CN101621453A - Method and system for ensuring consistency of differentiated services-aware traffic engineering network configuration parameters - Google Patents
Method and system for ensuring consistency of differentiated services-aware traffic engineering network configuration parameters Download PDFInfo
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- CN101621453A CN101621453A CN200810068238A CN200810068238A CN101621453A CN 101621453 A CN101621453 A CN 101621453A CN 200810068238 A CN200810068238 A CN 200810068238A CN 200810068238 A CN200810068238 A CN 200810068238A CN 101621453 A CN101621453 A CN 101621453A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0866—Checking the configuration
- H04L41/0873—Checking configuration conflicts between network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2408—Traffic characterised by specific attributes, e.g. priority or QoS for supporting different services, e.g. a differentiated services [DiffServ] type of service
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Abstract
The embodiment of the invention discloses a method and a system for ensuring the consistency of DS-TE network configuration parameters. The method for ensuring the consistency of the DS-TE network configuration parameters comprises the following steps that: a first node sends DS-TE configuration parameters of the first node to a second node; the second node judges whether the DS-TE configuration parameters of the first node are consistent with the DS-TE configuration parameters of the second node; and if the DS-TE configuration parameters of the first node are inconsistent with those of the second node, the DS-TE configuration parameters of the first node and the DS-TE configuration parameters of the second node are consistently configured. Correspondingly, the embodiment of the invention provides the system for ensuring the consistency of the DS-TE network configuration parameters. The technical scheme provided by the invention contributes to sequential resource distribution.
Description
Technical field
The present invention relates to communication technique field, be specifically related to the method and system of ensuring consistency of differentiated services-aware traffic engineering network configuration parameters.
Background technology
(MultiProtocol Label Switching, MPLS) technology has become an important technology of communication network, and is used widely in the IP network of internet and a lot of telecom operators in multiprotocol label switching.Based on the application of MPLS again with differentiated services (Differentiated Services, DiffServ) and traffic engineering (Traffic Engineering, TE) important and general.DiffServ can realize extendible network design by multistage service, and DiffServ is divided into a small amount of grade with flow and by each grade allocation of network resources.MPLS-TE is used to realize performance objective, is placed on the specific link as network resource optimization and with flow.
The MPLS-TE tranmission techniques adopts the MPLS control technology.MPLS-TE has introduced label switched path, and (Label Switch Path, LSP) priority notion, this priority are used for some LSP is labeled as more important than other LSP, and allow them to seize the resource of low priority LSP.Do like this and guaranteed: lacking under the situation of important LSP, by the LSP reserved resource of low priority; Important LSP is the shortest along optimum all the time, and promptly the shortest path path is set up, and is not subjected to the show mercy influence of condition of pre existing; When LSP needs to re-route, important LSP has and seeks the priority of replacing the path earlier.MPLS-TE has defined 8 priority levels, and 0 is limit priority, and 7 is lowest priority.LSP carries two priorities associated: set up priority (setup priority) and keep priority (hold priority).Set up priority and when setting up LSP, control access resource; Keep priority control to setting up the resource access of LSP.When setting up LSP,, whether important and seize its resource than any LSP that has set up to determine new LSP if inadequate resource needs the maintenance priority of setting up priority and the LSP that uses resource of new LSP is contrasted.
