CN103067243A

CN103067243A - Communication method and associated equipment

Info

Publication number: CN103067243A
Application number: CN201210562477XA
Authority: CN
Inventors: 章海刚
Original assignee: Huawei Technologies Co Ltd
Current assignee: Guangdong Gaohang Intellectual Property Operation Co ltd; Handan ruiyin Fastener Manufacturing Co.,Ltd.
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2013-04-24
Anticipated expiration: 2032-12-21
Also published as: CN103067243B

Abstract

The invention discloses a communication method and associated equipment. The communication method is used for obtaining first time delay of first network equipment transmitting a user data package treaty message to second network equipment through a master communication link and second time delay of the first network equipment transmitting a user data package treaty message to the second network equipment through an auxiliary communication link. When the first time delay is judged to be longer than the second time delay, and the auxiliary communication link is used for transmitting a service message to the second network equipment. Therefore, communication quality of a communication tunnel where the master communication link and the subsidiary communication link locate is detected by comparing the time delay for transmitting the user data package treaty message of the master communication link and the subsidiary communication link, a superior communication tunnel is chosen, rate and quality of data transmission are further improved, and stability of the communication system is improved.

Description

Communication means and relevant device

Technical field

The application relates to the communication network technology field, is specifically related to a kind of communication means and relevant device.

Background technology

Virtual Private Network (Virtual Private Network, VPN) refer to the dependence Internet Service Provider, in common network, set up the technology of special-purpose data communication network, be widely used in the area network communications between branch company of enterprise and the general headquarters, and the area network communications of some affiliated enterprises composition.Mainly come from VPN technologies and can save a large amount of communication costs, remove the traditional WAN equipment of installation and maintenance and remote access equipment and needn't drop into a large amount of man power and materials, and the configuration mode of VPN is easy, reliable, not only can guarantee the safety of data communication, can also make freedom of enterprise management VPN network.

Wherein when disposing VPN, a basic fundamental in the numerous basic fundamentals that adopt is tunneling technique, existing tunneling technique is the point-to-point link of setting up, communicate the technology of connection, refer in above-mentioned dedicated network, set up data link, transmitting data to another network node from a network node, and then claim that this data link is vpn tunneling.Present vpn tunneling is only supported the outgoing interface fixed, the transfer function that between two network nodes, only connects a vpn tunneling supported data by this fixing outgoing interface, if outgoing interface that should be fixing is professional heavy, load is more, congested or the generation fault of vpn tunneling of perhaps setting up by this fixing outgoing interface, then the transfer of data between the network node is obstructed, and causes system business to interrupt or stagnation, has had a strong impact on current speed and the communication quality of whole system.

Summary of the invention

Given this, the embodiment of the present application provides a kind of communication means and relevant device, solved communication network node professional heavy cause communication link be obstructed can not the normal transmission data problem.

First aspect, the embodiment of the present application provide a kind of communication means, and first network equipment is set up main communication link by main outgoing interface and second network equipment, and described first network equipment is set up standby communication link by standby outgoing interface and described second network equipment; Described method comprises:

Described first network equipment obtains by described main communication link and sends the User Datagram Protocol message to the first time-delay of described second network equipment;

Described first network equipment obtains by described standby communication link and sends described User Datagram Protocol message to the second time-delay of described second network equipment;

Described first network equipment judges that whether described the first time-delay is greater than described the second time-delay;

If described the first time-delay sends service message to second network equipment greater than described the second time-delay by standby communication link.

In conjunction with first aspect, in the possible implementation of the first, describedly obtain described first network equipment and send the User Datagram Protocol message to the first time-delay of described second network equipment by described main communication link, comprising:

Described first network equipment sends the User Datagram Protocol message to described second network equipment by described main communication link, so that described second network equipment Inspection behind described User Datagram Protocol message, is fed back described User Datagram Protocol message to described first network equipment by described main communication link; Described User Datagram Protocol message comprises the first running time of the first message identification and described first network equipment, described the first message identification is used for identifying the User Datagram Protocol message that described first network equipment sends by described main communication link, and be that described first network equipment brings into operation time period when sending described User Datagram Protocol message by described main communication link to described second network equipment to described first network equipment the first running time of described first network equipment;

Described first network equipment receives described second network equipment by the described User Datagram Protocol message of described main communication link feedback;

Described first network equipment determine described the first message identification that the described User Datagram Protocol message of described second network equipment by described main communication link feedback comprises and described first network equipment by described main communication link send to described the first message that the described User Datagram Protocol message of described second network equipment comprises marking matched after, second running time of obtaining described first network equipment; Be that described first network equipment brings into operation time period when receiving the described User Datagram Protocol message of described second network equipment by described main communication link feedback to described first network equipment the second running time of described first network equipment;

Described first network equipment calculates the difference of described the second running time and described the first running time, and calculates 1/2 times of described difference and send the User Datagram Protocol message to the first time-delay of described second network equipment as described first network equipment by described main communication link.

In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second, described first network equipment sends the User Datagram Protocol message to the described second network equipment by described main communication link, and described method also comprises:

Described first network equipment is by password encryption User Datagram Protocol message, so that described second network equipment Inspection is behind described User Datagram Protocol message, described User Datagram Protocol message is decrypted, if successful decryption then feeds back described User Datagram Protocol message to described first network equipment by described main communication link.

In conjunction with the first of first aspect or first aspect possible implementation or the possible implementation of the second, in the third possible implementation, describedly obtain described first network equipment and send described User Datagram Protocol message to the second time-delay of described second network equipment by described standby communication link, comprising:

Described first network equipment sends the User Datagram Protocol message to described second network equipment by described standby communication link, so that described second network equipment Inspection behind described User Datagram Protocol message, is fed back described User Datagram Protocol message to described first network equipment by described standby communication link; Described User Datagram Protocol message comprises the 3rd running time of the second message identification and described first network equipment, described the second message identification is used for identifying the User Datagram Protocol message that described first network equipment sends by described standby communication link, and be that described first network equipment brings into operation time period when sending described User Datagram Protocol message by described standby communication link to described second network equipment to described first network equipment the 3rd running time of described first network equipment;

Described first network equipment receives described second network equipment by the described User Datagram Protocol message of described standby communication link feedback;

Described first network equipment determine described the second message identification that the described User Datagram Protocol message of described second network equipment by described standby communication link feedback comprise and described first network equipment by described for communication link send to described the second message that the described User Datagram Protocol message of described second network equipment comprises marking matched after, the 4th running time of obtaining described first network equipment; Be that described first network equipment brings into operation time period when receiving the described User Datagram Protocol message of described second network equipment by described standby communication link feedback to described first network equipment the 4th running time of described first network equipment;

Described first network equipment calculates the difference of described the 4th running time and described the 3rd running time, and calculates 1/2 times of described difference and send the User Datagram Protocol message to the second time-delay of described second network equipment as described first network equipment by described standby communication link.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, described first network equipment sends the User Datagram Protocol message to the described second network equipment by described standby communication link, and described method also comprises:

Described first network equipment is by password encryption User Datagram Protocol message, so that described second network equipment Inspection is behind described User Datagram Protocol message, described User Datagram Protocol message is decrypted, if successful decryption then feeds back described User Datagram Protocol message to described first network equipment by described standby communication link.

