CN1725717A - Method for detecting interface connectivity between GTP support protecol terminal equipments - Google Patents
Method for detecting interface connectivity between GTP support protecol terminal equipments Download PDFInfo
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- CN1725717A CN1725717A CN 200410070977 CN200410070977A CN1725717A CN 1725717 A CN1725717 A CN 1725717A CN 200410070977 CN200410070977 CN 200410070977 CN 200410070977 A CN200410070977 A CN 200410070977A CN 1725717 A CN1725717 A CN 1725717A
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Abstract
A method for detecting connection property between devices at GTP protocol end includes setting up communication detection path between devices at said end , sending path management message by detection path , confirming that interface between device at said end is connected properly if answering message from opposite end can be received at preset time .
Description
Technical field
The present invention relates to network communications technology field, be specifically related to the method that GTP (GPRS tunnel protocol) protocol end equipment room interface connectivity is supported in a kind of detection.
Background technology
3-G (Generation Three mobile communication system) (3G) is with its advanced air interface technologies, the comprehensive IP packet switch of core net and control technology, make the technology of data communication industry and wireless communication industry obtain good fusion, make radio communication can satisfy the demand that data business (mainly being IP operation) is increased fast better.
WCDMA (Wideband Code Division Multiple Access (WCDMA)) is one of at present global three kinds of main 3G (Third Generation) Moblie systems.On system configuration and function, the WCDMA system can be divided into Radio Access Network (RAN) and core net (CN).Radio Access Network is used to handle all and the wireless function associated that comprises the management of Radio Resource, is referred to as UTRAN (Universal Mobile Telecommunications System land radio access web).CN is responsible for handling and the professional function relevant with application, and promptly all voice calls are connected with data in the WCDMA system, and the exchange of realization and external network and route.These two unit and subscriber terminal equipment have constituted whole UMTS (Universal Mobile Telecommunications System) system together.The interface definition of CN and UTRAN is the Iu interface, and the interface definition of UTRAN and UE (user terminal) is the Uu interface.
In the WCDMA network, the capital equipment of core network-packet switched domain is SGSN (Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node), as shown in Figure 1.RNC (radio network controller) management wireless side business.SGSN carries out functions such as mobile management, safety management, access control and Route Selection.GGSN is responsible for providing GPRS PLMN (GPRS public land mobile network) interface with outside PDN (Packet Data Network), and security mechanism (as fire compartment wall) between necessary net is provided.GGSN is WCDMA core net PS domain-functionalities nodes, links to each other by Gn/Gp interface SGSN, links to each other with the external packet data network by the Gi interface, and GGSN provides route and the encapsulation of packet between WCDMA mobile network and external data network.
The data service of mobile packet data Client-initiated inserts through SGSN equipment, mails to GGSN, mails to the external packet data net via GGSN at last.In this process, SGSN and GGSN equipment room be to realize alternately by both Gn/Gp interfaces, Gn is the interface between the interior GSN (GPRS Support Node) of same PLMN (public land mobile network), Gp is the interface between the GSN of different PLMN, GTP (GPRS Tunnel Protocol) agreement is deferred in communication between interface, in the GTP agreement, comprise Trail management function.Described path is meant the path of command transmitting and data between a pair of GSN, is made of IP address/UDP (user datagram protocol) port numbers of end points separately, can be divided into signaling paths and data path; The path agreement is meant the UDP/IP agreement that is used to carry the GTP agreement between GSN.
(in GPRS/core net, after the network of GSN equipment room was set up, whether the path that often needs to test GSN equipment room was unimpeded, and whether the GTP agreement of opposite equip. is moved normally at GPRS/WCDMA.Usually, utilize path management information to finish detection to GSN equipment room path.3GPP agreement 29060 regulations, path management information has three kinds: Echo Request (Echo request) message, Echo Response (Echo response) message, Version Not Supported (the GTP version is not supported) message is respectively described below:
1.Echo Request message: send on the path, whether the GSN that detects the opposite end is normal.EchoRequest message goes up " using the path " and sends." with " is meant to have at least a PDP Context (PDP context) to use this path to be connected to opposite end GSN for path.The transmission of Echo Request message should be not less than 60 seconds at interval.A GSN equipment should can receive Echo Request message at any time, and responds Echo Response message.
2.Echo Response message: this message is as the response of Echo Request message.
3.Version Not Supported message: this message only comprises the GTP head, indicates the GTP protocol version that the GTP entity on this UDP/IP address is supported.