But in the MPLS-TE network application, exist some application problems to solve by independent use DiffServ or TE, as: can not limit the ratio of specific rank flow on the link, relative flow proportional on can not maintenance link, not guarantee bandwidth service.The existence of these application problems has formed MPLS differential service flux engineering (Differentiated Services-aware Traffic Engineering, DS-TE) basis of solution appearance.Introduced Class Type (Class Type among the MPLS DS-TE, CT) notion, CT is for crossing over one group of flow hop of link, manage by one group of specific bandwidth constraints, be used for allocated bandwidth, control based on the route and the permission of restrictive condition, the flow hop of appointment belongs to same CT on all links.Require MPLS DS-TE to support 8 CT at most at present, from CT0 to CT7.Adopt traffic engineering to guarantee that the LSP of bandwidth is called DS-TE LSP by specific CT.(Internet Engineering Task Force, IETF) in the pattern, a DS-TE LSP can only transmit the flow of a CT in current internet engineer's task groups.Transmit the LSP of same CT flow, can use identical or different preemption mechanism.DS-TE has added available bandwidth for all 8 class CT, as the restrictive condition that may be used on every paths.Therefore (so that when calculating path, the bandwidth that assigned priority CT is specific takes in as restrictive condition for Constrained Shortest Path First, CSPF) algorithm to need to strengthen Constraint Shortest Path First.As want to guarantee successfully to calculate, need to understand the available bandwidth of every all priority levels of link based on CT.This means Interior Gateway Protocol (InteriorGateway Protocol, IGP) must every link of inundation on based on the available bandwidth of each priority of CT.In view of 8 CT and 8 priority levels altogether, at IETF Request for Comment (Request ForComments, the TE rank of definition RFC) (Traffic Engineering Class TE-Class) is defined by the combination of CT and priority: TE-Class[i]=＜CT, Priority 〉.DS-TE supports 8 TE ranks at most, and TE-Class0 is to TE-Class7, and these 8 ranks are selected configuration from 64 possible CT and priority combination, and pass through the bandwidth information of IGP agreement inundation TE-Class correspondence.
Outside the MPLS tranmission techniques, have two kinds of tranmission techniques: transmit the MPLS technology (TransportMultiProtocol Label Switching, T-MPLS) and the operator backbone tranmission techniques (ProviderBackbone Transport, PBT).T-MPLS is based on the connection-oriented bag transmission technology of MPLS, is the subclass of MPLS, has removed and has not had the IP-based forwarding of connection, increases OAM(Operation Administration Maintenance) end to end, equally also has the DS-TE characteristic.PBT is based on the connection-oriented bag transmission technology of Ethernet, equally also can have the DS-TE characteristic.
(Generalized Multiprotocol Label Switching's exchange of general multiple protocols label GMPLS) is developed by the MPLS control technology, is a kind of general multiple protocols tag switching that can be used for photosphere that IETF proposes.The GMPLS control technology is based upon on the basis of process development and standardized MPLS control technology, has inherited the characteristic and the agreement of a lot of MPLS control technologys.Because GMPLS is universal control plane, it also becomes one of control technology of T-MPLS and PBT.Therefore for the DS-TE network, no matter be MPLS control or GMPLS control, can have the control ability of DS-TE characteristic.
In research process of the present invention, the inventor finds, in a DS-TE network, CT and priority (PRIORITY) that use to determine when setting up a DS-TE LSP to Section Point from first node therefore need to comprise CT parameter and the PRIORITY parameter that this is determined in the DS-TE configuration of Section Point in the network.The DS-TE network is mainly guaranteed the unanimity of node DS-TE configuration parameter by network configuration person at present, wasted big manpower, can not guarantee simultaneously the accuracy of node DS-TE configuration parameter unanimity, in the DS-TE configuration parameter that causes Section Point owing to node DS-TE configuration parameter is inaccurate, do not have this CT parameter and PRIORITY parameter of determining, situation as shown in Figure 1 can occur.Among Fig. 1, first node has disposed 3 TE-Class parameters, the wherein TE-Class[0 that first node disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0; TE-CLASS[1] be＜CT1 1 〉, expression CT parameter is 1, the PRIORITY parameter is 1; TE-CLASS[2] be＜CT2 2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.The TE-Class[0 that Section Point disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0; TE-CLASS[1] be＜CT1 2 〉, expression CT parameter is 1, the PRIORITY parameter is 2; TE-CLASS[2] be＜CT2 2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.When setting up one＜CT1 from node A, 1〉DS-TE LSP is to Node B, in the CSPF of node A path computing, the path is A-B, but in the signaling implementation, as RSVP-TE (Resource Reservation Protocol Traffic Engineering, when resource reservation protocol flow engineering) protocol massages of signaling carries CLASSTYPE (grade type) object to Node B, do not have＜CT1 1 in the configuration of Node B〉relevant configured parameter, cause the RSVP-TE signaling to carry out failure.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and system, node that can guarantee DS-TE configuration consistency in the network.
For solving the problems of the technologies described above, embodiment provided by the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of method of the DS-TE of assurance network configuration parameters unanimity, comprising:
Send first node DS-TE configuration parameter to Section Point from first node;
Described Section Point judges whether described first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter;
If inconsistent, be configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter.
