CN100512525C - Fast switching method in MAP field of HMIPv6 - Google Patents

Fast switching method in MAP field of HMIPv6 Download PDF

Info

Publication number
CN100512525C
CN100512525C CNB2004100525167A CN200410052516A CN100512525C CN 100512525 C CN100512525 C CN 100512525C CN B2004100525167 A CNB2004100525167 A CN B2004100525167A CN 200410052516 A CN200410052516 A CN 200410052516A CN 100512525 C CN100512525 C CN 100512525C
Authority
CN
China
Prior art keywords
address
router
new
mobile node
map
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2004100525167A
Other languages
Chinese (zh)
Other versions
CN1784059A (en
Inventor
李竹平
王�忠
王坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinjiang high and new technology development office
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CNB2004100525167A priority Critical patent/CN100512525C/en
Publication of CN1784059A publication Critical patent/CN1784059A/en
Application granted granted Critical
Publication of CN100512525C publication Critical patent/CN100512525C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

This invention relates to a quick switching method for HMIPv6 within MAP domain. It contains affirming the switching in MAP domain by proxy router to construct new link care-of address, original access router sending switch triggering to all possible new access router which checks said care-of address and then sending local binding updating of new link care-of address, MAP buffering local binding information, MAP redirecting the database sent to mobile node according to preset strategy, the receiving, transmitting package not needing the tunnel through original router and new router. Said invention raises mobile switching speed and quality.

