CN101977138A - Method, device, system and equipment for establishing tunnel in layer-2 virtual private network - Google Patents
Method, device, system and equipment for establishing tunnel in layer-2 virtual private network Download PDFInfo
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- CN101977138A CN101977138A CN2010102349930A CN201010234993A CN101977138A CN 101977138 A CN101977138 A CN 101977138A CN 2010102349930 A CN2010102349930 A CN 2010102349930A CN 201010234993 A CN201010234993 A CN 201010234993A CN 101977138 A CN101977138 A CN 101977138A
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Abstract
The embodiment of the invention provides a method, a device, a system and equipment for establishing a tunnel in a layer-2 virtual private network (L2VPN). The method for establishing the tunnel in the layer-2 virtual private network comprises the following steps that: a second provider edge (PE) receives a first equipment identifier and a first tag block which are allocated to a first customer edge (CE) by a first PE, wherein the first equipment identifier and the first tag block are allocated to the first CE after the first PE detects the first CE newly accessed to the L2VPN; the second PE establishes the tunnel between the first PE and the second PE according to the first equipment identifier, the first tag block and the second local tag block of the second PE; and the second local tag block of the second PE is the tag block which is allocated to the second CE connected with the second PE by the second PE. The embodiment of the invention realizes increase of adaptive CE under the condition of not amending the configuration when the capacity of the L2VPN is expanded, realizes effective allocation of the tag block and prevents the problem of tag waste.
Description
Technical field
The present invention relates to communication technical field, relate in particular to tunnel establishing method, device, system and equipment in a kind of Layer 2 virtual private network.
Background technology
The Layer 2 virtual private network technology provides based on multiprotocol label switching (Multi-protocol LabelSwitching; Hereinafter to be referred as: the MPLS) Layer 2 virtual private network of network (Layer 2 VirtualPrivate Network; Hereinafter to be referred as: L2VPN) service.In simple terms, L2VPN is exactly the Layer 2 data of transparent transmission user on the MPLS network.From user's angle, the MPLS network is two layers of switching network, can set up two layers of connection between different nodes.
The Layer 2 virtual private network technology mainly contains two types at present: virtual private circuit service (Virtual Private Wire Service, hereinafter to be referred as: VPWS) and VPLS (Virtual Private Local Area Network Service; Hereinafter to be referred as: VPLS).Wherein the core concept of VPLS technology is to utilize provider edge equipment (the Provider Edge of signaling protocol at the VPLS example; Hereinafter to be referred as: PE) set up and safeguard pseudo-line (Pseudo Wire between the node; Hereinafter to be referred as: PW), with two-layer protocol frame encapsulation back transmission and exchange on PW, make in the wide scope a plurality of local area network (LAN)s be integrated into the network of throwing the net in the data link aspect, provide virtual Ethernet service to the user, wherein PW is a two-way virtual connection of setting up between two VPLS examples.The VPLS technology combines Internet Protocol (Internet Protocol effectively; Hereinafter to be referred as: IP)/characteristics of multiple technologies such as MPLS, L2VPN and Ethernet exchange, support point-to-point, put multiple spot and multiple spot, can under than the macroreticular scale, support the carrier class Ethernet to serve to types of service such as multiple spots.In the prior art, the L2VPN of VPLS type comprises two kinds of implementations: a kind of is to adopt tag distribution protocol (Label Distribution Protocol; Hereinafter to be referred as: LDP) as the scheme of signaling protocol, be commonly referred to the Martini scheme; Another kind is to adopt Border Gateway Protocol (BorderGateway Protocol; Hereinafter to be referred as: BGP) as the scheme of signaling protocol, be commonly referred to the Kompella scheme.
Use BGP as signaling protocol by the VPLS service that the Kompella scheme realizes, between PE, transmit Layer 2 virtual private network information.When realizing the VPLS service by the Kompella scheme at present, the mode of employing tag block realizes the distribution of label, requires every PE equipment to be each customer edge (Customer Edge in advance; Hereinafter to be referred as: CE) distribute a tag block, the size of this tag block has determined this CE to set up PW with which CE.Particularly, when the device identifier of neighbours CE is within the scope of local distributed labels piece, can set up PW between the PE; When the device identifier of neighbours CE exceeds the scope of local distributed labels piece, just can't set up PW between the PE.In setting up the PW process, PE calculates according to device identifier and the local distributed labels piece of neighbours CE, obtains the label of actual use, is used for the transmission of message.Use the benefit of tag block to be, permit a user to each CE and distribute some extra labels, dilatation is used after waiting until.
