [[Cellular Infrastructure:Osmocom Network In The Box]] |
20 | |||
21 | 17 | laforge | {{graphviz_link() |
22 | digraph G { |
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23 | rankdir = LR; |
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24 | OsmoBTS -> OsmoBSC [label="Abis/IP"]; |
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25 | OsmoBSC -> OsmoMSC [label="3GPP AoIP"]; |
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26 | OsmoBTS -> OsmoPCU [label="pcu_sock"]; |
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27 | OsmoPCU -> OsmoSGSN [label="Gb/IP"]; |
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28 | OsmoMSC -> OsmoHLR [label="GSUP"]; |
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29 | OsmoSGSN -> OsmoHLR [label="GSUP"]; |
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30 | hNodeB -> OsmoHNBGW [label="Iuh"]; |
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31 | OsmoHNBGW -> OsmoMSC [label="IuCS"]; |
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32 | OsmoHNBGW -> OsmoSGSN [label="IuPS"]; |
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33 | OsmoSGSN -> OsmoGGSN [label="Gp"]; |
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34 | OsmoGGSN -> Internet [label="Gi"]; |
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35 | OsmoSGSN [color=red]; |
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36 | } |
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37 | }} |
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38 | 1 | laforge | |
39 | 7 | laforge | h2. Setup / Configuration |
40 | 1 | laforge | |
41 | 9 | laforge | For more information regarding the setup + configuration, refer to [[cellular-infrastructure:OpenBSC_GPRS]] |
42 | 20 | laforge | |
43 | 21 | laforge | {{include(cellular-infrastructure:MacroBinaryPackages)}} |
44 | 20 | laforge | |
45 | 21 | laforge | h2. User Manuals |
46 | 1 | laforge | |
47 | * User Manual: http://ftp.osmocom.org/docs/latest/osmosgsn-usermanual.pdf |
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48 | * VTY Reference: http://ftp.osmocom.org/docs/latest/osmosgsn-vty-reference.pdf |
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49 | |||
50 | 21 | laforge | h2. Source code |
51 | |||
52 | The source code is available from @git.osmocom.org@ (module @osmo-sgsn@). |
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53 | |||
54 | Public read-only access is available via |
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55 | <pre> |
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56 | git clone git://git.osmocom.org/osmo-sgsn.git |
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57 | </pre> |
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58 | |||
59 | You can browse it via cgit: https://git.osmocom.org/osmo-sgsn |
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60 | |||
61 | Contributions are welcome via [[Cellular Infrastructure:Gerrit]]. |
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62 | |||
63 | h2. Contact / Getting Help |
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64 | |||
65 | Contact us via the @osmocom-net-gprs@ mailing list, see [[Cellular Infrastructure:Mailing Lists]]. |
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66 | |||
67 | You can file issues (bugs / feature requests) using the redmine project you're currently viewing. |
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68 | |||
69 | 1 | laforge | h2. TODO list |
70 | |||
71 | For details see the Issue tracker above. Roughtly, the following areas are in need of attention: |
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72 | 18 | laforge | |
73 | * secondary PDP contexts |
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74 | * persistent storage of GMM and SM state |
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75 | * recovery from GGSN outages |
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76 | * SMS delivery via GPRS |
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77 | * network-initiated PDP context activation |