Use the Echo Request message of GTP protocol path administrative messag and the connectivity that Echo Response message detects signaling paths and data path.Echo Request message mails to opposite end GSN, returns Echo Response message after opposite equip. is received, if local terminal GSN equipment can not receive response message within a certain period of time, thinks that then the path is disconnected.
According to 3GPP agreement 29060 regulations, have only as this path " using ", just can carry out the detection in path.That is to say to have only when existence on this path is no less than 1 PDP Context, just can carry out the detection in path.And detect periodically and carry out, be no less than 60 seconds at interval.If there is not PDP Context on the path, can think that this path free time or path are disconnected, can not send Echo Request message this moment, just can't use path detection message to know opposite end GSN information yet.But need often use at beginning initial stage or when carrying out network fault diagnosis the detection in path.In the prior art, if when not having " with " path between two GSN equipment, this detection then can't be carried out.
Summary of the invention
The purpose of this invention is to provide a kind of detection and support the method for GTP (GPRS tunnel protocol) protocol end equipment room interface connectivity, between two support GTP protocol end equipment, with the path time, can't not carry out the problem that the interface connectivity detects to solve in the prior art.
For this reason, the invention provides following technical scheme:
A kind of method of supporting GPRS tunnel protocol GTP endpoint device interface connectivity that detects comprises:
A, between described endpoint device, set up the communication check path;
B, by described communication check path transmit path administrative messag;
C, when receiving the receiveing the response of opposite end in the given time, think described endpoint device interface UNICOM.
Described steps A comprises:
The signaling paths sense command is set;
Activate described communication check path by sending described signaling paths sense command.
Described signaling paths sense command comprises: signaling paths detects the general packet wireless service tunnel protocol version number of instruction, local terminal equipment signaling face address, opposite equip. signaling plane address, the support of local terminal equipment.
Described steps A also comprises:
The data path sense command is set;
Activate described communication check path by sending described data path sense command.
Described data path sense command comprises: data path detects the general packet wireless service tunnel protocol version number of instruction, local terminal device data face address, opposite equip. data surface address, the support of local terminal equipment.
Described local terminal equipment signaling face address is identical or different IP addresses with described local terminal device data face address;
Described opposite equip. signaling plane address is identical or different IP addresses with described opposite equip. data surface address.
Described step B is specially:
By described communication check path transmission source address is that local terminal equipment signaling path or data path address, destination address are made as the Echo Request message that opposite equip. signaling paths or data path address, protocol version are made as the general packet wireless service tunnel protocol version number that local terminal supports.
Receiveing the response of described opposite end comprises:
The general packet wireless service tunnel protocol version number that opposite equip. is supported.
Described method also comprises: after detection is finished, delete described communication check path.
Described endpoint device comprises: GPRS support node apparatus, radio network controller.
By above technical scheme provided by the invention as can be seen, the present invention uses self-defining order to send Echo Response message, and it is more flexible to make that the GSN equipment room carries out the GTP path detection, and whether do not rely on has the user to activate on this path.Utilize the present invention can all not set up or idle path is detected, fully guarantee the unimpeded of network; When network is transferred survey or failure diagnosis, can save fault location time, better the normal operation of maintenance system.
Description of drawings
Fig. 1 is SGSN and the position view of GGSN equipment in the GPRS/WCDMA network;
Fig. 2 is the flow chart of the inventive method;
Fig. 3 is the present invention detects GSN equipment interface connectedness by signaling paths a flow chart;
Fig. 4 is the present invention detects GSN equipment interface connectedness by data path a flow chart.
Embodiment
Core of the present invention is the shortcoming at the prior art scheme, construct independently communication check path, design independent user command, initiate path detection by this user command, judge that by the response message that detects opposite equip. can opposite equip. set up GTP (GPRS Tunnel Protocol) path with this equipment; And, further detect the version of the agreement that opposite equip. supports, for accident analysis provides foundation by setting the type (V0 or V1) of Echo Request detect-message.
The present technique field personnel know, the GTP agreement is made up of signaling plane and data surface, the topmost function of signaling plane be in GPRS (GPRS) backbone network between the GSN node for MS user sets up GTP tunnel, finish user grouping data T-PDU tunnel transparent transmission between the GSN by transmission platform.Can have one or more path between every pair of GSN node, every paths may comprise one or more GTP tunnel again, promptly can realize the multiplexing of many GTP tunnels on a paths.
