CN101459527B - Method, device and system for checking data links and publishing the same as flow engineering links - Google Patents
Method, device and system for checking data links and publishing the same as flow engineering links Download PDFInfo
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Abstract
The invention discloses a checking method of data link protecting relationship, which comprises receiving protecting relationship verified message from a far-end node in a data link by the far-end node in the data link, checking the protection attribute carried by the relationship verified messages and the protection attribute which is locally allocated by the far-end node, sending out success verification response information to the far-end node if the checking is consistent, and binding the data link to be a flow engineering link according to the allocated protection type. The invention further discloses a method, a device and a system for distributing the data link to be a flow engineering link. The check of binding and protecting relationship of a TE link is achieved through adopting the checking method.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of protection relation of checking data link and it is issued as method, the Apparatus and system of flow engineering link.
Background technology
Conventional optical network, as SDH (Synchronous Digital Hierarchy) (SDH, Synchronous Digital Hierarchy), synchronous optical network (SONET, Synchronous Optical Network) and optical transfer network (OTN, OpticalTransport Network), the main network construction form that adopts Self-healing Rings, bandwidth availability ratio is not high.And conventional optical network SDH and SONET carry out static configuration by webmaster, and its configuration is comparatively complicated, consuming time and bandwidth availability ratio is not high.Along with demands such as multi-service, high bandwidth, high survivability, quick connection provide, make that the existing network architecture and networking mode are impacted, network topology will from traditional be to act the leading role to enter net with the looped network based on netted (Mesh), network connects presentation mode and will carry out the transition to soft permanent connection and exchange based on signaling from the permanent connection with static configuration and be connected to the master.This novel optical transport network is by International Telecommunication Association-Standardization Sector (ITU-T, International Telecommunication standardization sector) is called " ASON (ASON, Automatically Switched Optical Network) ".
Compare with traditional optical transfer network, the topmost difference of ASON is exactly to transmit on the plane at light introduces control plane, and the management system of traditional optical transfer network is developed into novel multi-layer facial canal reason structure based on management plane, control plane and transmission plane.Control plane is one of topmost feature of ASON, and it uses GMPLS Control Protocol family to realize that this protocol suite comprises LMP Link Manager Protocol, Routing Protocol and signaling protocol.
Control plane at first will be finished the discovery of internodal link annexation, and this process adopts LMP Link Manager Protocol (LMP, Link Manager Protocol) to realize usually.The LMP agreement obtains link informations such as connection type that this link supports and number of resources by the control message switching on the basis of adjacency discovery then.LMP can bind flow engineering link (TE Link, TrafficEngineering Link) to some data link according to customer strategy, and carries out verification.The automatic local node TE Link information that obtains of finding of LMP is passed through Routing Protocol, be published to other nodes in the control domain as the OSPF (OSPF-TE) of the opening of traffic engineering expansion, all nodes of network all obtain all nodes and the Link State of the identical place control domain of portion like this.Based on these TE routing iinformations, when network management system or customer requirements network were set up a network connection service, the Web portal node of connection just can carry out path computing, obtains connecting the link sequences that needs process; By signaling protocol,, realize end-to-end establishment of connection then as RSVP-TE.
In the prior art, for link with protection attribute, as has a data link of 1+1 or 1: 1, when being issued as TE Link, need the operator to carry out artificial policy configurations (bind a TE Link as which data link of concrete appointment, how many its bandwidth is issued as, or the like) by webmaster, LMP binds these data link according to configured strategy, then these TE Links is carried out verification; And for the link protection attribute in the configuration of single station, discovery can only verification protection type automatically at present.
The present inventor finds that there is following shortcoming in prior art when enforcement is of the present invention:
For have specify the protection attribute data link when being issued as TE Link, protection relation that can not verification reality concerns that for protection the situation of configuration error can't verify.
Summary of the invention
The embodiment of the invention provides a kind of checking data link protection relation and with its method, Apparatus and system that is issued as flow engineering link, can realize the binding and the checking of protection relation of TE Link.