Description

Fast switching method in a kind of MAP territory that is used for HMIPv6
Technical field
The present invention relates to the moving communicating field of internet, in particular in mobile anchor point MAP (Mobility Anchor Point) territory, carry out fast switching method between different sub-network at mobile node under the wireless mobile environment according to HMIPv6 (classification mobile IP the 6th edition).
Background technology
Internet engineering task tissue (Internet Engineering Task Force is hereinafter to be referred as IETF) is in formal mobile IP v 6 (Mobility Support in IPv6 is called for short MIPv6) the agreement RFC3775 that proposes of in June, 2004.MIPv6 is that mobile node (Mobile Node is called for short MN) can provide the network layer support by connected reference Internet when moving.
The standard of RFC3775 definition is switched regulation, when mobile node when a field network moves to another field network, because network prefix changes, its Care-of Address (Care of Address in field network, be called for short CoA) also change thereupon, need register new CoA respectively to home agent (HomeAgent is called for short HA) and communication node (Correspondent Node is called for short CN).When mobile node moved to field network away from home network, standard is switched and had two problems: 1) switching time was long; 2) message dropping is more serious in the handoff procedure.Therefore standard is switched the requirement that can not satisfy real time business such as VoIP etc.
In order to address the above problem, the MIPv6 signaling of IETF and handover optimization working group (mipshop) have proposed several optimization handover schemes.
In the draft Hierarchical Mobile IPv6 mobilitymanagement (HMIPv6) of in June, 2004 issue, defined a kind of level MIPv6 handover scheme.This scheme is divided into not same area to contiguous IPv6 network, each territory is by one or more mobile anchor points (MobilityAnchor Point, be called for short MAP, be the router in the field network) manage, when mobile node moves into a MAP territory, obtain IP address and the subnet prefix of MAP from router advertisement, thereby generate regional care-of address (the Regional CoA of mobile node, be called for short RCoA) and on-link care-of address (On_link CoA is called for short LCoA).Mobile node is used as Care-of Address and home agent and communication node to RCoA on the one hand and is bound, on the other hand LCoA is used as that Care-of Address, RCoA are used as home address and MAP binds (promptly local binding), thereby between MAP and mobile node, set up communication tunnel, be responsible for all messages between reception and forwarding mobile node and home agent and communication node.When mobile node was mobile between the different sub-network in MAP territory, mobile node only need change LCoA and carry out this locality binding to MAP, does not need to bind again with home agent and communication node.Therefore HMIPv6 can quicken to switch, and reduces network overhead.
In the draft Fast Handovers for Mobile IPv6 (FMIPv6) of in July, 2004 issue, defined a kind of quick MIPv6 handover scheme.This scheme utilizes radio link layer to trigger, and before switching beginning, finishes the part handover operation, thereby accelerates switch speed.The basic principle of FMIPv6 is summarized as follows: mobile node is subjected to the Radio Link triggering and sends proxy router solicitation (Router Solicitation for Proxy Advertisment to the primary access router of current sub network, be called for short RtSolPr), primary access router returns agent router bulletin (the Proxy Router Advertisment of the new couple in router address that comprises request, be called for short PrRtAdv), mobile node utilization new couple in router address and interface message are constructed new Care-of Address, send quick Binding Update (Fast Bindng Update to primary access router then, be called for short FBU), primary access router sends handover trigger (the Handover Initiate that comprises above-mentioned new Care-of Address to new couple in router, be called for short HI), new couple in router is duplicate address detection (Duplicate AddressDetection to new Care-of Address, be called for short DAD), and return the switching that comprises testing result to primary access router and announce (Handover Acknowledge, be called for short HAck), to set up the bidirectional tunnel of former Care-of Address if detect successfully former router to new Care-of Address, before the Binding Update of mobile node and communication node finishes, primary access router sends to new couple in router territory by the grouping that the tunnel will send to the former Care-of Address of mobile node, mobile node is then transmitted through primary access router by reverse tunnel with the grouping that new Care-of Address sends, then the binding success of primary access router former Care-of Address of notice mobile node and new Care-of Address.Actual switching takes place in mobile node, disconnects former subnet and connects, and inserts new subnet, sends quick neighbours' bulletin (Fast NeighborAdvertisment is called for short FNA) notice new router switching then immediately and finishes.
HMIPv6 and FMIPv6 switch standard from different perspectives respectively and optimize, and the suitable combination of the two certainly will produce more excellent switching effect.But directly in HMIPv6, use FMIPv6 and have delay and bandwidth efficiency problem, this be because, the general convergence router of selecting to be positioned on the couple in router is MAP in HMIPv6, if directly use FMIPv6 this moment, mobile node just must be transmitted through double tunnel with communicating by letter of the external world between transfer period, at first being the tunnel of MAP and primary access router, is the tunnel between primary access router and new couple in router then.