Path between the GSN equipment is UDP/IP (user datagram protocol/Internet protocol) path of carrying multichannel GTP tunnel, and the path is actually and does not rely on PDP Context and exist.Therefore, the present invention has constructed independent sense command, sends this order by specific detection path, to start the transmission of path management information.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Fig. 2 is the flow chart of the inventive method, may further comprise the steps:
Step 201: set and detect times N 3.
Step 202: supporting GTP protocol end equipment room to set up the communication check path.
Step 203: initiate path detection by user command, described user command can be set by agreement, and need make described support GTP protocol end equipment all support this order.
This sense command can comprise following information:
Detect the GTP version number of instruction, local terminal device network address, the opposite equip. network address, the support of local terminal equipment,
Certainly, if desired, can also add other information and spare fields.
Step 204: creating duration is the timer of T3.According to 3GPP agreement 29060 regulations, the transmission of EchoRequest message should be not less than 60 seconds at interval, therefore, can set T3=60 second.
Step 205: by communication check path transmit path administrative messag.
At this, can be according to 3GPP agreement 29060 regulations, sending Echo Request (Echo request) message, comprise the GTP protocol version that local terminal equipment is supported in this message, can be V0 and two kinds of versions of V1 of the GTP agreement of 3GPP (3rd Generation Partnership Project) regulation.
The source address of Echo Request message is the network address of local terminal equipment, and destination address is the network address of opposite equip..These network addresss have been pre-configured in the routing table of each endpoint device When building their networks.
Then, enter step 206: judge whether the T3 timer is overtime;
If the T3 timer is not overtime, then to step 207: receive receiveing the response of opposite equip..
For Echo Request message, receiveing the response of opposite end has two kinds: Echo Response (Echo response) message; Version Not Supported (the GTP version is not supported) message.In EchoResponse message, comprise the GTP protocol version that opposite equip. is supported.
If receive Echo Response message, then think and opposite equip. interface UNICOM, show that the opposite end is movable, and the operation of GTP agreement is normal;
If receive Version Not Supported message, then think and opposite equip. interface UNICOM, show that the opposite end is movable, but do not support the GTP protocol version of local terminal.
So far, detection finishes, and enters step 208:, from Echo Response message, obtain the GTP protocol version that opposite equip. is supported.
Then, to step 209: the communication check path that deletion is set up.
If the T3 timer expiry is then to step 210: detect number of times and subtract 1, show and finished one-time detection.
Then, enter step 211: judge and detect whether number of times is 0, that is to say and finished N3 detection whether;
If finished N3 detection, show that then at duration be N3*T3 does not also receive opposite equip. after the time response, at this moment, can think and opposite equip. between the path interrupt, enter step 212: display reminding information.
Then, enter step 209: the communication check path that deletion is set up.
If also do not finish N3 detection, then return step 204: create the timer that duration is T3 again.
Because the path can be divided into signaling plane path and data surface path, therefore provide order of signaling plane path detection and the order of data surface path detection respectively:
1. signaling plane path detection order:
TST SIGPATH＜local terminal GSN equipment signaling face address〉＜GSN equipment signaling face address, opposite end〉＜GTP version number that local terminal GSN equipment is supported 〉
2. data surface path detection order:
TST DATAPATH＜local terminal GSN device data face address〉＜GSN device data face address, opposite end〉＜GTP version number that local terminal GSN equipment is supported 〉
The implementation method of two kinds of orders is similar, with reference to the accompanying drawings the inventive method is elaborated.
Fig. 3 shows the flow process of the present invention by the method for signaling plane path detection order detection GSN equipment room Gn/Gp interface connectedness, may further comprise the steps:
Step 301: the signaling paths sense command is set, and described signaling paths sense command comprises: signaling paths detects the GTP protocol version of instruction, local terminal GSN equipment signaling face address, GSN equipment signaling face address, opposite end, the support of local terminal GSN equipment.
Step 302: send the signaling paths sense command and activate signaling plane detection path.
Step 303: detect path transmit path administrative messag by the signaling plane that activates, be specially:
Detecting the path transmission source address by signaling plane is that local terminal GSN signaling plane path address, destination address are GSN signaling paths face address, opposite end, comprises the Echo Request message of the GTP version number of local terminal support.
Step 304: judge whether receive receiveing the response of opposite end in the given time;
If receive and receive the response, then enter step 405: according to receiveing the response, obtain the information of opposite end GSN equipment, comprising: whether opposite end GSN equipment is movable; Normally whether the GTP agreement of opposite end GSN operation; Opposite end GSN supports the version of GTP agreement.
