CN101572665A - IPv6 over IPv4 tunnel switching method and device - Google Patents
IPv6 over IPv4 tunnel switching method and device Download PDFInfo
- Publication number
- CN101572665A CN101572665A CNA2009100858172A CN200910085817A CN101572665A CN 101572665 A CN101572665 A CN 101572665A CN A2009100858172 A CNA2009100858172 A CN A2009100858172A CN 200910085817 A CN200910085817 A CN 200910085817A CN 101572665 A CN101572665 A CN 101572665A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- priority
- message
- current priority
- current
- 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.)
- Granted
Links
Images
Abstract
The invention discloses an IPv6 over IPv4 tunnel switching method and a device. The method includes: a tunnel source device calculates initial priority of each tunnel according to preset IPv6 over IPv4 tunnel priority calculation rule; when the tunnel source device is about to send an IPv6 message, available tunnels capable of transporting the message are searched, and the IPv6 message is sent by the tunnel with the highest priority in the available tunnels; and when the tunnel source device receives an ICMPv4 unreachable message direct to the selected tunnel, the current priority of the tunnel is reduced. The invention realizes the IPv6 over IPv4 tunnel switching.
Description
Technical field
The present invention relates to the tunneling technique field, be specifically related to IPv6over IPv4 tunnel switching method and equipment.
Background technology
IPv6over IPv4 tunneling mechanism is to encapsulate the IPv4 heading before the IPv6 data message, makes the IPv6 message pass through the IPv4 network by the tunnel, realizes the interoperability methods of the IPv6 network of isolation.
Fig. 1 passes through the schematic diagram of IPv4 network for existing IPv6 message by IPv6over IPv4 tunnel, and as shown in Figure 1, its process is as follows:
01, the equipment in the IPv6 network sends the IPv6 message, arrives the source end equipment in tunnel.
02, the source end equipment in tunnel judges that according to routing table this message will transmit by IPv6over IPv4 tunnel, IPv4 heading in the encapsulation before the IPv6 message, the local interface IPv4 address of appointment when the source address in the IPv4 heading is configured tunneling technique, the actual physical interfaces by the tunnel forwards message then.
03, encapsulated message arrives tunnel destination equipment by the tunnel, and destination equipment carries out decapsulation to message after judging that the IPv4 destination of this encapsulated message is this equipment.
04, the destination address of the IPv6 message of destination equipment in tunnel after according to decapsulation is transmitted message; If the IPv6 destination is exactly this equipment, then the IPv6 message is given to upper-layer protocol and is handled.
Wherein the encapsulation process of step 02 according to the obtain manner of destination IP v4 address, tunnel, is divided into the tunnel manual tunnel and automatic tunnel two big classes again.Manual tunnel is exactly fixing destination IP v4 address of configuration, connects thereby set up fixing tunnel.Automatic tunnel then is to obtain destination IP v4 address from the destination address of IPv6 message, is the on-fixed tunnel that triggers with message.
In specific implementation, the tunnel is as a kind of logic interfacing, as long as configuration is correct, then this interface can show as the state that the IPv6 route can be used always.When faults such as route is unreachable appear in the tunnel in the IPv4 Network Transmission, because IPv4 and IPv6 are two kinds of independently protocol stacks, the IPv4 network failure can't be notified the IPv6 network, from the IPv6 routing table, this tunnel links remains available, switch thereby can not produce normal route, produce problems such as packet loss thus.
At present, when IPv4 forwarded routing issue occurring, can produce the unreachable message of ICMPv4 to the tunnel source end on the IPv4 router, the structure of this message is as shown in table 1:
| IPv4 head: destination address=tunnel source end IPv4 address |
| The ICMP head |
| Original message part: the IPv6 message of encapsulation IPv4 head |
The unreachable message structure of table 1ICMPv4
After the tunnel source end is received the unreachable message of ICMPv4, can analyze IPv6 message wherein, produce the unreachable message of ICMPv6, send to the source address corresponding device of initial IP v6 message.
The shortcoming of said method is as follows:
The IPv4 router that moves on present many networks is when producing the unreachable message of ICMPv4, only keep 28 bytes in the original message part, be 8 bytes that the IPv4 head adds the data part, finally can cover transmission control protocol (TCP, Transferring Control Protocol)/source port and the destination interface of User Datagram Protoco (UDP) (UDP, User Datagram Protocol).But under the situation of tunnel encapsulation, 8 bytes do not cover the address part of IPv6 head, when so just causing the tunnel source end to receive the unreachable message of IPv4, can't parse initial IP v6 source address, just can't send the unreachable message of ICMPv6 yet.
