CN101400045A - Method, system for forwarding packet and anchor point device - Google Patents

Method, system for forwarding packet and anchor point device Download PDF

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Publication number
CN101400045A
CN101400045A CNA2007101623940A CN200710162394A CN101400045A CN 101400045 A CN101400045 A CN 101400045A CN A2007101623940 A CNA2007101623940 A CN A2007101623940A CN 200710162394 A CN200710162394 A CN 200710162394A CN 101400045 A CN101400045 A CN 101400045A
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bce
pmip
mip
anchor point
point device
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CN100596242C (en
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严为
叶成平
黄志钢
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN200710162394A priority Critical patent/CN100596242C/en
Priority to PCT/CN2008/072341 priority patent/WO2009043260A1/en
Publication of CN101400045A publication Critical patent/CN101400045A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

The invention discloses a method and a system for establishing MIP-BCE and PMIP-BCE shared index, and a message forwarding method, system and anchor point equipment, belonging to network communication field. The method for establishing MIP-BCE and PMIP-BCE shared index comprise: acquiring HoA, establishing MIP-BCE and PMIP-BCE shared index containing HoA, HoA acting as index. The system for establishing MIP-BCE and PMIP-BCE shared index comprises MAG and anchor point equipment. The forwarding method comprise: confirming from MAG and MN simultaneously or orderly if the MIP-BCE or PMIP-BCE can be deleted, deleting corresponding BCE according to result, then forwarding message. The forwarding system comprises anchor point equipment, MAG and MN. The anchor point equipment comprises receiving module, transmitting module, deleting module and forwarding module, or receiving module, judging module, a first forwarding module and a second forwarding module. The invention correlates MIP-BCE and PMIP-BCE of same MN in anchor point equipment, promotes message forwarding success ratio.

Description

The method that E-Packets, system and anchor point device
Technical field
The present invention relates to network communication field, particularly a kind of method and system of setting up MIP-BCE and the common index of PMIP-BCE, and a kind of method that E-Packets, system and anchor point device.
Background technology
MIPv6 (Mobile Internet Protocol version 6, mobile internet protocol edition six) mainly solved as MN (Mobile Node, when position mobile node) and address change, the problem that still can keep proper communication between the terminal, promptly address modification does not influence the upper strata connection.The MIPv6 operation principle comprises: when MN is connected on the home link, take the mode the same with router with other fixed host computer to work; Whether MN oneself has roamed on the foreign link by the neighbor discovery mechanisms detection; When if MN finds oneself to have moved on the foreign link, on the basis of the RA that receives (Router Advertisement, router advertisement) information, by the Care-of Address on the relative address configuration mode acquisition foreign link; MN is sent to HA (Home Agent, home agent) with the Care-of Address of oneself by BU (Binding Update, Binding Update) message, and HA sets up the banding cache clauses and subclauses (being the binding of home address and the Care-of Address of MN) about MN; Under the prerequisite that guarantees fail safe, MN sends BU message to CN (Correspondent Node, correspondent node), and CN sets up the BCE (Binding Cache Entry, banding cache clauses and subclauses) about MN; When CN did not know the Care-of Address of MN, the HoA (Home Address, home address) by MN sent to packet on the home network of MN, and the HA of MN will be truncated to these packets then, utilize tunneling mechanism that these packets are transmitted to MN again; When MN receives the packet that HA transmits, own Care-of Address is notified to CN, then CN is later can directly send to MN with packet according to this Care-of Address, and no longer needs to transmit by HA; When CN knows the Care-of Address of MN, then utilize the route header of IPv6 directly to send packet to MN.
PMIPv6 (Proxy Mobile Internet Protocol version 6, act on behalf of mobile internet protocol edition six) be a kind of mobility management protocol of side Network Based, it need not MN and relates to the required signaling of mobile management, but replaces MN to carry out signaling and mobile management by the agency in the network.Each MN that in the PMIPv6 territory, roams, discern by an identifier, as NAI (Network Access Identifier, network access Identifier), and use identifier can also obtain the strategy file of MN from policy library, comprised the parameter that pre-configured mobile service characteristic and other relevant parameter (as the address configuration pattern of the address of local mobile anchor, permission, roaming strategy etc.) and other essential being used to provide mobility service in the strategy file.In case MN enters the PMIPv6 network and carries out access authentication, network will guarantee that MN always can obtain its HoA by any address configuration process at its home network with on access link always.(the Mobile Access Gateway of MAG in PMIPv6, Mobile Access Gateway) be to represent MN to carry out the entity of the relevant signaling of mobility, to LMA (Local Mobility Anchor, local mobile anchor), MAG is special element in the network, and on behalf of MN, it send the PMIPv6 signaling message.LMA receives any message that is sent to MN as the topological anchor point of MN local prefix, and sends to MAG by the LMA tunnel, and MAG receives the back decapsulation, is transmitted to the MN on the access link then.
After MN inserts on the MAG link, MN will carry out access authentication procedure to network by identifier.Behind the success identity, MAG obtains the strategy file of MN from policy library, and obtains essential information, thereby can imitate the home network of MN on access link.MAG then begins to send RA on access link, the HP (Home Prefix, local prefix) of announcement MN.After MN receives RA, based on the configuration mode that allows on the link, use is had the address of state or stateless configuration interface, MN obtains its HoA.For upgrading the current location that LMA goes up MN, MAG sends the LMA of a PBU (Proxy BindingUpdate, agent binding update) message to MN.To carry identifier option, home network prefix option and other the desired option in the PBU message.After receiving PBU message, the LMA transmission comprises PBA (ProxyBinding Acknowledgement, the agent binding is confirmed) message of home network prefix option to MAG.
Wherein, when MAG sends RA, must obtain the local prefix of MN earlier, the local prefix that MAG obtains MN can adopt following dual mode: 1) when in the strategy file of the local of MN prefix static configuration at MN or in as context transfer in switching during a part, MAG can know the local prefix of MN.2) in the time can't obtaining the local prefix of MN in the access procedure of MAG at MN, MAG sends to comprise and is set to 0:: the PBU message of/0 home network prefix option is given LMA, after LMA receives this PBU message, for MN distributes a local prefix, and in the PBA message of returning, comprise the local prefix of distribution, then MAG can obtain the local prefix of MN from PBA message.
Before LMA is receiving PBU message, need to verify earlier that whether the prefix of carrying in the PBU message is the interior prefix of scope of its maintenance, and MN is authorized to use this prefix.If the home network prefix option is 0: :/0, LMA is necessary for MN and distributes a prefix, and comprises the prefix of this distribution in the PBA message of returning.After LMA receives PBU message, check whether there is the BCE of MN, if there is a BCE that sign-on ID (being turn off) is not set, then LMA does not revise this BCE, but creates an interim BCE; If there is no BCE, then LMA directly creates the local prefix of sign that a new BCE includes MN, MN and Proxy-CoA (Proxy Care of Address acts on behalf of Care-of Address) etc.Receive the PBU message (promptly nullifying the message of BCE) of the lifetime=0 that comes from MN that MAG transmits as LMA after, LMA receives this PBU message, and returns PBA message along reverse path.LMA follows and uses the new BCE that creates to replace original BCE, makes and passes through the PMIP tunnel about the route of MN home network prefix.
Fig. 1 is the schematic diagram that MN moves between PMIPv6 territory and Non-PMIPv6 territory in the prior art.Referring to Fig. 1, two territories are arranged, PMIPv6 territory and Non-PMIPv6 territory, wherein, the Non-PMIPv6 territory comprises the MIPv6 territory, and HA and LMA alignment by union (co-located), and promptly two kinds of functions are positioned on the entity device, and this equipment is called anchor point device.When node was mobile between PMIPv6 territory and MIPv6 territory, the MIPv6-HoA of MN was identical with MN-HoA.
Fig. 2 is (the Mobiel IP-Binding Cache Entry of MIP-BCE in the prior art, mobile IP-banding cache clauses and subclauses) and the index of PMIP-BCE (Proxy Mobiel IP-Binding Cache Entry, proxy-mobile IP-banding cache clauses and subclauses) contrast schematic diagram.Referring to Fig. 2, comprise information such as the HoA of MN and CoA among the MIP-BCE that HA preserves, in the MIPv6 territory, MIP-BCE to search keyword (being index) be the HoA of MN; Comprise the information such as identifier (as NAI), HP and Proxy-CoA of MN among the PMIP-BCE that LMA preserves, in the PMIPv6 territory, the searching keyword of PMIP-BCE is identifier or the HP of MN.
When MN was mobile between MIPv6 territory and PMIPv6 territory, the anchor point device that has HA and LMA function simultaneously may be safeguarded MIP-BCE and the PMIP-BCE of same MN simultaneously.For example, when MN when the MIPv6 territory moves to the PMIPv6 territory, if the MN local prefix that MAG sends is to obtain by PBA message, MN receives and just knows behind the RA and oneself come back to hometown that the BU message that just should send lifetime=0 is to anchor point device.Because the BU message of lifetime=0 just sends after PMIP-BCE sets up, then this moment, anchor point device was safeguarded about necessarily having the coexistence of MIP-BCE and PMIP-BCE in the banding cache of MN.When MN when the MIPv6 territory moves to the PMIPv6 territory, if MAG obtains the local prefix of MN by policy library or switch contexts, the then transmission of RA and do not rely on finishing of PBU message/PBA message, MN receives RA message, the BU message that should send lifetime=0 is to anchor point device.Because the BU message of lifetime=0 and PBU message is the dependence on the life period not, and MN does not send the BU message of lifetime=0 or because reason such as network congestion, on anchor point device, safeguard about occurring the coexistence of MIP-BCE and PMIP-BCE in the banding cache of MN.In like manner, when MN when the PMIPv6 territory moves to the MIPv6 territory, can not in time the arriving of the PBU message of lifetime=0 also will cause on anchor point device the coexistence about MIP-BCE and the PMIP-BCE of MN.Because the keyword of searching of MIP and PMIP registration is inconsistent, when MIP-BCE that safeguards same MN in the anchor point device simultaneously and PMIP-BCE, how the two being associated becomes very important problem.
