Basic lte architecture video eutran, enodeb, epc, sgw, pgw, mme, hss, pdn by telcoma global duration. The tunnel endpoint id teid which is present in the gtp header indicates which tunnel a particular tpdu belongs to. In 3gpp architectures, gtp and proxy mobile ipv6 based interfaces are specified on various interface points gtp can be decomposed into separate protocols, gtpc, gtpu and gtp. Encapsulation and tunneling ipinip encapsulation received ip packet is encapsulated in a new ip packet with a new header. Gprs tunneling protocol v2 support generalpacketradioservice gprstunnelingprotocolversion2gtpv2isintroducedbythe3rd generationpartnershipproject3gpptechnicalspecificationts29. Gprs tunneling protocol gtp is a group of protocols to send and receive data over cellular phone networks. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Sgsn serving gprs support node teid tunnel endpoint identifier udp user datagram protocol 3 general the present document defines the gprs tunnelling protocol gtp specific to the network with the glr, i. List of standards for release 3, 4 and 5, respectively. Destination careofaddress source address of home agent protocol number ipinip.
Gtp is used to establish a gtp tunnel, for user equipment, between a serving gateway sgw and packet data network gateway pgw, and an sgw and mobility management entity mme. Gprs architecture uses a radiopacket technique to transfer user data packets in an efficient way between gsm mobile stations and external data networks. Gprs tunneling protocol gtp in lte all about wired and. The gprs tunneling protocol for the user plane gtpu supports multiplexing of the traffic from different pdu sessions by tunneling user data over n3 interface i. Collection of documentations and specifications for communication protocols between various gps tracking devices and gps tracking server. Gprs tunnelling protocol analytics memo 08dec2015 sakura internet research center. Fortioscarrier upgrade license faced with the explosive growth of smart personal devices, iot sensors and applications, mobile carriers and mobile virtual network operators. In order to multiplex multiple users onto the same transport bearer portip address, teids. Gtp is an ipbased protocol that carries signaling and user data with the gprs core network.
Gprs um interface rlc protocol and mac protocol is in charge of all radio related control functions on the air interface pcu and ms llc protocol is in charge of transmission between sgsn and ms delivery of data units to the higher layer in the correct sequence sndcp sub network dependent convergence protocol protocol is. Figure 83 illustrates a basic representation of the gprs architecture. Gprs tunneling protocol simple english wikipedia, the. The gprs tunneling protocol gtp is the tunneling protocol defined by the 3gpp standards to carry general packet radio service gprs within 3g4g networks. Gtp can be decomposed into separate protocols, gtpc, gtpu and gtp. Umts system architecture and protocol architecture overview on overall system architecture. The gprs tunneling protocol gtp allows multiprotocol packets to be tunneled through a gprs backbone. Introduces key concepts of gprs tunneling protocol gtp, both the control part gtpc and userplane part gtpu. A scheme for the packet data transmission within mobile networks including information on protocols 4. Figure 27 shows the gprs protocol stack and endtoend message flows from the ms to the ggsn. Since its design in the late 1990s, it was put to deploy on a large scale, and solid experience has been gathered. Gprs tunneling protocol v2 support generalpacketradioservice gprs tunnelingprotocolversion2gtpv2isintroducedbythe3rd generationpartnershipproject3gpptechnicalspecificationts29. Gprs tunnelling protocol user plane gtpu 4g 5g world.
Gtpv1u is used with udp user datagram protocol and ipv4ipv6 as supporting layers. General packet radio service gprs tunneling protocol version 2 gtpv2, also known as evolved packet servicesgtp or egtp, is modified and enhanced from the gprs tunneling protocol used in 2g and 3g mobile networks. It was designed in late 1990s, it was put to deploy on a large scale, and solid experience has been gathered. Cisco asr 5500 system architecture evolution gateway gprs. Gprs tunneling protocol gtp gtp protocol is designed for tunneling and encapsulation of. It is used to encapsulate user data when passing through core network and also carries bearer specific signalling traffic between various core network entities. Gprs tunneling protocol is an ipudp based protocol used in gsm, umts and lte networks. Gprs tunneling protocol gtp gtp protocol is designed for tunneling and enclosure of data units and control messages in gprs. Protocol sm gprs tunneling protocol pointtopoint protocol involved network nodes sm serving gprs support node and gateway packet data serving node gprs support node.