The embodiment of the invention provides a kind of system of the DS-TE of assurance network configuration parameters unanimity, comprising:
First node is used to send first node DS-TE configuration parameter to Section Point;
Section Point is used to judge that described first node DS-TE configuration parameter and Section Point DS-TE configuration parameter be whether consistent and reports judged result;
Webmaster is used for being configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter when learning that from described Section Point described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter are inconsistent.
The embodiment of the invention provides a kind of node, comprising:
The information expanding element is used for increasing described node DS-TE configuration parameter by expansion on DS-TE internet message mutual between the Section Point outside described node and this node;
Transmitting element is used for carrying the described DS-TE internet message of described node DS-TE configuration parameter to described Section Point from described node transmission.
The embodiment of the invention provides a kind of node, comprising:
Resolution unit is used to resolve the first node DS-TE configuration parameter that the first node outside the described node that the DS-TE internet message carries sends over;
The parameter judging unit is used to judge whether the described first node DS-TE configuration parameter that described resolution unit parses is consistent with the DS-TE configuration parameter of this node.
The technical scheme of the assurance DS-TE network configuration parameters unanimity that provides by the embodiment of the invention, judge by Section Point whether first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter, under inconsistent situation, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter, can realize the consistency configuration of DS-TE configuration parameter between node more conveniently, overcome simultaneously by the prior manual configuration of network configuration person and caused the defective that can not effectively guarantee DS-TE configuration parameter unanimity, need to guarantee DS-TE configuration parameter unanimity between the node of configuration service more accurately, avoid in that to initiate the professional DS-TE configuration parameter of need setting up when setting up request between professional node inconsistent and signaling that cause is carried out failure, thus sequential resource distribution.
Description of drawings
Fig. 1 is two different node schematic diagrames of DS-TE configuration parameter in the prior art;
The method flow diagram of the assurance DS-TE network configuration parameters unanimity that Fig. 2 provides for one embodiment of the invention;
Fig. 3 is the method flow diagram of the assurance DS-TE network configuration unanimity of one embodiment of the invention;
Fig. 4 is the method flow diagram of DS-TE configuration consistency in the assurance MPLS DS-TE network of one embodiment of the invention;
Fig. 5 is " TE-Class " sub-TLV of one embodiment of the invention definition;
Fig. 6 is " TE-Class " sub-TLV of another embodiment of the present invention definition;
Fig. 7 is the conforming method of inspection flow chart of DS-TE network configuration parameters in the GMPLS DS-TE network of another embodiment of the present invention;
A kind of node that Fig. 8 provides for one embodiment of the invention;
A kind of node that Fig. 9 provides for another embodiment of the present invention;
The system of the assurance DS-TE network configuration parameters unanimity that Figure 10 provides for one embodiment of the invention.
Embodiment
The method flow diagram of the assurance DS-TE network configuration parameters unanimity that Fig. 2 provides for one embodiment of the invention comprises:
S201, send first node DS-TE configuration parameter to Section Point from first node.
Entrained first node DS-TE configuration parameter comprises one or more traffic engineering grades TE-Class parameter, and each TE-Class parameter comprises a grade Type C T parameter and a priority P RIORITY parameter; This first node DS-TE configuration parameter also comprises TE-NUM (Traffic Engineering Class Number, the traffic engineering number of levels) parameter of representing the TE-Class number of parameters information that first node disposed.
S202, Section Point judge whether the first node DS-TE configuration parameter that receives is consistent with Section Point DS-TE configuration parameter.
This Section Point DS-TE configuration parameter comprises one or more traffic engineering grades TE-Class parameter, and each TE-Class parameter comprises a grade Type C T parameter and a priority P RIORITY parameter; This Section Point DS-TE configuration parameter also comprises the TE-NUM parameter of representing the TE-Class number of parameters information that Section Point disposed.
If S203 first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, be configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter.
When first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, can pass through the inconsistent alarm of configurations shown, by extraneous means of intervention the DS-TE configuration parameter of two nodes is configured to unanimity, such as the DS-TE configuration parameter of two nodes being configured to unanimity by the network manager.