In the prior art when MN adopts the mode carry options such as NAI option and authentication in BU message to protect MIPv6 signaling between MN and the HA; the MIP-BCE that anchor point device is preserved during as HA can obtain the NAI of MN by this BU message; and carried the NAI option of MN in the PBU message that MAG sends; anchor point device preserve during as LMA about also comprising the NAI of MN among the PMIP-BCE of MN; therefore the NAI information that all includes MN among MIP-BCE and the PMIP-BCE; the NAI that can use MN this moment is as MIP-BCE and the common index of PMIP-BCE, thereby in anchor point device MIP-BCE and the PMIP-BCE of same MN associated.
In realizing process of the present invention, the inventor finds that above-mentioned prior art has following shortcoming at least:
In MIPv6 when MN uses IPsec to protect MIPv6 signaling between MN and the HA, to can not carry the NAI option in the BU message, the NAI option that then also can not have MN among the MIP-BCE that anchor point device is preserved, therefore when MIP-BCE in the anchor point device and PMIP-BCE coexistence, can't set up the common index of MIP-BCE and PMIP-BCE; Even set up common index, when anchor point device is received the message of the HoA that mails to MN that comes from CN, can't judge which forwarding entry is correct among MIP-BCE and the PMIP-BCE, therefore can't select correct forwarding entry to E-Packet, thereby can cause the situation of message dropping to occur.
Summary of the invention
For MIP-BCE and the PMIP-BCE of the same MN that will store in the anchor point device associates, the embodiment of the invention provides the method and system of a kind of MIP-BCE of foundation and the common index of PMIP-BCE.
On the one hand, the method for described MIP-BCE of foundation and the common index of PMIP-BCE comprises:
Judge whether Mobile Access Gateway obtains the home address of mobile node;
If, then described Mobile Access Gateway sends and carries the agent binding update messages of described home address to anchor point device, after described anchor point device is received as local mobile anchor, according to the home address in the described agent binding update messages, set up the proxy-mobile IP-banding cache clauses and subclauses PMIP-BCE that comprises described home address;
Otherwise, described Mobile Access Gateway sends and comprises the agent binding update messages of request for allocation to described anchor point device, after described anchor point device is received as local mobile anchor, obtain the home address of described mobile node to AAA server or the equipment of preserving the relevant information of described mobile node, set up the PMIP-BCE that comprises described home address;
Described anchor point device obtains the home address of described mobile node as home agent by binding update messages, and sets up the mobile IP-banding cache clauses and subclauses MIP-BCE that comprises described home address;
Described anchor point device with described home address as the MIP-BCE of described mobile node and the common index of PMIP-BCE.
On the other hand, the described system that sets up MIP-BCE and the common index of PMIP-BCE comprises Mobile Access Gateway and anchor point device;
Described Mobile Access Gateway comprises:
Judge module is used to judge whether described Mobile Access Gateway obtains the home address of mobile node;
Sending module is used for sending and carrying the agent binding update messages of described home address to described anchor point device when described judge module is judged described Mobile Access Gateway and obtained the home address of described mobile node; When described judge module is judged described Mobile Access Gateway and do not obtained the home address of described mobile node, send and comprise the agent binding update messages of request for allocation to described anchor point device;
Described anchor point device comprises:
Receiver module is used to receive agent binding update messages that carries described home address or the described agent binding update messages that comprises request for allocation that described sending module is sent;
The local mobile anchor module is used for according to the home address in the described agent binding update messages, setting up the PMIP-BCE that comprises described home address after described receiver module is received the described agent binding update messages that carries described home address; After described receiver module is received the described agent binding update messages that comprises request for allocation, obtain the home address of described mobile node to AAA server or the equipment of preserving the relevant information of described mobile node, set up the PMIP-BCE that comprises described home address;
The home agent module is used for obtaining by binding update messages the home address of described mobile node, and sets up the MIP-BCE that comprises described home address;
Module set up in index, and the described home address that is used for described local mobile anchor module and home agent module are obtained is as the MIP-BCE of described mobile node and the common index of PMIP-BCE.
In order to improve success ratio of message forwarding, the embodiment of the invention provides a kind of method that E-Packets, system and anchor point device.
On the one hand, the described method that E-Packets comprises:
Anchor point device receives the message that mails to mobile node;
Judge the MIP-BCE and the PMIP-BCE that whether preserve described mobile node in the described anchor point device,, and send the Binding Update request message to described mobile node if then described anchor point device sends the agent binding update request message to Mobile Access Gateway;
After described Mobile Access Gateway is received described agent binding update request message, if detect the link that described mobile node has left described Mobile Access Gateway, the request that then sends is nullified the agent binding update messages of described PMIP-BCE to described anchor point device, after described anchor point device is received, delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node;
After described mobile node is received described Binding Update request message, if the prefix information according to link of living in detects own in the local, the request that then sends is nullified the binding update messages of MIP-BCE to described anchor point device, after described anchor point device is received, delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node.
On the other hand, the described system that E-Packets comprises anchor point device, Mobile Access Gateway and mobile node;
Described anchor point device is used to receive the message that mails to described mobile node; When MIP-BCE that preserves described mobile node in the described anchor point device and PMIP-BCE, send the agent binding update request message to described Mobile Access Gateway, and send the Binding Update request message to described mobile node; Also be used to receive the request that described Mobile Access Gateway sends and nullify the agent binding update messages of described PMIP-BCE, or receive the binding update messages that described MIP-BCE is nullified in request that described mobile node sends; After receiving that described request is nullified the agent binding update messages of described PMIP-BCE, delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; After receiving that described request is nullified the binding update messages of described MIP-BCE, delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node;
Described Mobile Access Gateway, be used to receive the agent binding update request message that described anchor point device is sent, also be used for when detecting described mobile node and left the link of described Mobile Access Gateway, the request of transmission is nullified the agent binding update messages of described PMIP-BCE to described anchor point device;
Described mobile node is used to receive the Binding Update request message that described anchor point device is sent, and receives the message that described anchor point device is sent; Also be used for when the prefix information according to described mobile node link of living in detects oneself in the local, the request of transmission is nullified the binding update messages of MIP-BCE to described anchor point device.
On the other hand, described anchor point device comprises:
Receiver module, be used to receive the message that mails to mobile node, also be used to receive the request that Mobile Access Gateway sends and nullify the agent binding update messages of the PMIP-BCE of described mobile node, or receive the binding update messages that the MIP-BCE of described mobile node is nullified in request that described mobile node sends;
Sending module is used for sending the agent binding update request message to described Mobile Access Gateway, and sending the Binding Update request message to described mobile node when described anchor point device is preserved the MIP-BCE of described mobile node and PMIP-BCE;
Removing module is used for deleting described PMIP-BCE after described receiver module receives that described request is nullified the agent binding update messages of PMIP-BCE of described mobile node; After described receiver module receives that described request is nullified the binding update messages of MIP-BCE of described mobile node, delete described MIP-BCE;
Forwarding module is used for after described removing module is deleted described PMIP-BCE, transmits the message that described receiver module receives according to described MIP-BCE and gives described mobile node; After described removing module is deleted described MIP-BCE, transmit the message that described receiver module receives according to described PMIP-BCE and give described mobile node.
The embodiment of the invention also provides a kind of method that E-Packets, system and anchor point device.
On the one hand, the described method that E-Packets comprises:
Anchor point device receives the message that mails to mobile node;
Judge the MIP-BCE and the PMIP-BCE that whether preserve described mobile node in the described anchor point device, and described PMIP-BCE generates after described MIP-BCE;
If preserve the MIP-BCE and the PMIP-BCE of described mobile node in the described anchor point device, and described PMIP-BCE generates after described MIP-BCE, then described anchor point device confirms whether to allow to delete described MIP-BCE to described mobile node, if allow, then described anchor point device is deleted described MIP-BCE, transmits described message according to described PMIP-BCE and gives described mobile node; If do not allow, then described anchor point device confirms whether to allow to delete described PMIP-BCE to Mobile Access Gateway, if allow, then deletes described PMIP-BCE, transmits described message according to described MIP-BCE and gives described mobile node;
If preserve the MIP-BCE and the PMIP-BCE of described mobile node in the described anchor point device, and described MIP-BCE generates after described PMIP-BCE, then described anchor point device confirms whether to allow to delete described PMIP-BCE to described Mobile Access Gateway, if allow, then described anchor point device is deleted described PMIP-BCE, transmits described message according to described MIP-BCE and gives described mobile node; If do not allow, then described anchor point device confirms whether to allow to delete described MIP-BCE to described mobile node, if allow, then deletes described MIP-BCE, transmits described message according to described PMIP-BCE and gives described mobile node.
On the other hand, the described system that E-Packets comprises: anchor point device, Mobile Access Gateway and mobile node;
Described anchor point device is used to receive the message that mails to described mobile node; Be used for also judging whether described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE; If described anchor point device is preserved the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node; If do not allow, then ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If described anchor point device is preserved the MIP-BCE and the PMIP-BCE of described mobile node, and described MIP-BCE generates after described PMIP-BCE, then ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If do not allow, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node;
Described mobile node is used to receive the request whether affirmation that described anchor point device sends allows to delete described MIP-BCE, returns corresponding results after the affirmation; Also be used to receive the message that described anchor point device is sent;
Described Mobile Access Gateway is used to receive the request whether affirmation that described anchor point device sends allows to delete described PMIP-BCE, returns corresponding results after the affirmation.
On the other hand, described anchor point device comprises:
Receiver module is used to receive the message that mails to mobile node;
Judge module be used for judging whether that described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE;
First forwarding module, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and when described PMIP-BCE generates after described MIP-BCE, ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit the message that described receiver module receives according to described PMIP-BCE and give described mobile node; If do not allow, then ask Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node;
Second forwarding module, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and described MIP-BCE generates after described PMIP-BCE, ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If do not allow, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node.
The embodiment of the invention also provides a kind of method that E-Packets, system and anchor point device.Described technical scheme is as follows:
On the one hand, a kind of method that E-Packets, mobile node moves to the PMIPv6 territory from non-PMIPv6 territory, and described method comprises:
Anchor point device receives the message that mails to described mobile node;
Judge whether to preserve in the described anchor point device MIP-BCE and the PMIP-BCE of described mobile node, and receive the agent binding update messages that comprises the described MIP-BCE request of cancellation that Mobile Access Gateway is sent;
If, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE, transmit described message according to described new PMIP-BCE and give described mobile node.