In conjunction with the possible implementation of the first of first aspect, in the 5th kind of possible implementation, described first network equipment sends User Datagram Protocol message to described second network equipment by described main communication link and specifically comprises:

Described first network equipment sends the User Datagram Protocol message to described second network equipment by described main communication link respectively in N timing; Wherein, described the first message identification also is used for the timing that sign sends described User Datagram Protocol message;

Described first network equipment by described main communication link send the User Datagram Protocol message to the first time-delay of described second network equipment for described first network equipment N regularly on respectively by the described main communication link transmission User Datagram Protocol message mean value of the time-delay of described second network equipment extremely.

In conjunction with the third possible implementation of first aspect, in the 6th kind of possible implementation, described first network equipment sends User Datagram Protocol message to described second network equipment by described standby communication link and specifically comprises:

Described first network equipment sends the User Datagram Protocol message to described second network equipment by described standby communication link respectively in N timing; Wherein, described the second message identification also is used for the timing that sign sends described User Datagram Protocol message;

Described first network equipment is that described first network equipment sends the extremely mean value of the time-delay of described second network equipment of User Datagram Protocol message by described for communication link respectively in N timing by described the time-delay for communication link transmission User Datagram Protocol message to second of described second network equipment.

In conjunction with the first of first aspect or first aspect possible implementation or the possible implementation of the second, in the 7th kind of possible implementation, described first network equipment is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to IPSEC tunnel protocol by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

Described first network equipment carries out the negotiation of IPSEC protocol tunnel by described standby communication link and described second network equipment;

After determining that described first network equipment is set up the standby communication link of IPSEC tunnel protocol by described standby outgoing interface and described second network equipment, described first network equipment obtains service message;

Described first network equipment is exported described service message to described second network equipment by the described standby outgoing interface at described standby communication link place.

In conjunction with the 7th kind of possible implementation of first aspect, in the 8th kind of possible implementation, described first network equipment obtains after the described service message, and described method also comprises:

Described first network equipment discharges the communication resource that described main communication link takies described first network equipment.

In conjunction with the first of first aspect or first aspect possible implementation or the possible implementation of the second, in the 9th kind of possible implementation, described first network equipment is set up main communication link corresponding to generic route encapsulation GRE agreement by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to GRE agreement by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

Described first network equipment obtains the network address of the tunnel source of described standby communication link, as the primary network address;

Described first network equipment obtains service message;

Described first network equipment according to the network address of the tunnel source of described standby communication link according to the described service message of GRE protocol encapsulation;

The tunnel of described first network equipment by described standby communication link send described first network equipment according to the network address of the tunnel source of described standby communication link according to the described service message of gre tunneling protocol encapsulation to described second network equipment.

In conjunction with the first of first aspect or first aspect possible implementation or the possible implementation of the second, in the tenth kind of possible implementation, described first network equipment is set up main communication link corresponding to two layer tunnel L2TP agreement by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to L2TP Tunnel agreement by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

Described first network equipment carries out the negotiation of L2TP protocol tunnel by described standby communication link and described second network equipment;

After determining that described first network equipment is set up the standby communication link of L2TP Tunnel agreement by described standby outgoing interface and described second network equipment, described first network equipment obtains service message;

In conjunction with the tenth kind of possible implementation of first aspect, in the 11 kind of possible implementation, described first network equipment obtains after the described service message, and described method also comprises:

The 8th kind of possible implementation in conjunction with first aspect, in the 12 kind of possible implementation, the communication resource that described main communication link takies described first network equipment comprises that described main communication link takies internal memory and the list item resource of described first network equipment.

In conjunction with the 12 kind of first aspect possible implementation, in the 13 kind of possible implementation, the communication resource that described main communication link takies described first network equipment comprises that described main communication link takies internal memory and the list item resource of described first network equipment.

Second aspect, the embodiment of the present application provide a kind of network equipment, and the described network equipment is set up main communication link by main outgoing interface and second network equipment, and the described network equipment is set up standby communication link by standby outgoing interface and described second network equipment; Described local network device comprises:

First module is used for obtaining by first time-delay of described main communication link transmission User Datagram Protocol message to described second network equipment;

Second unit sends described User Datagram Protocol message to the second time-delay of described second network equipment for obtaining by described standby communication link;

Unit the 3rd is used for judging that whether described the first time-delay is greater than described the second time-delay;

Unit the 4th is used for sending service message to second network equipment according to the judged result of described the first time-delay of described the 3rd unit judges greater than described the second time-delay by standby communication link.

In conjunction with second aspect, in the possible implementation of the first, described first module comprises:

The first subelement, be used for sending the User Datagram Protocol message to described second network equipment by described main communication link, so that described second network equipment Inspection behind described User Datagram Protocol message, is fed back described User Datagram Protocol message to described local network device by described main communication link; Described User Datagram Protocol message comprises the first running time of the first message identification and described local network device, described the first message identification is used for identifying the User Datagram Protocol message that described local network device sends by described main communication link, and be that described local network device brings into operation time period when sending described User Datagram Protocol message by described main communication link to described second network equipment to described local network device the first running time of described local network device;

The second subelement is used for receiving described second network equipment by the described User Datagram Protocol message of described main communication link feedback;

The 3rd subelement, to send to described the first message that the described User Datagram Protocol message of described second network equipment comprises by described main communication link marking matched with described local network device be used for to determine described the first message identification that the described User Datagram Protocol message of described second network equipment by described main communication link feedback comprise;

The 4th subelement, be used for determining that according to described the 3rd subelement described the first message identification that the described User Datagram Protocol message of described second network equipment by described main communication link feedback comprises and described local network device send to the marking matched result of described the first message that the described User Datagram Protocol message of described second network equipment comprises, second running time of obtaining described local network device by described main communication link; Be that described local network device brings into operation time period when receiving the described User Datagram Protocol message of described second network equipment by described main communication link feedback to described local network device the second running time of described local network device;

The 5th subelement, be used for calculating the difference of described the second running time and described the first running time, and calculate 1/2 times of described difference and send User Datagram Protocol message to first of described second network equipment as described first network equipment by described main communication link and delay time.

In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, the network equipment also comprises:

Unit the 5th, be used for by password encryption User Datagram Protocol message, so that described second network equipment Inspection is behind described User Datagram Protocol message, described User Datagram Protocol message is decrypted, if successful decryption then feeds back described User Datagram Protocol message to described local network device by described main communication link.

In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the third possible implementation, described second unit comprises:

The 6th subelement, be used for sending the User Datagram Protocol message to described second network equipment by described standby communication link, so that described second network equipment Inspection behind described User Datagram Protocol message, is fed back described User Datagram Protocol message to described local network device by described standby communication link; Described User Datagram Protocol message comprises the 3rd running time of the second message identification and described local network device, described the second message identification is used for identifying the User Datagram Protocol message that described local network device sends by described standby communication link, and be that described local network device brings into operation time period when sending described User Datagram Protocol message by described standby communication link to described second network equipment to described local network device the 3rd running time of described local network device;

The 7th subelement is used for receiving described second network equipment by the described User Datagram Protocol message of described standby communication link feedback;

The 8th subelement be used for to determine that described the second message that described User Datagram Protocol message that whether described the second message identification that the described User Datagram Protocol message of described second network equipment by described standby communication link feedback comprise sends to described second network equipment by described standby communication link with described local network device comprises is marking matched;

The 9th subelement, be used for the marking matched result of described the second message that described User Datagram Protocol message that whether described the second message identification that the described second network equipment determined according to described the 8th subelement described User Datagram Protocol message by described standby communication link feedback comprises send to described second network equipment by described standby communication link with described local network device comprises, the 4th running time of obtaining described local network device; Be that described local network device brings into operation time period when receiving the described User Datagram Protocol message of described second network equipment by described standby communication link feedback to described local network device the 4th running time of described local network device;

The tenth subelement, be used for calculating the difference of described the 4th running time and described the 3rd running time, and calculate 1/2 times of described difference and send User Datagram Protocol message to second of described second network equipment as described first network equipment by described standby communication link and delay time.。

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, the network equipment also comprises:

Unit the 6th, be used for by password encryption User Datagram Protocol message, so that described second network equipment Inspection is behind described User Datagram Protocol message, described User Datagram Protocol message is decrypted, if successful decryption then feeds back described User Datagram Protocol message to described local network device by described standby communication link.

In conjunction with the possible implementation of the first of second aspect, in the 5th kind of possible implementation, described the first subelement specifically is used for, and sends the User Datagram Protocol message to described second network equipment by described main communication link respectively in N timing; Wherein, described the first message identification also is used for the timing that sign sends described User Datagram Protocol message;

Described local network device by described main communication link send the User Datagram Protocol message to the first time-delay of described second network equipment for described local network device N regularly on respectively by the described main communication link transmission User Datagram Protocol message mean value of the time-delay of described second network equipment extremely.

In conjunction with the third possible implementation of second aspect, in the 6th kind of possible implementation, described the 6th subelement specifically is used for, and sends the User Datagram Protocol message to described second network equipment by described standby communication link respectively in N timing; Wherein, described the second message identification also is used for the timing that sign sends described User Datagram Protocol message;

Described local network device is that described local network device sends the extremely mean value of the time-delay of described second network equipment of User Datagram Protocol message by described for communication link respectively in N timing by described the time-delay for communication link transmission User Datagram Protocol message to second of described second network equipment.

In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the 7th kind of possible implementation, described local network device is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by described main outgoing interface and described second network equipment; Described local network device is set up standby communication link corresponding to IPSEC tunnel protocol by described standby outgoing interface with described second network equipment;

Described Unit the 4th, concrete being used for carried out the negotiation of IPSEC protocol tunnel by described standby communication link and described second network equipment, after determining that described local network device is set up the standby communication link of IPSEC tunnel protocol by described standby outgoing interface and described second network equipment, obtain service message;

Described Unit the 4th also is used for exporting described service message to described second network equipment by the described standby outgoing interface at described standby communication link place.

In conjunction with the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation, the network equipment also comprises Unit the 7th, is used for discharging the communication resource that described main communication link takies described local network device.

In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the 9th kind of possible implementation, described local network device is set up main communication link corresponding to generic route encapsulation GRE agreement by described main outgoing interface and described second network equipment; Described local network device is set up standby communication link corresponding to GRE agreement by described standby outgoing interface with described second network equipment;

Described Unit the 4th, the network address of concrete tunnel source for obtaining described standby communication link is as the primary network address; Obtain service message;

Described Unit the 4th also is used for the network address according to the tunnel source of described standby communication link according to the described service message of GRE protocol encapsulation; Tunnel by described standby communication link send described local network device according to the network address of the tunnel source of described standby communication link according to the described service message of gre tunneling protocol encapsulation to described second network equipment.

In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the tenth kind of possible implementation, described local network device is set up main communication link corresponding to two layer tunnel L2TP Tunnel agreement by described main outgoing interface and described second network equipment; Described local network device is set up standby communication link corresponding to L2TP Tunnel agreement by described standby outgoing interface with described second network equipment;

Described Unit the 4th, concrete being used for carried out the negotiation of L2TP protocol tunnel by described standby communication link and described second network equipment; After determining that described local network device is set up the standby communication link of L2TP Tunnel agreement by described standby outgoing interface and described second network equipment, obtain service message;

In conjunction with the tenth kind of possible implementation of second aspect, in the 11 kind of possible implementation, the network equipment also comprises Unit the 8th, is used for discharging the communication resource that described main communication link takies described local network device.

In conjunction with the 8th kind of possible implementation of second aspect, in the 12 kind of possible implementation, the communication resource that described main communication link takies described local network comprises that described main communication link takies internal memory and the list item resource of described local network device.

In conjunction with the 11 kind of second aspect possible implementation, in the 13 kind of possible implementation, the communication resource that described main communication link takies described local network comprises that described main communication link takies internal memory and the list item resource of described local network device.

The communication means that the embodiment of the present application provides and relevant device, by setting up main communication link at first network equipment and second network equipment room by main outgoing interface, and set up standby communication link at first network equipment and second network equipment room by standby outgoing interface, and then obtain first network equipment by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, and obtain first network equipment by the time-delay of standby communication link transmission User Datagram Protocol message to second network equipment, if with judge first network equipment by standby communication link send the User Datagram Protocol message to the time-delay of second network equipment less than first network equipment by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, then send service message to second network equipment by standby communication link, thereby big or small according to the time-delay of more main communication link and standby communication link transmitting user data packet protocol message, survey the communication quality of the communication tunnel at main communication link and standby communication link place, to choose more excellent communication tunnel, further promote speed and the quality of transfer of data, strengthen the stability of communication system.

Description of drawings

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the flow chart of a kind of communication means of providing of the embodiment of the present application one;

Fig. 2 is the flow chart of the another kind of communication means that provides of the embodiment of the present application one;

Fig. 3 is the flow chart of another communication means of providing of the embodiment of the present application one;

Fig. 4 is a kind of communication link choosing method flow chart based on the expansion of IP protocol security that the embodiment of the present application one provides;

Fig. 5 is a kind of communication link choosing method flow chart based on Generic Routing Encapsulation that the embodiment of the present application one provides;

Fig. 6 is a kind of communication link choosing method flow chart based on two layer tunnel that the embodiment of the present application one provides;

Fig. 7 is the structural representation of a kind of network equipment of providing of the embodiment of the present application two;

Fig. 8 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two;

Fig. 9 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two;

Figure 10 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the application's protection.

See also Fig. 1, Fig. 1 is the flow chart of a kind of communication means of providing of the embodiment of the present application one.The communication means that present embodiment provides is applied to the VPN technologies field, in the VPN network architecture, be provided with some branch network nodes and a root network node, this VPN network architecture can be applied to a group company, the communication network device at parent company place can be used as the root network node in the VPN network architecture, the communication network device that belongs to each branch company place of parent company can be used as each branch network node in the VPN network architecture, thereby, the communication means that present embodiment provides is a kind of choosing method of communication link, particularly, when the network equipment that present embodiment is described local network device and root network node place with the network equipment side at branch network node place carries out uplink communication, choose the method for optimum communication link.In the communication link choosing method that present embodiment provides, local network device is set up main communication link by main outgoing interface and second network equipment, and local network device is set up standby communication link by standby outgoing interface and second network equipment; As shown in Figure 1, the communication means that provides of present embodiment may further comprise the steps:

S110, local network device obtain by main communication link and send the User Datagram Protocol message to the first time-delay of second network equipment.

S120, local network device obtain by standby communication link and send the User Datagram Protocol message to the second time-delay of second network equipment.

S130, judge that the first time-delay is whether greater than the second time-delay.If the first time-delay is not greater than the second time-delay, then process ends.

If S140 the first time-delay sends service message to second network equipment greater than the second time-delay by standby communication link.

The communication link choosing method that the embodiment of the present application provides, by setting up main communication link at local network device and second network equipment room by main outgoing interface, and set up standby communication link at local network device and second network equipment room by standby outgoing interface, and then obtain local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, and obtain local network device by the time-delay of standby communication link transmission User Datagram Protocol message to second network equipment, if with judge local network device by standby communication link send the User Datagram Protocol message to the time-delay of second network equipment less than local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, then send service message to second network equipment by standby communication link, thereby big or small according to the time-delay of more main communication link and standby communication link transmitting user data packet protocol message, survey the communication quality of the communication tunnel at main communication link and standby communication link place, to choose more excellent communication tunnel, further promote speed and the quality of transfer of data, strengthen the stability of communication system.

As a kind of optional execution mode, see also Fig. 2, Fig. 2 is the flow chart of the another kind of communication means that provides of the embodiment of the present application one.As shown in Figure 2, in the communication means that present embodiment provides, specifically can comprise the steps: based on step S110 shown in Figure 1

S111, local network device send the User Datagram Protocol message to second network equipment by main communication link, so that the second network equipment Inspection is behind the User Datagram Protocol message, by main communication link feedback user data pack protocol message to local network device.

The User Datagram Protocol message comprises the first running time of the first message identification and local network device, the first message identification is used for the User Datagram Protocol message that the sign local network device sends by main communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by main communication link to second network equipment to local network device the first running time of local network device.

The User Datagram Protocol message that S112, reception second network equipment feed back by main communication link.

S113, to send to the first message that the User Datagram Protocol message of second network equipment comprises by main communication link marking matched with local network device to judge the first message identification that the User Datagram Protocol message of second network equipment by main communication link feedback comprise.If coupling, execution in step S114 then, if do not mate, process ends then.

S114, second running time of obtaining local network device.

Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by main communication link feedback to local network device the second running time of local network device.

S115, calculate the difference of the second running time and the first running time, and 1/2 times of calculated difference sends User Datagram Protocol message to first of second network equipment as first network equipment by main communication link and delays time.

Local network device sends the User Datagram Protocol message to the first time-delay=(the first running time of the second running time of local network device-local network device)/2 of second network equipment by main communication link.

As a kind of optional execution mode, the communication means that present embodiment provides is before based on step execution in step S111 shown in Figure 2, and the method also comprises:

Local network device is by password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through main communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, see also Fig. 3, Fig. 3 is the flow chart of another communication means of providing of the embodiment of the present application one.As shown in Figure 3, in the communication means that present embodiment provides, specifically comprise the steps: based on the step S120 of Fig. 1 or Fig. 2

S121, local network device send the User Datagram Protocol message to second network equipment by standby communication link, so that the second network equipment Inspection is behind the User Datagram Protocol message, by standby communication link feedback user data pack protocol message to local network device.

The User Datagram Protocol message comprises the 3rd running time of the second message identification and local network device, the second message identification is used for the User Datagram Protocol message that User Datagram Protocol message that the sign local network device sends by main communication link and local network device send by standby communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by standby communication link to second network equipment to local network device the 3rd running time of local network device.

The User Datagram Protocol message that S122, reception second network equipment feed back by standby communication link;

S123, judge that the second message that User Datagram Protocol message that whether the second message identification that the User Datagram Protocol message of second network equipment by standby communication link feedback comprise sends to second network equipment by standby communication link with local network device comprises is marking matched.If coupling, execution in step S124 then, if do not mate, process ends then.

S124, the 4th running time of obtaining local network device.

Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by standby communication link feedback to local network device the 4th running time of local network device.

S125, calculate the difference of the 4th running time and the 3rd running time, and 1/2 times of calculated difference sends User Datagram Protocol message to second of second network equipment as first network equipment by standby communication link and delays time.

Local network device sends the User Datagram Protocol message to the second time-delay=(the 3rd running time of the 4th running time of local network device-local network device)/2 of second network equipment by standby communication link.

As a kind of optional execution mode, carry out before the step S121 shown in Figure 3, namely local network device sends the User Datagram Protocol message to the second network equipment by standby communication link, and the method also comprises:

Local network device is by password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through standby communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, based on step S111 shown in Figure 2, local network device sends User Datagram Protocol message to second network equipment by main communication link and specifically can comprise:

Local network device sends the User Datagram Protocol message to second network equipment by main communication link respectively in N timing; Wherein, the first message identification also is used for the timing that sign sends the User Datagram Protocol message, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by main communication link to second network equipment the first running time of local network device.

It is that local network device sends the User Datagram Protocol message to the mean value of the time-delay of second network equipment by main communication link respectively in N timing that local network device is delayed time to first of second network equipment by main communication link transmission User Datagram Protocol message.

As a kind of optional execution mode, based on step S121 shown in Figure 3, local network device sends User Datagram Protocol message to second network equipment by standby communication link and specifically can comprise:

Local network device sends the User Datagram Protocol message to second network equipment by standby communication link respectively in N timing; Wherein, the second message identification also is used for the timing that sign sends the User Datagram Protocol message, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by standby communication link to second network equipment the 3rd running time of local network device.