Receiveing the response of opposite end can have two kinds of situations: be respectively Echo Response message; Version NotSupported message.The information that comprises in these two kinds of message and the message is explained in front, do not repeat them here.
After obtaining the information of opposite end GSN equipment, at this moment, detect and finish, need enter step 306: the deletion signaling plane detects the path.
If do not receive and receive the response, can think that then the path is disconnected, at this moment, also need to enter step 306: the deletion signaling plane detects the path.
Fig. 4 shows the flow process of the present invention by the method for signaling plane path detection order detection GSN equipment room Gn/Gp interface connectedness, may further comprise the steps:
Step 401: the data path sense command is set, and described data path sense command comprises: data path detects the GTP protocol version of instruction, local terminal GSN device data face address, GSN device data face address, opposite end, the support of local terminal GSN equipment.
Step 402: send data path sense command activation data face and detect the path.
Step 403: detect path transmit path administrative messag by the data surface that activates, be specially:
Detecting the path transmission source address by data surface is that local terminal GSN signaling data face address, destination address are opposite end GSN data surface path address, comprises the Echo Request message of the GTP version number of local terminal support.
Step 404: judge whether receive receiveing the response of opposite end in the given time;
If receive and receive the response, then enter step 405: according to receiveing the response, obtain the information of opposite end GSN equipment, comprising: whether opposite end GSN equipment is movable; Normally whether the GTP agreement of opposite end GSN operation; Opposite end GSN supports the version of GTP agreement.
Receiveing the response of opposite end can have two kinds of situations: be respectively Echo Response message; Version NotSupported message.The information that comprises in these two kinds of message and the message is explained in front, do not repeat them here.
After obtaining the information of opposite end GSN equipment, at this moment, detect and finish, need enter step 406: the deleted data face detects the path.
If do not receive and receive the response, can think that then the path is disconnected, at this moment, also need to enter step 406: the deleted data face detects the path.
Above-mentioned by the signaling plane path with by in the process of data surface path detection GSN equipment room interface connectivity, when sending sense command and path management information, required local terminal GSN equipment signaling face address can be identical or different IP addresses with local terminal GSN device data face address; Equally, opposite end GSN equipment signaling face address can be identical or different IP addresses with GSN device data face address, opposite end.
Describe the inventive method by Fig. 3 and Fig. 4 above and between GPRS Support Node GSN (comprising GGSN and SGSN), carried out the process that the interface connectivity detects.The present technique field personnel know, in the GPRS/WCDMA network, has two GTP tunnels to be used for the carrying IP datagram to mobile device, or send from mobile device.One of them is between GGSN and SGSN, and another GTP tunnel is present between SGSN and the RNC.Changing RNC can make the tunnel from SGSN to RNC redirect to new RNC.When SGSN changes, the GTP tunnel between GGSN and the SGSN will move to new SGSN from old SGSN.The IP datagram of pointing to mobile device routes to GGSN, is sent to RNC through GTP tunnel then.RNC transmits IP datagram to the Node B that is positioned on the Iub interface (interface between RNC and the Node B), and Node B is forwarded to mobile device by wave point.Therefore, between GSN equipment and RNC, can finish the detection of port connectivity equally by the user command of setting.Detection mode and implementation procedure are similar to foregoing GSN equipment room port connectivity, are not described in detail at this.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (10)
1, a kind of method of supporting GPRS tunnel protocol GTP endpoint device interface connectivity that detects is characterized in that, comprising:
A, between described endpoint device, set up the communication check path;
B, by described communication check path transmit path administrative messag;
C, when receiving the receiveing the response of opposite end in the given time, think described endpoint device interface UNICOM.
2, method according to claim 1 is characterized in that, described steps A comprises:
The signaling paths sense command is set;
Activate described communication check path by sending described signaling paths sense command.
3, method according to claim 2, it is characterized in that described signaling paths sense command comprises: signaling paths detects the general packet wireless service tunnel protocol version number of instruction, local terminal equipment signaling face address, opposite equip. signaling plane address, the support of local terminal equipment.
4, according to claim 1 or 3 described methods, it is characterized in that described steps A also comprises:
The data path sense command is set;
Activate described communication check path by sending described data path sense command.