On the other hand, a kind of system that E-Packets, described system comprises: anchor point device, Mobile Access Gateway and mobile node, and described mobile node moves to the PMIPv6 territory from non-PMIPv6 territory;
Described anchor point device, be used to receive the message that mails to described mobile node, and judge whether to preserve in the described anchor point device MIP-BCE and the PMIP-BCE of described mobile node, and receive the agent binding update messages that comprises the described MIP-BCE request of cancellation that described Mobile Access Gateway is sent, if, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE, transmit described message according to described new PMIP-BCE and give described mobile node;
Described Mobile Access Gateway is used to detect described mobile node after on the link of described Mobile Access Gateway, send comprise nullify described MIP-BCE request agent binding update messages to anchor point device;
Described mobile node is used to receive described anchor point device and transmits the described message of coming.
On the other hand, a kind of anchor point device, when mobile node when non-PMIPv6 territory moves to the PMIPv6 territory, described anchor point device comprises;
Receiver module is used to receive the message that mails to mobile node, and receives the agent binding update messages that comprises the described MIP-BCE request of cancellation that Mobile Access Gateway is sent;
Processing module, be used for judging whether that described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described receiver module receives the agent binding update messages that comprises the described MIP-BCE request of cancellation that described Mobile Access Gateway is sent, if, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE;
Forwarding module is used for transmitting described message according to the new PMIP-BCE that described processing module obtains and gives described mobile node.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
Obtain the HoA of MN as LMA by anchor point device, and foundation comprises the PMIP-BCE of HoA, obtain HoA as HA by BU message, and foundation comprises the MIP-BCE of HoA, thereby, realized MIP-BCE and the PMIP-BCE of same MN in the anchor point device are associated with the HoA of MN common index as MIP-BCE and PMIP-BCE.Send BRR message by anchor point device to MN, send PBRR message to MAG, after affirmation can be deleted MIP-BCE or PMIP-BCE, delete corresponding BCE, be transmitted to the message of MN then according to the BCE that keeps, avoided selecting wrong BCE to E-Packet, and caused the situation of message dropping to take place, realized the purpose that correctly E-Packets having improved success ratio of message forwarding.Confirm the sequencing that MIP-BCE and PMIP-BCE generate earlier by anchor point device, delete affirmation according to this order to MN or MAG then, thereby delete corresponding BCE, keep correct BCE, and E-Packet to MN according to the BCE that keeps, realized the purpose that correctly E-Packets, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, improved success ratio of message forwarding.
Description of drawings
Fig. 1 is the schematic diagram that MN moves between PMIPv6 territory and Non-PMIPv6 territory in the prior art;
Fig. 2 is the index contrast schematic diagram of MIP-BCE and PMIP-BCE in the prior art;
Fig. 3 is the method flow diagram of setting up MIP-BCE and the common index of PMIP-BCE that the embodiment of the invention 1 provides;
Fig. 4 is the PBU message structure schematic diagram of the HoA that carries MN that provides of the embodiment of the invention 1;
Fig. 5 is the PBU message structure schematic diagram that carries request for allocation that the embodiment of the invention 1 provides;
Fig. 6 is anchor point device that the embodiment of the invention 1 provides obtains the HoA of MN from aaa server a schematic diagram;
Fig. 7 is the method flow diagram that E-Packets that the embodiment of the invention 2 provides;
Fig. 8 is the PBRR message structure schematic diagram that the embodiment of the invention 2 provides;
Fig. 9 is the MN that provides of the embodiment of the invention 2 when the PMIPv6 territory moves to the MIPv6 territory, and anchor point device is handled schematic diagram;
Figure 10 is the MN that provides of the embodiment of the invention 2 when the MIPv6 territory moves to the PMIPv6 territory, and anchor point device is handled schematic diagram;
Figure 11 is the method flow diagram that E-Packets that the embodiment of the invention 3 provides;
Figure 12 be PMIP-BCE that the embodiment of the invention 3 provides when after MIP-BCE, generating anchor point device handle schematic diagram;
Figure 13 be MIP-BCE that the embodiment of the invention 3 provides when after PMIP-BCE, generating anchor point device handle schematic diagram;
Figure 14 is MN that the embodiment of the invention 4 provides moves to the PMIPv6 territory from the Non-PMIPv6 territory a schematic diagram;
Figure 15 is the schematic flow sheet that MN that the embodiment of the invention 4 provides E-Packets when the Non-PMIPv6 territory moves to the PMIPv6 territory;
Figure 16 is the PBU message structure schematic diagram that comprises de-registration request that the embodiment of the invention 4 provides;
Figure 17 is the system construction drawing of setting up MIP-BCE and the common index of PMIP-BCE that the embodiment of the invention 5 provides;
Figure 18 is the system construction drawing that E-Packets that the embodiment of the invention 6 provides;
Figure 19 is the structure chart of the anchor point device that provides of the embodiment of the invention 7;
Figure 20 is the system construction drawing that E-Packets that the embodiment of the invention 8 provides;
Figure 21 is the structure chart of the anchor point device that provides of the embodiment of the invention 9;
Figure 22 is the system construction drawing that E-Packets that the embodiment of the invention 10 provides;
Figure 23 is the structure chart of the anchor point device that provides of the embodiment of the invention 11.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Anchor point device in the embodiment of the invention is meant the equipment that possesses HA and LMA function simultaneously, and the territory, local is meant the territory of couple in router announcement moving nodes local prefix, as the PMIPv6 territory.
Embodiment 1
Present embodiment obtains the HoA of MN as LMA by anchor point device, make the HoA that comprises MN among the PMIP-BCE, anchor point device by the BU message that MN sends, makes the HoA that comprises MN among the MIP-BCE as HA, thereby can be with the HoA of the MN common index as MIP-BCE and PMIP-BCE.
Referring to Fig. 3, the embodiment of the invention provides the method for a kind of MIP-BCE of foundation and the common index of PMIP-BCE, specifically comprises:
Step 101: judge whether MAG obtains the HoA of MN, if then execution in step 102; Otherwise, execution in step 104.
Step 102:MAG sends the PBU message of the HoA that carries MN to anchor point device.
Wherein, MAG carries the mode of HoA of MN in PBU message specific as follows: increase new home network prefix option in PBU message, the length that this option is set is 128 bits, and the HoA of MN is filled in this option.
For example, Fig. 4 is the PBU message structure schematic diagram of the HoA that carries MN that provides of the embodiment of the invention 1.Referring to Fig. 4, carried newly-increased home network prefix option in the PBU message, its length is 128, and content is the HoA of MN, and by sending this PBU message, MAG can send to anchor point device with the HoA of MN.
Step 103: anchor point device extracts the HoA in the PBU message, and sets up the PMIP-BCE that comprises this HoA after receiving the PBU message that MAG sends as LMA, and execution in step 110 then.
Step 104:MAG sends and comprises the PBU message of request for allocation to anchor point device.
Wherein, it is specific as follows that MAG sends the PBU message that comprises request for allocation: increase new home network prefix option in PBU message, it is 128 that its length is set, and the content of this option all is filled to zero.
For example, Fig. 5 is the PBU message structure schematic diagram that carries request for allocation that the embodiment of the invention 1 provides.Referring to Fig. 5, carried the home network prefix option in the PBU message, its length is 64, content is the local prefix of MN, also carried newly-increased home network prefix option, its length is 128, and content all is zero, by sending this PBU message, MAG application anchor point device distributes a HoA for this MN.
Step 105: after anchor point device is received this PBU message as LMA, whether be authorized to agency as MN to AAA (Authentication Authorizationand Accounting, authentication) server authentication MAG.
Step 106: anchor point device receives the response message that AAA returns.
Step 107: judge the HoA that whether comprises MN in this response message, if then execution in step 108; Otherwise, execution in step 109.
Step 108: anchor point device extracts the HoA in this response message, and sets up the PMIP-BCE that comprises this HoA, and execution in step 110 then.
For example, Fig. 6 is anchor point device that the embodiment of the invention 1 provides obtains the HoA of MN from aaa server a schematic diagram.Referring to Fig. 6, aaa server can obtain the HoA of MN by static configuration or dynamic-configuration, and be kept on the aaa server, after MAG sent PBU message, anchor point device sent AAA Query request message to aaa server as LMA, verified to the aaa server application whether MAG is authorized to the agency as MN, after aaa server is verified, return the AAA Reply response message of the HoA that comprises MN and give anchor point device, thereby anchor point device gets access to the HoA of MN, is kept among the PMIP-BCE.Anchor point device sends PBA message to MAG then, confirms.
Step 109: anchor point device is according to the request for allocation in the PBU message of receiving, as according to content in the PBU message being zero new home network prefix option, obtain the HoA of MN from the equipment of preserving the MN relevant information, this HoA is distributed to MN, and set up the PMIP-BCE that comprises this HoA.Execution in step 110 then.
Wherein, the equipment of preserving the MN relevant information includes but not limited to DNS (Domain Name Server, name server), DHCP server (Dynamic Host Configuration Protocol server, Dynamic Host Configuration Protocol server) and aaa server etc., preserve the relevant information of MN in these equipment, comprise the HoA of MN; When anchor point device obtains the HoA of MN from these equipment, can in these equipment, search the HoA of MN by the NAI of MN.
Step 110: the BU message that anchor point device sends by MN as HA obtains the HoA of MN, and sets up the MIP-BCE that comprises this HoA.
Wherein, anchor point device obtains the HoA of MN as HA step and anchor point device do not have fixing sequencing as the step that LMA obtains the HoA of MN, can carry out simultaneously yet.
Step 111: anchor point device with the HoA of MN as the MIP-BCE of MN and the common index of PMIP-BCE.
Present embodiment obtains the HoA of MN as LMA by anchor point device, and foundation comprises the PMIP-BCE of HoA, obtain HoA as HA by BU message, and foundation comprises the MIP-BCE of HoA, thereby, realized MIP-BCE and the PMIP-BCE of same MN in the anchor point device are associated with the HoA of MN common index as MIP-BCE and PMIP-BCE.By obtaining to AAA or obtaining HoA to the equipment of the relevant information of preserving MN, can set up the PMIP-BCE that comprises HoA, realize easily.
Embodiment 2
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE by the method among the embodiment 1 with the HoA of MN, and referring to Fig. 7, the embodiment of the invention provides a kind of method that E-Packets, and specifically comprises:
Step 201: anchor point device receives the message of being sent by CN that mails to MN.
Step 202: judge the MIP-BCE and the PMIP-BCE that whether preserve this MN in the anchor point device simultaneously, if then execution in step 203; Otherwise, execution in step 210.