Secondly for the IPv6 main frame, even received the unreachable message of ICMPv6, the action that can take is to provide information or stop to give out a contract for a project in user interface, can not directly switch route.
Summary of the invention
The invention provides IPv6over IPv4 tunnel switching method and equipment, switch to realize IPv6over IPv4 tunnel.
Technical scheme of the present invention is achieved in that
A kind of IPv6over IPv4 tunnel switching method, tunnel source end equipment is according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, and this method comprises:
When tunnel source end equipment will send the IPv6 message, search the available tunnel that can transmit this message, in available tunnel, select the highest tunnel of current priority to send this IPv6 message;
When tunnel source end equipment receives the unreachable message of ICMPv4 at selected tunnel, the current priority in this tunnel is reduced.
When tunnel source end equipment received the unreachable message of article one ICMPv4 at selected tunnel, described method further comprised:
Tunnel source end equipment sends query messages by selected tunnel to the tunnel opposite equip. every scheduled duration, whenever receives the response message that a tunnel opposite equip. returns, with the current priority rising in this tunnel.
Described tunnel source end equipment receives at further comprising before the current priority reduction after the unreachable message of the ICMPv4 in selected tunnel, with this tunnel:
Tunnel source end equipment judges whether the current priority in selected tunnel equals default lowest priority, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel is reduced.
Described tunnel source end equipment receives after the response message that a tunnel opposite equip. returns, further comprise before the current priority in this tunnel is raise:
Tunnel source end equipment judges whether the current priority in selected tunnel equals the initial priority in this tunnel, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel that raises.
Described tunnel source end equipment receives at the unreachable message of the ICMPv4 in selected tunnel and comprises:
Tunnel source end equipment receives the unreachable message of ICMPv4, with the IPv4 destination address in this message respectively with the source IPv4 matching addresses in each bar tunnel of this equipment, find on the selected tunnel coupling, determine that then the unreachable message of this ICMPv4 is at selected tunnel.
A kind of IPv6over IPv4 tunnel switching device, this equipment comprises:
Module is selected in the tunnel, in the time will sending the IPv6 message, searches the available tunnel that can transmit this message, obtains the current priority in each available tunnel of bar from tunnel priority maintenance module, selects the highest tunnel of current priority to send this IPv6 message;
Tunnel priority maintenance module according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, when the unreachable message of ICMPv4 that receives at selected tunnel, reduces the current priority in this tunnel.
Described tunnel priority maintenance module is further used for,
When the unreachable message of article one ICMPv4 that receives at selected tunnel, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, with the current priority rising in this tunnel.
Described tunnel priority maintenance module comprises:
The priority memory module according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, is preserved the corresponding relation of Tunnel Identifier and initial priority, current priority;
Unreachable message processing module when the unreachable message of ICMPv4 that receives at selected tunnel, sends the degradation indication of carrying selected Tunnel Identifier to the degradation maintenance module;
The degradation maintenance module, the degradation indication of selected Tunnel Identifier is carried in reception, obtains the current priority in selected tunnel from the priority memory module, judges whether this current priority equals to preset lowest priority, if keep the current priority in this tunnel constant; Otherwise, reduce the current priority in this tunnel, and with the current priority in this tunnel of preserving in the priority update priority memory module after reducing.
Described unreachable message processing module is further used for, and when the unreachable message of article one ICMPv4 that receives at selected tunnel, query messages is sent indication send;
Described tunnel priority maintenance module further comprises:
The query messages sending module, after receiving query messages transmission indication, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, send the upgrading indication of carrying selected Tunnel Identifier to the upgrade maintenance module;
The upgrade maintenance module, the upgrading indication of selected Tunnel Identifier is carried in reception, obtains the current priority and the initial priority in selected tunnel from the priority memory module, judges whether current priority equals initial priority, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel that raises, and with the current priority in this tunnel of preserving in the priority update priority memory module after raising.