Inconsistent the showing as of DS-TE configuration parameter of the DS-TE configuration parameter of Section Point and first node, TE-Num parameter in the Section Point DS-TE configuration parameter is different with TE-Num parameter in the first node DS-TE configuration parameter, though perhaps the TE-Num parameter in the Section Point DS-TE configuration parameter is identical with TE-Num parameter in the first node DS-TE configuration parameter, one or more are arranged in TE-Class parameter in Section Point DS-TE configuration parameter is unexistent in the first node DS-TE configuration parameter.
For instance, under first kind of situation, the TE-Num parameter that first node disposed is 3, be that first node has disposed 3 TE-Class parameters, the wherein TE-Class[0 that first node disposed] for＜CT0,0 〉, expression CT parameter is 0, and the PRIORITY parameter is 0; TE-CLASS[1] be＜CT1 1 〉, expression CT parameter is 1, the PRIORITY parameter is 1; TE-CLASS[2] be＜CT2 2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.If the TE-NUM parameter that Section Point disposed is 1, the TE-Class[0 that is disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0.Because the TE-NUM parameter that TE-NUM parameter and Section Point that first node disposed are disposed is different, so first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent.
Under second kind of situation, suppose that first node DS-TE configuration parameter is identical with first node DS-TE configuration parameter in first kind of situation, the TE-Num parameter that Section Point disposed is 3, be that Section Point has disposed 3 TE-Class parameters, the TE-Class[0 that Section Point disposed wherein] for＜CT0,0 〉, expression CT parameter is 0, and the PRIORITY parameter is 0; TE-CLASS[1] be＜CT1 2 〉, expression CT parameter is 1, the PRIORITY parameter is 2; TE-CLASS[2] be＜CT2 2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.A TE-CLASS[1 is arranged in the TE-Class parameter in the Section Point DS-TE configuration parameter] be unexistent in the first node DS-TE configuration parameter, so first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent.
Understand easily, being configured to described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter consistent can be the DS-TE configuration parameter of revising first node by the DS-TE configuration parameter of Section Point.Such as passing through the inconsistent alarm of configurations shown, the DS-TE configuration parameter of pressing Section Point by extraneous means of intervention is revised the DS-TE configuration parameter of first node, and wherein a kind of mode is to be revised the DS-TE configuration parameter of first node by the DS-TE configuration parameter of Section Point by the network manager.Being configured to described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter consistent also can be the DS-TE configuration parameter of revising Section Point by the DS-TE configuration parameter of first node.
The method of the assurance DS-TE network configuration parameters unanimity of one embodiment of the invention can also comprise:
If S204 first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter, configuration service between first node and Section Point.
Fig. 3 is the method flow diagram of the assurance DS-TE network configuration unanimity of another embodiment of the present invention, comprising:
S301, on the DS-TE internet message that spreads between first node and the Section Point, increase first node DS-TE configuration parameter by expansion.
S302, send from first node and to carry the described DS-TE internet message of first node DS-TE configuration parameter to Section Point.
S303, Section Point are resolved the first node DS-TE configuration parameter that receives.
Whether the first node DS-TE configuration parameter that S304, judgement parse is consistent with Section Point DS-TE configuration parameter.
If S305 first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter.
When first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, can pass through the inconsistent alarm of configurations shown, by extraneous means of intervention the DS-TE configuration parameter of two nodes is configured to unanimity, such as the DS-TE configuration parameter of two nodes being configured to unanimity by the network manager.
The method of the assurance DS-TE network configuration parameters unanimity that provides by the embodiment of the invention, judge by Section Point whether first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter, under inconsistent situation, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter, can realize the consistency configuration of DS-TE configuration parameter between node more conveniently, overcome simultaneously by the prior manual configuration of network configuration person and caused the defective that can not effectively guarantee DS-TE configuration parameter unanimity, need to guarantee DS-TE configuration parameter unanimity between the node of configuration service more accurately, avoid in that to initiate the professional DS-TE configuration parameter of need setting up when setting up request between professional node inconsistent and signaling that cause is carried out failure, thus sequential resource distribution.