The embodiment of the invention provides a kind of method of calibration of data link protection relation, comprising:
Distant-end node in the data link receives the protection relation checking message from this end node;
The protection attribute that described distant-end node carries described protection relation checking message carries out verification with the local protection attribute that disposes;
If the verification unanimity then sends to described end node and is proved to be successful response message, and according to the protection type of its configuration described data link bound flow engineering link.
The embodiment of the invention also provides a kind of data link has been issued as the method for flow engineering link, comprising:
Distant-end node in the data link receives from this end node and sends protection relation checking message;
The protection attribute that distant-end node carries described protection relation checking message carries out verification with the local protection attribute that disposes, and check results is returned to described end node by authentication response information;
If authentication response information is for being proved to be successful response message, this end node and distant-end node are bound flow engineering link according to the protection type with described data link, and issue this flow engineering link.
Correspondingly, the embodiment of the invention provides a kind of node in data link, comprising:
The checking message transmission module is used for sending protection relation checking message to the distant-end node of its place data link, and described protection relation checking message comprises the protection type of local terminal node configuration, and the relation of the protection between the link;
The response message receiver module is used to receive the authentication response information from described distant-end node;
The data link binding module, described response message receiver module receive described from distant-end node be proved to be successful response message after, according to the configuration the described data link of protection type bind flow engineering link;
The link release module is used to issue described flow engineering link.
The embodiment of the invention also provides a kind of node in data link, comprising:
Checking message sink module is used to receive the protection relation checking message from other nodes transmissions of its place data link;
Protection relational checking module, whether be used for the protection attribute that the described protection relation checking of verification message carries consistent with the local protection attribute that disposes;
The data link binding module is used for when the check results of described protection relational checking module is unanimity, the time, according to the protection type of this node configuration described data link is bound flow engineering link;
The link release module is used to issue described flow engineering link;
The response message sending module is used for the check results of described protection relational checking module is returned to the node that sends described protection relation checking message by authentication response information.
The system that data link is issued as flow engineering link that the embodiment of the invention provides comprises:
This end node is used for sending protection relation checking message to the distant-end node of its place data link;
Distant-end node is used for the described protection attribute that carries from the protection relation checking message of this end node is carried out verification with the local protection attribute that disposes, and check results is returned to described end node by authentication response information;
If authentication response information is for being proved to be successful response message, described end node and distant-end node are bound flow engineering link according to the protection type with described data link, and issue this flow engineering link.
Implement embodiments of the invention, have following beneficial effect:
For data link,, can described data link be bound flow engineering link according to the protection type to the data link that the configuration of protection relation is correct by the protection relation of this method verification msg link at single station configuration protection attribute;
And; can verify the protection relation of TE Link or data link; concern mistake if verify out protection; then concern the configuration error warning to the webmaster advertisement protection; point out detailed error reason; make the keeper can clear and definite fault location, in time find mistake, avoid influencing follow-up business and set up or recover.
Description of drawings
Fig. 1 is the composition schematic diagram of the flow engineering link system that data link is issued as that provides of the embodiment of the invention;
Fig. 2 is the composition schematic diagram of this end node of providing of the embodiment of the invention;
Fig. 3 is the composition schematic diagram of the distant-end node that provides of the embodiment of the invention;
Fig. 4 is the composition schematic diagram of the response message sending module in the distant-end node that provides of the embodiment of the invention;
Fig. 5 is the schematic flow sheet of the method for calibration embodiment of the data link protection relation that provides of the embodiment of the invention;
Fig. 6 is the schematic flow sheet of first embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention;
Fig. 7 is the schematic flow sheet of second embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention;
Fig. 8 is the schematic flow sheet of the 3rd embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention;
Fig. 9 be the embodiment of the invention provide data link is issued as the schematic diagram that the protection of data link in the flow engineering link system concerns configuration error.
Embodiment
The embodiment of the invention provides a kind of checking data link protection relation and it is issued as method, the Apparatus and system of flow engineering link, by the related protocol of expansion link management, realizes the binding and the checking of protection relation of TE Link.
Referring to Fig. 1, the composition schematic diagram of the flow engineering link system that data link is issued as that provides for the embodiment of the invention;
As shown in Figure 1; at first in this end node 1 configuration 1+1 link protection type; wherein IfA3 protects IfA1; in distant-end node 2 configuration 1+1 link protection types; wherein IfB3 protects IfB1, and the IfA1 of this end node 1, IfA2, IfA3 are communicated with IfB1, IfB2, the IfB3 of distant-end node 2 respectively, forms link; the link that arrives IfB3 as IfA3 is the protection link, and IfA1 is protected link to the link of IfB1.
Described end node 1 is used for sending protection relation checking message to the distant-end node 2 of its place data link; Described protection relation checking message comprises the protection type of local terminal node configuration, and the relation of the protection between the link; This end node 1 is described 1+1 protection type, and the link of link protection relation: IfA3 to the link protection IfA1 of IfB3 to IfB1, is carried at protection and concerns and verify in the message and send to distant-end node 2.
Distant-end node 2 is used for the described protection attribute that carries from the protection relation checking message of this end node 1 is carried out verification with the local protection attribute that disposes, and check results is returned to described end node 1 by authentication response information; In the present embodiment; after distant-end node 2 is received described protection relation checking message; protection type according to configuration; and link protection relation; verify the protection type of carrying in the described protection relation checking message; and the protection of link relation; contrast is found; protection type in the described protection relation checking message also is the 1+1 protection type; and the link that protection relation is IfA3 to the link protection IfA1 of IfB3 to IfB1; 1+1 link protection type with its local configuration; and the protection relationship consistency of IfB3 protection IfB1, then the expression checking is passed through, if with the 1+1 link protection type of its local configuration; and the protection relation of IfB3 protection IfB1 and inconsistent, then the expression checking is not passed through.
If the verification passes, then described distant-end node 2 sends to described end node 1 and is proved to be successful response message, and according to the protection type of its configuration described data link is bound flow engineering link;
Described end node 1 receives the response message that is proved to be successful from distant-end node 2, according to the protection type described data link bound flow engineering link, and for it distributes corresponding TE Link ID, and issue this flow engineering link;
Do not pass through as if checking, then described distant-end node 2 can send the authentication failed response message to this end node 1, and reports protection to concern that the detailed alert message of configuration error is to webmaster.
Need to prove that any one node in the data link can also can be used as distant-end node as this end node, in following examples, describes the situation as this end node and distant-end node respectively.
Referring to Fig. 2, be the composition schematic diagram of this end node 1 of providing of the embodiment of the invention;
Described end node 1 comprises:
Checking message transmission module 11 is used for sending protection relation checking message to the distant-end node 2 of its place data link, and described protection relation checking message comprises the protection type of local terminal node configuration, and the relation of the protection between the data link;
Response message receiver module 12 is used to receive the authentication response information from distant-end node; Need to prove that described authentication response information comprises and is proved to be successful response message and authentication failed response message;
Data link binding module 13, receive from distant-end node be proved to be successful response message the time, according to the protection type of its configuration described data link is bound flow engineering link; For example according to the 1+1 protection type of carrying in the protection relation checking message, be flow engineering link with the link bundling at described IfA3 and IfB3 place.
Link release module 14 is used to the flow engineering link of described binding to distribute corresponding flow engineering link identifier, and issues described flow engineering link.
Fig. 3 is the composition schematic diagram of the distant-end node 2 that provides of the embodiment of the invention;
Described distant-end node 2 comprises:
Checking message sink module 21 is used for receiving from this end node transmission protection relation checking message; Described protection relation checking message comprises the protection type of local terminal node configuration, and the relation of the protection between the link; For example, in the 1 configuration 1+1 link protection of this end node, wherein the data link at IfA3 place is protected the data link at IfA1 place, the link at IfA3 place is the protection link, described distant-end node 2 disposes its protection attribute and relation equally, for example distant-end node 2 is configured to the 1+1 link protection, wherein the data link at IfB3 place is protected the data link at IfB1 place, and the link at IfB3 place is the protection link;
Protect relational checking module 22, be used for the protection attribute that described protection relation checking message is carried is carried out verification with the local protection attribute that disposes;
Data link binding module 23, when the check results of described protection relational checking module 22 is unanimity, the time, according to the protection type of its configuration described data link is bound flow engineering link; For example according to the 1+1 protection type of carrying in the protection relation checking message, be flow engineering link with the link bundling at described IfA3 and IfB3 place.
Response message sending module 25 is used for the check results of described protection relational checking module is returned to described end node by authentication response information.
Fig. 4 is the composition schematic diagram of the response message sending module in the distant-end node that provides of the embodiment of the invention;
Described response message sending module 25 comprises:
Success response message sending unit 250 if described protection relational checking module is consistent with the protection attribute verification of disposing at distant-end node to the protection attribute of protecting relation checking message to carry, then sends to described end node and is proved to be successful response message;
Failure response message sending unit 251, if the protection attribute that described protection relational checking module is carried protection relation checking message is with inconsistent in the protection attribute verification of distant-end node configuration, the authentication failed response message that sends to this end node then.
Particularly, if the verification passes, then described success response message sending unit 250 sends to described end node 1 and is proved to be successful response message, described end node 1 receives the response message that is proved to be successful from distant-end node 2, according to the protection type described data link is bound flow engineering link, and for it distributes corresponding TE Link ID, and issue described flow engineering link;
If checking is not passed through, then described failure response message transmission module 251 can send the authentication failed response message to this end node 1, comprises the reason of authentication failed in the described authentication failed response message, and reports protection to concern the warning of configuration error to webmaster.
In sum, the system that data link is issued as flow engineering link and this end node and distant-end node that the embodiment of the invention provides, for data link at single station configuration protection attribute, by the protection relation of verification msg link, can it be bound flow engineering link according to the protection type to the data link that the configuration of protection relation is correct;
And for TE Link or data link; also can verify its protection relation; concern mistake if verify out protection; then concern the configuration error warning to the webmaster advertisement protection; point out detailed error reason; make the keeper can clear and definite fault location, in time find mistake, avoid influencing follow-up business and set up or recover.
Need to prove, the system that data link is issued as flow engineering link and this end node and distant-end node that present embodiment provides, not only can be applied to optical-fiber network SDH and SONET, can also be applied to bag and transmit network (PTN, Packet Transport Network), multi protocol label switched transport network (T-MPLS for example, Transport Multi-Protocol Label Switching), communication networks such as provider backbone bridging traffic transport engineering (PBB-TE, Provider Backbone Bridge-Traffic Engineering) network or MPLS network.
Fig. 5 is the schematic flow sheet of the method for calibration embodiment of the data link protection relation that provides of the embodiment of the invention;
The method of calibration of the data link protection relation that the embodiment of the invention provides belongs to the process of link discovery; can realize by the expansion LMP Link Manager Protocol; also can realize by other discovery mechanism; because mechanism of the invention process is not had essential distinction; so present embodiment is described with expansion LMP agreement.
At step S100, LMP starts " connectivity of link verification " process, if verification is passed through, then carries out the core process of the embodiment of the invention;
At step S101, this end node sends protection relation checking message Protection Verify by control channel, comprises the protection type of local terminal configuration in this message, and protection relation (being that certain data link is protected certain bar data link);
At step S102, after distant-end node receives Protection Verify message, the protection attribute of the protection attribute in this message (protection type and protection relation) with local configuration compared;
At step S103, if the verification unanimity then sends good authentication response message Protection VerifyACK to this end node;
At step S104, inconsistent if check is found, then send failed validation response message Protection VerifyNACK and indicate error reason, and report protection to concern that the detailed warning message of configuration error is to webmaster to this end node;
At step S105, if this end node receives the Protection VerifyACK that distant-end node sends, then the checking of expression protection relation is passed through.
Need to prove, described protection relation checking message Protection Verify, good authentication response message Protection VerifyACK and failed validation response message Protection VerifyNACK message are represented the protection of the pairing data link of this TE Link is concerned situation about verifying by the property value LOCAL_LINK_ID in its message format, for example the LOCAL_LINK_ID value is a non-NULL, then represents the protection relation of the pairing data link of this TE Link is verified; The LOCAL_LINK_ID value is empty, then represents the protection relation of the data link that also is not assigned to certain concrete TE Link is verified.
Fig. 6 is the schematic flow sheet of first embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention;
The embodiment of the invention provides is issued as data link the process that the flow engineering link method belongs to link discovery, can realize by the expansion LMP Link Manager Protocol, also can realize (G.7714.x) by other discovery mechanism as the ITU-T definition, both do not have essential distinction to mechanism of the invention process, so present embodiment is described with expansion LMP agreement.
The LMP agreement is correlated with this programme two main processes: (1) connectivity of link verification, and promptly whether the checking data link is communicated with on the transmission plane; (2) TE Link attribute consistency desired result, i.e. the association attributes of the TE Link of verification binding is as TE Link ID, link bandwidth, link cost etc.
The embodiment of the invention can be used as a kind of optional process of LMP, moves between two processes in the above, and can cycling service in the process of the network operation.Its method flow is as follows:
At step S200, LMP starts " connectivity of link verification " process, if verification is passed through, then carries out the core process of the embodiment of the invention;
At step S201, this end node sends protection relation checking message Protection Verify by control channel, comprises the protection type of local terminal configuration in this message, and protection relation (being that certain data link is protected certain bar data link);
At step S202, after distant-end node receives Protection Verify message, the protection attribute of the protection attribute in this message (protection type and protection relation) with local configuration compared;
At step S203, if the verification unanimity then sends good authentication response message Protection VerifyACK to this end node; And, the data link in its configuration information is bound flow engineering link, and, it issues described flow engineering link behind corresponding TE Link ID for distributing according to the protection type;
At step S204, inconsistent if check is found, then send failed validation response message Protection VerifyNACK and indicate error reason, and report protection to concern that the detailed warning message of configuration error is to webmaster to this end node;
At step S205, if this end node receives the Protection VerifyACK that distant-end node sends, then the checking of expression protection relation is passed through;
At step S206, this end node will be bound flow engineering link with described data link according to the protection type.As two data link with 1+1 protection relation are bound into a TE Link, and distribute corresponding TE Link ID, and issue described flow engineering link;
At step S207, LMP moves " TE Link attribute consistency desired result " process, verification TE attribute.
Fig. 7 is the schematic flow sheet of second embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention;
Be illustrated below in conjunction with Fig. 1, further describe the flow process of this enforcement.
Suppose that wherein IfA3 protects IfA1 in the 1 configuration 1+1 link protection of this end node, IfA3 is the protection link, at distant-end node 2 configuration 1+1 link protection, wherein IfB3 protection IfB1.
At step S300, LMP starts " connectivity of link verification " process, and verification passes through, this end node 1 form IfA1, IfA2 and IfA3 respectively with IfB1, the IfB2 of distant-end node 2 and IfB3 for being communicated with;
At step S301, this end node 1 sends protection relation checking message Protection Verify by control channel, and wherein LOCAL_LINK_ID is empty, and expression also is not assigned to the TE Link of appointment to the data link of protection relation to be verified.Link Flags in the PROTECTION_PROPERTY object is designated as " Dedicated 1+1 ", the interface value of Protected_Interface_Id indication IfA1, and Protecting_Interface_Id is designated as the interface value of IfA3.