Wherein, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Step 203: anchor point device sends PBRR (Proxy Binding Refresh Request, agent binding update request) message to MAG, and sends BRR (Binding Refresh Request, Binding Update request) message to MN.
Wherein, PBRR message is specially adds sign " P " in the reserved field in BRR message, be used for asking MAG to send agent binding update messages.For example, Fig. 8 is the PBRR message structure schematic diagram that the embodiment of the invention 2 provides.Referring to Fig. 8, newly add " P " sign in first in the reserved field of BRR message, generate PBRR message.
Step 204: after MAG receives PBRR message, survey the link whether MN has left MAG, if then execution in step 205; Otherwise, execution in step 206.
Step 205:MAG sends request and nullifies the PBU message of PMIP-BCE to anchor point device, the PBU message that promptly sends Lifetime=0 is to anchor point device, after anchor point device is received this PBU message, deletion PMIP-BCE, this moment, anchor point device only kept MIP-BCE, then transmit the message of receiving according to MIP-BCE and give MN, execution in step 207 then.
Step 206:MAG sends PBU message to anchor point device, after anchor point device is received this PBU message, upgrades PMIP-BCE, and transmits the message of receiving according to the PMIP-BCE after upgrading and give MN, and execution in step 207 then.
For example, Fig. 9 is the MN that provides of the embodiment of the invention 2 when the PMIPv6 territory moves to the MIPv6 territory anchor point device is handled schematic diagram.Referring to Fig. 9, when anchor point device is found the MIP-BCE of same MN and PMIP-BCE coexistence, send PBRR message and BRR message to MAG and MN simultaneously respectively, after MAG detects the link (being the PMIP territory) that MN leaves MAG, the PBU message that sends Lifetime=0 is to anchor point device, after anchor point device is received, the PMIP-BCE of deletion storage, think that promptly MN roams into other territories from PMIP territory, local, then anchor point device no longer need be transmitted to the message of MN according to PMIP-BCE, anchor point device sends PBA message to MAG then, confirms.After anchor point device is received the BU message that MN sends, the MIP-BCE that confirms storage is effective, upgrade, only there is MIP-BCE in the BCE about MN in the anchor point device thereby make, the message that mails to MN this moment will be transmitted by MIP-BCE, anchor point device sends BA message to MN then, confirms.
Step 207: after MN receives BRR message, survey oneself whether in the local, if then execution in step 208 according to the prefix information of residing link; Otherwise, execution in step 209.
Step 208:MN sends request and nullifies the BU message of MIP-BCE to anchor point device, the BU message that promptly sends Lifetime=0 is to anchor point device, after anchor point device is received this BU message, deletion MIP-BCE, only kept PMIP-BCE in the anchor point device this moment, then transmit the message of receiving and give MN, finish then according to PMIP-BCE.
Step 209:MN detects the township that oneself stays out, and then sends BU message to anchor point device, after anchor point device is received this BU message, upgrades MIP-BCE, and transmits the message of receiving according to the MIP-BCE after upgrading and give MN, finishes then.
For example, Figure 10 is the MN that provides of the embodiment of the invention 2 when the MIPv6 territory moves to the PMIPv6 territory anchor point device is handled schematic diagram.Referring to Figure 10, when anchor point device is found the MIP-BCE of same MN and PMIP-BCE coexistence, send PBRR message and BRR message to MAG and MN simultaneously respectively, MN detects own after local (being the PMIP territory) according to present residing link prefix information, the BU message that sends Lifetime=0 is to anchor point device, after anchor point device is received, the MIP-BCE of deletion storage, think promptly that MN does not leave the local or the PMIP territory of having come back to hometown in, then anchor point device no longer need be transmitted to the message of MN according to MIP-BCE, anchor point device sends BA message to MN then, confirms.After anchor point device is received the PBU message that MAG sends, the PMIP-BCE that confirms storage is effective, upgrade, only there is PMIP-BCE in the BCE about MN in the anchor point device thereby make, the message that mails to MN this moment will be transmitted by PMIP-BCE, anchor point device sends PBA message to MAG then, confirms.
Step 210: about this MN have only a BCE in the anchor point device this moment, perhaps be MIP-BCE or be PMIP-BCE, and then anchor point device is transmitted the message of receiving according to this BCE and given MN, end then.
MAG transmission PBU message and anchor point device are according to the process of this PBU information updating or cancellation PMIP-BCE in the present embodiment, sending BU message and anchor point device with MN not have the sequencing fixed according to this BU information updating or the process of nullifying MIP-BCE, carries out simultaneously usually.
Present embodiment sends BRR message by anchor point device to MN, send PBRR message to MAG, after affirmation can be deleted MIP-BCE or PMIP-BCE, delete corresponding BCE, be transmitted to the message of MN then according to the BCE that keeps, avoided selecting wrong BCE to E-Packet, and caused the situation of message dropping to take place, realized the purpose that correctly E-Packets having improved success ratio of message forwarding.After MAG detects the link that MN do not leave MAG, send PBU message to anchor point device, thereby confirmed that the PMIP-BCE in the anchor point device is effective, make anchor point device upgrade this PMIP-BCE, and realized correctly E-Packeting according to this PMIP-BCE.After MN detects the township that oneself stays out, send BU message to anchor point device, thereby confirmed that the MIP-BCE in the anchor point device is effective, make anchor point device upgrade this MIP-BCE, and realized correctly E-Packeting according to this MIP-BCE.
Embodiment 3
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE by the method among the embodiment 1 with the HoA of MN, and referring to Figure 11, the embodiment of the invention also provides a kind of method that E-Packets, and specifically comprises:
Step 301: anchor point device receives the message that mails to MN;
Step 302: judge whether to preserve in the anchor point device MIP-BCE and the PMIP-BCE of MN, and PMIP-BCE generates after MIP-BCE; If preserve MIP-BCE and the PMIP-BCE of MN in the anchor point device, and PMIP-BCE generates after MIP-BCE, and then execution in step 303; If preserve MIP-BCE and the PMIP-BCE of MN in the anchor point device, and MIP-BCE generates after PMIP-BCE, and then execution in step 307; Otherwise, finish.
Wherein, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, when MN when the MIPv6 territory moves to the PMIPv6 territory, PMIP-BCE generates after MIP-BCE; When MN when the PMIPv6 territory moves to the MIPv6 territory, MIP-BCE generates after PMIP-BCE.
Step 303: anchor point device confirms whether to allow to delete MIP-BCE to MN, if allow, then execution in step 304; Otherwise, execution in step 305.
Wherein, anchor point device confirms that to MN the step that whether allows to delete MIP-BCE can specifically comprise:
Anchor point device sends BRR message to MN, after MN receives, whether surveys oneself in the local according to the prefix information of link of living in; If in the local, the BU message that MIP-BCE is nullified in the request that then sends is to anchor point device, and the BU message that promptly sends Lifetime=0 confirms to allow deletion MIP-BCE to anchor point device; If stay out the township, then send BU message to anchor point device, MIP-BCE is upgraded in request.
Step 304: anchor point device deletion MIP-BCE, E-Packet to MN according to PMIP-BCE, finish then.
For example, Figure 12 be PMIP-BCE that the embodiment of the invention 3 provides when after MIP-BCE, generating anchor point device handle schematic diagram.Referring to Figure 12, when anchor point device is found the MIP-BCE of same MN and PMIP-BCE coexistence, and PMIP-BCE is when generating MIP-BCE after, and transmission BRR message is to MN, after MN receives, whether survey oneself in the local according to the prefix information of link of living in,, then return the BU message of Lifetime=0 and give anchor point device if in the local, after anchor point device is received, delete the MIP-BCE of this MN, return BA message and give MN, and E-Packet according to PMIP-BCE; If stay out the township, then return BU (Lifetime is not 0) message and give anchor point device, anchor point device can upgrade MIP-BCE, and further confirms whether can delete PMIP-BCE to MAG.
Step 305: anchor point device confirms whether to allow to delete PMIP-BCE to MAG, if allow, then execution in step 306; Otherwise, finish.
Step 306: anchor point device deletion PMIP-BCE, E-Packet to MN according to MIP-BCE, finish then.
Wherein, anchor point device confirms to allow the step of deletion PMIP-BCE specifically to comprise to MAG:
Anchor point device sends PBRR message to MAG, after MAG receives, detect the link that MN has left MAG, the request that then sends is nullified the PBU message of PMIP-BCE to anchor point device, the PBU message that promptly sends Lifetime=0 confirms to allow deletion PMIP-BCE to anchor point device.
Wherein, PBRR message is specially adds sign " P " in the reserved field in BRR message, be used for asking MAG to send agent binding update messages.
Step 307: anchor point device confirms whether to allow to delete PMIP-BCE to MAG, if allow, then execution in step 308; Otherwise, execution in step 309.
Wherein, anchor point device confirms that to MAG the step that whether allows to delete PMIP-BCE can specifically comprise:
Anchor point device sends PBRR message to MAG, after MAG receives, surveys the link whether MN has left MAG; If leave, the PBU message that PMIP-BCE is nullified in the request that then sends is to anchor point device, and the PBU message that promptly sends Lifetime=0 confirms to allow deletion PMIP-BCE to anchor point device; If do not leave, then send PBU message to anchor point device, PMIP-BCE is upgraded in request.
Step 308: anchor point device deletion PMIP-BCE, E-Packet to MN according to MIP-BCE, finish then.
For example, Figure 13 be MIP-BCE that the embodiment of the invention 3 provides when after PMIP-BCE, generating anchor point device handle schematic diagram.Referring to Figure 13, when anchor point device is found the MIP-BCE of same MN and PMIP-BCE coexistence, and MIP-BCE is when generating PMIP-BCE after, and transmission PBRR message is to MAG, after MAG receives, survey MN and whether left the link of MAG,, then return the PBU message of Lifetime=0 and give anchor point device if leave, after anchor point device is received, delete the PMIP-BCE of this MN, send PBA message then, and E-Packet according to MIP-BCE to MAG; If do not leave, then return PBU (Lifetime is not 0) message and give anchor point device, anchor point device can upgrade PMIP-BCE, and further confirms whether can delete MIP-BCE to MN.
Step 309: anchor point device confirms whether to allow to delete MIP-BCE to MN, if allow, then execution in step 310; Otherwise, finish.
Step 310: anchor point device deletion MIP-BCE, E-Packet to MN according to PMIP-BCE, finish then.