Therefore, there is defective in prior art, and awaits improving and development.
Summary of the invention
The purpose of this invention is to provide fast switching method in the MAP territory of a kind of HMIPv6 of being used for, avoid HMIPv6 and FMIPv6 directly to combine under the situation, mobile node must be transmitted the problem that causes switching delay and bandwidth availability ratio to descend through double tunnel with communicating by letter of the external world between transfer period; Simultaneously, because the mobile hand-held device resource is generally relatively more nervous, the quick switching in the MAP territory of the inventive method realization HMIPv6 to improve the switch speed of MIPv6 under wireless mobile environment, reduces the expense of the mobile management aspect of mobile node simultaneously.
Technical scheme of the present invention is as follows:
Fast switching method in a kind of MAP territory that is used for HMIPv6 said method comprising the steps of:
When switching between the different sub-network in the MAP territory of mobile node at HMIPv6, mobile node only need be constructed new on-link care-of address and be carried out local Binding Update to MAP, and mobile node is before switching generation:
A) utilize proxy router solicitation and agent router bulletin to confirm to obtain new couple in router address and interface message between primary access router and the mobile node, mobile node utilizes described new couple in router address and the new on-link care-of address of interface message structure;
B) primary access router sends handover trigger to new couple in router, new couple in router is upchecked behind the new on-link care-of address, send the local Binding Update of new on-link care-of address immediately to MAP, the local binding information of MAP buffer memory comprises the binding of regional care-of address and one or more on-link care-of addresses and the user mode of on-link care-of address;
C) after MAP this locality was bound successfully, the policy redirection that utilizes local binding form basis to be scheduled to mail to the packet of mobile node, and the transmitting-receiving bag of mobile node no longer needs through the tunnel between primary access router and new couple in router;
D) described new couple in router returns to primary access router and switches bulletin, if switching, mobile node inserts the new subnet of prediction within the effective time of Binding Update regulation, mobile node sends quick neighbours and announces to switch to new couple in router notice and finish, new couple in router sends to mobile node with the grouping of buffer memory, and will substitute mobile node and periodically send local Binding Update to MAP, MAP will correspondingly upgrade the local binding information of buffer memory; Otherwise this locality binding on the new couple in router on on-link care-of address, grouping and the MAP of buffer memory will be timed deletion.
Described method, wherein, described step a) also comprises:
A1) described mobile node receives the trigger message from radio link layer, the link layer address that comprises new WAP (wireless access point) in the trigger message, mobile node sends proxy router solicitation to the primary access router of current connection, asks the couple in router address and the new subnet prefix information of new WAP (wireless access point) correspondence;
A2) after primary access router was received the request of mobile node, the route-map of inquiry new access point correspondence from the neighbor router of local cache and access-in point information returned the agent router bulletin to the mobile node of primary access router;
A3) described mobile node forms new Care-of Address according to the agent router bulletin, sends quick Binding Update to primary access router then.
Described method, wherein, described step b) also comprises:
B1) if new couple in router exists and belongs to a MAP territory with primary access router, described primary access router sends the handover trigger of band M sign to new couple in router, except the mobile node link address that comprises the FMIPv6 regulation, former on-link care-of address, new on-link care-of address, also comprise the regional care-of address of mobile node in the handover trigger;
B2) described new couple in router is received the handover trigger of band M sign, check the validity of new on-link care-of address in the handover trigger, and adjacent machine is acted on behalf of new on-link care-of address in the time of appointment; If on-link care-of address is invalid and new couple in router can not distribute new on-link care-of address, new couple in router is established to the main frame route of former on-link care-of address;
B3) described new couple in router sends local Binding Update to MAP, if new on-link care-of address inspection or be allocated successfully, in the local Binding Update message, new on-link care-of address is placed alternative Care-of Address mobile option, regional care-of address places the home address option; Otherwise, former on-link care-of address is placed alternative Care-of Address mobile option, the new region Care-of Address places the home address option;