Compared with prior art, for every IPv6over IPv4 priority is set among the present invention, when sending the IPv6 message, selects the highest tunnel of current priority to send this message at every turn; When the unreachable message of ICMPv4 received at the tunnel that is using, the current priority in this tunnel is reduced, so that route can switch on other available tunnel, thereby realized the tunnel switching.And, adopt the unreachable message of ICMPv4 to trigger route and switch, like this, when the tunnel operate as normal, do not consume the tunnel bandwidth resource; When the tunnel broke down, the message of big flow can trigger the unreachable message of more ICMPv4, accelerated the speed that route is switched, and had realized the dynamic adjustment of route.
In addition, in the embodiment of the invention, when the unreachable message of article one ICMPv4 received at the tunnel that is using, beginning sends one query message every scheduled duration to the tunnel opposite equip., if receive response message, then the current priority with this tunnel raises, and makes after tunnel restoration, route can in time switch on the high tunnel of priority, has rationally utilized tunnel resource.
Description of drawings
Fig. 1 passes through the schematic diagram of IPv4 network by IPv6over IPv4 tunnel for existing IPv6 message;
The method flow diagram that the IPv6over IPv4 tunnel that Fig. 2 provides for the embodiment of the invention switches;
Fig. 3 is an application example schematic diagram of the present invention;
The composition diagram of the IPv6over IPv4 tunnel switching device that Fig. 4 provides for the embodiment of the invention;
The composition diagram of the tunnel priority maintenance module that Fig. 5 provides for the embodiment of the invention.
Embodiment
Core concept of the present invention is: tunnel source end equipment is according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel; When tunnel source end equipment will send the IPv6 message, search the available tunnel that can transmit this message, in available tunnel, select the highest tunnel of current priority to send this IPv6 message; When tunnel source end equipment receives the unreachable message of ICMPv4 at selected tunnel, the current priority in this tunnel is reduced.
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The method flow diagram that the IPv6over IPv4 tunnel that Fig. 2 provides for the embodiment of the invention switches, as shown in Figure 2, its concrete steps are as follows:
Step 201: preestablish the computation rule of IPv6over IPv4 tunnel priority, tunnel source end equipment calculates the initial priority in each bar tunnel according to this computation rule.
Usually according to the initial priority in the information calculations tunnels such as band width in physical of tunnel outgoing interface, the band width in physical of tunnel outgoing interface is big more, and tunnel priority is high more.
Step 202: when tunnel source end equipment will send an IPv6 message,, in routing table, search available tunnel, find that available tunnel is more than two according to the IPv6 destination address of message.
Step 203: tunnel source end equipment selects the highest tunnel of current priority to send this IPv6 message in available tunnel.
Step 204: the tunnel that using produces fault, and the IPv4 router on the tunnel sends the unreachable message of ICMPv4 to tunnel source end equipment, and the IPv4 destination address in the IPv4 head of this message is the IPv4 address, source in the tunnel that using.
Step 205: tunnel source end equipment receives the unreachable message of ICMPv4, and with the source IPv4 matching addresses in each bar tunnel of the IPv4 destination address in this message and this equipment, with the tunnel on the coupling promptly: the current priority in the tunnel that is using reduces is scheduled to progression.
The predetermined progression here is generally 1.
After this, as long as the current priority in the tunnel that is using is still for the highest, then tunnel source end equipment is when sending the IPv6 message, relatively behind the current priority in each bar tunnel, still can use this tunnel to send the IPv6 message, and as long as this tunnel does not recover, then tunnel source end equipment still can continue to receive the unreachable message of ICMPv4, whenever receive the unreachable message of ICMPv4, tunnel source end equipment all can be carried out step 205 one time, and then the current priority in this tunnel can continue to reduce, and the current priority until the tunnel equals default lowest priority, here, default lowest priority is generally 0.When the current priority in this tunnel was reduced to current priority less than other tunnel, flow will switch on other tunnel.
Step 206: when tunnel source end equipment receives the unreachable message of article one ICMPv4, tunnel source end equipment begins every scheduled duration, tunnel by the unreachable message directs of ICMPv4, send echo request (Echo Request) message to the tunnel opposite equip., whenever receive the response message that tunnel opposite equip. returns, then with the predetermined progression of current priority rising in this tunnel, the current priority until the tunnel equals initial priority.
The predetermined progression here is generally 1.
When the current priority in this tunnel began to be higher than the current priority in other tunnel, flow can switch on this tunnel again.