Wherein, anchor point device confirms to allow the step of deletion MIP-BCE specifically to comprise to MN:
Anchor point device sends BRR message to MN, after MN receives, detect ownly in the local according to the prefix information of residing link, the request that then sends is nullified the BU message of MIP-BCE to anchor point device, the BU message that promptly sends Lifetime=0 confirms to allow deletion MIP-BCE to anchor point device.
Present embodiment is confirmed the sequencing that MIP-BCE and PMIP-BCE generate earlier by anchor point device, delete affirmation according to this order to MN or MAG then, thereby delete corresponding BCE, keep correct BCE, and E-Packet to MN according to the BCE that keeps, realized the purpose that correctly E-Packets, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, improved success ratio of message forwarding.After MAG detects the link that MN do not leave MAG, send PBU message to anchor point device, thereby confirmed that the PMIP-BCE in the anchor point device is effective, make anchor point device upgrade this PMIP-BCE, and realized correctly E-Packeting according to this PMIP-BCE.After MN detects the township that oneself stays out, send BU message to anchor point device, thereby confirmed that the MIP-BCE in the anchor point device is effective, make anchor point device upgrade this MIP-BCE, and realized correctly E-Packeting according to this MIP-BCE.
Embodiment 4
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 14 is MN that the embodiment of the invention 4 provides moves to the PMIPv6 territory from the Non-PMIPv6 territory a schematic diagram.Referring to Figure 14, when MN (comprises the MIPv6 territory) when moving to the PMIPv6 territory from the Non-PMIPv6 territory, the method that E-Packets in the embodiment of the invention can also be reduced to the MAG transmission and comprise the PBU message of de-registration request to anchor point device, anchor point device is received back deletion MIP-BCE and is set up the step of PMIP-BCE, referring to Figure 15, specific as follows:
Preserve MIP-BCE and the PMIP-BCE of same MN in the anchor point device.MAG detects MN after on the link of MAG, the MAG transmission comprises the PBU message of cancellation MIP-BCE request to anchor point device, after anchor point device is received this PBU message, the MIP-BCE that deletion has been preserved, and set up new PMIP-BCE, if existing PMIP-BCE in the anchor point device, then cover former PMIP-BCE with newly-generated PMIP-BCE, thereby make and only preserve PMIP-BCE in the anchor point device, anchor point device returns the PBA message that comprises special identifier and gives MAG then, show and nullify successfully, in subsequent cycle register update process, the PBU message that MAG sends will no longer comprise de-registration request, but the PBU message of standard, anchor point device was transmitted according to PMIP-BCE and was come from the message that CN mails to MN this moment.
Wherein, when preserving MIP-BCE and PMIP-BCE in the anchor point device, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, Figure 16 is the PBU message structure schematic diagram that comprises de-registration request that the embodiment of the invention 4 provides.Referring to Figure 16, a newly-increased sign position " D " in the reserved field of the PBU message that the PBU message that comprises cancellation MIP-BCE request that MAG sends can be specially in standard, be used for asking anchor point device to nullify the MIP-BCE that has preserved, MAG sends this PBU message and can be authorized in the process of authentication by aaa server or strategic server equipment such as (Policy Server).Anchor point device returns the PBA message that comprises special identifier and also can show to nullify and operate successfully for carrying the PBA message of sign " D ".
Present embodiment comprises the PBU message of cancellation MIP-BCE request to anchor point device by the MAG transmission, make anchor point device deletion MIP-BCE, and set up new PMIP-BCE, thereby realized that MN (comprises the MIPv6 territory) when moving to the PMIPv6 territory from the Non-PMIPv6 territory, keep correct BCE in the anchor point device, and E-Packet to MN according to this BCE, avoided message dropping, improved success ratio of message forwarding.
Embodiment 5
Figure 17 is the system construction drawing of setting up MIP-BCE and the common index of PMIP-BCE that the embodiment of the invention 5 provides.Referring to Figure 17, the embodiment of the invention provides the system of a kind of MIP-BCE of foundation and the common index of PMIP-BCE, specifically comprises Mobile Access Gateway and anchor point device;
Mobile Access Gateway comprises:
Judge module is used to judge whether Mobile Access Gateway obtains the home address of mobile node;
Sending module is used for sending and carrying the agent binding update messages of home address to anchor point device when judge module is judged Mobile Access Gateway and obtained the home address of mobile node; When judge module is judged Mobile Access Gateway and do not obtained the home address of mobile node, send and comprise the agent binding update messages of request for allocation to anchor point device;
Anchor point device comprises:
Receiver module is used to receive agent binding update messages that carries home address that sending module sends or the agent binding update messages that comprises request for allocation;
The local mobile anchor module is used for after receiver module is received the agent binding update messages that carries home address, according to the home address in the agent binding update messages, sets up the PMIP-BCE that comprises home address; After receiving the agent binding update messages that comprises request for allocation when receiver module, obtain the home address of mobile node, set up the PMIP-BCE that comprises home address to AAA server or the equipment of preserving the relevant information of mobile node;
The home agent module is used for obtaining by binding update messages the home address of mobile node, and sets up the MIP-BCE that comprises home address;
Module set up in index, and the home address that is used for local mobile anchor module and home agent module are obtained is as the MIP-BCE of mobile node and the common index of PMIP-BCE.
Wherein, the local mobile anchor module can specifically comprise:
First processing unit is used for after receiver module is received the agent binding update messages that carries home address, according to the home address in the agent binding update messages, sets up the PMIP-BCE that comprises home address;
Second processing unit, be used for after receiver module is received the agent binding update messages that comprises request for allocation, verify that to AAA server whether Mobile Access Gateway is authorized to the agency as mobile node, receives the response message that AAA server returns; Judge the home address that whether comprises mobile node in the response message, if then set up the PMIP-BCE that comprises home address; Otherwise, obtain the moving nodes local address from the equipment of the relevant information of preserving mobile node, and set up the PMIP-BCE that comprises this home address.
Present embodiment obtains the HoA of MN by the local mobile anchor module of anchor point device, and foundation comprises the PMIP-BCE of HoA, the home agent module obtains HoA by BU message, and foundation comprises the MIP-BCE of HoA, index is set up module with the HoA of the MN common index as MIP-BCE and PMIP-BCE, has realized MIP-BCE and the PMIP-BCE of same MN in the anchor point device are associated.By obtaining to AAA or obtaining HoA to the equipment of the relevant information of preserving MN, can set up the PMIP-BCE that comprises HoA, realize easily.
Embodiment 6
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 18 is the system construction drawing that E-Packets that the embodiment of the invention 6 provides.Referring to Figure 18, the embodiment of the invention provides a kind of system that E-Packets, and comprises anchor point device, Mobile Access Gateway and mobile node.Wherein,
Anchor point device is used to receive the message that mails to mobile node; When MIP-BCE that preserves mobile node in the anchor point device and PMIP-BCE, send the agent binding update request message to Mobile Access Gateway, and send the Binding Update request message to mobile node; Also be used to receive the request that Mobile Access Gateway sends and nullify the agent binding update messages of PMIP-BCE, or receive the binding update messages that MIP-BCE is nullified in request that mobile node sends; Nullify the agent binding update messages of PMIP-BCE when the request of receiving after, deletion PMIP-BCE E-Packets to mobile node according to MIP-BCE; Nullify the binding update messages of MIP-BCE when the request of receiving after, deletion MIP-BCE E-Packets to mobile node according to PMIP-BCE;
Mobile Access Gateway is used to receive the agent binding update request message that anchor point device is sent, and also is used for when detecting mobile node and left the link of Mobile Access Gateway, and the request of transmission is nullified the agent binding update messages of PMIP-BCE to anchor point device;
Mobile node is used to receive the Binding Update request message that anchor point device is sent, and receives the message that anchor point device is sent; Also be used for when the prefix information according to mobile node link of living in detects oneself in the local, the request of transmission is nullified the binding update messages of MIP-BCE to anchor point device.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, Mobile Access Gateway can also be used for when detecting mobile node and do not leave the link of Mobile Access Gateway, sends agent binding update messages to anchor point device; Correspondingly, anchor point device can also be used to receive the agent binding update messages that Mobile Access Gateway is sent; And anchor point device can also comprise:
Update module is used for after anchor point device is received agent binding update messages, upgrades PMIP-BCE.
Wherein, mobile node can also be used for detecting when oneself staying out the township when the prefix information according to mobile node link of living in, sends binding update messages to anchor point device; Correspondingly, anchor point device can also be used to receive the binding update messages that the sending module of mobile node is sent; And anchor point device can also comprise:
Update module is used for after anchor point device is received binding update messages, upgrades MIP-BCE.
Present embodiment sends BRR message by the sending module of anchor point device to MN, send PBRR message to MAG, removing module deletion MIP-BCE or PMIP-BCE, forwarding module E-Packets to MN according to the BCE that keeps, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, realized the purpose that correctly E-Packets having improved success ratio of message forwarding.After MAG detects the link that MN do not leave MAG, send PBU message to anchor point device, thereby confirmed that the PMIP-BCE in the anchor point device is effective, make anchor point device upgrade this PMIP-BCE, and realized correctly E-Packeting according to this PMIP-BCE.After MN detects the township that oneself stays out, send BU message to anchor point device, thereby confirmed that the MIP-BCE in the anchor point device is effective, make anchor point device upgrade this MIP-BCE, and realized correctly E-Packeting according to this MIP-BCE.
Embodiment 7
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 19 is the structure chart of the anchor point device that provides of the embodiment of the invention 7.Referring to Figure 19, the embodiment of the invention provides a kind of anchor point device, specifically comprises:
Receiver module, be used to receive the message that mails to mobile node, also be used to receive the request that Mobile Access Gateway sends and nullify the agent binding update messages of the PMIP-BCE of mobile node, or receive the binding update messages that the MIP-BCE of mobile node is nullified in request that mobile node sends;
Sending module is used for sending the agent binding update request message to Mobile Access Gateway, and sending the Binding Update request message to mobile node when anchor point device is preserved the MIP-BCE of mobile node and PMIP-BCE;
Removing module is used for after receiver module is received the agent binding update messages of the PMIP-BCE that asks the cancellation mobile node deletion PMIP-BCE; Receive the binding update messages of the MIP-BCE that asks the cancellation mobile node when receiver module after, deletion MIP-BCE;
Forwarding module is used for giving mobile node according to the message that MIP-BCE forwarding receiver module is received behind removing module deletion PMIP-BCE; Behind removing module deletion MIP-BCE, give mobile node according to the message that PMIP-BCE forwarding receiver module is received.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, receiver module can also be used to receive the agent binding update messages that Mobile Access Gateway is sent, and correspondingly, anchor point device can also comprise:
Update module is used for after receiver module is received agent binding update messages, upgrades PMIP-BCE.