B4) described MAP writes down the couple in router address that sends local Binding Update after receiving local Binding Update, and regional care-of address and on-link care-of address are bound, and described MAP safeguards these information in local binding information table;
B5) described MAP returns the binding bulletin to new couple in router.
Described method, wherein, described step c) also comprises:
C1) described MAP is local utilizes local binding information table to be redirected the grouping of mailing to mobile node after bind successfully, directly passes through the MAP forwarding from the grouping that mobile node sends.
Described method, wherein, described step d) also comprises:
D1) described new couple in router returns the switching bulletin that band M indicates to primary access router after receiving MAP binding notice;
D2) after primary access router is received the switching bulletin of band M sign, no longer set up the tunnel from former router to new couple in router of FMIPv6 regulation, and stop to send periodic local Binding Update to MAP, return the FBack that band M indicates to mobile node, notice is the result of binding fast;
D3) mobile node switches to new subnet in the effective time that limits, and sends quick neighbours' bulletin to the couple in router of new subnet;
D4) after the couple in router of new subnet is received quick neighbours' bulletin of band M sign, delete the adjacent machine agency of new on-link care-of address, create the grouping that can reach adjacent machine buffer memory, forwarding cache, the former on-link care-of address main frame route that order exists comes into force, and send the local Binding Update of new on-link care-of address to MAP, the described operation cycle property ground that sends the local Binding Update of new on-link care-of address to MAP carries out shifting out subnet up to mobile node;
D5) described MAP receive with local binding information table in behind all identical local Binding Update of repetition of the source address, on-link care-of address, the regional care-of address that write down, think that mobile node has inserted new subnet, revise the state of on-link care-of address in the local Binding Update information, and return local binding bulletin; If mobile node does not switch to new subnet in the time that limits, the information that the relevant mobile node of buffer memory switches on MAP and the new couple in router will be deleted after the time that limits.
Described method, wherein, described local binding information table is described as: handle the information of safeguarding in addition on the information needed basis at the home agent Binding Update that RFC3775 requires, the binding relationship that comprises each regional care-of address and one or more on-link care-of addresses participates in the on-link care-of address of binding to each:
(1) with a current state of Status Flag bit-identify on-link care-of address, the former on-link care-of address of the current use of state 1 expression mobile node, the new on-link care-of address that may use after state 2 expression mobile nodes switch, MAP only sends the binding refresh requests to the on-link care-of address of state 1;
(2) send the couple in router that on-link care-of address is bound with local binding agent couple in router record.
Described method wherein, the handover trigger of described FMIPv6, is switched bulletin, FBack, fast in neighbours' bulletin, is defined that a certain position is the M flag bit in the remaining reservation flag position.
Described method, wherein, described reservation flag position minimum for being made as the M flag bit.
Fast switching method in a kind of MAP territory that is used for HMIPv6 provided by the present invention has adopted the method for HMIPv6 in conjunction with FMIPv6, to improve switch speed and the quality that mobile node moves in a MAP territory; The inventive method has made full use of the local Binding Update of couple in router proxy mobile node, has reduced the expense of the mobile management of mobile node under HMIPv6 mechanism; And made full use of MAP and be redirected the grouping of mailing to mobile node, eliminated the time delay and the bandwidth consumption that bring in multiple tunnel, thus, the inventive method has improved mobile switch speed and the quality of mobile node in a MAP territory.
Description of drawings
Fig. 1 is the application scenarios schematic diagram of the inventive method;
Fig. 2 is the basic messae flow process figure that the mobile node of the inventive method switches in the MAP territory of HMIPv6 fast;
Fig. 3 is the HI message format schematic diagram of the inventive method;
Fig. 4 is the HAck message format schematic diagram of the inventive method;
Fig. 5 is the Fback message format schematic diagram of the inventive method;
Fig. 6 is the FNA message format schematic diagram of the inventive method;
Fig. 7 is that the MAP of the inventive method goes up local binding information hoist pennants.
Embodiment
Be described in further detail below in conjunction with the basic enforcement of accompanying drawing technical scheme:
The characteristics of the inventive method are that HMIPv6 is used in combination with FMIPv6 to quicken switching, the local Binding Update function of mobile node and MAP are transferred on the couple in router, to reduce the mobile management expense of mobile node.