Fig. 3 is an application example of the present invention, as shown in Figure 3, a tunnel is arranged: tunnel 1 and 2 between IPv6 router-A and IPv6 router B1, the IPv6 router B2 respectively, wherein router C is positioned on the tunnel 1, router D is positioned on the tunnel 2, the initial priority of setting tunnel 1 is 100, and the initial priority in tunnel 2 is 90, then:
When initial, the IPv6 router-A can select tunnel 1 to send the IPv6 message.
Be located at the moment 1, link between router C and the B1 disconnects, then router C can send the unreachable message of ICMPv4 to the IPv6 device A, destination address in the IPv4 head of this message is: the IPv4 address, source of tunnel 1 configuration, after the IPv6 router-A is received this message, find the source IPv4 matching addresses in the IPv4 destination address and the tunnel 1 of this message, then the current priority with tunnel 1 reduces one-level.
After this, when the IPv6 router-A will send the IPv6 message, be not less than tunnel 2 as long as find the current priority in tunnel 1, then still can select tunnel 1 to send this message, but because the link between router C and the B1 does not recover always, therefore, IPv6 message of the every transmission of IPv6 router-A, will receive the unreachable message of ICMPv4 that router C sends, thereby the current priority in tunnel 1 can be reduced by 1 grade, when the current priority in tunnel 1 is reduced to less than 90 the time, the IPv6 router-A begins to select tunnel 2 to send follow-up IPv6 message.
When the IPv6 router-A is received at the unreachable message of article one ICMPv4 in tunnel 1, the IPv6 router-A can send an Echo Request message to tunnel 1 every scheduled duration, the destination address of this message is the purpose IPv4 address of tunnel 1 configuration, behind the link-recovery between router C and the B1, the IPv6 router-A can be received the response message from IPv6 router B1, whenever receive response message one time, the current priority in tunnel 1 is raise 1 grade, current priority until tunnel 1 equals initial priority: 100, when the current priority in tunnel 1 rises to 90 when above, the IPv6 router-A can be reselected tunnel 1 and send the IPv6 message.
The composition diagram of the IPv6over IPv4 tunnel switching device that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, it mainly comprises: module 41 and tunnel priority maintenance module 42 are selected in the tunnel, wherein:
Tunnel priority maintenance module 42: according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel; When the unreachable message of ICMPv4 that receives at selected tunnel, the current priority in this tunnel is reduced predetermined progression.
Tunnel priority maintenance module 42 also can be used for, when the unreachable message of article one ICMPv4 that receives at selected tunnel, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, with the predetermined progression of current priority rising in this tunnel.
In the practical application, tunnel priority maintenance module 42 can comprise: priority memory module 421, unreachable message processing module 422, degradation maintenance module 423, query messages sending module 424 and upgrade maintenance module 425, wherein:
Priority memory module 421:, preserve the corresponding relation of Tunnel Identifier and initial priority, current priority according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel.
Unreachable message processing module 422: when the unreachable message of ICMPv4 that receives at selected tunnel, send the degradation indication of carrying selected Tunnel Identifier to degradation maintenance module 423; And, when the unreachable message of article one ICMPv4 that receives at selected tunnel, query messages is sent indication sends to query messages sending module 424.
Degradation maintenance module 423: receive the degradation indication of carrying selected Tunnel Identifier that unreachable message processing module 422 is sent, obtain the current priority in selected tunnel from priority memory module 421, judge whether this current priority equals default lowest priority, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel is reduced predetermined progression, and with the current priority in this tunnel of preserving in the priority update priority memory module 421 after reducing.
Query messages sending module 424: when receiving after query messages that unreachable message processing module 422 sends sends indication, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, send the upgrading indication of carrying selected Tunnel Identifier to upgrade maintenance module 425.
Upgrade maintenance module 425: receive the upgrading indication of carrying selected Tunnel Identifier that query messages sending module 424 is sent, obtain the current priority and the initial priority in selected tunnel from priority memory module 421, judge whether current priority equals initial priority, if keep the current priority in this tunnel constant; Otherwise, with the current priority in this tunnel predetermined progression that raises, and with the current priority in this tunnel of preserving in the priority update priority memory module 421 after raising.