Wherein, receiver module can also be used to receive the binding update messages that mobile node is sent, and correspondingly, anchor point device also comprises:
Update module is used for after receiver module is received binding update messages, upgrades MIP-BCE.
Present embodiment sends BRR message by the sending module of anchor point device to MN, send PBRR message to MAG, removing module deletion MIP-BCE or PMIP-BCE, forwarding module E-Packets to MN according to the BCE that keeps, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, realized the purpose that correctly E-Packets having improved success ratio of message forwarding.Update module is upgraded corresponding BCE after receiver module is received corresponding updating message, and anchor point device can correctly be E-Packeted according to the BCE after upgrading.
Embodiment 8
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 20 is the system construction drawing that E-Packets that the embodiment of the invention 8 provides.Referring to Figure 20, the embodiment of the invention provides a kind of system that E-Packets, and comprises anchor point device, Mobile Access Gateway and mobile node;
Anchor point device is used to receive the message that mails to mobile node; Be used for also judging whether anchor point device preserves the MIP-BCE and the PMIP-BCE of mobile node, and PMIP-BCE generates after MIP-BCE; If anchor point device is preserved the MIP-BCE and the PMIP-BCE of mobile node, and PMIP-BCE generates after MIP-BCE, then ask mobile node to confirm whether to allow to delete MIP-BCE, if allow, then delete MIP-BCE, give mobile node according to the message that PMIP-BCE forwarding anchor point device is received; If do not allow, then ask Mobile Access Gateway to confirm whether to allow to delete PMIP-BCE, if allow, then delete PMIP-BCE, E-Packet to mobile node according to MIP-BCE; If anchor point device is preserved the MIP-BCE and the PMIP-BCE of mobile node, and MIP-BCE generates after PMIP-BCE, then asks Mobile Access Gateway to confirm whether to allow to delete PMIP-BCE, if allow, then delete PMIP-BCE, E-Packet to mobile node according to MIP-BCE; If do not allow, then ask mobile node to confirm whether to allow to delete MIP-BCE, if allow, then delete MIP-BCE, E-Packet to mobile node according to PMIP-BCE;
Mobile node is used to receive the request whether affirmation that anchor point device sends allows to delete MIP-BCE, returns corresponding results after the affirmation; Also be used to receive the message that anchor point device is sent;
Mobile Access Gateway is used to receive the request whether affirmation that anchor point device sends allows to delete PMIP-BCE, returns corresponding results after the affirmation.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, mobile node can specifically comprise:
Receiver module is used to receive Binding Update request message and the message that anchor point device is sent;
Confirm module, be used for after receiver module is received the Binding Update request message, survey mobile node whether in the local, if in the local according to the prefix information of mobile node link of living in, the binding update messages that MIP-BCE is nullified in the request that then sends confirms to allow deletion MIP-BCE to anchor point device; If stay out the township, then send binding update messages to anchor point device, MIP-BCE is upgraded in request.
In addition, Mobile Access Gateway can specifically comprise:
Receiver module is used to receive the agent binding update request message that anchor point device is sent;
Confirm module, be used for after receiver module is received the agent binding update request message, survey the link whether mobile node has left Mobile Access Gateway, if, the agent binding update messages that PMIP-BCE is nullified in the request that then sends confirms to allow deletion PMIP-BCE to anchor point device; Otherwise, sending agent binding update messages to anchor point device, PMIP-BCE is upgraded in request.
Present embodiment is confirmed the sequencing that MIP-BCE and PMIP-BCE generate earlier by the judge module of anchor point device, first forwarding module and second forwarding module are deleted affirmation according to this order to MN or MAG then, thereby delete corresponding BCE, keep correct BCE, and E-Packet to MN according to the BCE that keeps, realized the purpose that correctly E-Packets, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, improved success ratio of message forwarding.After MAG detects the link that MN do not leave MAG, thereby confirmed that the PMIP-BCE in the anchor point device is effective, sent PBU message, made anchor point device upgrade this PMIP-BCE, and realized correctly E-Packeting according to this PMIP-BCE to anchor point device.After MN detects the township that oneself stays out, thereby confirmed that the MIP-BCE in the anchor point device is effective, sent BU message, made anchor point device upgrade this MIP-BCE, and realized correctly E-Packeting according to this MIP-BCE to anchor point device.
Embodiment 9
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 21 is the structure chart of the anchor point device that provides of the embodiment of the invention 9.Referring to Figure 21, the embodiment of the invention provides a kind of anchor point device, comprising:
Receiver module is used to receive the message that mails to mobile node;
Judge module be used for judging whether that anchor point device preserves the MIP-BCE and the PMIP-BCE of mobile node, and PMIP-BCE generates after MIP-BCE;
First forwarding module, be used for judging MIP-BCE and the PMIP-BCE that anchor point device is preserved mobile node when judge module, and when PMIP-BCE generates after MIP-BCE, the request mobile node confirms whether to allow to delete MIP-BCE, if allow, then delete MIP-BCE, give mobile node according to the message that PMIP-BCE forwarding receiver module is received; If do not allow, then ask Mobile Access Gateway to confirm whether to allow to delete PMIP-BCE, if allow, then delete PMIP-BCE, E-Packet to mobile node according to MIP-BCE;
Second forwarding module, be used for judging MIP-BCE and the PMIP-BCE that anchor point device is preserved mobile node when judge module, and MIP-BCE generates after PMIP-BCE, the request Mobile Access Gateway confirms whether to allow to delete PMIP-BCE, if allow, then delete PMIP-BCE, E-Packet to mobile node according to MIP-BCE; If do not allow, then ask mobile node to confirm whether to allow to delete MIP-BCE, if allow, then delete MIP-BCE, E-Packet to mobile node according to PMIP-BCE.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, first forwarding module can specifically comprise:
Confirmation unit, be used for judging MIP-BCE and the PMIP-BCE that anchor point device is preserved mobile node when judge module, and when PMIP-BCE generates after MIP-BCE, send the Binding Update request message to mobile node, request confirms whether to allow to delete MIP-BCE and confirmation of receipt result;
Retransmission unit is used for when the affirmation result of confirmation unit reception deletes for permission, and deletion MIP-BCE gives mobile node according to the message that PMIP-BCE forwarding receiver module is received; The affirmation result who receives when confirmation unit is not when allowing to delete, and the request Mobile Access Gateway confirms whether to allow to delete PMIP-BCE, if PMIP-BCE is then deleted in permission, E-Packets to mobile node according to MIP-BCE.
Wherein, second forwarding module can specifically comprise:
Confirmation unit, be used for judging MIP-BCE and the PMIP-BCE that anchor point device is preserved mobile node when judge module, and MIP-BCE generates after PMIP-BCE, send the agent binding update request message to Mobile Access Gateway, the request Mobile Access Gateway confirms whether to allow to delete PMIP-BCE and confirmation of receipt result;
Retransmission unit, when the affirmation result who is used for receiving when confirmation unit deleted for permission, deletion PMIP-BCE E-Packeted to mobile node according to MIP-BCE; The affirmation result who receives when confirmation unit is not when allowing to delete, and the request mobile node confirms whether to allow to delete MIP-BCE, if MIP-BCE is then deleted in permission, E-Packets to mobile node according to PMIP-BCE.
Present embodiment is confirmed the sequencing that MIP-BCE and PMIP-BCE generate earlier by the judge module of anchor point device, first forwarding module and second forwarding module are deleted affirmation according to this order to MN or MAG then, thereby delete corresponding BCE, keep correct BCE, and E-Packet to MN according to the BCE that keeps, realized the purpose that correctly E-Packets, avoided selecting wrong BCE to E-Packet, and cause the situation of message dropping to take place, improved success ratio of message forwarding.
Embodiment 10
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 22 is the system construction drawing that E-Packets that the embodiment of the invention 10 provides.Referring to Figure 22, the embodiment of the invention also provides a kind of system that E-Packets, and system comprises: anchor point device, Mobile Access Gateway and mobile node, and mobile node moves to the PMIPv6 territory from non-PMIPv6 territory;
Anchor point device, be used to receive the message that mails to mobile node, and judge MIP-BCE and the PMIP-BCE that whether preserves mobile node in the anchor point device, and whether receive the agent binding update messages that comprises cancellation MIP-BCE request that Mobile Access Gateway is sent, if preserve MIP-BCE and the PMIP-BCE of MN in the anchor point device, and receive the PBU message that comprises cancellation MIP-BCE request that MAG sends, then delete MIP-BCE, and use the new PMIP-BCE that sets up according to agent binding update messages to replace PMIP-BCE, E-Packet to mobile node according to new PMIP-BCE;
Mobile Access Gateway is used to detect mobile node after on the link of Mobile Access Gateway, send comprise nullify the MIP-BCE request agent binding update messages to anchor point device;
Mobile node is used to receive anchor point device and transmits the message of coming.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Wherein, referring to Figure 16, the agent binding update messages of nullifying the MIP-BCE request that comprises that Mobile Access Gateway sends can be the agent binding update messages that sign is deleted in increase in reserved field.
Present embodiment comprises the PBU message of cancellation MIP-BCE request to anchor point device by the MAG transmission, make anchor point device deletion MIP-BCE, and set up new PMIP-BCE, thereby realized that MN (comprises the MIPv6 territory) when moving to the PMIPv6 territory from the Non-PMIPv6 territory, keep correct BCE in the anchor point device, and E-Packet to MN according to this BCE, avoided message dropping, improved success ratio of message forwarding.