Gprs tunneling protocol gtp introduces key concepts of gprs tunneling protocol gtp, both the control part gtpc and userplane part gtpu. Explain how the new tunneling protocol could affect the performance of normal applications such as voice communication. Gtp is also expected to be used widely in 5g networks. Senior researcher naoto matsumoto slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Gprs tunneling protocol is an important ipudp based protocol used in gsm, umts and lte core networks. You can easily clear job interviews and college exams with these objective questions. Lte s6as6d interface description 9106857001 revision a 10 2.
The vulnerability is due to improper input validation of gprs tunneling protocol packet headers. Gtpc is used within the gprs core network for signaling between the gateway gprs support nodes. Gtpv2 has two flavors, a control plane protocol gtpv2c and a user plane protocol gtpv2u. Gprs tunneling protocol gtp free download as powerpoint presentation.
Gprs tunneling protocol gtp gtp protocol is designed for tunneling and encapsulation of data units and control messages in gprs. The protocol between the sgsn and ggsn using the gn interface is gtp. Session creation, modification and path management concepts are covered. Because it understands the stateful nature of this protocol, the gtp correlation feature can match and pass all of an identified subscribers control and data sessions to the. Gtp protocol gtp protocol is used to send the traffic within ps core and grx.
Umtsuniversal mobile telecommuncation system, lte3gpp long term evolution, gsmglobal system for mobile communications. This protocol has several advantages which will be discussed later. Gprs tunneling protocol gtp the overview page for gtp content including navigation links for everything about gtp. Gprs tunnelling protocol user plane gtpu gtpu protocol is used over s1u, x2, s4, s5 and s8 interfaces of the evolved packet system eps. It involves allowing private network communications to be sent across a public network such as the internet through a process called encapsulation because tunneling involves repackaging the traffic data into a different form, perhaps with encryption as. This short article about technology can be made longer. Universal mobile telecommunications system umts 3gpp long term evolution lte global system for mobile communications gsm gtp allows gsm customers to. A vulnerability in the general packet radio service gprs tunneling protocol ingress packet handler of cisco asr 5500 system architecture evolution sae gateways could allow an unauthenticated, remote attacker to cause a partial denial of service dos condition on an affected device. This is a tunneling protocol, which runs over udp and utilizes port 2123 for man. In 3gpp architectures, gtp and proxy mobile ipv6 based interfaces are specified on various interface points. Gtp allows gsm customers to travel while staying connected to the internet. Mobile network operators use the gprs tunneling protocol gtp on various interfaces in roaming, radio access network ran, and cellular iot ciot deployments and within the packet core in 3g and 4g networks.
Gprs tunneling protocol gtp technical documentation. Gprs tunneling protocol gtp is a group of ipbased communications protocols used to carry general packet radio service gprs within gsm, umts and lte networks. Gtpv1u is used to tunnel user plane data between different network nodes e. The contents of the present document are subject to continuing work within the. Gtp for evolved 3gpp system is available in two variants, control and user plane. Mobile network operators use the gprs tunneling protocol gtp on various interfaces in roaming and radio access network ran deployments and within the packet core in 3g and 4g networks. Gtpv2 is primarily used for control signalling between serving gateway sgw. I had been using seagull for the testing diameter and radius protocols. Gtp allows mobile subscribers to use their phones user equipment to maintain a connection to a packet data network pdn for internet access while on the move. Explain the tunneling protocol included in gprs system. In computer networks, a tunneling protocol is a communications protocol that allows for the movement of data from one network to another. Umts gprs tunneling protocol in umts tutorial 20 april.
There are various systems with distinct functionalities. Gtpu tunnels are used to carry encapsulated tpdus and signalling messages between a given pair of gtpu tunnel endpoints. Gprs tunneling protocol gtp is a group of ipbased communications protocols used to carry general packet radio service gprs within gsm, umts, and lte networks. The pdu session type can be ipv6 or ethernet for transporting ip packets or ethernet frames. Tunneling transfer of encapsulated data units within and between the plmns from. Gprs tunneling protocol gtp is an internet protocol ip based protocol suite used to carry general packet radio service gprs within the following networks. Gtp gprs tunneling protocol hi all, i am new to this mailing list, and has joined it, in a hope that i will be able to contribute.