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: |
| 49 | |||
| 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 |