Fast switching method in the MAP territory that is used for HMIPv6 of the present invention, as shown in Figure 1, when switching between the different sub-network in the MAP territory of mobile node at HMIPv6, according to HMIPv6, mobile node only need be constructed new LCoA and be carried out local Binding Update to MAP.Mobile node at first utilized RtSolPr/PrRtAdv to confirm to switch before switching generation and will occur in the MAP territory, construct new LCoA, primary access router sends HI to all possible new couple in router then, new couple in router is upchecked behind the new LCoA, send the local Binding Update of new LCoA immediately to MAP, the MAP buffer memory local binding information, comprise user mode RCoA and bindings one or more LCoA and LCoA, the former LCoA of the current use of state 1 expression mobile node, the new LCoA that may use after state 2 expression mobile nodes switch.After MAP binds successfully in this locality, utilize local binding form to be redirected the packet that mails to mobile node according to certain strategy, the transmitting-receiving bag of mobile node no longer needs the tunnel between process primary access router and new couple in router.New couple in router returns HAck to primary access router.If switching, mobile node inserts the new subnet of prediction within the effective time of Binding Update regulation, mobile node sends FNA and notifies switching to finish to new router, new couple in router sends to mobile node with the grouping of buffer memory, and will substitute mobile node and periodically send local Binding Update to MAP, MAP will correspondingly upgrade the local binding information of buffer memory.Otherwise this locality binding on the new router on the LCoA of buffer memory, grouping and the MAP will be timed deletion.
Concrete job step of the present invention is illustrated in figure 2 as:
Step 1, as shown in Figure 1, mobile node receives the trigger message from radio link layer, the link layer address that comprises new WAP (wireless access point) in the trigger message, mobile node sends RtSolPrl to the primary access router of current connection, asks information such as the couple in router address of new WAP (wireless access point) correspondence and new subnet prefix.
Step 2, after primary access router is received the RtSolPrl request of mobile node, former WAP (wireless access point) link layer address that carries according to RtSolPr and new WAP (wireless access point) link layer address, inquire about the neighbours' radio link layer and the IP layer address information of local cache, obtain link layer address, IP address and the subnet prefix of the new couple in router of new WAP (wireless access point) correspondence.The mobile node of constructing message PrRtAdv2 at last and sending to primary access router is handled.
Step 3, mobile node according to PrRtAdv2 after, the new Care-of Address LCoA of new router subnet prefix structure that carries according to PrRtAdv sends the FBU3 of structure then to primary access router.
Step 4, after primary access router is received FBU3, the new LCoA that carries according to FBU3, the MAP domain information of neighbours' couple in router of inquiry local cache, judge that new couple in router and primary access router belong to same MAP territory, handle so construct HI (M) 4 and send to new couple in router, as shown in Figure 3.If new couple in router exists and belongs to a MAP territory with primary access router, primary access router sends the HI message of band M sign to new couple in router, mobile node link address, former LCoA, new LCoA address except comprising that FMIPv6 stipulates in the HI message, the RCoA that also comprises mobile node, this is searching conveniently when carrying out local binding in the back for MAP.Otherwise follow-up all processes will be by the carrying out of FMIPv6 regulation.
For this reason, need to improve the HI message of FMIPv6.Whether a certain position is the M position in remaining 14 the reservation flag positions of definition HI, and for example defining lowest order is the M position, occur in the same MAP territory with moving of M bit-identify mobile node, and message format as shown in Figure 3.Owing to defined the IP address option form among the HMIPv6, so need only contents processing being the IP address option (sub-Type of IP address option equals 0) of RCoA, the transmission of HI message and receiving terminal get final product, need not define new choice format.
Step 5, after new couple in router is received the HI (M) 4 of band M sign, the processing of mainly finishing is to check the validity of carrying new LCoA among the HI (M), and adjacent machine is acted on behalf of new LcoA in the time of appointment: if new LCoA is effective, perhaps new LCoA is invalid but can distribute another new LCoA, then creates the adjacent machine bulletin of the agency of new LCoA clauses and subclauses; If new LCoA is invalid and new router is distributed new LCoA failure, the former LCoA and the mobile node link address that then utilize HI (M) to carry, new router is created a main frame route entry to former LCoA.The mobile node RCoA that utilizes HI (M) to carry at last, structure message LBU5, wherein specifying new LCoA is Care-of Address, RCoA is a home address, and sends to MAP and handle.
Step 6, new couple in router sends local Binding Update to MAP, after MAP receives LBU5, carries out local Binding Update, and safeguards local binding information table, as shown in Figure 7, is set to 0 with the state of the new LCoA of RCoA binding.Construct LBA6 at last and send to new couple in router and handle.If new LCoA checks or is allocated successfully, in the local Binding Update message, new LCoA is placed alternative Care-of Address mobile option (Alternate Care-of Address Mobility Option), and RCoA places home address option (Home Address Option); Otherwise, former LCoA is placed alternative Care-of Address mobile option (Alternate Care-of Address Mobility Option), new RCoA places home address option (Home Address Option).