Fig. 4 is the method flow diagram of DS-TE configuration consistency in the assurance MPLS DS-TE network of one embodiment of the invention, guarantee that wherein the DS-TE configuration consistency can be finished by the IGP agreement in the MPLS DS-TE network, the IGP agreement includes but not limited to OSPF (Open Shortest Path First, Open Shortest Path First), IS-IS (Intermedia System-Intermedia System, intermediate system-intermediate system) agreement, following is example with the OSPF-TE Routing Protocol in the IGP agreement.OSPF-TE LSA message is the DS-TE internet message that spreads between first node and the Section Point, the corresponding first node DS-TE configuration parameter that on the DS-TE internet message, is increased of " TE-Class " sub-TLV (Traffic Engineering Class sub-TLV, traffic engineering grade subtype length value).
S401, between first node and Section Point, consult to set up neighborhood by Hello (inquiry) message, begin to spread OSPF-TE LSA (OSPF-TE Link StateAdvertisement, OSPF-TE LSA) information afterwards between these two nodes.
S402, on the OSPF-TE LSA message that spreads between first node and the Section Point, increase " TE-Class " sub-TLV, make OSPF-TE LSA message carry " TE-Class " sub-TLV by expansion.As shown in Figure 5, should define the TE-Class parameter that first node disposed by " TE-Class " sub-TLV, each TE-Class parameter is made up of a CT parameter and a PRIORITY parameter.Should also define the TE-Num parameter that first node disposed by " TE-Class " sub-TLV, the expression TE-Class number of parameters that first node disposed.
The TE-Class parameter that has defined the first node configuration and " TE-Class " sub-TLV that represents the TE-Num parameter of the TE-Class number of parameters information that first node disposed have been shown in Fig. 6 of bottom.Here the TE-Num parameter that first node disposed is 3, and promptly first node has disposed 3 TE-Class parameters, the wherein TE-Class[0 that first node disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0; The TE-CLASS[1 that first node disposed] for＜CT1,1 〉, expression CT parameter is 1, the PRIORITY parameter is 1; The TE-CLASS[2 that first node disposed] for＜CT2,2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.
S403, transmission are carried the OSPF-TE LSA message of " TE-Class " sub-TLV to Section Point.
First node DS-TE configuration parameter among " TE-Class " sub-TLV that the OSPF-TE LSA that S404, Section Point parsing receive carries.
By resolving, obtaining the TE-Num parameter that first node disposes is 3, wherein the TE-Class[0 that first node disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0; The TE-CLASS[1 that first node disposed] for＜CT1,1 〉, expression CT parameter is 1, the PRIORITY parameter is 1; The TE-CLASS[2 that first node disposed] for＜CT2,2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.
Whether the first node DS-TE configuration parameter that S405, judgement parse is consistent with the DS-TE configuration parameter of Section Point.
If S406 first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter.
When first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, can pass through the inconsistent alarm of configurations shown, by extraneous means of intervention the DS-TE configuration parameter of two nodes is configured to unanimity, such as the DS-TE configuration parameter of two nodes being configured to unanimity by the network manager.
In one case, the TE-Num parameter that Section Point disposed is 3, and promptly Section Point has disposed 3 TE-Class parameters, the wherein TE-Class[0 that Section Point disposed] for＜CT0,0 〉, expression CT parameter is 0, the PRIORITY parameter is 0; The TE-CLASS[1 that Section Point disposed] for＜CT1,2 〉, expression CT parameter is 1, the PRIORITY parameter is 2; The TE-CLASS[2 that Section Point disposed] for＜CT2,2 〉, expression CT parameter is 2, the PRIORITY parameter is 2.Judge whether the above-mentioned first node DS-TE configuration parameter that parses is consistent with the DS-TE configuration parameter of Section Point, can draw difference and be the TE-CLASS[1 that comprises in the Section Point DS-TE parameter] for＜CT1,2〉be that first node DS-TE configuration parameter is unexistent, because the TE-CLASS[1 that first node disposed] for＜CT1,1 〉.Here can revise the DS-TE configuration parameter of first node by the DS-TE configuration parameter of Section Point, the TE-CLASS[1 that first node disposed] be revised as＜CT1 1 〉.
If S407 Section Point DS-TE configuration parameter is consistent with the described first node DS-TE configuration parameter that parses, configuration service between first node and Section Point.