Local network device passes through to pass through respectively to send the User Datagram Protocol message to the mean value of the time-delay of second network equipment for communication link in N timing for local network device for communication link transmission User Datagram Protocol message to the second time-delay of second network equipment.

As a kind of optional execution mode, see also Fig. 4, Fig. 4 is a kind of communication link choosing method flow chart based on the expansion of IP protocol security that the embodiment of the present application one provides.In the communication means that present embodiment provides, local network device can be set up IP protocol security expansion (InternetProtocol Security Extensions, IPSEC) main communication link that tunnel protocol is corresponding by main outgoing interface and second network equipment; Local network device can be set up standby communication link corresponding to IPSEC tunnel protocol with second network equipment by standby outgoing interface, then as shown in Figure 4, based on step S140 shown in Figure 1, namely sends service message to second network equipment by standby communication link, comprising:

S141, local network device carry out the negotiation of IPSEC protocol tunnel by standby communication link and second network equipment;

S142, judge that whether local network device successfully set up the standby communication link of IPSEC tunnel protocol with second network equipment by standby outgoing interface.If, execution in step S143 then, if not, process ends then.

S143, local network device obtain service message.

S144, local network device pass through the standby outgoing interface outgoing traffic message at standby communication link place to second network equipment.

As a kind of optional execution mode, based on step S143 shown in Figure 4, namely local network device obtains after the service message of local network device by the data of main communication link transmission, and method also comprises:

Local network device discharges the communication resource that main communication link takies local network device.

As a kind of optional execution mode, local network device discharges after the communication resource that main communication link takies local network device, can send an indication to second network equipment, so that second network equipment discharges the communication resource that main communication link takies second network equipment according to indication.In the present embodiment, second network equipment can discharge the communication resource that main communication link takies second network equipment according to the indication that local network device sends, also can according to after not receiving the message or relevant information of main communication link transmission within the timing of second network equipment, then discharge the communication resource that main communication link takies second network equipment.

As a kind of optional execution mode, see also Fig. 5, Fig. 5 is a kind of communication link choosing method flow chart based on Generic Routing Encapsulation that the embodiment of the present application one provides.In the communication means that present embodiment provides, local network device is set up main communication link corresponding to generic route encapsulation (GenericRouting Encapsulatio, GRE) agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to GRE agreement by standby outgoing interface with second network equipment, then as shown in Figure 5, based on step S140 shown in Figure 1, namely sends service message to second network equipment by standby communication link, comprising:

S151, local network device obtain the network address of the tunnel source of standby communication link, as the primary network address.

S152, local network device obtain service message.

The network address of the tunnel source of S153, the standby communication link of local network device basis is according to GRE protocol encapsulation service message.

S154, the local network device tunnel by standby communication link send local network device according to the network address of the tunnel source of standby communication link according to the service message of gre tunneling protocol encapsulation to second network equipment.

As a kind of optional execution mode, see also Fig. 6, Fig. 6 is a kind of communication link choosing method flow chart based on two layer tunnel that the embodiment of the present application one provides.In the communication means that present embodiment provides, local network device is set up main communication link corresponding to two layer tunnel (Layer 2 TunnelingProtocol, L2TP) agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to L2TP Tunnel agreement by standby outgoing interface with second network equipment, then as shown in Figure 6, based on step S140 shown in Figure 1, namely sends service message to second network equipment by standby communication link, comprising:

S161, local network device carry out the negotiation of L2TP protocol tunnel by standby communication link and second network equipment.

S162, judge that whether local network device successfully set up the standby communication link of L2TP Tunnel agreement with second network equipment by standby outgoing interface.If, execution in step S163 then, if not, process ends then.

S163, local network device obtain service message.

S164, local network device pass through the standby outgoing interface outgoing traffic message at standby communication link place to second network equipment.

As a kind of optional execution mode, based on step S163 shown in Figure 6, namely local network device obtains after the service message, and method also comprises:

As a kind of optional execution mode, the communication resource that main communication link takies local network device comprises that main communication link takies internal memory and the list item resource of local network device.

As a kind of optional execution mode, the communication resource that main communication link takies second network equipment comprises that main communication link takies internal memory and the list item resource of second network equipment.

See also Fig. 7, Fig. 7 is the structural representation of a kind of network equipment of providing of the embodiment of the present application two.The network equipment that present embodiment provides is the network equipment that is applied to the branch node place in the VPN network, this network equipment is set up main communication link by main outgoing interface and second network equipment, and the network equipment is set up standby communication link by standby outgoing interface and second network equipment; As shown in Figure 7, the local network device that provides of present embodiment comprises: first module 71, second unit 72, the 3rd unit 73 and the 4th unit 74.

Wherein, first module 71 is used for obtaining by first time-delay of main communication link transmission User Datagram Protocol message to second network equipment.

Second unit 72 is used for obtaining by second time-delay of standby communication link transmission User Datagram Protocol message to second network equipment.

The 3rd unit 73 is used for judging that whether the first time-delay is greater than the second time-delay.

The 4th unit 74 is used for judging that according to the 3rd unit 73 the first time-delay greater than the judged result of the second time-delay, sends service message to second network equipment by standby communication link.

The network equipment that present embodiment provides, set up main communication link with the second network equipment room by main outgoing interface, and pass through standby outgoing interface with the second network equipment room and set up standby communication link, and then obtain local network device by first module 71 and send the User Datagram Protocol message to the time-delay of second network equipment by main communication link, and obtain local network device by second unit 72 and pass through standby communication link transmission User Datagram Protocol message to the time-delay of second network equipment, if with judge by the 3rd unit 73 local network devices by standby communication link send the User Datagram Protocol message to the time-delay of second network equipment less than local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, then send service message to second network equipment by the 4th unit 74 by standby communication link, thereby big or small according to the time-delay of more main communication link and standby communication link transmitting user data packet protocol message, survey the communication quality of the communication tunnel at main communication link and standby communication link place, to choose more excellent communication tunnel, further promote speed and the quality of transfer of data, strengthen the stability of communication system.

As a kind of optional execution mode, see also Fig. 8, Fig. 8 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two.As shown in Figure 8, based on first module shown in Figure 7, the first module that present embodiment provides comprises: the first subelement 711, the second subelement 712, the 3rd subelement 713, the 4th subelement 714 and the 5th subelement 715.

The first subelement 711, be used for sending the User Datagram Protocol message to second network equipment by main communication link, so that the second network equipment Inspection is behind the User Datagram Protocol message, by main communication link feedback user data pack protocol message to local network device; The User Datagram Protocol message comprises the first running time of the first message identification and local network device, the first message identification is used for the User Datagram Protocol message that the sign local network device sends by main communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by main communication link to second network equipment to local network device the first running time of local network device.

The second subelement 712 is used for receiving second network equipment by the User Datagram Protocol message of main communication link feedback.