Step 7 after new couple in router is received LBA6, is carried out the processing relevant with local Binding Update, and the HAck (M) 7 that indicates of structural belt M then as shown in Figure 5, and sends to primary access router and handles.MAP writes down the couple in router address that sends local Binding Update after receiving local Binding Update, and RCoA and LCoA are bound, and a RCoA can bind two or more Different L CoA simultaneously.MAP safeguards these information in local binding information table.
Description to local binding information table: be to handle the information of safeguarding in addition on the information needed basis, comprise the binding relationship of each RCoA and one or more LCoA, each is participated in the LCoA of binding at the home agent Binding Update that RFC3775 requires:
(1) with a current state of Status Flag bit-identify LCoA, the former LCoA of the current use of state 1 expression mobile node, the new LCoA that may use after state 2 expression mobile nodes switch, MAP only sends binding refresh requests (Binding Refresh Request) to the LCoA of state 1.
(2) send the couple in router that LCoA binds with local binding agent couple in router record.
This locality tie up order information table form as shown in Figure 7.
Step 8, MAP returns the binding bulletin to new couple in router.
Step 9 utilizes local binding information table to be redirected the grouping of mailing to mobile node after MAP binds successfully in this locality.Directly transmit from the grouping that mobile node sends, so the transmitting-receiving bag of mobile node no longer needs through the tunnel between primary access router and new couple in router through MAP.
Step 10, new couple in router are returned the HAck of band M sign to primary access router after receiving MAP binding notice.
For this reason, need to improve the HAck message of FMIPv6.Whether a certain position in remaining 13 the reservation flag positions of definition HAck is the M position, and for example defining lowest order is the M position, occur in the same MAP territory with moving of M sign mobile node, and message format as shown in Figure 4.
Step 11, after primary access router is received the HAck (M) 7 of band M sign, no longer set up the tunnel from former router to new router of FMIPv6 regulation, and stop to the periodic local Binding Update of MAP transmission to former LCoA, also no longer respond the Binding Update request that MAP sends, return the FBack (M) 8 that band M indicates to mobile node, form is notified the result of binding fast as shown in Figure 4.
For this reason, need to improve the FBack message of FMIPv6.A certain position in remaining 7 the reservation flag positions of definition FBack is the M position, and for example defining lowest order is the M position, whether occurs in the same MAP territory message format such as accompanying drawing 5 with the mobile of M sign mobile node.
After step 12, mobile node receive FBAck (M) 8, in the effective time that limits, switch to new subnet, in case be connected on the subnet of new couple in router, the FNA (M) 9 of structural belt M sign immediately, form as shown in Figure 6, and send to new couple in router and handle.
For this reason, need to improve the FNA message of FMIPv6.Whether a certain position in 16 reservation flag positions of definition HI is the M position, and for example defining lowest order is the M position, occur in the same MAP territory with moving of M sign mobile node, and message format as shown in Figure 6.
After step 13, new couple in router are received the FNA (M) 9 of band M sign, delete the adjacent machine agency of new LCoA, create the grouping that new LCoA can reach adjacent machine buffer memory, forwarding cache, if to former LCoA main frame route existence then make it come into force; Then, beginning is shifted out this subnet to the local Binding Update that MAP periodically sends new LCoA up to mobile node.
Step 14, MAP receive with local binding information table in behind all identical local Binding Update of repetition of the source address, LCoA, the RCoA that write down, think that mobile node has inserted new subnet, revise the state of LCoA in the local Binding Update information, and return local binding bulletin.
In addition, if mobile node does not switch to new subnet in the time that limits, the information that the relevant mobile node of buffer memory switches on MAP and the new couple in router will be deleted after the time that limits.
What the inventive method proposed is a kind of in the HMIPv6 administrative model, mobile node fast switch over method when mobile between different sub-network in same MAP territory, the inventive method and general HMIPv6+FMIPv6 method difference are: the local binding function between the LCoA of mobile node and the RCoA is responsible for finishing by couple in router, like this when the different sub-network internetwork roaming of mobile node in same MAP territory, the switch speed and the quality of mobile node are improved, and have avoided the caused expense of the periodic local Binding Update of mobile node.
Should be understood that above-mentioned description at specific embodiment of the present invention is too concrete, can not therefore be interpreted as the restriction of asking for protection scope to of the present invention, scope of patent protection should be as the criterion with claims.