The method that the Kompella mode adopts tag block to distribute, though provide convenience the problem below existing for later dilatation:
(1) tag block is user's manual configuration, is not automatic configuration.Therefore, troublesome maintenance for the user.When the user needs dilatation, need on all PE equipment, revise the size of tag block, troublesome poeration, and quantity more than one are made mistakes easily.Though the trouble that the Kompella mode disposes when allowing the user to avoid dilatation by the bigger tag block of preassignment, in case but the scale of user's dilatation surpasses the size of original preallocated tag block, still need the user to revise the size of tag block on all devices, to satisfy the demand of user's dilatation.
(2) owing to plan for dilatation, employing be the method for preassignment label, therefore have the problem of label waste.A tag block need be reserved several labels in order to using in the future, and these labels are assigned with, and can not be used by other service request again, can cause these several labels to be wasted like this.When the number of tag block increased, the problem of label waste was more serious.
Summary of the invention
The embodiment of the invention provides tunnel establishing method, device, system and the equipment in a kind of Layer 2 virtual private network, and to realize when the L2VPN dilatation, under the situation of not revising configuration, the problem of label waste is avoided in the increase of self adaptation CE.
The embodiment of the invention provides the tunnel establishing method in a kind of Layer 2 virtual private network, comprising:
It is first device identifier and first tag block that first customer edge distributes that second provider edge equipment receives first provider edge equipment, described first device identifier and described first tag block are that described first provider edge equipment is after detecting described first customer edge of new access Layer 2 virtual private network, for described first customer edge distributes;
Described second provider edge equipment is set up tunnel between described first provider edge equipment and described second provider edge equipment according to second tag block of described first device identifier, described first tag block and described second provider edge equipment this locality; Second tag block of described second provider edge equipment this locality is that described second provider edge equipment is the second customer edge distributed labels piece that described second provider edge equipment connects.
The embodiment of the invention also provides the apparatus for establishing of the tunnel in a kind of Layer 2 virtual private network, comprising:
Receiver module, being used to receive first provider edge equipment is first device identifier and first tag block that first customer edge distributes, described first device identifier and described first tag block are that described first provider edge equipment is after detecting described first customer edge of new access Layer 2 virtual private network, for described first customer edge distributes;
Set up module, be used for described first device identifier that receives according to second tag block of apparatus for establishing this locality, described tunnel, described receiver module and described first tag block and set up tunnel between described first provider edge equipment and the described tunnel apparatus for establishing; Second tag block of apparatus for establishing this locality, described tunnel is that described tunnel apparatus for establishing is the second customer edge distributed labels piece that described tunnel apparatus for establishing connects.
The embodiment of the invention also provides a kind of provider edge equipment, comprising: above-mentioned tunnel apparatus for establishing.
The embodiment of the invention also provides the tunnel in a kind of Layer 2 virtual private network to set up system, comprising: at least two customer edge and at least two above-mentioned provider edge equipments; Every provider edge equipment connects at least one customer edge.
Pass through the embodiment of the invention, first provider edge equipment is after first customer edge that detects new access L2VPN, be that first customer edge distributes first device identifier and first tag block, first provider edge equipment sends to second provider edge equipment with first device identifier and first tag block then, sets up tunnel between first provider edge equipment and second provider edge equipment by second provider edge equipment according to second tag block of first device identifier, first tag block and second provider edge equipment this locality; Thereby realized when the L2VPN dilatation, under the situation of not revising configuration, the increase of self adaptation CE, and realized distributing labels piece effectively, avoided the problem of label waste.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the embodiment of tunnel establishing method in the Layer 2 virtual private network of the present invention;
Fig. 2 is the structural representation of an embodiment of L2VPN network topology of the present invention;
Fig. 3 is the flow chart of another embodiment of tunnel establishing method in the Layer 2 virtual private network of the present invention;
Fig. 4 is the structural representation of the embodiment of tunnel apparatus for establishing in the Layer 2 virtual private network of the present invention;
Fig. 5 is the structural representation of tunnel another embodiment of apparatus for establishing in the Layer 2 virtual private network of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Fig. 1 is the flow chart of the embodiment of tunnel establishing method in the Layer 2 virtual private network of the present invention, and as shown in Figure 1, this tunnel establishing method can comprise:
Particularly, the 2nd PE can receive the renewal message that a PE sends, and this renewal message comprises above-mentioned first device identifier and above-mentioned first tag block.
