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GPRS Core Network - Wikipedia, the free encyclopedia GGSNs and SGSNs (collectively known as GSNs) listen for GTP-C messages on UDP port 2123 and for GTP-U messages on port 2152. The GGSN is the node which carries out the role in GPRS equivalent to the Home Agent in Mobile IP. Between the SGSN and the external GGSN, there is the Border Gateway (which is a essentially a firewall). en.wikipedia.org /wiki/GPRS_Core_Network   (1217 words)

RFC 3314 (rfc3314) - Recommendations for IPv6 in Third Generation Partners   (Site not responding. Last check: 2007-11-05) The GGSN also advertises a single /64 prefix to the handset, and these two items are assembled into a single IPv6 address. So, the GGSN can send a single IPv6 address to the SGSN, to be used for billing purposes, etc. Instead of using the full IPv6 address to identify a PDP context, the IPv6 WG recommends that the SGSN be informed of each prefix that is currently assigned to a PDP context. In this way, the prefix is not assigned to the link between the GGSN and the mobile device (as in 1a), but it is assigned to the mobile device itself. www.faqs.org /rfcs/rfc3314.html   (5213 words)

Network Management In case of dynamic PDP address assignment, the GGSN is responsible for the allocation and for the activation/deactivation of the PDP addresses. The GGSN updates the location directory by using routing information, which is supplied by the SGSNs, about the location of a MS and routes the external data network protocol packet (after its encapsulation) over the GPRS backbone to the SGSN which is currently serving the MS. The GGSN decapsulates the packets and sends them out on the IP network, where different IP routing mechanisms are used to transfer the packets to the access router of the destination network. www2.rad.com /networks/2003/gprs/arch_mng.htm   (1762 words)

Roxen Community: RFC 3314 Recommendations for IPv6 in Third Generation Partnership Project (3GPP) Standards ...   (Site not responding. Last check: 2007-11-05) GGSN: A specialized router that functions as the gateway between the GPRS network and the external networks, e.g., Internet. GGSN chooses an interface identifier for the PDP Context and creates the link-local address. The GGSN could advertise one or more prefixes for the local link in standard IPv6 Router Advertisements, and IPv6 addresses could be assembled, as needed, by the IPv6 stack on the handset or laptop. community.roxen.com /developers/idocs/rfc/rfc3314.html   (4994 words)

[No title]   (Site not responding. Last check: 2007-11-05) The GGSN can be used as a gateway support node to the external networks also for other nodes than the SGSN support node, as is illustrated in Figure 1. The GGSN transmits packets between the mobile station MS and the external packet networks PDN on the basis on the activated packet data protocol context. If the GGSN receives data packets that are designated for the mobile station MS from the external networks PDN, the GGSN trans- mits the data packets in accordance with the active PDP context to the net- work VSwMI which transmits them further to the mobile station MS. www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/30030.010426&ELEMENT_SET=DECL   (4998 words)

SAMSUNG's Digital World - Core Network | GGSN   (Site not responding. Last check: 2007-11-05) The Samsung GGSN is the network element that provides the interface between the WCDMA network and external IP networks, such as the Internet and corporate intranet. GGSN equipment developed by Samsung Electronics which offer high expandability could easily be evolved into a functional IPv6 network and All-IP network in the future, a network provider could gradually evolve their networks while making optimum use of the initially established core network equipment Samsung GGSN has a mass storage capacity, capable of connecting 1 million PDP contexts from each Chassis simultaneously. www.samsung.com /Products/WCDMA/CoreNetwork/WCDMA_CoreNetwork_GGSN.htm   (326 words)

Motorola GSM Packet Core GGSN   (Site not responding. Last check: 2007-11-05) The GGSN is the logical point of Public Data Network (PDN) interconnection to a GPRS network supporting the Gi reference point. For a given PDP context, the MS is always anchored to one GGSN as it moves amongst different SGSN nodes. The GGSN directs mobile-terminated packets to the SGSN that is currently serving the MS, allowing the MS to move freely within the coverage area of its home or foreign network. www.motorola.com /content/0,,2170-4453-4788,00.html   (110 words)