Embodiment 11
In the present embodiment, anchor point device has been set up the common index of MIP-BCE and PMIP-BCE with the HoA of MN by the method among the embodiment 1.Figure 23 is the structure chart of the anchor point device that provides of the embodiment of the invention 11.Referring to Figure 23, the embodiment of the invention also provides a kind of anchor point device, when mobile node when non-PMIPv6 territory moves to the PMIPv6 territory, anchor point device comprises;
Receiver module is used to receive the message that mails to mobile node, and receives the agent binding update messages that comprises cancellation MIP-BCE request that Mobile Access Gateway is sent;
Processing module, be used for judging whether anchor point device preserves the MIP-BCE and the PMIP-BCE of mobile node, and whether receiver module receives the agent binding update messages that comprises cancellation MIP-BCE request that Mobile Access Gateway is sent, if preserve MIP-BCE and the PMIP-BCE of MN in the anchor point device, and receiver module is received the PBU message that comprises cancellation MIP-BCE request that MAG sends, then delete MIP-BCE, and use the new PMIP-BCE that sets up according to agent binding update messages to replace PMIP-BCE;
Forwarding module is used for E-Packeting to mobile node according to the new PMIP-BCE that processing module obtains.
Wherein, when anchor point device is preserved MIP-BCE and PMIP-BCE, anchor point device can judge whether the two belongs to same MN by judging the HoA that whether all includes MN among MIP-BCE and the PMIP-BCE, if all include the HoA of same MN, then MIP-BCE and PMIP-BCE belong to same MN, otherwise MIP-BCE and PMIP-BCE do not belong to same MN.
Present embodiment by anchor point device receive that MAG sends comprise the PBU message of nullifying the MIP-BCE request after, deletion MIP-BCE, and set up new PMIP-BCE, thereby realized that MN (comprises the MIPv6 territory) when moving to the PMIPv6 territory from the Non-PMIPv6 territory, keep correct BCE in the anchor point device, and E-Packet to MN according to this BCE, avoided message dropping, improved success ratio of message forwarding.
The embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, in the hard disk or buffer memory as anchor point device.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (27)

1. method of setting up MIP-BCE and the common index of PMIP-BCE is characterized in that described method comprises:
Judge whether Mobile Access Gateway obtains the home address of mobile node;
If, then described Mobile Access Gateway sends and carries the agent binding update messages of described home address to anchor point device, after described anchor point device is received as local mobile anchor, according to the home address in the described agent binding update messages, set up the proxy-mobile IP-banding cache clauses and subclauses PMIP-BCE that comprises described home address;
Otherwise, described Mobile Access Gateway sends and comprises the agent binding update messages of request for allocation to described anchor point device, after described anchor point device is received as local mobile anchor, obtain the home address of described mobile node to AAA server or the equipment of preserving the relevant information of described mobile node, set up the PMIP-BCE that comprises described home address;
Described anchor point device obtains the home address of described mobile node as home agent by binding update messages, and sets up the mobile IP-banding cache clauses and subclauses MIP-BCE that comprises described home address;
Described anchor point device with described home address as the MIP-BCE of described mobile node and the common index of PMIP-BCE.
2. the method for setting up MIP-BCE and the common index of PMIP-BCE according to claim 1 is characterized in that, the agent binding update messages that described Mobile Access Gateway transmission comprises request for allocation specifically comprises to described anchor point device:
Described Mobile Access Gateway increases new home network prefix option in agent binding update messages, asking described anchor point device is that described mobile node distributes a home address.
3. the method for setting up MIP-BCE and the common index of PMIP-BCE according to claim 1, it is characterized in that, describedly obtain the home address of described mobile node, specifically comprise to AAA server or the equipment of preserving the relevant information of described mobile node:
Described anchor point device verifies that to AAA server whether described Mobile Access Gateway is authorized to the agency as described mobile node, receives the response message that described AAA server returns;
Judge the home address that whether comprises described mobile node in the described response message, if then from described response message, extract described home address; Otherwise described anchor point device is according to the request for allocation in the described agent binding update messages, obtains the home address of described mobile node from the equipment of the relevant information of preserving described mobile node.
4. a method that E-Packets is characterized in that, described method comprises:
Anchor point device receives the message that mails to mobile node;
Judge the MIP-BCE and the PMIP-BCE that whether preserve described mobile node in the described anchor point device,, and send the Binding Update request message to described mobile node if then described anchor point device sends the agent binding update request message to Mobile Access Gateway;
After described Mobile Access Gateway is received described agent binding update request message, if detect the link that described mobile node has left described Mobile Access Gateway, the request that then sends is nullified the agent binding update messages of described PMIP-BCE to described anchor point device, after described anchor point device is received, delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node;
After described mobile node is received described Binding Update request message, if the prefix information according to link of living in detects own in the local, the request that then sends is nullified the binding update messages of MIP-BCE to described anchor point device, after described anchor point device is received, delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node.
5. the method that E-Packets according to claim 4 is characterized in that, described method also comprises:
If described Mobile Access Gateway detects the link that described mobile node does not leave described Mobile Access Gateway, then send agent binding update messages to described anchor point device, after described anchor point device is received, upgrade described PMIP-BCE, transmit described message according to the PMIP-BCE after the described renewal and give described mobile node.
6. the method that E-Packets according to claim 4 is characterized in that, described method also comprises:
If described mobile node detects the township that oneself stays out according to the prefix information of link of living in, then send binding update messages to described anchor point device, after described anchor point device is received, upgrade described MIP-BCE, transmit described message according to the MIP-BCE after the described renewal and give described mobile node.
7. the method that E-Packets according to claim 4 is characterized in that, described agent binding update request message is meant the Binding Update request message that increases agent identification in reserved field.
8. a method that E-Packets is characterized in that, described method comprises:
Anchor point device receives the message that mails to mobile node;
Judge the MIP-BCE and the PMIP-BCE that whether preserve described mobile node in the described anchor point device, and described PMIP-BCE generates after described MIP-BCE;
If preserve the MIP-BCE and the PMIP-BCE of described mobile node in the described anchor point device, and described PMIP-BCE generates after described MIP-BCE, then described anchor point device confirms whether to allow to delete described MIP-BCE to described mobile node, if allow, then described anchor point device is deleted described MIP-BCE, transmits described message according to described PMIP-BCE and gives described mobile node; If do not allow, then described anchor point device confirms whether to allow to delete described PMIP-BCE to Mobile Access Gateway, if allow, then deletes described PMIP-BCE, transmits described message according to described MIP-BCE and gives described mobile node;
If preserve the MIP-BCE and the PMIP-BCE of described mobile node in the described anchor point device, and described MIP-BCE generates after described PMIP-BCE, then described anchor point device confirms whether to allow to delete described PMIP-BCE to described Mobile Access Gateway, if allow, then described anchor point device is deleted described PMIP-BCE, transmits described message according to described MIP-BCE and gives described mobile node; If do not allow, then described anchor point device confirms whether to allow to delete described MIP-BCE to described mobile node, if allow, then deletes described MIP-BCE, transmits described message according to described PMIP-BCE and gives described mobile node.
9. the method that E-Packets according to claim 8 is characterized in that, described anchor point device confirms whether allow to delete described MIP-BCE, specifically comprise to described mobile node:
Described anchor point device sends the Binding Update request message to described mobile node, after described mobile node is received, whether surveys oneself in the local according to the prefix information of link of living in;
If in the local, then described mobile node sends the binding update messages of request cancellation MIP-BCE to described anchor point device, confirms to allow the described MIP-BCE of deletion;
If stay out the township, then described mobile node sends binding update messages to described anchor point device, and described MIP-BCE is upgraded in request.
10. the method that E-Packets according to claim 8 is characterized in that, described anchor point device confirms whether allow to delete described PMIP-BCE, specifically comprise to Mobile Access Gateway:
Described anchor point device sends the agent binding update request message to Mobile Access Gateway, after described Mobile Access Gateway is received, surveys the link whether described mobile node has left described Mobile Access Gateway;
If leave, then described Mobile Access Gateway sends the agent binding update messages of the described PMIP-BCE of request cancellation to described anchor point device, confirms to allow the described PMIP-BCE of deletion;
If do not leave, then described Mobile Access Gateway sends agent binding update messages to described anchor point device, and described PMIP-BCE is upgraded in request.
11. a method that E-Packets is characterized in that, mobile node moves to the PMIPv6 territory from non-PMIPv6 territory, and described method comprises:
Anchor point device receives the message that mails to described mobile node;
Judge whether to preserve in the described anchor point device MIP-BCE and the PMIP-BCE of described mobile node, and receive the agent binding update messages that comprises the described MIP-BCE request of cancellation that Mobile Access Gateway is sent;
If, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE, transmit described message according to described new PMIP-BCE and give described mobile node.
12. the method that E-Packets according to claim 11 is characterized in that, the described agent binding update messages of nullifying described MIP-BCE request that comprises is meant the agent binding update messages that increases the deletion sign in reserved field.
13. a system that sets up MIP-BCE and the common index of PMIP-BCE is characterized in that described system comprises Mobile Access Gateway and anchor point device;
Described Mobile Access Gateway comprises:
Judge module is used to judge whether described Mobile Access Gateway obtains the home address of mobile node;
Sending module is used for sending and carrying the agent binding update messages of described home address to described anchor point device when described judge module is judged described Mobile Access Gateway and obtained the home address of described mobile node; When described judge module is judged described Mobile Access Gateway and do not obtained the home address of described mobile node, send and comprise the agent binding update messages of request for allocation to described anchor point device;
Described anchor point device comprises:
Receiver module is used to receive agent binding update messages that carries described home address or the described agent binding update messages that comprises request for allocation that described sending module is sent;
The local mobile anchor module is used for according to the home address in the described agent binding update messages, setting up the PMIP-BCE that comprises described home address after described receiver module is received the described agent binding update messages that carries described home address; After described receiver module is received the described agent binding update messages that comprises request for allocation, obtain the home address of described mobile node to AAA server or the equipment of preserving the relevant information of described mobile node, set up the PMIP-BCE that comprises described home address;
The home agent module is used for obtaining by binding update messages the home address of described mobile node, and sets up the MIP-BCE that comprises described home address;
Module set up in index, and the described home address that is used for described local mobile anchor module and home agent module are obtained is as the MIP-BCE of described mobile node and the common index of PMIP-BCE.