At step S302, after distant-end node 2 receives Protection Verify message, the protection attribute in this message (protection type and protection relation) and the protection attribute of local configuration are carried out verification;
At step S303, find the verification unanimity, then distant-end node 2 sends Protection VerifyACK message to this end node 1; And distant-end node 2 is bound a TE Link to the data link of IfB1 and IfB3 correspondence, and to distribute corresponding TE Link ID, its bandwidth be the bandwidth of a data link wherein;
At step S304, this end node 1 receives the Protection VerifyACK that distant-end node 2 sends, and then the checking of expression protection relation is passed through;
At step S305, this end node 1 is bound a TE Link to the data link of IfA1 and IfA3 correspondence, and to distribute corresponding TE Link ID, its bandwidth be the bandwidth of a data link wherein;
At step S306, LMP moves " TE Link attribute consistency desired result " process, the corresponding TE attribute of verification.
Fig. 8 is the schematic flow sheet of the 3rd embodiment of the flow engineering link method that data link is issued as that provides of the embodiment of the invention.
As shown in Figure 9; suppose in local node 1 configuration link protection in 1: 2; the link at the link protection IfA1 at IfA3 place and IfA2 place wherein; also dispose link protection in 1: 2 at distant-end node 2; the link at the link protection IfB1 at IfB4 place and IfB2 place wherein, then the flow process of the embodiment of the invention is as follows:
At step S400, LMP starts " connectivity of link verification " process, and verification passes through, and the IfA1 of this end node 1, IfA2, IfA3 and IfA4 are communicated with IfB1, IfB2, IfB3 and the IfB4 of distant-end node 2 respectively;
At step S401; this end node 1 sends protection relation checking message Protection Verify by control channel; carry the protection attribute of data link in the described protection relation checking message; its protection type is link protection in 1: 2; it is the link protection IfA1 at IfA3 place and the link at IfA2 place that protection is closed; wherein the LOCAL_LINK_ID of Protection Verify message is empty, and expression also is not assigned to the TE Link of appointment to the data link of protection relation to be verified.Link Flags in the PROTECTION_PROPERTY object of Protection Verify message is designated as " Dedicated 1+1 ", the interface value of Protected_Interface_Id indication IfA1, Protecting_Interface_Id is designated as the interface value of IfA3.
At step S402, after distant-end node 2 receives Protection Verify message, the protection attribute in this message (protection type and protection relation) and the protection attribute of local configuration are carried out verification; In the present embodiment, the protection type of carrying in the described protection relation checking message is 1: 2 link, and then whether the protection type in the protection attribute of distant-end node 2 its configurations of verification is link protection in 1: 2; The protection relation of carrying in the described protection relation checking message is: the link protection IfA1 at IfA3 place and the link at IfA2 place, because IfA1, IfA2, IfA3 and the IfA4 of this end node 1 are communicated with IfB1, IfB2, IfB3 and the IfB4 of distant-end node 2 respectively, then whether the relation of the protection in the protection attribute of distant-end node 2 its configurations of verification is the link protection IfB1 at IfB3 place and the link at IfB2 place;
At step S403, in checking procedure, distant-end node 2 finds that the protection type of its configuration is link protection in 1: 2, it is the link protection IfB1 at IfB4 place and the link at IfB2 place that but the protection of its configuration is closed, because the IfA1 of this end node 1, IfA2, IfA3 and IfA4 respectively with the IfB1 of distant-end node 2, IfB2, IfB3 and IfB4 are communicated with, then proper configuration should be the link protection IfB1 at IfB3 place and the link at IfB2 place on the distant-end node 2, therefore distant-end node 2 finds that the two ends protection concerns configuration error, then sends Protection VerifyNACK to local node 1;
At step S404, distant-end node 2 also reports protection concern the detailed warning message of configuration error to webmaster, makes the keeper can clear and definite fault location.