Hemant Chaskar Rajeev Koodli Nokia Research Center Nokia Research Center Then, for example, an IP packet arriving at GGSN from the Internet is first parsed to identify the FEC to which it belongs, and hence, the LSP over which it is to be forwarded through the CN. GGSN attaches a label to this IP packet which then is used for forwarding (and label swapping) at the intermediate nodes in the CN. GGSN can use the parameters in these messages to create appropriate FEC mapping context and DiffServ packet classifier for the packets that would be using the secondary PDP context. www.isoc.org /isoc/conferences/inet/01/CD_proceedings/T56/MPLSDiff.htm   (3436 words)

RFC3314   (Site not responding. Last check: 2007-11-05) RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 generate any addresses, except for the single identifier/prefix combination assigned by the GGSN. RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 The GGSN only advertises a single /64 prefix, rather than a set of prefixes. RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 be kept in the GGSN. rfc.net /rfc3314.html   (5357 words)

[No title] GGSN will map outgoing from handset packets to the appropriate PDP context based on QOS and address. This will allow the GGSN as a router and permit the MS to have multiple address per PDP. Durand: Does this mean that two devices behind the mobile phone need to send their packets to the GGSN in order to communicate (i.e., they can't do it directly via the mobile phone). playground.sun.com /pub/ipng/html/minutes/ipng-meeting-may2001.txt   (5565 words)

Release Notes for GGSN 5.2 on the Catalyst 6000 / Cisco 7600 MWAM for Cisco IOS Software Release 12.3(14)YQ2  ... GGSN Release 5.2, Cisco IOS Release 12.3(14)YQ and later, supports both the standard MWAM 512 MB per processor memory option and the 1 GB per processor memory option. With this release of the Cisco GGSN software, after a PDP context is established, subsequent create PDP context requests are no longer treated as update requests (update of parameters such as QoS, SGSN, etc. on an existing PDP). Therefore, in GGSN Release 5.2, Cisco IOS Release 12.3(14)YQ2 and later, the gprs gtp create-request v1 update-existing-pdp global configuration command that configures the "create-as-update" behavior, is obsolete. www.exio.com /en/US/products/sw/iosswrel/ps5413/prod_release_note09186a00804cbe04.html   (6506 words)

ISS X-Force Database: nokia-ggsn-ip-dos(12221): Nokia GGSN IP packet denial of service   (Site not responding. Last check: 2007-11-05) Nokia's GGSN (Gateway GPRS Support Node) is the interface between the GPRS (General Packet Radio Service) network and external IP networks. GGSN release 1 is vulnerable to a denial of service attack. CVE-2003-0368: Nokia Gateway GPRS support node (GGSN) allows remote attackers to cause a denial of service (kernel panic) via a malformed IP packet with a 0xFF TCP option. www.iss.net /security_center/static/12221.php   (330 words)

OpenGGSN - Open Source GPRS Core Network. Home of the Linux GGSN   (Site not responding. Last check: 2007-11-05) Both the GGSN and SGSN Emulator are compliant to protocols which has been standardized by the Third Generation Partnership Project (3GPP). As shown in the diagram the interface between a GGSN and an SGSN is called Gn, whereas the interface between the GGSN and an external data network is called Gi. When a connection request is received the GGSN will allocate a dynamic IP address for the mobile station, and allow the mobile station to access the Gi interface. www.openggsn.org /features.html   (587 words)

Infosys - Infosys | Communication - Case Studies - Gateway GPRS Serving Node (GGSN) development The client had to deliver high-capacity Gateway GPRS Support Node (GGSN) functionality while enabling operators to provide a wide range of wireless data services for its customers including global communications carriers; regional, local, and wireless phone carriers; and corporations. The North American telecom giant needed a reliable offshore partner for developing a hot-standby for the existing GGSN platform and to provide level 2 customer support. Infosys partnered with the client to co-design, co-develop and test critical components of the GGSN product that is used as an interface between the GPRS wireless data network and Internet or other private networks. www.infosys.com /industries/communication/cases/gateway_gprs_serving_node.asp   (703 words)

Cisco: Service Provider: Mobile Wireless Cisco offers GGSN software as a Cisco IOS feature set, which initially utilizes the 7000 series routers platform and is designed for today's most mission-critical applications. Cisco GGSN offers exceptional reliability, availability, and serviceability to provide GSM operators the flexibility they need to meet the constantly changing requirements at the core and distribution points of their internetworks. Cisco's GGSN and data network components interoperate with GPRS Support Nodes (SGSN) that follow the GPRS standard defined by the ETSI (European Standards Body). www.cisco.com /warp/public/779/servpro/solutions/wireless_mobile/gprs.html   (280 words)