Wherein, second tag block of the 2nd PE this locality is that the 2nd PE is the 2nd CE distributed labels piece that the 2nd PE connects.
Particularly, the 2nd PE can judge first device identifier size whether greater than the size of second tag block; If the size of first device identifier is not more than the size of second tag block, then the 2nd PE calculates first label according to first tag block and second tag block, and sets up tunnel between the 2nd PE and the PE according to first label; Perhaps, if the size of first device identifier is greater than the size of second tag block, then the 2nd PE distributes the 3rd tag block according to first device identifier and second tag block, and the size of the 3rd tag block is not less than the difference of the size of the size of first device identifier and second tag block; The 2nd PE sends to a PE with second device identifier and above-mentioned the 3rd tag block of the 2nd CE then, so that a PE calculates second label according to the 3rd tag block and first tag block, and sets up tunnel between a PE and the 2nd PE according to this second label.
In the foregoing description, the one PE is after a CE who detects new access L2VPN, be that a CE distributes first device identifier and first tag block, a PE sends to the 2nd PE with a CE and first tag block then, sets up tunnel between a PE and the 2nd PE by the 2nd PE according to second tag block of first device identifier, first tag block and the 2nd PE this locality; Thereby realized when the L2VPN dilatation, under the situation of not revising configuration, the increase of self adaptation CE, and realized distributing labels piece effectively, avoided the problem of label waste.
Below in conjunction with Fig. 2 the tunnel establishing method among the L2VPN provided by the invention is described, Fig. 2 is the structural representation of an embodiment of L2VPN network topology of the present invention, suppose that PE1 and PE2 have used BGP to set up L2VPN among Fig. 2, wherein, CE1 and CE2 belong to same L2VPN, CE1 is connected with PE1, and CE2 is connected with PE2.PE1 and PE2 have been respectively CE1 and CE2 has distributed tag block B1 and B2.
At this moment, the user will carry out dilatation to network owing to be subjected to the restriction of network capacity, has therefore increased CE3 newly, makes CE3, CE1 and CE2 belong to same L2VPN.Because the user has disposed the tag block size at PE1 and PE2, therefore use the method that provides in the prior art need revise configuration on PE1 and the PE2 simultaneously, PE1 and PE2 increase the size that PE1 and PE2 go up tag block, so that can adapt to the increase of new CE3.
Tunnel establishing method in the Layer 2 virtual private network that the embodiment of the invention provides, quantity by the CE that supports between two PE of automatic negotiation, make that PE can be according to increase and the minimizing of CE, automatically increase or reduce the size of tag block, realized when the L2VPN dilatation, under the situation of not revising configuration, the increase of self adaptation CE equipment, and realized effective distributing labels piece, be unlikely to cause the waste of tag block.
Fig. 3 is the flow chart of another embodiment of tunnel establishing method in the Layer 2 virtual private network of the present invention, and the tunnel establishing method that present embodiment provides can be used for network shown in Figure 2, and as shown in Figure 3, this tunnel establishing method can comprise:
In the present embodiment, PE1 is that device identifier and the tag block that CE3 distributes represented with C3 and B3 respectively.
Wherein, PE1 can be CE3 distributing equipment identifier C3 by artificial or predetermined algorithm; The size of B3 can be the maximum among the device identifier C3 of the device identifier C2 of device identifier C1, the CE2 of CE1 and CE3, i.e. B3=max{C1, C2, C3}.
Whether step 304, the size that PE2 judges C3 be greater than the size of the tag block B2 of PE2 this locality.