Claims (8)

1, fast switching method in a kind of mobile anchor point MAP territory that is used for HMIPv6 said method comprising the steps of:
When switching between the different sub-network in the MAP territory of mobile node at HMIPv6, mobile node only need be constructed new on-link care-of address and be carried out local Binding Update to MAP:
A) mobile node is before switching generation, utilize proxy router solicitation and agent router bulletin to obtain new couple in router address and interface message between primary access router and the mobile node, mobile node utilizes described new couple in router address and the new on-link care-of address of interface message structure;
B) primary access router sends handover trigger to new couple in router, new couple in router is upchecked behind the new on-link care-of address, send the local Binding Update of new on-link care-of address immediately to MAP, the local binding information of MAP buffer memory comprises the binding of regional care-of address and one or more on-link care-of addresses and the user mode of on-link care-of address;
C) after MAP this locality was bound successfully, the policy redirection that utilizes local binding form basis to be scheduled to mail to the packet of mobile node, and the transmitting-receiving bag of mobile node no longer needs through the tunnel between primary access router and new couple in router;
D) described new couple in router returns to primary access router and switches bulletin, if switching, mobile node inserts the new subnet of prediction within the effective time of Binding Update regulation, mobile node sends quick neighbours and announces to switch to new couple in router notice and finish, new couple in router sends to mobile node with the grouping of buffer memory, and will substitute mobile node and periodically send local Binding Update to MAP, MAP will correspondingly upgrade the local binding information of buffer memory; Otherwise this locality binding on the new couple in router on on-link care-of address, grouping and the MAP of buffer memory will be timed deletion.
2, method according to claim 1 is characterized in that, described step a) also comprises:
A1) described mobile node receives the trigger message from radio link layer, the link layer address that comprises new WAP (wireless access point) in the trigger message, mobile node sends proxy router solicitation to the primary access router of current connection, asks the couple in router address and the new subnet prefix information of new WAP (wireless access point) correspondence;
A2) after primary access router was received the request of mobile node, the route-map of inquiry new access point correspondence from the neighbor router of local cache and access-in point information returned the agent router bulletin to the mobile node of primary access router;
A3) described mobile node forms new Care-of Address according to the agent router bulletin, sends quick Binding Update to primary access router then.
3, method according to claim 2 is characterized in that, described step b) also comprises:
B1) if new couple in router exists and belongs to a MAP territory with primary access router, described primary access router sends the handover trigger of band M sign to new couple in router, except the mobile node link address that comprises the FMIPv6 regulation, former on-link care-of address and new on-link care-of address, also comprise the regional care-of address of mobile node in the handover trigger;
B2) described new couple in router is received the handover trigger of band M sign, check the validity of new on-link care-of address in the handover trigger, and adjacent machine is acted on behalf of new on-link care-of address in the time of appointment; If on-link care-of address is invalid and new couple in router can not distribute new on-link care-of address, new couple in router is established to the main frame route of former on-link care-of address;
B3) described new couple in router sends local Binding Update to MAP, if new on-link care-of address inspection or be allocated successfully, in the local Binding Update message, new on-link care-of address is placed alternative Care-of Address mobile option, regional care-of address places the home address option; Otherwise, former on-link care-of address is placed alternative Care-of Address mobile option, the new region Care-of Address places the home address option;
B4) described MAP writes down the couple in router address that sends local Binding Update after receiving local Binding Update, and regional care-of address and on-link care-of address are bound, and described MAP safeguards these information in local binding information table;
B5) described MAP returns the binding bulletin to new couple in router.
4, method according to claim 3 is characterized in that, described step c) also comprises:
C1) described MAP is local utilizes local binding information table to be redirected the grouping of mailing to mobile node after bind successfully, directly passes through the MAP forwarding from the grouping that mobile node sends.
5, method according to claim 4 is characterized in that, described step d) also comprises:
D1) described new couple in router returns the switching bulletin that band M indicates to primary access router after receiving MAP binding notice;
D2) after primary access router is received the switching bulletin of band M sign, no longer set up the tunnel from former router to new couple in router of FMIPv6 regulation, and stop to send periodic local Binding Update to MAP, return the quick binding acknowledgement FBack that band M indicates to mobile node, notice is the result of binding fast;
D3) mobile node switches to new subnet in the effective time that limits, and sends quick neighbours' bulletin to the couple in router of new subnet;
D4) after the couple in router of new subnet is received quick neighbours' bulletin of band M sign, delete the adjacent machine agency of new on-link care-of address, establishment can reach adjacent machine buffer memory, and the grouping of forwarding cache, the former on-link care-of address main frame route that order exists comes into force, and send the local Binding Update of new on-link care-of address to MAP, the described operation cycle property ground that sends the local Binding Update of new on-link care-of address to MAP carries out shifting out subnet up to mobile node;
D5) described MAP receive with local binding information table in behind all identical local Binding Update of repetition of the source address, on-link care-of address and the regional care-of address that write down, think that mobile node has inserted new subnet, revise the state of on-link care-of address in the local Binding Update information, and return local binding bulletin; If mobile node does not switch to new subnet in the time that limits, the information that the relevant mobile node of buffer memory switches on MAP and the new couple in router will be deleted after the time that limits.
6, method according to claim 3, it is characterized in that, described local binding information table is described as: handle the information of safeguarding in addition on the information needed basis at the home agent Binding Update that RFC3775 requires, the binding relationship that comprises each regional care-of address and one or more on-link care-of addresses participates in the on-link care-of address of binding to each:
(1) with a current state of Status Flag bit-identify on-link care-of address, the former on-link care-of address of the current use of state 1 expression mobile node, the new on-link care-of address that may use after state 2 expression mobile nodes switch, MAP only sends the binding refresh requests to the on-link care-of address of state 1;
(2) send the couple in router that on-link care-of address is bound with local binding agent couple in router record.
7, according to the described method of the arbitrary claim of claim 3～6, it is characterized in that, the handover trigger of described FMIPv6, switch bulletin, binding acknowledgement FBack and fast in neighbours' bulletin fast, define that a certain position is the M flag bit in the remaining reservation flag position.
8, method according to claim 7 is characterized in that, the lowest order of described reservation flag position is made as the M flag bit.
CNB2004100525167A 2004-11-29 2004-11-29 Fast switching method in MAP field of HMIPv6 Expired - Fee Related CN100512525C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100525167A CN100512525C (en) 2004-11-29 2004-11-29 Fast switching method in MAP field of HMIPv6