The 3rd subelement 713, to send to the first message that the User Datagram Protocol message of second network equipment comprises by main communication link marking matched with local network device be used for to determine the first message identification that the User Datagram Protocol message of second network equipment by main communication link feedback comprise.

The 4th subelement 714, be used for determining that according to the 3rd subelement 713 the first message identification that the User Datagram Protocol message of second network equipment by main communication link feedback comprises and local network device send to the marking matched result of the first message that the User Datagram Protocol message of second network equipment comprises, second running time of obtaining local network device by main communication link; Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by main communication link feedback to local network device the second running time of local network device.

The 5th subelement 715 be used for to calculate the difference of the second running time and the first running time, and 1/2 times of calculated difference sends User Datagram Protocol message to first of second network equipment as first network equipment by main communication link and delays time.

As a kind of optional execution mode, this network equipment also comprises Unit the 5th, be used for by password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through main communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, see also Fig. 9, Fig. 9 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two.As shown in Figure 9, based on the second unit shown in Fig. 7 or Fig. 8, the second unit that present embodiment provides specifically comprises: the 6th subelement 721, the 7th subelement 722, the 8th subelement 723, the 9th subelement 724 and the tenth subelement 725.

Wherein, the 6th subelement 721, be used for sending the User Datagram Protocol message to second network equipment by standby communication link so that the second network equipment Inspection is behind the User Datagram Protocol message, by standby communication link feedback user data pack protocol message to local network device; The User Datagram Protocol message comprises the 3rd running time of the second message identification and local network device, the second message identification is used for the User Datagram Protocol message that the sign local network device sends by standby communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by standby communication link to second network equipment to local network device the 3rd running time of local network device.

The 7th subelement 722 is used for receiving second network equipment by the User Datagram Protocol message of standby communication link feedback.

The 8th subelement 723 is used for determining whether second network equipment is marking matched by the second message that the User Datagram Protocol message that sends to second network equipment for communication link comprises with local network device by the second message identification that the User Datagram Protocol message for the communication link feedback comprises.

The 9th subelement 724, be used for the marking matched result of the second message that User Datagram Protocol message that whether the second message identification that the second network equipment determined according to the 8th subelement User Datagram Protocol message by standby communication link feedback comprises send to second network equipment by standby communication link with local network device comprises, the 4th running time of obtaining local network device; Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by standby communication link feedback to local network device the 4th running time of local network device.

The tenth subelement 725 be used for to calculate the difference of the 4th running time and the 3rd running time, and calculates 1/2 times of this difference and send User Datagram Protocol message to second of second network equipment as first network equipment by standby communication link and delay time.

As a kind of optional execution mode, this network equipment also comprises Unit the 6th, be used for by password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through standby communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, the first subelement specifically is used for, and sends the User Datagram Protocol message to second network equipment by main communication link respectively in N timing; Wherein, the first message identification also is used for sign and sends the User Datagram Protocol message, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by main communication link to second network equipment the first running time of local network device.

As a kind of optional execution mode, the 6th subelement specifically is used for, and sends the User Datagram Protocol message to second network equipment by standby communication link respectively in N timing; Wherein, the second message identification also is used for the timing that sign sends the User Datagram Protocol message, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by standby communication link to second network equipment the 3rd running time of local network device.

As a kind of optional execution mode, local network device is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to IPSEC tunnel protocol by standby outgoing interface with second network equipment.

Unit the 4th, concrete being used for carried out the negotiation of IPSEC protocol tunnel by standby communication link with second network equipment, determines that local network device by after setting up the standby communication link of IPSEC tunnel protocol for outgoing interface and second network equipment, obtains service message.

Unit the 4th also is used for passing through the standby outgoing interface outgoing traffic message at standby communication link place to second network equipment.

As a kind of optional execution mode, the network equipment also comprises Unit the 7th, is used for discharging the communication resource that main communication link takies local network device after Unit the 4th obtains service message.

As a kind of optional execution mode, local network device is set up main communication link corresponding to generic route encapsulation GRE agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to GRE agreement by standby outgoing interface with second network equipment.

Unit the 4th, the concrete network address that is used for obtaining for the tunnel source of communication link is as the primary network address; Obtain service message.

Unit the 4th also is used for, according to the network address of the tunnel source of standby communication link according to GRE protocol encapsulation service message; Tunnel by standby communication link send local network device according to the network address of the tunnel source of standby communication link according to the service message of gre tunneling protocol encapsulation to second network equipment.

As a kind of optional execution mode, local network device is set up main communication link corresponding to two layer tunnel L2TP Tunnel agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to L2TP Tunnel agreement by standby outgoing interface with second network equipment.

Unit the 4th, concrete being used for carried out the negotiation of L2TP protocol tunnel by standby communication link and second network equipment; After determining that local network device is set up the standby communication link of L2TP Tunnel agreement by standby outgoing interface and second network equipment, obtain service message.

Unit the 4th also is used for, and the standby outgoing interface outgoing traffic message by standby communication link place is to second network equipment.

As a kind of optional execution mode, the network equipment also comprises Unit the 8th, is used for discharging the communication resource that main communication link takies local network device after Unit the 4th obtains service message.

As a kind of optional execution mode, the communication resource that main communication link takies local network comprises that main communication link takies internal memory and the list item resource of local network device.

See also Figure 10, Figure 10 is the structural representation of the another kind of network equipment that provides of the embodiment of the present application two.As shown in figure 10, the local network device that present embodiment provides comprises: comprising: input unit 101, output device 102, memory 103 and processor 104, wherein, storage batch processing code in the memory 103, and processor 104 is used for calling the program code of memory 103 storages, is used for carrying out following operation:

Obtain by main communication link and send the User Datagram Protocol message to the first time-delay of second network equipment.

Obtain by standby communication link and send the User Datagram Protocol message to the second time-delay of second network equipment.

Judge that whether the first time-delay is greater than the second time-delay.

If the first time-delay greater than the second time-delay, sends service message to second network equipment by standby communication link.

The network equipment that present embodiment provides, by setting up main communication link with the second network equipment room by main outgoing interface, and pass through standby outgoing interface with the second network equipment room and set up standby communication link, and then by processor execution correlation step, send the User Datagram Protocol message to the time-delay of second network equipment to obtain local network device by main communication link, and obtain local network device by the time-delay of standby communication link transmission User Datagram Protocol message to second network equipment, if with judge local network device by standby communication link send the User Datagram Protocol message to the time-delay of second network equipment less than local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, then send service message to second network equipment by standby communication link, thereby big or small according to the time-delay of more main communication link and standby communication link transmitting user data packet protocol message, survey the communication quality of the communication tunnel at main communication link and standby communication link place, to choose more excellent communication tunnel, further promote speed and the quality of transfer of data, strengthen the stability of communication system.

