This MIB module extends the CISCO-GGSN-MIB. This MIB module manages the Gateway GPRS Support Node (GGSN) devices. A GGSN device provides interworking with external packet-data network of a particular GPRS service provider. It provides a combination of IP routing and GPRS specific functionality to support mobile users. A PDP context on the GGSN device contains the mobile users session information, during an active session. This information is used by the device to control the session. An active PDP context is created when a mobile station's service request is authenticated and served by the GGSN device. Acronyms and terms: APN Access Point Name CDR Call Detail Record COA Change of Authorization CSG2 Content Services Gateway (2nd Generation) DT Direct Tunnel DFP Dynamic Feedback Protocol GGSN Gateway GPRS Support Node GPRS General Packet Radio Service GTP GPRS Tunneling Protocol IE Information Element IMEI International Mobile Equipment Identification IMSI International Mobile Subscriber Identification MCC Mobile Country Code MNC Mobile Network Code MS Mobile Station MSISDN Mobile Station ISDN number PDP Packet Data Protocol PDN Packet Data Network PPP Point-to-Point Protocol RNC Radio Network Controller SGSN Serving GPRS Support Node REFERENCE [1] GSM 03.60: Digital cellular telecommunications system (Phase 2+); General Packet Radio Service (GPRS); Service description; Stage 2. V7.1.0 [2] GSM 09.60: Digital cellular telecommunication system (Phase 2+); General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across Gn and Gp Interface. V7.3.0 [3] 3GPP; Technical Specification Group Services and System Aspects; QoS Concept and Architecture. 3G TS 23.107 v3.2.0. [4] 3GPP; Technical Specification Group Core Network; General Packet Radio Service(GPRS); GPRS Tunnelling Protocol (GTP) across Gn and Gp Interface (Release 7). 3G TS 29.060 v7.5.1. [5] 3GPP: Technical Specification Group Core Network; Policy control over Go interface (Release 5). 3GPP TS 29.207 V5.2.0 [6] 3GPP: Technical Specification Group Services and System Aspects; General Packet Radio Service (GPRS); Service Description (Release 7) 3GPP TS 23.060 V7.4.0 [7] 3GPP: Technical Specification Group Services and System Aspects; One Tunnel Functional description; (Release 7) 3GPP TR 23.809 V1.0.0