If the size of C3 is not more than the size of B2, then execution in step 305; If the size of C3 is greater than the size of B2, then execution in step 306.
Wherein, the size of B4 is not less than the difference of the size of the size of C3 and B2.Can guarantee that like this label is reasonably used, and is unlikely to be wasted.
In the present embodiment, because the size of the device identifier C2 that PE1 receives is not more than the size of local label piece B3, therefore PE 1 can calculate second label according to tag block B4 and local label piece B3, and then can set up VPLS tunnel between PE1 and the PE2 according to this second label.
The foregoing description realized when the L2VPN dilatation, under the situation of not revising configuration, and the variation that L2VPN can adaptive network, automatic and newly-increased CE sets up the VPLS tunnel.Solve the problem of label waste simultaneously, made that label is reasonably used, be unlikely to cause the waste of tag block.
Tunnel establishing method in the Layer 2 virtual private network that the embodiment of the invention provides can be applied among the L2VPN of any employing tag block method of salary distribution foundation, and for example: VPWS is not limited to VPLS.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 4 is the structural representation of the embodiment of tunnel apparatus for establishing in the Layer 2 virtual private network of the present invention, tunnel apparatus for establishing in the present embodiment can be used as provider edge equipment, perhaps the part of provider edge equipment realizes the present invention's flow process embodiment illustrated in fig. 1.As shown in Figure 4, this tunnel apparatus for establishing can comprise: receiver module 41 and set up module 42;
Wherein, receiver module 41, being used to receive first provider edge equipment is first device identifier and first tag block that first customer edge distributes; This first device identifier and first tag block are that first provider edge equipment is after detecting first customer edge of new access Layer 2 virtual private network, for this first customer edge distributes; Particularly, receiver module 41 can receive the renewal message that first provider edge equipment sends, and this renewal message comprises above-mentioned first device identifier and above-mentioned first tag block;
Set up module 42, be used for first device identifier that second tag block, receiver module 41 according to this apparatus for establishing this locality, tunnel receive and first tag block and set up tunnel between first provider edge equipment and this tunnel apparatus for establishing; Second tag block of this apparatus for establishing this locality, tunnel is the second customer edge distributed labels piece that this tunnel apparatus for establishing connects for this tunnel apparatus for establishing.
In the above-mentioned tunnel apparatus for establishing, receiver module 41 receives first provider edge equipment after detecting first customer edge of new access Layer 2 virtual private network, be first device identifier and first tag block that this first customer edge distributes, set up module 42 then and set up tunnel between a PE and this tunnel apparatus for establishing according to second tag block of first device identifier, first tag block and this apparatus for establishing this locality, tunnel; Thereby realized when the L2VPN dilatation, under the situation of not revising configuration, the increase of self adaptation CE, and realized distributing labels piece effectively, avoided the problem of label waste.
Fig. 5 is the structural representation of tunnel another embodiment of apparatus for establishing in the Layer 2 virtual private network of the present invention, tunnel apparatus for establishing in the present embodiment can be used as provider edge equipment, perhaps the part of provider edge equipment realizes Fig. 1 of the present invention or flow process embodiment illustrated in fig. 3.Compare with tunnel apparatus for establishing shown in Figure 4, difference is that in the tunnel apparatus for establishing shown in Figure 5, setting up module 42 can comprise: submodule 422 is set up in judgement submodule 421 and tunnel;
Wherein, judge submodule 421, whether the size that is used to judge first device identifier is greater than the size of second tag block;
Submodule 422 is set up in the tunnel, when being used for size at first device identifier and being not more than second tag block big or small, calculate first label according to first tag block and second tag block, and set up tunnel between this tunnel apparatus for establishing and first provider edge equipment according to this first label.
In the present embodiment, setting up module 42 can also comprise: tag block distribution sub module 423 and transmission submodule 424;
Wherein, tag block distribution sub module 423, be used in the size of first device identifier during greater than second tag block big or small, distribute the 3rd tag block according to first device identifier and second tag block, the size of the 3rd tag block is not less than the difference of the size of the size of first device identifier and second tag block;
Send submodule 424, be used for second device identifier and the 3rd tag block of second customer edge are sent to first provider edge equipment, so that first provider edge equipment calculates second label according to the 3rd tag block and first tag block, and set up tunnel between first provider edge equipment and this tunnel apparatus for establishing according to this second label.