5, method according to claim 4, it is characterized in that described data path sense command comprises: data path detects the general packet wireless service tunnel protocol version number of instruction, local terminal device data face address, opposite equip. data surface address, the support of local terminal equipment.
6, method according to claim 5 is characterized in that,
Described local terminal equipment signaling face address is identical or different IP addresses with described local terminal device data face address;
Described opposite equip. signaling plane address is identical or different IP addresses with described opposite equip. data surface address.
7, method according to claim 5 is characterized in that, described step B is specially:
By described communication check path transmission source address is that local terminal equipment signaling path or data path address, destination address are made as the Echo Request message that opposite equip. signaling paths or data path address, protocol version are made as the general packet wireless service tunnel protocol version number that local terminal supports.
8, method according to claim 7 is characterized in that, receiveing the response of described opposite end comprises:
The general packet wireless service tunnel protocol version number that opposite equip. is supported.
9, method according to claim 1 is characterized in that, described method also comprises: after detection is finished, delete described communication check path.
10, method according to claim 1 is characterized in that, described endpoint device comprises: GPRS support node apparatus, radio network controller.
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| CNB2004100709777A CN100362815C (en) | 2004-07-21 | 2004-07-21 | Method for detecting interface connectivity between GTP support protecol terminal equipments |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101472312B (en) * | 2008-01-31 | 2010-07-07 | 华为技术有限公司 | Control method and communication system for releasing resource as well as relevant equipment |
| CN102026093A (en) * | 2009-09-17 | 2011-04-20 | 普天信息技术研究院有限公司 | Method and system for transmitting multimedia broadcast multicast service (MBMS) data |
| CN101594282B (en) * | 2008-05-29 | 2011-06-15 | 电信科学技术研究院 | Method, system and device for transmitting GTPv2 message |
| CN101784072B (en) * | 2009-01-16 | 2012-07-04 | 华为技术有限公司 | Method, device and system for detecting unobstructed property of data channels |
| CN104378249A (en) * | 2013-08-13 | 2015-02-25 | 中兴通讯股份有限公司 | Data link detection method, device and system, controller and gateway |
| WO2020114139A1 (en) * | 2018-12-04 | 2020-06-11 | 中兴通讯股份有限公司 | Local gtpu node information reporting method, apparatus, and storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU738855B2 (en) * | 1997-06-20 | 2001-09-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Data packet radio service with enhanced mobility management |
| KR20010049002A (en) * | 1999-11-30 | 2001-06-15 | 서평원 | Method of Testing Continuity in the ISUP Transit Call |
| KR100827136B1 (en) * | 2002-05-17 | 2008-05-02 | 삼성전자주식회사 | Method for signaling connection assignment in a mobile communication system |
| CN1200577C (en) * | 2002-05-28 | 2005-05-04 | 华为技术有限公司 | Method of inquiring transmitting route detection message in mobile communication system |
| CN1265593C (en) * | 2002-11-19 | 2006-07-19 | 华为技术有限公司 | Detecting method of reachability among IP network equipments and its application in public dialing network platform accessing backup |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101472312B (en) * | 2008-01-31 | 2010-07-07 | 华为技术有限公司 | Control method and communication system for releasing resource as well as relevant equipment |
| US8144665B2 (en) | 2008-01-31 | 2012-03-27 | Huawei Technologies Co., Ltd. | Resource release control method, communication system and device |
| US8325682B2 (en) | 2008-01-31 | 2012-12-04 | Huaweie Technologies Co., Ltd. | Resource release control method, communication system and device |
| US8830962B2 (en) | 2008-01-31 | 2014-09-09 | Huawei Technologies Co., Ltd. | Method, communication system and device for controlling resource release |
| CN101594282B (en) * | 2008-05-29 | 2011-06-15 | 电信科学技术研究院 | Method, system and device for transmitting GTPv2 message |
| CN101784072B (en) * | 2009-01-16 | 2012-07-04 | 华为技术有限公司 | Method, device and system for detecting unobstructed property of data channels |
| CN102026093A (en) * | 2009-09-17 | 2011-04-20 | 普天信息技术研究院有限公司 | Method and system for transmitting multimedia broadcast multicast service (MBMS) data |
| CN104378249A (en) * | 2013-08-13 | 2015-02-25 | 中兴通讯股份有限公司 | Data link detection method, device and system, controller and gateway |
| WO2020114139A1 (en) * | 2018-12-04 | 2020-06-11 | 中兴通讯股份有限公司 | Local gtpu node information reporting method, apparatus, and storage medium |
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