As a kind of optional execution mode, this processor execution is obtained local network device and specifically can be carried out according to following step by main communication link transmission User Datagram Protocol message to the step of the first time-delay of second network equipment:

Send the User Datagram Protocol message to second network equipment by main communication link so that the second network equipment Inspection is behind the User Datagram Protocol message, by main communication link feedback user data pack protocol message to local network device; The User Datagram Protocol message comprises the first running time of the first message identification and local network device, the first message identification is used for the User Datagram Protocol message that the sign local network device sends by main communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by main communication link to second network equipment to local network device the first running time of local network device.

Receive second network equipment by the User Datagram Protocol message of main communication link feedback.

Determine the first message identification that the User Datagram Protocol message of second network equipment by main communication link feedback comprises and local network device by main communication link send to the first message that the User Datagram Protocol message of second network equipment comprises marking matched after, second running time of obtaining local network device; Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by main communication link feedback to local network device the second running time of local network device.

Calculate the difference of the second running time and the first running time, and 1/2 times of calculated difference sends the User Datagram Protocol message to the first time-delay of second network equipment as first network equipment by main communication link.

As a kind of optional execution mode, this processor is carried out by main communication link transmission User Datagram Protocol message to the step of second network equipment, also carries out following step:

By password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through main communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, this processor is carried out and is obtained local network device by specifically carrying out according to following step for communication link transmission User Datagram Protocol message to the step of the second time-delay of second network equipment:

Send the User Datagram Protocol message to second network equipment by standby communication link so that the second network equipment Inspection is behind the User Datagram Protocol message, by standby communication link feedback user data pack protocol message to local network device; The User Datagram Protocol message comprises the 3rd running time of the second message identification and local network device, the second message identification is used for the User Datagram Protocol message that the sign local network device sends by standby communication link, and be that local network device brings into operation time period when sending User Datagram Protocol message by standby communication link to second network equipment to local network device the 3rd running time of local network device.

Receive second network equipment by the User Datagram Protocol message of standby communication link feedback.

After determining that the second message that the second message identification that the User Datagram Protocol message of second network equipment by standby communication link feedback comprise and local network device comprise by the User Datagram Protocol message that sends to second network equipment for communication link is marking matched, the 4th running time of obtaining local network device; Be that local network device brings into operation time period when receiving the User Datagram Protocol message of second network equipment by standby communication link feedback to local network device the 4th running time of local network device.

Calculate the difference of the 4th running time and the 3rd running time, and 1/2 times of calculated difference sends the User Datagram Protocol message to the second time-delay of second network equipment as first network equipment by standby communication link.

As a kind of optional execution mode, this processor is carried out by standby communication link and is sent the User Datagram Protocol message to the step of second network equipment, also is used for carrying out following step:

By password encryption User Datagram Protocol message, so that the second network equipment Inspection is behind the User Datagram Protocol message, the User Datagram Protocol message is decrypted, if successful decryption then passes through standby communication link feedback user data pack protocol message to local network device.

As a kind of optional execution mode, this processor is carried out by main communication link transmission User Datagram Protocol message to the step of second network equipment and specifically can be carried out according to following step:

In N timing, send the User Datagram Protocol message to second network equipment by main communication link respectively; Wherein, the first message identification also is used for the timing of the User Datagram Protocol message of sign transmission, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by main communication link to second network equipment the first running time of local network device.

As a kind of optional execution mode, this processor is carried out by standby communication link transmission User Datagram Protocol message to the step of second network equipment and specifically can be carried out according to following step:

In N timing, send the User Datagram Protocol message to second network equipment by standby communication link respectively; Wherein, the second message identification also is used for the timing that sign sends the User Datagram Protocol message, and be that local network device brought into operation to the time period of local network device when the moment regularly sends the User Datagram Protocol message by standby communication link to second network equipment the 3rd running time of local network device.

By in N timing, passing through respectively to send the User Datagram Protocol message to the mean value of the time-delay of second network equipment for communication link for local network device for communication link transmission User Datagram Protocol message to the second time-delay of second network equipment.

As a kind of optional execution mode, local network device is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to IPSEC tunnel protocol by standby outgoing interface with second network equipment, and then this processor is carried out by standby communication link transmission service message to the step of second network equipment and specifically can be carried out according to following step:

Carry out the negotiation of IPSEC protocol tunnel by standby communication link and second network equipment.

After determining that local network device is set up the standby communication link of IPSEC tunnel protocol by standby outgoing interface and second network equipment, local network device obtains service message.

Standby outgoing interface outgoing traffic message by standby communication link place is to second network equipment.

As a kind of optional execution mode, this processor is carried out and is obtained after the step of service message, also carries out following step:

Discharge the communication resource that main communication link takies local network device.

As a kind of optional execution mode, local network device is set up main communication link corresponding to generic route encapsulation GRE agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to GRE agreement by standby outgoing interface with second network equipment, and then this processor is carried out by standby communication link transmission service message to the step of second network equipment and specifically can be carried out according to following step:

Obtain the network address of the tunnel source of standby communication link, as the primary network address.

Obtain service message.

According to the network address of the tunnel source of standby communication link according to GRE protocol encapsulation service message.

Tunnel by standby communication link send local network device according to the network address of the tunnel source of standby communication link according to the service message of gre tunneling protocol encapsulation to second network equipment.

As a kind of optional execution mode, local network device is set up main communication link corresponding to two layer tunnel L2TP agreement by main outgoing interface and second network equipment; Local network device is set up standby communication link corresponding to L2TP Tunnel agreement by standby outgoing interface with second network equipment, and then this processor is carried out by standby communication link transmission service message to the step of second network equipment and specifically can be carried out according to following step:

Carry out the negotiation of L2TP protocol tunnel by standby communication link and second network equipment.

After determining that local network device is set up the standby communication link of L2TP Tunnel agreement by standby outgoing interface and second network equipment, obtain service message.

As a kind of optional execution mode, this processor is carried out and is obtained after the step of service message, also can carry out following step:

To sum up, the communication means that the embodiment of the present application provides and relevant device, by setting up main communication link at local network device and second network equipment room by main outgoing interface, and set up standby communication link at local network device and second network equipment room by standby outgoing interface, and then obtain local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, and obtain local network device by the time-delay of standby communication link transmission User Datagram Protocol message to second network equipment, if with judge local network device by standby communication link send the User Datagram Protocol message to the time-delay of second network equipment less than local network device by the time-delay of main communication link transmission User Datagram Protocol message to second network equipment, then send service message to second network equipment by standby communication link, thereby big or small according to the time-delay of more main communication link and standby communication link transmitting user data packet protocol message, survey the communication quality of the communication tunnel at main communication link and standby communication link place, to choose more excellent communication tunnel, further promote speed and the quality of transfer of data, strengthen the stability of communication system.