GSN LITE: Flextronics Software Systems’ Offering of New Generation of Fast and Data-Rich Multimedia Services The GGSN is primarily a router and in packet data networks, it routes packets to a GPRS mobile terminal. The GGSN supports dynamic IP addressing for subscribers to enable the operator to use and reuse IP addresses from a pool of IP addresses allocated to the PLMN/Network by using local pools configured at the GGSN. Routing: The GGSN routes the packets received from the SGSN to a default gateway, statically configured at the GGSN, and routes the packets received from an external PDN for a mobile to an appropriate SGSN serving the mobiles. www.hssworld.com /mobile/solutions/gsn_lite/features.htm   (903 words)

Juniper Networks :: Press Releases 2002 The new AXB 250 06 GGSN, developed by EJN Mobile IP with the working name J20, and exclusively sold by Ericsson, is based on the Juniper Networks M20 Internet router and Ericsson GGSN application. The new AXB GGSN is ready for a complete integration with Wind's convergent IP platform, already based upon Ericsson and Juniper Networks technology among others. The result is the first carrier-class GGSN capable of handling demanding high-speed data multimedia services such as streaming video, real-time gaming, videoconferencing and live application-sharing. www.juniper.net /company/presscenter/pr/2002/pr-020219.html   (696 words)

[No title]   (Site not responding. Last check: 2007-11-05) The flow shown in Figure 2 is explained as follows: 201 In an existing GPRS network, during a process of establishing a PDP context between a UE and a GGSN, the function of an RNC and an SGSN is to establish a connection bearer for the communication between the UE and the GGSN. The GGSN registers the address of the SGSN that requests for a service and sends a Registration Request message, in which not only includes an address of the GGSN but also includes the address of the SGSN registered in the GGSN and the address of the RNC registered in the SGSN, to a BM-SC. After receiving the response from the SGSNs registered in it, GGSN sends the associations between the RNCs, the SGSNs and itself to the BM-SC as a response to the session message. www.wipo.int /cgi-pct/guest/getbykey5?KEY=04/73272.040826&ELEMENT_SET=DECL   (2469 words)

Application Example: Gateway GPRS Support Node (GGSN) A gateway GPRS support node (GGSN) acts as an interface between the GPRS backbone network and the external packet data networks (radio network and the IP network). For this purpose, the GGSN stores the current SGSN address of the user and his or her profile in its location register. Packet-based Platforms: Bundled with the industry's broadest line of 10/100 and Gigabit Ethernet switches, comprehensive shelf management and high-density power supplies, these platforms give equipment manufacturers and system integrators the basis to go beyond five-nines availability while handling the high-performance computing requirements of next-generation, packet-based systems. www.pt.com /applications/applications_ggsn.html   (332 words)

NEC Global - Press Release The best solution for the mobile operator is to be equipped with a new type of packet core system capable of high-performance IP packet transmission enabling them to create a balance between their investment and profit. The new SGSN and GGSN can be effectively combined with such service networks to offer a total solution to 3G operators. The new SGSN and GGSN realize 1.5 Gbps throughput, that is 10 times larger packet transmission capability offering a variety of mobile internet services with 1/5 of the compact hardware size. www.nec.co.jp /press/en/0309/1001.html   (891 words)

[No title] The GGSN serves as an anchor-point for the GPRS mobility management. In all of the scenarios, the UE is part of a network where there is at least one router of the same IP version, i.e., GGSN, and it is connecting to a node in a different network. Thus, in cases where the UE is dual stack capable, and in the network there is a GGSN (or separate GGSNs) that supports both connections to IPv4 and IPv6 networks, it is possible to connect to both at the same time. www.isi.edu /in-notes/rfc3574.txt   (2138 words)

[Bugdev] Nokia GGSN (IP650 Based) DoS When the vulnerability is exploited the GGSN restarts. Thus, GGSN release 2 is not vulnerable, GGSN release 1 is. Nokia advices all the customers still running GGSN release level 1 to upgrade on GGSN release level 2. CAN-2003-0368 Nokia GGSN Kernel Panic @stake Vulnerability Reporting Policy: http://www.atstake.com/research/policy/ @stake Advisory Archive: http://www.atstake.com/research/advisories/ PGP Key: http://www.atstake.com/research/pgp_key.asc @stake is currently seeking application security experts to fill several consulting positions. www.avet.com.pl /pipermail/bugdev/2003-June/003898.html   (658 words)