Above-mentioned tunnel apparatus for establishing realized when the L2VPN dilatation, under the situation of not revising configuration, and the variation that L2VPN can adaptive network, automatic and newly-increased CE sets up the tunnel.Solve the problem of label waste simultaneously, made that label is reasonably used, be unlikely to cause the waste of tag block.
The embodiment of the invention also provides the tunnel in a kind of Layer 2 virtual private network to set up system, comprises at least two customer edge and at least two provider edge equipments; Every provider edge equipment connects at least one customer edge; Wherein, this provider edge equipment can realize that is to say that the tunnel of the embodiment of the invention is set up in the system, provider edge equipment has identical structure by Fig. 4 of the present invention or tunnel apparatus for establishing shown in Figure 5.The topological structure of system is set up in the tunnel that the embodiment of the invention provides can be as shown in Figure 2, and the PE1 among Fig. 2 has identical structure with PE2, all can realize by Fig. 4 of the present invention or tunnel apparatus for establishing shown in Figure 5.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the tunnel establishing method in the Layer 2 virtual private network is characterized in that, comprising:
It is first device identifier and first tag block that first customer edge distributes that second provider edge equipment receives first provider edge equipment, described first device identifier and described first tag block are that described first provider edge equipment is after detecting described first customer edge of new access Layer 2 virtual private network, for described first customer edge distributes;
Described second provider edge equipment is set up tunnel between described first provider edge equipment and described second provider edge equipment according to second tag block of described first device identifier, described first tag block and described second provider edge equipment this locality; Second tag block of described second provider edge equipment this locality is that described second provider edge equipment is the second customer edge distributed labels piece that described second provider edge equipment connects.
2. method according to claim 1 is characterized in that, it is that first device identifier and first tag block that first customer edge distributes comprises that described second provider edge equipment receives first provider edge equipment:
Described second provider edge equipment receives the renewal message that described first provider edge equipment sends, and described renewal message comprises described first device identifier and described first tag block.
3. method according to claim 1 and 2, it is characterized in that the tunnel that described second provider edge equipment is set up between described first provider edge equipment and described second provider edge equipment according to second tag block of described first device identifier, described first tag block and described second provider edge equipment this locality comprises:
Whether the size that described second provider edge equipment is judged described first device identifier is greater than the size of described second tag block;
If the size of described first device identifier is not more than the size of described second tag block, then described second provider edge equipment calculates first label according to described first tag block and described second tag block, and sets up tunnel between described second provider edge equipment and described first provider edge equipment according to described first label.
4. method according to claim 3 is characterized in that, also comprises:
If the size of described first device identifier is greater than the size of described second tag block, then described second provider edge equipment distributes the 3rd tag block according to described first device identifier and described second tag block, and the size of described the 3rd tag block is not less than the difference of the size of the size of described first device identifier and described second tag block;
Described second provider edge equipment sends to described first provider edge equipment with second device identifier and described the 3rd tag block of described second customer edge, so that described first provider edge equipment calculates second label according to described the 3rd tag block and described first tag block, and set up tunnel between described first provider edge equipment and described second provider edge equipment according to described second label.
5. the tunnel apparatus for establishing in the Layer 2 virtual private network is characterized in that, comprising:
Receiver module, being used to receive first provider edge equipment is first device identifier and first tag block that first customer edge distributes, described first device identifier and described first tag block are that described first provider edge equipment is after detecting described first customer edge of new access Layer 2 virtual private network, for described first customer edge distributes;
Set up module, be used for described first device identifier that receives according to second tag block of apparatus for establishing this locality, described tunnel, described receiver module and described first tag block and set up tunnel between described first provider edge equipment and the described tunnel apparatus for establishing; Second tag block of apparatus for establishing this locality, described tunnel is that described tunnel apparatus for establishing is the second customer edge distributed labels piece that described tunnel apparatus for establishing connects.