In several embodiment that the application provides, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of module or unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or module can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, the shown or coupling each other discussed or direct-coupling or communication connection can be indirect coupling or the communication connections by some interfaces, device, module or unit, also can be electric, machinery or other form connect.

Module or unit as the separating component explanation can or can not be physically to separate also, the parts that show as module or unit can be or also can not be physical module or unit, namely can be positioned at a place, perhaps also can be distributed on a plurality of mixed-media network modules mixed-medias or the unit.Can select according to the actual needs wherein some or all of module or the unit purpose that realizes the embodiment of the present application scheme.

In addition, each functional module in each embodiment of the application or unit can be integrated in a processing module or the unit, also can be that the independent physics in modules or unit exists, also can be that two or more modules or unit are integrated in a module or the unit.The form that above-mentioned integrated module or unit both can adopt hardware realizes, also can adopt the form of SFU software functional unit to realize.

If above-mentioned integrated module or unit are realized with the form of software function module or unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, the part that the application's technical scheme contributes to prior art in essence in other words, perhaps all or part of form that can software product of this technical scheme embodies, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of each embodiment method of the application.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.

More than; it only is the application's embodiment; but the application's protection range is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the application discloses; can expect easily modification or the replacement of various equivalences, these modifications or replacement all should be encompassed within the application's the protection range.Therefore, the application's protection range should be as the criterion with the protection range of claim.

Claims

1. a communication means is characterized in that, first network equipment is set up main communication link by main outgoing interface and second network equipment, and described first network equipment is set up standby communication link by standby outgoing interface and described second network equipment; Described method comprises:

2. communication means as claimed in claim 1 is characterized in that, describedly obtains described first network equipment and sends the User Datagram Protocol message to the first time-delay of described second network equipment by described main communication link, comprising:

3. communication means as claimed in claim 2 is characterized in that, described first network equipment sends the User Datagram Protocol message to the described second network equipment by described main communication link, and described method also comprises:

4. such as claim 1 or 2 or 3 described communication meanss, it is characterized in that,

Describedly obtain described first network equipment and send described User Datagram Protocol message to the second time-delay of described second network equipment by described standby communication link, comprising:

5. communication means as claimed in claim 4 is characterized in that, described first network equipment sends the User Datagram Protocol message to the described second network equipment by described standby communication link, and described method also comprises:

6. communication means as claimed in claim 2 is characterized in that,

Described first network equipment sends User Datagram Protocol message to described second network equipment by described main communication link and specifically comprises:

7. communication means as claimed in claim 4 is characterized in that,

Described first network equipment sends User Datagram Protocol message to described second network equipment by described standby communication link and specifically comprises:

8. such as claim 1 or 2 or 3 described communication meanss, it is characterized in that,

Described first network equipment is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to IPSEC tunnel protocol by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

9. communication means as claimed in claim 8 is characterized in that, described first network equipment obtains after the described service message, and described method also comprises:

10. such as claim 1 or 2 or 3 described communication meanss, it is characterized in that,

Described first network equipment is set up main communication link corresponding to generic route encapsulation GRE agreement by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to GRE agreement by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

Described first network equipment obtains service message;

11. such as claim 1 or 2 or 3 described communication meanss, it is characterized in that,

Described first network equipment is set up main communication link corresponding to two layer tunnel L2TP agreement by described main outgoing interface and described second network equipment; Described first network equipment is set up standby communication link corresponding to L2TP Tunnel agreement by described standby outgoing interface with described second network equipment; Described by sending service message to second network equipment for communication link, comprising:

12. communication means as claimed in claim 11 is characterized in that, described first network equipment obtains after the described service message, and described method also comprises:

13. communication means as claimed in claim 9 is characterized in that, the communication resource that described main communication link takies described first network equipment comprises that described main communication link takies internal memory and the list item resource of described first network equipment.

14. communication means as claimed in claim 12 is characterized in that, the communication resource that described main communication link takies described first network equipment comprises that described main communication link takies internal memory and the list item resource of described first network equipment.

15. a network equipment is characterized in that, the described network equipment is set up main communication link by main outgoing interface and second network equipment, and the described network equipment is set up standby communication link by standby outgoing interface and described second network equipment; Described local network device comprises:

16. the network equipment as claimed in claim 15 is characterized in that, described first module comprises:

17. the network equipment as claimed in claim 16 is characterized in that, also comprises:

18. such as claim 15 or the 16 or 17 described network equipments, it is characterized in that described second unit comprises:

The tenth subelement, be used for calculating the difference of described the 4th running time and described the 3rd running time, and calculate 1/2 times of described difference and send User Datagram Protocol message to second of described second network equipment as described first network equipment by described standby communication link and delay time.

19. the network equipment as claimed in claim 18 also comprises:

20. the network equipment as claimed in claim 16 is characterized in that, described the first subelement specifically is used for, and sends the User Datagram Protocol message to described second network equipment by described main communication link respectively in N timing; Wherein, described the first message identification also is used for the timing that sign sends described User Datagram Protocol message;

21. the network equipment as claimed in claim 18 is characterized in that, described the 6th subelement specifically is used for, and sends the User Datagram Protocol message to described second network equipment by described standby communication link respectively in N timing; Wherein, described the second message identification also is used for the timing that sign sends described User Datagram Protocol message;

22., it is characterized in that described local network device is set up main communication link corresponding to IP protocol security expansion IPSEC tunnel protocol by described main outgoing interface and described second network equipment such as claim 15 or the 16 or 17 described network equipments; Described local network device is set up standby communication link corresponding to IPSEC tunnel protocol by described standby outgoing interface with described second network equipment;

23. the network equipment as claimed in claim 22 is characterized in that, also comprises Unit the 7th, is used for discharging the communication resource that described main communication link takies described local network device.

24., it is characterized in that described local network device is set up main communication link corresponding to generic route encapsulation GRE agreement by described main outgoing interface and described second network equipment such as claim 15 or the 16 or 17 described network equipments; Described local network device is set up standby communication link corresponding to GRE agreement by described standby outgoing interface with described second network equipment;

25. such as claim 15 or the 16 or 17 described network equipments, it is characterized in that,

Described local network device is set up main communication link corresponding to two layer tunnel L2TP Tunnel agreement by described main outgoing interface and described second network equipment; Described local network device is set up standby communication link corresponding to L2TP Tunnel agreement by described standby outgoing interface with described second network equipment;

26. the network equipment as claimed in claim 25 is characterized in that, also comprises Unit the 8th, is used for discharging the communication resource that described main communication link takies described local network device.

27. the network equipment as claimed in claim 23 is characterized in that, the communication resource that described main communication link takies described local network comprises that described main communication link takies internal memory and the list item resource of described local network device.

28. the network equipment as claimed in claim 26 is characterized in that, the communication resource that described main communication link takies described local network comprises that described main communication link takies internal memory and the list item resource of described local network device.