The DS-TE configuration parameter of Section Point and consistent the showing as of DS-TE configuration parameter that parses, TE-Num parameter in TE-Num parameter in the Section Point DS-TE configuration parameter and the first node DS-TE that the parses configuration is identical, and the TE-Class parameter in the Section Point DS-TE configuration parameter is identical with TE-Class parameter during first node DS-TE disposes.
Fig. 7 is the conforming method of inspection flow chart of DS-TE network configuration parameters in the DS-TE network of GMPLS control technology of another embodiment of the present invention.The conforming verification of DS-TE network configuration parameters here realizes by the LMP agreement.(Link Management Protocol LMP) can be used for carrying out the automatic discovery of controlling links passage between node and the automatic verification of link attribute to link verification agreement, and for example the link exchange capacity of a link, bandwidth reserved etc. are consulted verification.The DS-TE internet message is LinkSummary (link a gathers) message in the present embodiment, the corresponding first node DS-TE configuration parameter that increases on the DS-TE internet message of DS-TE sub-object (DS-TE subobject).
S701, between first node and Section Point, set up LMP control channel, begin to spread LinkSummary message between these two nodes afterwards by Config (Configuration, configuration) interacting message.
S702, on the LinkSummary message that spreads between first node and the described Section Point by the expansion increase＜TE-Link (flow engineering link) object, should＜TE-Link〉object comprises one or more＜Data-Link〉(data link) object, at＜Data-Link〉comprise DS-TE sub-object in the object.This DS-TE sub-object definition TE-Class parameter that first node disposed, each TE-Class parameter is made up of CT parameter and PRIORITY parameter.This DS-TE sub-object has also defined the TE-Num parameter that first node disposed, the expression TE-Class number of parameters that first node disposed.
S703, transmission are carried the LinkSummary message of DS-TE sub-object to Section Point.
First node DS-TE configuration parameter among the DS-TE sub-object that the LinkSummary message that S704, Section Point parsing receive is carried.
Whether the first node DS-TE configuration parameter that S705, judgement parse is consistent with the DS-TE configuration parameter of Section Point.
If S706 first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter.
When first node DS-TE configuration parameter and Section Point DS-TE configuration parameter are inconsistent, can pass through the inconsistent alarm of configurations shown, by extraneous means of intervention the DS-TE configuration parameter of two nodes is configured to unanimity, such as the DS-TE configuration parameter of two nodes being configured to unanimity by the network manager.
If S707 Section Point DS-TE configuration and the described first node DS-TE configuration consistency that parses, configuration service between first node and Section Point.
The DS-TE configuration parameter of Section Point and consistent the showing as of first node DS-TE configuration parameter that parses, TE-Num parameter in the Section Point DS-TE configuration parameter is identical with TE-Num parameter in the first node DS-TE configuration parameter that parses, and the TE-Class parameter in the Section Point DS-TE configuration parameter is identical with TE-Class parameter in the first node DS-TE configuration parameter.
More than describe the conforming method of inspection of DS-TE network configuration parameters of the embodiment of the invention in detail, correspondingly, the embodiment of the invention also provides a kind of node and guarantees the consistent system of DS-TE network configuration parameters.
Fig. 8 is a kind of node that one embodiment of the invention provides, and comprising:
The information expanding element is used for increasing described node DS-TE configuration parameter by expansion on DS-TE internet message mutual between the Section Point outside described node and this node;
Transmitting element is used for carrying the described DS-TE internet message of described node DS-TE configuration parameter to described Section Point from described node transmission.
Fig. 9 is a kind of node that another embodiment of the present invention provides, and comprising:
Resolution unit is used to resolve the first node DS-TE configuration parameter that the first node outside the described node that the DS-TE internet message carries sends over;
The parameter judging unit is used to judge whether the described first node DS-TE configuration parameter that described resolution unit parses is consistent with the DS-TE configuration parameter of this node.
If this parameter judging unit can also be used for judging that the DS-TE configuration parameter that draws described first node DS-TE configuration parameter and this node is inconsistent, then send the inconsistent notification message of configuration parameter.
The system of the assurance DS-TE network configuration parameters unanimity that Figure 10 provides for one embodiment of the invention comprises:
First node is used to send first node DS-TE configuration parameter to Section Point;
Section Point is used to judge that described first node DS-TE configuration parameter and Section Point DS-TE configuration parameter be whether consistent and reports judged result;
Webmaster is used for being configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter when learning that from described Section Point described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter are inconsistent.