Need to prove, the method that data link is issued as flow engineering link that above embodiment provides, not only can be applied to optical-fiber network SDH and SONET, can also be applied to bag and transmit network (PTN, PacketTransport Network), multi protocol label switched transport network (T-MPLS for example, TransportMulti-Protocol Label Switching), provider backbone bridging traffic transport PROJECT NETWORKS (PBB-TE, Provider Backbone Bridge-Traffic Engineering), communication networks such as MPLS network.
In sum, implement checking data link protection relation that the embodiment of the invention provides and, have following beneficial effect its method, Apparatus and system that is issued as flow engineering link:
For data link,, can it be bound flow engineering link according to the protection type to the data link that the configuration of protection relation is correct by the protection relation of this method verification msg link at single station configuration protection attribute;
Can verify the protection relation of TE Link or data link; concern mistake if verify out protection; then concern the configuration error warning to the webmaster advertisement protection; point out detailed error reason; make the keeper can clear and definite fault location; in time find mistake, avoid influencing follow-up business foundation or recovering.
Part steps can realize by software in the technical scheme that above embodiment provides, and software is stored on the storage medium that can read, as the floppy disk of computer, and hard disk or CD etc.
Above disclosed only is the embodiment of the invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1. the method for the verification of a data link protection relation is characterized in that, comprising:
Distant-end node in the data link receives the protection relation checking message from this end node;
The protection attribute that described distant-end node carries described protection relation checking message carries out verification with the local protection attribute that disposes, and the protection attribute of described protection relation checking message comprises the protection type and the relation of the protection between the data link of local terminal node configuration;
If the verification unanimity then sends to described end node and is proved to be successful response message, and according to the protection type of its configuration described data link bound flow engineering link.
2. the method for the verification of data link protection relation as claimed in claim 1; it is characterized in that; if the protection attribute that described distant-end node carries in described protection relation checking message is inconsistent with the protection attribute verification of local configuration; the authentication failed response message that sends to this end node then; and report protection to concern the warning of configuration error to webmaster, comprise the reason of authentication failed in the described authentication failed response message.
3. one kind is issued as the method for flow engineering link with data link, it is characterized in that, comprising:
Distant-end node in the data link receives from this end node and sends protection relation checking message;
The protection attribute that distant-end node carries described protection relation checking message carries out verification with the local protection attribute that disposes, and check results returned to described end node by authentication response information, the protection attribute of described protection relation checking message comprises the protection type and the relation of the protection between the data link of local terminal node configuration;
If authentication response information is for being proved to be successful response message, this end node and distant-end node are bound flow engineering link according to the protection type with described data link, and issue this flow engineering link.
4. the method that data link is issued as flow engineering link as claimed in claim 3, it is characterized in that, after the protection attribute that described distant-end node carries described protection relation checking message carries out verification with the local protection attribute that disposes, if verification unanimity, then send and be proved to be successful response message, and described data link is bound flow engineering link according to the protection type of its configuration to described end node; If described verification is inconsistent, then the authentication failed response message that sends to this end node.
5. the node in the data link is characterized in that, comprising:
The checking message transmission module, be used for sending protection relation checking message to the distant-end node of its place data link, described protection relation checking message is carried the protection attribute, and described protection attribute comprises the protection type of local terminal node configuration, and the relation of the protection between the link;
The response message receiver module is used to receive the authentication response information from described distant-end node;
The data link binding module, described response message receiver module receive described from distant-end node be proved to be successful response message after, according to the configuration the described data link of protection type bind flow engineering link;
The link release module is used to issue described flow engineering link.
6. the node in the data link described in claim 5 is characterized in that, described node also comprises:
Configuration module is used for configuration data link protection type and protection relation thereof.
