Project

General

Profile

OsmoSGSN » History » Version 17

laforge, 10/21/2017 06:15 PM

1 7 laforge
{{>toc}}
2 1 laforge
3 11 laforge
h1. [[OsmoSGSN:]]
4 7 laforge
5 14 neels
Contact us via the osmocom-net-gprs@ mailing list, see [[Cellular Infrastructure:Mailing Lists]].
6 14 neels
Contributions are welcome via [[Cellular Infrastructure:Gerrit]].
7 14 neels
Git repository browser at https://git.osmocom.org/osmo-sgsn
8 14 neels
9 1 laforge
Serving GPRS Support Node (SGSN).  As such it implements the GPRS Mobility Management (GMM) and SM (Session Management).
10 1 laforge
11 10 laforge
The SGSN connects via the Gb-Interface to the BSS (like the [[OsmoPCU:]] or an ip.access [[OpenBSC:nanoBTS]]), and it connects via the GTP protocol
12 16 laforge
to a Gateway GPRS Support Node (GGSN) like [[OpenGGSN:OsmoGGSN]].
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 16 laforge
[[OpenGGSN:OsmoGGSN]] project.  
16 1 laforge
17 17 laforge
h2. Position in a typical Osmocom network
18 17 laforge
19 17 laforge
{{graphviz_link()
20 17 laforge
digraph G {
21 17 laforge
    rankdir = LR;
22 17 laforge
    OsmoBTS -> OsmoBSC [label="Abis/IP"];
23 17 laforge
    OsmoBSC -> OsmoMSC [label="3GPP AoIP"];
24 17 laforge
    OsmoBTS -> OsmoPCU [label="pcu_sock"];
25 17 laforge
    OsmoPCU -> OsmoSGSN [label="Gb/IP"];
26 17 laforge
    OsmoMSC -> OsmoHLR [label="GSUP"];
27 17 laforge
    OsmoSGSN -> OsmoHLR [label="GSUP"];
28 17 laforge
    hNodeB -> OsmoHNBGW [label="Iuh"];
29 17 laforge
    OsmoHNBGW -> OsmoMSC [label="IuCS"];
30 17 laforge
    OsmoHNBGW -> OsmoSGSN [label="IuPS"];
31 17 laforge
    OsmoSGSN -> OsmoGGSN [label="Gp"];
32 17 laforge
    OsmoGGSN -> Internet [label="Gi"];
33 17 laforge
    OsmoSGSN [color=red];
34 17 laforge
}
35 17 laforge
}}
36 17 laforge
37 1 laforge
38 7 laforge
h2. Setup / Configuration
39 1 laforge
40 9 laforge
For more information regarding the setup + configuration, refer to [[cellular-infrastructure:OpenBSC_GPRS]]
41 7 laforge
42 12 laforge
h2. Manuals
43 12 laforge
44 12 laforge
* User Manual: http://ftp.osmocom.org/docs/latest/osmosgsn-usermanual.pdf
45 12 laforge
* VTY Reference: http://ftp.osmocom.org/docs/latest/osmosgsn-vty-reference.pdf
46 7 laforge
47 7 laforge
h2. TODO list
48 7 laforge
49 7 laforge
* secondary PDP contexts
50 7 laforge
* persistent storage of GMM and SM state
51 7 laforge
* recovery from GGSN outages
52 7 laforge
* SMS delivery via GPRS
53 7 laforge
* network-initiated PDP context activation