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diff --git a/OsmoGGSN/chapters/overview.adoc b/OsmoGGSN/chapters/overview.adoc deleted file mode 100644 index 632db5e..0000000 --- a/OsmoGGSN/chapters/overview.adoc +++ /dev/null @@ -1,145 +0,0 @@ -[[chapter_introduction]] -== Overview - -[[intro_overview]] -=== About OsmoGGSN - -OsmoGGSN is a Free / Open Source Software implementation of the GPRS -GGSN (Gateway GPRS support node) element in side the packet switched -core network of 2G and 3G cellular networks. - -The GGSN function is the tunnel endpoint on the core network side, -from where the external (IP) packet data network - -=== Software Components - -==== GTP Implementation (libgtp) - -The OsmoGGSN source code includes a shared library implementation of -the GTP protocol used on the GGSN-SGSN interface. This library -and associated header files are installed system-wide and are -available to other programs/applications. - -In fact, libgtp is what the OsmoSGSN also uses for its use of GTP. - -==== sgsnemu - -In order to test OsmoGGSN without running a SGSN and other elements -of a cellular network, there is a small command-line utility called -*sgsnemu* which is able to simulate the customary operations of a SGSN -towards the GGSN, such as a PDP Context Activation. - -*sgsnemu* can even be used for testing against other GGSNs, as the GTP -protocol is standardized across implementations. - -==== osmo-ggsn - -*osmo-ggsn* is the actual name of the OsmoGGSN executable program. It -implements the GGSN functionality. All parameters are set using the -configuration file, by default located in *./osmo-ggsn.cfg* - -==== systemd service file - -In *contrib/osmo-ggsn.service* you can find a sample service file for -OsmoGGSN which can be used with systemd. - -==== init script - -In *contrib/osmo-ggsn.init* you can find a sample init script to be used -on systems with classic init process. - -=== Limitations - -OsmoGGSN supports both GTP0 (GSM 09.60) and GTP1 (3GPP 29.060). In the -following tables the support of each individual message type is -detailed. The numbers before each feature indicates the relevant -section in the standard. - -==== GSM 09.60 (GTPv0) - -[options="header",cols="50%,15%,15%,15%,5%"] -|=== -| Feature | gtplib | osmo-ggsn | sgsnemu | notes -5+<|*7.4 Path Management Messages* -|7.4.1 Echo Request |Supported |Supported |Supported | -|7.4.2 Echo Response |Supported |Supported |Supported | -|7.4.3 Version Not Supported |Supported |Supported |Supported | -5+<| *7.5 Tunnel Management Messages* -|7.5.1 Create PDP Context Request|Supported |Supported |Supported | -|7.5.2 Create PDP Context Response|Supported |Supported |Supported | -|7.5.3 Update PDP Context Request|Supported |Supported |Not | -|7.5.4 Update PDP Context Response|Supported |Supported |Not | -|7.5.5 Delete PDP Context Request|Supported |Supported |Supported | -|7.5.6 Delete PDP Context Response|Supported |Supported |Supported | -|7.5.7 Create AA PDP Context Request|Unsupported |Unsupported |Unsupported | -|7.5.8 Create AA PDP Response|Unsupported |Unsupported |Unsupported | -|7.5.9 Delete AA PDP Context Request|Unsupported |Unsupported |Unsupported | -|7.5.10 Delete AA PDP Context Response|Unsupported |Unsupported |Unsupported | -|7.5.11 Error Indication |Supported |Supported |Supported | -|7.5.12 PDU Notification Request|Unsupported |Unsupported |Unsupported | -|7.5.13 PDU Notification Response|Unsupported |Unsupported |Unsupported | -|7.5.14 PDU Notification Reject Request|Unsupported |Unsupported |Unsupported | -|7.5.15 PDU Notification Reject Response|Unsupported |Unsupported |Unsupported | -5+<| *7.6 Location Management Messages* -|7.6.1 Send Routeing Information for GPRS Request|Unsupported |Unsupported |Not