7. the node in the data link is characterized in that, comprising:
Checking message sink module is used to receive the protection relation checking message from other nodes transmissions of its place data link;
Protection relational checking module, whether be used for the protection attribute that the described protection relation checking of verification message carries consistent with the local protection attribute that disposes; The protection attribute of described protection relation checking message comprises the protection type and the relation of the protection between the data link of local terminal node configuration;
The data link binding module is used for according to the protection type of this node configuration described data link being bound flow engineering link when the check results of described protection relational checking module is unanimity;
The link release module is used to issue described flow engineering link;
The response message sending module is used for the check results of described protection relational checking module is returned to the node that sends described protection relation checking message by authentication response information.
8. the node in the data link as claimed in claim 7 is characterized in that, described response message sending module comprises:
The success response message sending unit, if described protection relational checking module is consistent with the protection attribute verification of disposing at this node to the protection attribute that protection relation checking message is carried, then sends and be proved to be successful response message to the described node that sends protection relation checking message;
The failure response message sending unit; inconsistent with the protection attribute verification of disposing as if described protection relational checking module at distant-end node to the protection attribute of protecting relation checking message to carry, then protect the node of relation checking message to send the authentication failed response message to described sending.
9. as the node in claim 7 or the 8 described data link, it is characterized in that described node also comprises:
Configuration module is used for configuration data link protection type and protection relation thereof.
10. one kind is issued as the system of flow engineering link with data link, it is characterized in that, comprising:
This end node is used for sending protection relation checking message to the distant-end node of its place data link; Comprise:
The checking message transmission module, be used for sending protection relation checking message to the distant-end node of its place data link, described protection relation checking message is carried the protection attribute, and described protection attribute comprises the protection type of local terminal node configuration, and the relation of the protection between the link;
The response message receiver module is used to receive the authentication response information from described distant-end node;
The data link binding module, described response message receiver module receive described from distant-end node be proved to be successful response message after, according to the configuration the described data link of protection type bind flow engineering link;
The link release module is used to issue described flow engineering link;
Distant-end node, be used for the described protection attribute that carries from the protection relation checking message of this end node is carried out verification with the local protection attribute that disposes, and check results returned to described end node by authentication response information, described protection attribute comprises the protection type and the relation of the protection between the data link of local terminal node configuration;
Checking message sink module is used to receive the protection relation checking message from other nodes transmissions of its place data link;
Protection relational checking module, whether be used for the protection attribute that the described protection relation checking of verification message carries consistent with the local protection attribute that disposes; The protection attribute of described protection relation checking message comprises the protection type and the relation of the protection between the data link of local terminal node configuration;
The data link binding module is used for according to the protection type of this node configuration described data link being bound flow engineering link when the check results of described protection relational checking module is unanimity;
The link release module is used to issue described flow engineering link;
The response message sending module is used for the check results of described protection relational checking module is returned to this end node that sends described protection relation checking message by authentication response information;
If authentication response information is for being proved to be successful response message, described end node and distant-end node are bound flow engineering link according to the protection type with described data link, and issue this flow engineering link.
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| CN1661984A (en) * | 2004-02-25 | 2005-08-31 | 华为技术有限公司 | Method for treating multiplexing segments of loop chain in automatic switching optical network |
| CN1859371A (en) * | 2005-10-28 | 2006-11-08 | 华为技术有限公司 | Method for checking flow engineering link time slot state consistency |
| US7230913B1 (en) * | 2002-06-11 | 2007-06-12 | Cisco Technology, Inc. | MPLS fast reroute without full mesh traffic engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7230913B1 (en) * | 2002-06-11 | 2007-06-12 | Cisco Technology, Inc. | MPLS fast reroute without full mesh traffic engineering |
| CN1661984A (en) * | 2004-02-25 | 2005-08-31 | 华为技术有限公司 | Method for treating multiplexing segments of loop chain in automatic switching optical network |
| CN1859371A (en) * | 2005-10-28 | 2006-11-08 | 华为技术有限公司 | Method for checking flow engineering link time slot state consistency |
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