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100525167A CN100512525C (en) 2004-11-29 2004-11-29 Fast switching method in MAP field of HMIPv6

Publications (2)

Publication Number Publication Date
CN1784059A CN1784059A (en) 2006-06-07
CN100512525C true CN100512525C (en) 2009-07-08

Family

ID=36773719

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100525167A Expired - Fee Related CN100512525C (en) 2004-11-29 2004-11-29 Fast switching method in MAP field of HMIPv6

Country Status (1)

Country Link
CN (1) CN100512525C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101051986B (en) * 2006-05-15 2010-04-07 华为技术有限公司 Method and device for realizing quick switch
CN101005444B (en) * 2006-06-24 2011-12-07 华为技术有限公司 Method and device for quick switching
CN100596101C (en) * 2006-08-31 2010-03-24 华为技术有限公司 Packet routing method and system of local mobility management network
KR101088668B1 (en) * 2007-02-13 2011-12-01 닛본 덴끼 가부시끼가이샤 Movement managing system, home agent, mobile terminal managing method used for them, and computer-readable medium embodying its program
CN101247314B (en) * 2007-02-15 2013-11-06 华为技术有限公司 Routing optimization method, proxy mobile media PMA and packet transmission system
CN101471964B (en) * 2007-12-27 2011-11-02 华为技术有限公司 Method for distributing network address, network system and network node
CN101330460B (en) * 2008-05-13 2011-05-18 武汉理工大学 New construction model and routing method for mobile IP
CN101594609B (en) * 2008-05-27 2012-08-08 华为技术有限公司 Method, system and node for maintaining continuous conversation during switching among different domains
CN101605319B (en) * 2008-06-12 2013-04-17 华为技术有限公司 State-switching information-processing method, movable access gateway and movable terminal
CN101355498B (en) * 2008-08-01 2011-09-21 中国联合网络通信集团有限公司 Method and system for pre-configuring forwarding address base on neighbor picture
CN101902725B (en) * 2009-05-26 2013-01-30 中国科学院计算技术研究所 Mobile communication system and mobility management method
CN101695160B (en) * 2009-10-20 2012-05-23 清华大学 Stream directional transmission method based on strategy route
CN103747495B (en) * 2014-01-02 2017-06-27 湖南大学 A kind of hybrid fast switch over method for being adapted to mobile WiMAX network
CN105263115B (en) * 2015-10-30 2018-10-19 宁波大学 FMIPv6 switching methods based on moving projection
CN105592415B (en) * 2015-11-04 2019-06-07 宁波大学 Low consumption FMIPv6 switching method based on moving projection
CN105515969B (en) * 2015-12-03 2018-11-20 华为技术有限公司 A kind of method and apparatus for establishing link and a kind of method and apparatus for sending notice
CN108347723B (en) 2017-01-25 2021-01-29 华为技术有限公司 Switching method and device

Also Published As

Publication number Publication date
CN1784059A (en) 2006-06-07

Similar Documents

Publication Publication Date Title
CN100512525C (en) Fast switching method in MAP field of HMIPv6
CN100596095C (en) Hierarchical mobility IPv6 rapid switching method and system
KR100582731B1 (en) Method for exchanging message of mobile node in mobile ipv6 network
CN101621785B (en) Registration, communication and switching method of mobile nodes and device thereof
CN101383755B (en) Proxy mobile IPv6 switching method and related network entity
US20100103876A1 (en) Mobile terminal and communication management device
CN101005444B (en) Method and device for quick switching
JP4644033B2 (en) Access router apparatus, mobility control system, and mobility control method
Haseeb et al. Handoff latency analysis of mobile IPv6 protocol variations
CN101115022B (en) Apparatus and method for implementing node to roaming in IPv6 network
JP4532311B2 (en) Mobile communication control apparatus, mobile communication control system and method
CN102883298B (en) The method and Mobile Access Gateway of mobile management
CN101043350B (en) Mobile multicasting method for multiple interfaces
JP2007281721A (en) Mobile communication control method, and mobile communication system and router
KR20040073843A (en) Method for fast handover in mobile IP network
Boutabia et al. MIH-based FMIPv6 optimization for fast-moving mobiles
CN101111058A (en) Method and system for preventing package loss in switching course
KR101018856B1 (en) Apparatus and method of packet forwarding for handoff in wireless access network
KR101225640B1 (en) AN ENHANCED ROUTE OPTIMIZATION SCHEME FOR MUTIPLE LMAs IN PMIPv6 DOMAIN
KR102230823B1 (en) Context-aware traffic route optimization management method
Moon et al. Reducing handover delay in mobile ipv6 by cooperating with layer 2 and layer 3 handovers
Van Nguyen et al. A modification for fast handover in hierarchical mobile IPv6
Wu et al. Comparison of different mobility management schemes for reducing handover latency in Mobile IPv6
CN101742485B (en) Method and device for transmitting data
Tripathi et al. A comparative study on IPv6 based mobility management protocols

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: JINJIANG HIGH-TECH DEVELOPMENT OFFICE

Free format text: FORMER OWNER: ZTE CORPORATION

Effective date: 20131107

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 518057 SHENZHEN, GUANGDONG PROVINCE TO: 362200 QUANZHOU, FUJIAN PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20131107

Address after: Jinjiang City, Fujian province 362200 Chongde road Quanzhou City No. 283 friends Jade Technology Building

Patentee after: Jinjiang high and new technology development office

Address before: 518057 Nanshan District, Guangdong high tech Industrial Park, science and Technology Industrial Park, ZTE building, block A, layer 6, layer

Patentee before: ZTE Corporation

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090708

Termination date: 20161129