6. device according to claim 5 is characterized in that, described receiver module specifically is used to receive the renewal message that described first provider edge equipment sends, and described renewal message comprises described first device identifier and described first tag block.
7. according to claim 5 or 6 described devices, it is characterized in that the described module of setting up comprises:
Judge submodule, whether the size that is used to judge described first device identifier is greater than the size of described second tag block;
Submodule is set up in the tunnel, when being used for size at described first device identifier and being not more than described second tag block big or small, calculate first label according to described first tag block and described second tag block, and set up tunnel between described tunnel apparatus for establishing and described first provider edge equipment according to described first label.
8. device according to claim 7 is characterized in that, the described module of setting up also comprises:
The tag block distribution sub module, be used in the size of described first device identifier during greater than described second tag block big or small, distribute the 3rd tag block according to described first device identifier and described second tag block, the size of described the 3rd tag block is not less than the difference of the size of the size of described first device identifier and described second tag block;
Send submodule, be used for second device identifier and described the 3rd tag block of described second customer edge are sent to described first provider edge equipment, so that described first provider edge equipment calculates second label according to described the 3rd tag block and described first tag block, and set up tunnel between described first provider edge equipment and the described tunnel apparatus for establishing according to described second label.
9. a provider edge equipment is characterized in that, comprising: according to any described tunnel apparatus for establishing of claim 5-8.
10. system is set up in the tunnel in the Layer 2 virtual private network, it is characterized in that, comprising: at least two customer edge and at least two provider edge equipments according to claim 9; Every provider edge equipment connects at least one customer edge.
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| CN2010102349930A CN101977138B (en) | 2010-07-21 | 2010-07-21 | Method, device, system and equipment for establishing tunnel in two-layer virtual private network |
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| CN2010102349930A CN101977138B (en) | 2010-07-21 | 2010-07-21 | Method, device, system and equipment for establishing tunnel in two-layer virtual private network |
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| CN102143080A (en) * | 2011-03-29 | 2011-08-03 | 福建星网锐捷网络有限公司 | Label allocation method, system and device for multi-protocol label switching network |
| CN106936713A (en) * | 2015-12-30 | 2017-07-07 | 华为技术有限公司 | A kind of label management method, data flow processing method and equipment |
| CN110635986A (en) * | 2018-06-25 | 2019-12-31 | 中国移动通信有限公司研究院 | Network access method and equipment |
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| CN101572669A (en) * | 2009-05-27 | 2009-11-04 | 中兴通讯股份有限公司 | Transmitting method of VPN message as well as allocating and deleting method of the router marks thereof |
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| US7031312B1 (en) * | 2001-10-10 | 2006-04-18 | Cicso Technology, Inc. | Method and system for assigning multiprotocol label switching (MPLS) VC (VC) labels when transporting asynchronous transfer mode (ATM) data over MPLS network |
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| CN101572669A (en) * | 2009-05-27 | 2009-11-04 | 中兴通讯股份有限公司 | Transmitting method of VPN message as well as allocating and deleting method of the router marks thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102143080A (en) * | 2011-03-29 | 2011-08-03 | 福建星网锐捷网络有限公司 | Label allocation method, system and device for multi-protocol label switching network |
| CN106936713A (en) * | 2015-12-30 | 2017-07-07 | 华为技术有限公司 | A kind of label management method, data flow processing method and equipment |
| CN106936713B (en) * | 2015-12-30 | 2020-02-21 | 华为技术有限公司 | Label management method, data stream processing method and equipment |
| US11233732B2 (en) | 2015-12-30 | 2022-01-25 | Huawei Technologies Co., Ltd. | Label management method, data stream processing method, and device |
| US11588730B2 (en) | 2015-12-30 | 2023-02-21 | Huawei Technologies Co., Ltd. | Label management method, data stream processing method, and device |
| CN110635986A (en) * | 2018-06-25 | 2019-12-31 | 中国移动通信有限公司研究院 | Network access method and equipment |
| CN110635986B (en) * | 2018-06-25 | 2021-11-16 | 中国移动通信有限公司研究院 | Network access method and equipment |
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| Publication number | Publication date |
|---|---|
| CN101977138B (en) | 2012-05-30 |
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