GPRS System Architecture   (Site not responding. Last check: 2007-11-05) The gateway GPRS support node (GGSN) acts as interface between the GPRS backbone and the external packet data network (PDN). For this purpose the GGSN stores the current SGSN address of the user and his profile in its location register.The GGSN also performs the authentication and charging functions. A GGSN proved the interface to several SGSNs to the external PDN. www.it.iitb.ac.in /~satyajit/seminar/node15.html   (301 words)

Lucent - Lucent Gateway GPRS Support Node (GGSN) for Service Providers   (Site not responding. Last check: 2007-11-05) The Cisco GGSN, based upon the Cisco 7600 platform, is a single router platform that offers standard 3rd Generation Partnership Project (3GPP) UMTS/W-CDMA and GPRS functionalities. The GGSN is able to offer a high capacity solution of 1.2 million IP Packet Data Protocol (PDP) contexts as a stand-alone solution. The Cisco 7600 family of routers, which is the base platform for the GGSN, supports a variety of tunneling VPN protocols, including L2TP, MPLS, IPSec and GRE and provides the greatest flexibility in establishing the most appropriate connectivity and level of security for your customers. www.lucent.com /products/solution/0,,CTID+2019-STID+10488-SOID+1557-LOCL+1,00.html   (868 words)

Cisco GGSN Release 5.1 Command Reference, Cisco IOS Release 12.3(11)YJ  [Cisco IOS Software Releases 12.3 Special ... GGSN Commands: gprs charging cdr-aggregation-limit to gprs dfp max-weight GGSN Commands: gprs gtp create-request v1 update-existing-pdp to session idle-time Cisco GGSN Release 5.1 Command Reference, Cisco IOS Release 12.3(11)YJ Click the links on the left to view the individual chapters in HTML format. www.exio.com /en/US/products/sw/iosswrel/ps5413/products_command_reference_book09186a00803b4772.html   (112 words)

Light Reading - Test & Measurement - All Aboard the GGSN Test - Telecom News Analysis This project is intended as more than a simple overview of GGSN products, instead providing a comprehensive look at how each product performs in the world of 3G networks and applications. EANTC plans to test whether the GGSN can sustain performance during denial-of-service attacks from subscribers or the Internet, and assess the router's capability to switch to secondary resources under load, in case of a hardware failure. Billing: The content billing test is intended to test the ability of the GGSN and the content billing server to process billing information based on real-time traffic inspection at the application layer. www.lightreading.com /document.asp?doc_id=81026&WT.svl=news1_1   (957 words)

EJN Mobile IP - Ericsson Juniper Networks–EJN– J20 GGSN for GPRS and UMTS   (Site not responding. Last check: 2007-11-05) Ericsson Juniper Networks Mobile IP (EJN Mobile IP), develops a router-based, carrier-class GGSN product family sold and marketed exclusively by Ericsson as part of their 2.5G/3G mobile Total Solution. EJN Mobile IP delivers the J20 GGSN, sold as the Ericsson AXB 250 06, in Ericsson solutions. EJN Mobile IP is a joint venture corporation jointly held by Ericsson and Juniper Networks. www.ejnmobileip.com   (100 words)

Siemens Communications Lexicon - automatic baud rate detection (ABR) GGSN is part of the packet-oriented GPRS core network. From the viewpoint of an external IP network, the GGSN is a router for the IP addresses of all nodes that the GPRS network supports. To support this, the GGSN exchanges routing information with the external network. networks.siemens.com /communications/lexicon/3/f010653.htm   (118 words)

[No title] GGSN --+-- ------ ----------- ----------- ----------- (UE) Figure 1: Simplified GPRS Architecture Wasserman Informational [Page 7] RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 ------ It is assumed that 3GPP nodes will not Wasserman Informational [Page 12] RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 generate any addresses, except for the single identifier/prefix combination assigned by the GGSN. Wasserman Informational [Page 15] RFC 3314 Recommendations for IPv6 in 3GPP Standards September 2002 2.3.2 Prefix Information in the SGSN Currently, the 3GPP standards allow only one prefix and one identifier for each PDP context. www.ietf.org /rfc/rfc3314.txt   (5396 words)

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