applicable | -|7.6.2 Send Routeing Information for GPRS Response|Unsupported |Unsupported |Not applicable | -|7.6.3 Failure Report Request|Unsupported |Unsupported |Not applicable | -|7.6.3 Failure Report Response|Unsupported |Unsupported |Not applicable | -|7.6.5 Note MS GPRS Present Request|Unsupported |Unsupported |Not applicable| -|7.6.6 Note MS GPRS Present Response|Unsupported |Unsupported |Not applicable| -5+<| *7.5 Mobility Management Messages* -|7.5.1 Identification Request|Unsupported |Not applicable|Not applicable| -|7.5.2 Identification Response|Unsupported |Not applicable|Not applicable | -|7.5.3 SGSN Context Request|Unsupported |Not applicable|Not applicable| -|7.5.4 SGSN Context Response|Unsupported |Not applicable|Not applicable| -|7.5.5 SGSN Context Acknowledge|Unsupported |Not applicable|Not applicable| -|=== - -==== 3GPP 29.060 (GTPv1) - -[options="header",cols="50%,15%,15%,15%,5%"] -|=== -|Feature |gtplib |osmo-ggsn |sgsnemu |notes -5+<|*7.2 Path Management Messages* -|7.2.1 Echo Request |Supported |Supported |Supported | -|7.2.2 Echo Response |Supported |Supported |Supported | -|7.2.3 Version Not Supported|Supported |Supported |Supported | -|7.2.4 Extension Headers Notification|Supported |Supported |Supported | -5+<|*7.3 Tunnel Management Messages* -|7.3.1 Create PDP Context Request|Supported |Supported |Supported |1 -|7.3.2 Create PDP Context Response|Supported |Supported |Supported | -|7.3.3 Update PDP Context Request|Supported |Supported |Not applicable|1 -|7.3.4 Update PDP Context Response|Supported |Supported |Not applicable| -|7.3.5 Delete PDP Context Request|Supported |Supported |Supported | -|7.3.6 Delete PDP Context Response|Supported |Supported |Supported | -|7.3.7 Error Indication |Supported |Supported |Supported | -|7.3.8 PDU Notification Request|Unsupported |Unsupported |Unsupported | -|7.3.9 PDU Notification Response|Unsupported |Unsupported |Unsupported | -|7.3.10 PDU Notification Reject Request|Unsupported |Unsupported |Unsupported | -|7.3.10 PDU Notification Reject Response|Unsupported |Unsupported |Unsupported | -5+<|*7.4 Location Management Messages* -|7.4.1 Send Routeing Information for GPRS Request|Unsupported |Unsupported |Not applicable | -|7.4.2 Send Routeing Information for GPRS Response|Unsupported |Unsupported |Not applicable | -|7.4.3 Failure Report Request|Unsupported |Unsupported |Not applicable| -|7.4.3 Failure Report Response|Unsupported |Unsupported |Not applicable| -|7.4.5 Note MS GPRS Present Request|Unsupported |Unsupported |Not applicable| -|7.4.6 Note MS GPRS Present Response|Unsupported |Unsupported |Not applicable| -5+<|*7.5 Mobility Management Messages* -|7.5.1 Identification Request|Unsupported |Not applicable|Not applicable| -|7.5.2 Identification Response|Unsupported |Not applicable |Not applicable| -|7.5.3 SGSN Context Request|Unsupported |Not applicable|Not applicable| -|7.5.4 SGSN Context Response|Unsupported |Not applicable |Not applicable| -|7.5.5 SGSN Context Acknowledge|Unsupported |Not applicable|Not applicable| -|7.5.6 Forward Relocation Request|Unsupported |Not applicable|Not applicable| -|7.5.7 Forward Relocation Response|Unsupported |Not applicable|Not applicable| -|7.5.8 Forward Relocation Complete|Unsupported |Not applicable|Not applicable| -|7.5.9 Relocation Cancel Request|Unsupported |Not applicable|Not applicable| -|7.5.10 Relocation Cancel Response|Unsupported |Not applicable|Not applicable| -|7.5.11 Forward Relocation Complete |Unsupported |Not applicable |Not applicable | -|7.5.12 Forward SRNS Context Acknowledge|Unsupported |Not applicable|Not applicable| -|7.5.13 Forward SRNS Context|Unsupported |Not applicable|Not applicable| -|=== - -Notes - -1) The "Secondary PDP Context Activation Procedure" is not supported. |