Described DS-TE network can be MPLS DS-TE network or GMPLS DS-TE network.
The DS-TE configuration of Section Point is disposed inconsistent showing as with the DS-TE of first node, TE-Num parameter in the Section Point DS-TE configuration is different with the TE-Num parameter in the first node DS-TE configuration parameter, though perhaps the TE-Num parameter in the Section Point DS-TE configuration parameter is identical with TE-Num parameter in the first node DS-TE configuration parameter, it is unexistent in the first node DS-TE configuration parameter that one or more TE-Class parameters are arranged in the TE-Class parameter in the Section Point DS-TE configuration parameter.
Understand easily, being configured to described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter consistent can be the DS-TE configuration parameter of revising first node by the DS-TE configuration parameter of Section Point.Being configured to described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter consistent also can be the DS-TE configuration parameter of revising Section Point by the DS-TE configuration parameter of first node.
The system of the assurance DS-TE network configuration parameters unanimity that the embodiment of the invention provides, judge by Section Point whether first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter, under inconsistent situation, be configured to consistent with Section Point DS-TE configuration parameter first node DS-TE configuration parameter, can realize the consistency configuration of DS-TE configuration parameter between node more conveniently, overcome simultaneously by the prior manual configuration of network configuration person and caused the defective that can not effectively guarantee DS-TE configuration parameter unanimity, need to guarantee DS-TE configuration parameter unanimity between the node of configuration service more accurately, avoid in that to initiate the professional DS-TE configuration parameter of need setting up when setting up request between professional node inconsistent and signaling that cause is carried out failure, thus sequential resource distribution.
The above is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (11)
1. a method that guarantees DS-TE network configuration parameters unanimity is characterized in that, comprising:
First node sends first node DS-TE configuration parameter to Section Point;
Described Section Point judges whether described first node DS-TE configuration parameter is consistent with Section Point DS-TE configuration parameter;
If inconsistent, be configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter.
2 the method for claim 1 is characterized in that, describedly send first node DS-TE configuration parameter from first node and comprise to Section Point:
On DS-TE internet message mutual between described first node and the described Section Point, increase first node DS-TE configuration parameter by expansion;
Carry the described DS-TE internet message of described first node DS-TE configuration parameter to Section Point from described first node transmission;
Described Section Point is judged described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter consistent comprising whether:
Resolve the described first node DS-TE configuration parameter that described DS-TE internet message that described Section Point receives carries;
Judge whether the described first node DS-TE configuration parameter that parses is consistent with described Section Point DS-TE configuration parameter.
3. method as claimed in claim 2, it is characterized in that, described Section Point DS-TE configuration parameter comprises one or more traffic engineering grades TE-Class parameter, and each TE-Class parameter comprises a grade Type C T parameter and a priority P RIORITY parameter; Described Section Point DS-TE configuration parameter comprises that also the expression node disposes the traffic engineering number of levels TE-NUM parameter of TE-Class number of parameters information.
4. method as claimed in claim 3, it is characterized in that, described first node DS-TE configuration parameter comprises one or more traffic engineering grades TE-Class parameter, and each TE-Class parameter comprises a grade Type C T parameter and a priority P RIORITY parameter; Described first node DS-TE configuration parameter comprises that also the expression node disposes the traffic engineering number of levels TE-NUM parameter of TE-Class number of parameters information.
5. as the described method of arbitrary claim among the claim 1-4, it is characterized in that, described first node DS-TE configuration parameter be configured to consistent comprising with Section Point DS-TE configuration parameter:
Revise the DS-TE configuration parameter of described first node by the DS-TE configuration parameter of described Section Point;
Perhaps:
Revise the DS-TE configuration parameter of described Section Point by the DS-TE configuration parameter of described first node.
6. the method for claim 1 is characterized in that, also comprise, if described first node DS-TE configuration parameter is consistent with described Section Point DS-TE configuration parameter, and configuration service between first node and Section Point.
7. a node is characterized in that, comprising:
The information expanding element is used for increasing described node DS-TE configuration parameter by expansion on DS-TE internet message mutual between the Section Point outside described node and this node;
Transmitting element is used for carrying the described DS-TE internet message of described node DS-TE configuration parameter to described Section Point from described node transmission.