The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of IPv6over IPv4 tunnel switching method is characterized in that, tunnel source end equipment is according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, and this method comprises:
When tunnel source end equipment will send the IPv6 message, search the available tunnel that can transmit this message, in available tunnel, select the highest tunnel of current priority to send this IPv6 message;
When tunnel source end equipment receives the unreachable message of ICMPv4 at selected tunnel, the current priority in this tunnel is reduced.
2, the method for claim 1 is characterized in that, when tunnel source end equipment received the unreachable message of article one ICMPv4 at selected tunnel, described method further comprised:
Tunnel source end equipment sends query messages by selected tunnel to the tunnel opposite equip. every scheduled duration, whenever receives the response message that a tunnel opposite equip. returns, with the current priority rising in this tunnel.
3, the method for claim 1 is characterized in that, described tunnel source end equipment receives at further comprising before the current priority reduction after the unreachable message of the ICMPv4 in selected tunnel, with this tunnel:
Tunnel source end equipment judges whether the current priority in selected tunnel equals default lowest priority, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel is reduced.
4, method as claimed in claim 2 is characterized in that, described tunnel source end equipment receives after the response message that a tunnel opposite equip. returns, further comprise before the current priority in this tunnel is raise:
Tunnel source end equipment judges whether the current priority in selected tunnel equals the initial priority in this tunnel, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel that raises.
5, the method for claim 1 is characterized in that, described tunnel source end equipment receives at the unreachable message of the ICMPv4 in selected tunnel and comprises:
Tunnel source end equipment receives the unreachable message of ICMPv4, with the IPv4 destination address in this message respectively with the source IPv4 matching addresses in each bar tunnel of this equipment, find on the selected tunnel coupling, determine that then the unreachable message of this ICMPv4 is at selected tunnel.
6, a kind of IPv6over IPv4 tunnel switching device is characterized in that this equipment comprises:
Module is selected in the tunnel, in the time will sending the IPv6 message, searches the available tunnel that can transmit this message, obtains the current priority in each available tunnel of bar from tunnel priority maintenance module, selects the highest tunnel of current priority to send this IPv6 message;
Tunnel priority maintenance module according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, when the unreachable message of ICMPv4 that receives at selected tunnel, reduces the current priority in this tunnel.
7, equipment as claimed in claim 6 is characterized in that, described tunnel priority maintenance module is further used for,
When the unreachable message of article one ICMPv4 that receives at selected tunnel, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, with the current priority rising in this tunnel.
8, equipment as claimed in claim 6 is characterized in that, described tunnel priority maintenance module comprises:
The priority memory module according to the initial priority in default each bar tunnel of priority calculation rule, IPv6over IPv4 tunnel, is preserved the corresponding relation of Tunnel Identifier and initial priority, current priority;
Unreachable message processing module when the unreachable message of ICMPv4 that receives at selected tunnel, sends the degradation indication of carrying selected Tunnel Identifier to the degradation maintenance module;
The degradation maintenance module, the degradation indication of selected Tunnel Identifier is carried in reception, obtains the current priority in selected tunnel from the priority memory module, judges whether this current priority equals to preset lowest priority, if keep the current priority in this tunnel constant; Otherwise, reduce the current priority in this tunnel, and with the current priority in this tunnel of preserving in the priority update priority memory module after reducing.