14. a system that E-Packets is characterized in that described system comprises anchor point device, Mobile Access Gateway and mobile node;
Described anchor point device is used to receive the message that mails to described mobile node; When MIP-BCE that preserves described mobile node in the described anchor point device and PMIP-BCE, send the agent binding update request message to described Mobile Access Gateway, and send the Binding Update request message to described mobile node; Also be used to receive the request that described Mobile Access Gateway sends and nullify the agent binding update messages of described PMIP-BCE, or receive the binding update messages that described MIP-BCE is nullified in request that described mobile node sends; After receiving that described request is nullified the agent binding update messages of described PMIP-BCE, delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; After receiving that described request is nullified the binding update messages of described MIP-BCE, delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node;
Described Mobile Access Gateway, be used to receive the agent binding update request message that described anchor point device is sent, also be used for when detecting described mobile node and left the link of described Mobile Access Gateway, the request of transmission is nullified the agent binding update messages of described PMIP-BCE to described anchor point device;
Described mobile node is used to receive the Binding Update request message that described anchor point device is sent, and receives the message that described anchor point device is sent; Also be used for when the prefix information according to described mobile node link of living in detects oneself in the local, the request of transmission is nullified the binding update messages of MIP-BCE to described anchor point device.
15. the system that E-Packets according to claim 14, it is characterized in that, described Mobile Access Gateway also is used for when detecting described mobile node and do not leave the link of described Mobile Access Gateway, sends agent binding update messages to described anchor point device;
Correspondingly, described anchor point device also is used to receive the agent binding update messages that described Mobile Access Gateway is sent;
Described anchor point device also comprises:
Update module is used for upgrading described PMIP-BCE after described anchor point device is received described agent binding update messages.
16. the system that E-Packets according to claim 14 is characterized in that, described mobile node also is used for detecting when oneself staying out the township when the prefix information according to described mobile node link of living in, sends binding update messages to described anchor point device;
Correspondingly, described anchor point device also is used to receive the binding update messages that described mobile node is sent;
Described anchor point device also comprises:
Update module is used for upgrading described MIP-BCE after described anchor point device is received described binding update messages.
17. an anchor point device is characterized in that, described anchor point device comprises:
Receiver module, be used to receive the message that mails to mobile node, also be used to receive the request that Mobile Access Gateway sends and nullify the agent binding update messages of the PMIP-BCE of described mobile node, or receive the binding update messages that the MIP-BCE of described mobile node is nullified in request that described mobile node sends;
Sending module is used for sending the agent binding update request message to described Mobile Access Gateway, and sending the Binding Update request message to described mobile node when described anchor point device is preserved the MIP-BCE of described mobile node and PMIP-BCE;
Removing module is used for deleting described PMIP-BCE after described receiver module receives that described request is nullified the agent binding update messages of PMIP-BCE of described mobile node; After described receiver module receives that described request is nullified the binding update messages of MIP-BCE of described mobile node, delete described MIP-BCE;
Forwarding module is used for after described removing module is deleted described PMIP-BCE, transmits the message that described receiver module receives according to described MIP-BCE and gives described mobile node; After described removing module is deleted described MIP-BCE, transmit the message that described receiver module receives according to described PMIP-BCE and give described mobile node.
18. anchor point device according to claim 17 is characterized in that, described receiver module also is used to receive the agent binding update messages that described Mobile Access Gateway is sent, and correspondingly, described anchor point device also comprises:
Update module is used for upgrading described PMIP-BCE after described receiver module is received described agent binding update messages.
19. anchor point device according to claim 17 is characterized in that, described receiver module also is used to receive the binding update messages that described mobile node is sent, and correspondingly, described anchor point device also comprises:
Update module is used for upgrading described MIP-BCE after described receiver module is received described binding update messages.
20. a system that E-Packets is characterized in that described system comprises anchor point device, Mobile Access Gateway and mobile node;
Described anchor point device is used to receive the message that mails to described mobile node; Be used for also judging whether described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE; If described anchor point device is preserved the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node; If do not allow, then ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If described anchor point device is preserved the MIP-BCE and the PMIP-BCE of described mobile node, and described MIP-BCE generates after described PMIP-BCE, then ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If do not allow, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node;
Described mobile node is used to receive the request whether affirmation that described anchor point device sends allows to delete described MIP-BCE, returns corresponding results after the affirmation; Also be used to receive the message that described anchor point device is sent;
Described Mobile Access Gateway is used to receive the request whether affirmation that described anchor point device sends allows to delete described PMIP-BCE, returns corresponding results after the affirmation.
21. the system that E-Packets according to claim 20 is characterized in that, described mobile node specifically comprises:
Receiver module is used to receive Binding Update request message and the message that described anchor point device is sent;
Confirm module, be used for after described receiver module is received described Binding Update request message, whether survey described mobile node in the local according to the prefix information of described mobile node link of living in, if in the local, the binding update messages that described MIP-BCE is nullified in the request that then sends confirms to allow the described MIP-BCE of deletion to described anchor point device; If stay out the township, then send binding update messages to described anchor point device, described MIP-BCE is upgraded in request.
22. the system that E-Packets according to claim 20 is characterized in that, described Mobile Access Gateway specifically comprises:
Receiver module is used to receive the agent binding update request message that described anchor point device is sent;
Confirm module, be used for after described receiver module is received described agent binding update request message, survey the link whether described mobile node has left described Mobile Access Gateway, if, the agent binding update messages that described PMIP-BCE is nullified in the request that then sends confirms to allow the described PMIP-BCE of deletion to described anchor point device; Otherwise, sending agent binding update messages to described anchor point device, described PMIP-BCE is upgraded in request.
23. an anchor point device is characterized in that, described anchor point device comprises:
Receiver module is used to receive the message that mails to mobile node;
Judge module be used for judging whether that described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described PMIP-BCE generates after described MIP-BCE;
First forwarding module, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and when described PMIP-BCE generates after described MIP-BCE, ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit the message that described receiver module receives according to described PMIP-BCE and give described mobile node; If do not allow, then ask Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node;
Second forwarding module, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and described MIP-BCE generates after described PMIP-BCE, ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE, if allow, then delete described PMIP-BCE, transmit described message according to described MIP-BCE and give described mobile node; If do not allow, then ask described mobile node to confirm whether to allow to delete described MIP-BCE, if allow, then delete described MIP-BCE, transmit described message according to described PMIP-BCE and give described mobile node.
24. anchor point device according to claim 23 is characterized in that, described first forwarding module specifically comprises:
Confirmation unit, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and when described PMIP-BCE generates after described MIP-BCE, send the Binding Update request message to described mobile node, request confirms whether to allow to delete described MIP-BCE and confirmation of receipt result;
Retransmission unit is used for the affirmation result that receives when described confirmation unit when allowing deletion, deletes described MIP-BCE, transmits the message that described receiver module receives according to described PMIP-BCE and gives described mobile node; The affirmation result who receives when described confirmation unit is not when allowing to delete, and the request Mobile Access Gateway confirms whether to allow to delete described PMIP-BCE, if allow, then deletes described PMIP-BCE, transmits described message to described mobile node according to described MIP-BCE.
25. anchor point device according to claim 23 is characterized in that, described second forwarding module specifically comprises:
Confirmation unit, be used for judging MIP-BCE and the PMIP-BCE that described anchor point device is preserved described mobile node when described judge module, and described MIP-BCE generates after described PMIP-BCE, send the agent binding update request message to described Mobile Access Gateway, ask described Mobile Access Gateway to confirm whether to allow to delete described PMIP-BCE and confirmation of receipt result;
Retransmission unit when the affirmation result who is used for receiving when described confirmation unit deletes for permission, is deleted described PMIP-BCE, transmits described message according to described MIP-BCE and gives described mobile node; The affirmation result who receives when described confirmation unit asks described mobile node to confirm whether to allow to delete described MIP-BCE when not allowing to delete, if allow, then deletes described MIP-BCE, transmits described message to described mobile node according to described PMIP-BCE.
26. a system that E-Packets is characterized in that, described system comprises: anchor point device, Mobile Access Gateway and mobile node, and described mobile node moves to the PMIPv6 territory from non-PMIPv6 territory;
Described anchor point device, be used to receive the message that mails to described mobile node, and judge whether to preserve in the described anchor point device MIP-BCE and the PMIP-BCE of described mobile node, and receive the agent binding update messages that comprises the described MIP-BCE request of cancellation that described Mobile Access Gateway is sent, if, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE, transmit described message according to described new PMIP-BCE and give described mobile node;
Described Mobile Access Gateway is used to detect described mobile node after on the link of described Mobile Access Gateway, send comprise nullify described MIP-BCE request agent binding update messages to anchor point device;
Described mobile node is used to receive described anchor point device and transmits the described message of coming.
27. an anchor point device is characterized in that, when mobile node when non-PMIPv6 territory moves to the PMIPv6 territory, described anchor point device comprises;
Receiver module is used to receive the message that mails to mobile node, and receives the agent binding update messages that comprises the described MIP-BCE request of cancellation that Mobile Access Gateway is sent;
Processing module, be used for judging whether that described anchor point device preserves the MIP-BCE and the PMIP-BCE of described mobile node, and described receiver module receives the agent binding update messages that comprises the described MIP-BCE request of cancellation that described Mobile Access Gateway is sent, if, then delete described MIP-BCE, and use the new PMIP-BCE that sets up according to described agent binding update messages to replace described PMIP-BCE;
Forwarding module is used for transmitting described message according to the new PMIP-BCE that described processing module obtains and gives described mobile node.
CN200710162394A 2007-09-30 2007-09-30 Method, system and anchor point equipment for forwarding message Expired - Fee Related CN100596242C (en)

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CN102378284A (en) * 2011-11-23 2012-03-14 中山大学 Inter-domain switching method of proxy mobile IPv6 (Internet Protocol Version 6)
CN102595374A (en) * 2011-01-17 2012-07-18 中国电信股份有限公司 Mobility management method and system based on handover-delay IPv6 (Internet Protocol Version 6) protocol
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CN102045324A (en) * 2009-10-13 2011-05-04 中国移动通信集团公司 Data forwarding method, device and system in proxy mobile internet protocol version 6
CN102595374A (en) * 2011-01-17 2012-07-18 中国电信股份有限公司 Mobility management method and system based on handover-delay IPv6 (Internet Protocol Version 6) protocol
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WO2013044688A1 (en) * 2011-09-29 2013-04-04 中兴通讯股份有限公司 Communication method and communication system for a node which is roaming in pmip domains
CN102378284A (en) * 2011-11-23 2012-03-14 中山大学 Inter-domain switching method of proxy mobile IPv6 (Internet Protocol Version 6)
CN102378284B (en) * 2011-11-23 2014-03-19 中山大学 Inter-domain switching method of proxy mobile IPv6 (Internet Protocol Version 6)

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