8. a node is characterized in that, comprising:
Resolution unit is used to resolve the first node DS-TE configuration parameter that the first node outside the described node that the DS-TE internet message carries sends over;
The parameter judging unit is used to judge whether the described first node DS-TE configuration parameter that described resolution unit parses is consistent with the DS-TE configuration parameter of this node.
9, node as claimed in claim 8 is characterized in that, described parameter judging unit also is used for:
If judge that the DS-TE configuration parameter that draws described first node DS-TE configuration parameter and this node is inconsistent, then send the inconsistent notification message of configuration parameter.
10. a system that guarantees DS-TE network configuration parameters unanimity is characterized in that, comprising:
First node is used to send first node DS-TE configuration parameter to Section Point;
Section Point is used to judge that described first node DS-TE configuration parameter and Section Point DS-TE configuration parameter be whether consistent and reports judged result;
Webmaster is used for being configured to consistent with described Section Point DS-TE configuration parameter described first node DS-TE configuration parameter when learning that from described Section Point described first node DS-TE configuration parameter and described Section Point DS-TE configuration parameter are inconsistent.
11. system as claimed in claim 10 is characterized in that, described DS-TE network is MPLSDS-TE network or GMPLS DS-TE network.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068238A CN101621453A (en) | 2008-06-30 | 2008-06-30 | Method and system for ensuring consistency of differentiated services-aware traffic engineering network configuration parameters |
| PCT/CN2009/072553 WO2010000202A1 (en) | 2008-06-30 | 2009-06-30 | Method and system for ensuring the consistency of differentiated services-aware traffic engineeing network configuration parameters |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810068238A CN101621453A (en) | 2008-06-30 | 2008-06-30 | Method and system for ensuring consistency of differentiated services-aware traffic engineering network configuration parameters |
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| CN101621453A true CN101621453A (en) | 2010-01-06 |
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| CN200810068238A Pending CN101621453A (en) | 2008-06-30 | 2008-06-30 | Method and system for ensuring consistency of differentiated services-aware traffic engineering network configuration parameters |
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| CN (1) | CN101621453A (en) |
| WO (1) | WO2010000202A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378071A (en) * | 2011-10-18 | 2012-03-14 | 中兴通讯股份有限公司 | Method and device for establishing connection |
| WO2017036229A1 (en) * | 2015-09-06 | 2017-03-09 | 中兴通讯股份有限公司 | Method and device for realizing control channel binding |
| CN102378071B (en) * | 2011-10-18 | 2018-02-09 | 中兴通讯股份有限公司 | Connect method for building up and device |
| WO2019080904A1 (en) * | 2017-10-27 | 2019-05-02 | 中兴通讯股份有限公司 | Method and device for negotiation fragmentation of link management protocol |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291750B (en) * | 2011-09-20 | 2014-04-02 | 华为技术有限公司 | Checking method and device for network configuration parameters |
| DE102020005626A1 (en) | 2020-05-08 | 2021-11-11 | Alexander Fürst | "Post-installed device with a cuff to reduce breath flowing to the eyes when a person is wearing a mouth / nose cover or mask" |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0324596D0 (en) * | 2003-10-21 | 2003-11-26 | Nokia Corp | Sessions in a communication system |
| CN100583887C (en) * | 2006-01-26 | 2010-01-20 | 华为技术有限公司 | Method of implementing resource control on access layer per VC in L2VPN |
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- 2008-06-30 CN CN200810068238A patent/CN101621453A/en active Pending
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2009
- 2009-06-30 WO PCT/CN2009/072553 patent/WO2010000202A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378071A (en) * | 2011-10-18 | 2012-03-14 | 中兴通讯股份有限公司 | Method and device for establishing connection |
| CN102378071B (en) * | 2011-10-18 | 2018-02-09 | 中兴通讯股份有限公司 | Connect method for building up and device |
| WO2017036229A1 (en) * | 2015-09-06 | 2017-03-09 | 中兴通讯股份有限公司 | Method and device for realizing control channel binding |
| WO2019080904A1 (en) * | 2017-10-27 | 2019-05-02 | 中兴通讯股份有限公司 | Method and device for negotiation fragmentation of link management protocol |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010000202A1 (en) | 2010-01-07 |
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