9, equipment as claimed in claim 8 is characterized in that, described unreachable message processing module is further used for, and when the unreachable message of article one ICMPv4 that receives at selected tunnel, query messages is sent indication send;
Described tunnel priority maintenance module further comprises:
The query messages sending module, after receiving query messages transmission indication, every scheduled duration, send query messages by selected tunnel to the tunnel opposite equip., whenever receive the response message that a tunnel opposite equip. returns, send the upgrading indication of carrying selected Tunnel Identifier to the upgrade maintenance module;
The upgrade maintenance module, the upgrading indication of selected Tunnel Identifier is carried in reception, obtains the current priority and the initial priority in selected tunnel from the priority memory module, judges whether current priority equals initial priority, if keep the current priority in this tunnel constant; Otherwise, the current priority in this tunnel that raises, and with the current priority in this tunnel of preserving in the priority update priority memory module after raising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100858172A CN101572665B (en) | 2009-06-01 | 2009-06-01 | IPv6 over IPv4 tunnel switching method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100858172A CN101572665B (en) | 2009-06-01 | 2009-06-01 | IPv6 over IPv4 tunnel switching method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101572665A true CN101572665A (en) | 2009-11-04 |
| CN101572665B CN101572665B (en) | 2011-04-20 |
Family
ID=41231904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100858172A Expired - Fee Related CN101572665B (en) | 2009-06-01 | 2009-06-01 | IPv6 over IPv4 tunnel switching method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101572665B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069385A1 (en) * | 2009-12-10 | 2011-06-16 | 中兴通讯股份有限公司 | Method and apparatus for dynamically selecting service bearer network |
| CN102594626A (en) * | 2012-03-08 | 2012-07-18 | 福建星网锐捷网络有限公司 | Method and device for detecting fault of internet protocol version 6 (IPv6) tunnel |
| CN109600293A (en) * | 2018-12-24 | 2019-04-09 | 青岛海信电子设备股份有限公司 | A kind of gre tunneling method for building up and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100512228C (en) * | 2007-04-28 | 2009-07-08 | 中山大学 | Method for realizing communication between IPv4 communication node and mobile node of crossing heterogeneous network |
-
2009
- 2009-06-01 CN CN2009100858172A patent/CN101572665B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069385A1 (en) * | 2009-12-10 | 2011-06-16 | 中兴通讯股份有限公司 | Method and apparatus for dynamically selecting service bearer network |
| CN102594626A (en) * | 2012-03-08 | 2012-07-18 | 福建星网锐捷网络有限公司 | Method and device for detecting fault of internet protocol version 6 (IPv6) tunnel |
| CN102594626B (en) * | 2012-03-08 | 2014-08-27 | 福建星网锐捷网络有限公司 | Method and device for detecting fault of internet protocol version 6 (IPv6) tunnel |
| CN109600293A (en) * | 2018-12-24 | 2019-04-09 | 青岛海信电子设备股份有限公司 | A kind of gre tunneling method for building up and system |
| CN109600293B (en) * | 2018-12-24 | 2021-06-04 | 青岛海信电子设备股份有限公司 | GRE tunnel establishment method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101572665B (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102342286B1 (en) | DCN message processing method, network device, and network system | |
| EP1718014B1 (en) | A route switching method and a network node device | |
| EP2129049A1 (en) | A protecting method and device for ethernet tree service | |
| KR20120079124A (en) | Method for performing dynamic tunnel message forwarding and switch thereof | |
| CN100417141C (en) | Group broadcasting business realizing method | |
| US10686701B2 (en) | Packet transmission method and device, and communications system | |
| US9602461B2 (en) | Service forwarding method and device | |
| US20130097336A1 (en) | Method, terminal and gateway for transmitting ipv6 packet in ipv4 network | |
| RU2013152953A (en) | BASIC STATION DEVICES, MOBILITY MANAGEMENT NODE, SYSTEM, METHOD AND COMPUTER SOFTWARE PRODUCT FOR INFORMING A BASIC NETWORK OF A SUBSCRIBER ACCESS GROUP OF A TARGET CELL IN THE PROCESS OF PROCESSING2 | |
| CN101640645A (en) | Message transmission method and system | |
| CN111490933A (en) | Bidirectional forwarding detection switching method and edge device | |
| CN114980175B (en) | Wireless communication mode self-adaptive correction platform | |
| CN101572665B (en) | IPv6 over IPv4 tunnel switching method and device | |
| CN102291305A (en) | Method and device for implementing 6 to 4 relay routing, and message forwarding method | |
| CN101222370B (en) | Method and device for failure location using failure location packet | |
| CN101383834A (en) | Method for forwarding IPv6 multicast report between 6to4 networks and 6to4 device | |
| CN109587749B (en) | Data sending method and system | |
| JP2002176446A (en) | Terminal location information management method, terminal location information management system employing the method, and home agent and border gateway used for the system | |
| US11206590B2 (en) | Method for realizing wireless network convergence | |
| US10320607B2 (en) | Data transmission method, forwarding information update method, communications device, and controller | |
| KR101896562B1 (en) | Information transmission method, radio equipment controller, radio equipment, and base station | |
| CN102547845B (en) | A kind of management method of data message during switchover of mobile node in identification network and system | |
| WO2023186141A1 (en) | Data packet forwarding method and apparatus, storage medium, and electronic device | |
| CN107465536A (en) | A kind of webmaster message automatic routing method and system based on multiplexing equipment | |
| CN1949931B (en) | Method for updating roaming user address and access controller |
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 | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20200601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |