CN101888573B - Method and system for automatically discovering resource state between adjacent nodes - Google Patents
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Abstract
The invention discloses a method and a system for discovering the resource state between adjacent nodes automatically. The method comprises the following steps of: when a data link between the adjacent nodes is checked successfully, allowing the nodes to add resource allocation information of a local data link into a specific field of a sent message, and acquiring the resource allocation information from the message by the nodes receiving the message and comparing the acquired resource allocation information with local data; if the resource allocation information is inconsistent with the local data, indicating the error of the inconsistency of the resource allocation information of the data links at both ends in error codes; and reporting the error of the inconsistency of the resource allocation information of the data links at both ends to a webmaster, and promoting the error to users for processing. By adopting the method and the system of the invention, resources between the adjacent nodes of different transport layers of a transmission plane can be discovered, and the consistency check of the resource allocation information such as link using state, link administration authority and the like can also be performed so as to provide reference for the flexible change of network transmission paths and then greatly improve the quality of network services.
Description
Technical field
The present invention relates to ASON (Automatically Switched Optical Network, ASON) technical field, relate in particular to a kind of method and system of automatic discovery resource state between adjacent nodes.
Background technology
Be accompanied by the day by day increase of the traffic and the continuous appearance of new technology new business, transmission network is all being carried a large amount of information constantly, and the generation of a communication disruption will cause a large amount of information dropout, bring great loss, transmit more information and the safe and reliable concern that more and more is subject to people that guarantees to communicate by letter so how effectively to utilize Internet resources to satisfy.
The transmission optical-fiber network is owing to adopt centralized management, come all resources of unified management dispatch network by central site network, so that along with the expansion of network size, the burden of webmaster is more and more heavier, be difficult to network state changed and make fast and accurately reaction, and because the configuration of optical channel needs manual intervention, can not adapt to dynamically in real time the service needed of continuous variation, and network equipment interoperability is poor.These characteristics so that conventional network techniques be difficult to satisfy the demand.Typical Representative as ASON of future generation, ASON refers to a kind of with SDH (Synchronous Digital Hierarchy, SDH (Synchronous Digital Hierarchy)) and OTN (OpticalTransport Network, optical transfer network) be basic, under the control of route and signaling, automatically finish the optical-fiber network that light is connected function of exchange, webmaster carried out centralized control to the scheduling of resource of network before it was different from, but by each node according to connection request dynamically in the line computation route with carry out resource and distribute to reserve.
The architecture of the ASON of future generation that international telecommunication union telecommunication's standard provides: network is divided into management plane, control plane and transmission plane three dimensions, transmit the plane and be again physical plane, be the physical layer of network, be responsible for transmission, Performance Detection, Network Fault Detection and the protection of the information of finishing and switch; Control plane is mainly realized calling and connection management, is automatically found and the function such as path selection, by signaling network managed automatically; Management plane provides an interface for the network manager to the management of network.The topmost characteristics that ASON is different from conventional optical network are to have introduced control plane, pass through control plane, network can carry out dynamically resource discovering, link management, accept user's service request dynamically, and carry out dynamically route and calculate, create or remove connection, upgrade network topology etc., thereby realize " automatically exchange ".Control plane mainly comprises signaling, route and resource management, and signaling be used for to be transmitted instruction, with the auto switching of automatic realization establishment of connection and dismounting, protection etc.; Route is used to service request to calculate and select bang path; The discovery of resource management intervention resource and management etc.
ASON finishes automatic exchange and is connected control by control plane, and network topology and available resources thereof are bases of ASON network operation, and under the perfect condition, network topology and resource should be automatically to find, network topology be node with connectionAutomatically discovery technique refers to that the ASON network is by LMP (LinkManagement Protocol, LMP Link Manager Protocol) realize to transmit between the plane, the connection between the control domain, and identification and the business of being connected that above-mentioned connection is supported, finishing wrong company of the port mapping, the binding of logic syntople, the optical fiber that transmit the plane detects and the professional ability announcement, its objective is and assist resource management and routing, reduce the workload of artificial preparation.Particularly, the LMP agreement is finished automatic discovery procedure by operations such as control channel foundation, data link verification, link attribute associations.After a data link verification succeeds, follow-up link attribute association process can be notified two end nodes to data link TE_LINK field information, the data link of both link ends, carry out the binding of port mapping and logic syntople with this, the English full name of TE_LINK field is Traffic Engineering Link flow engineering link, refers to one or more data link with same alike result are combined in logic flow engineering link.
The LMP agreement is as a relatively complete Link Resource Manager agreement, in the management that transmits on the plane classification, binding, sign, availability and fault location that can complete paired data link, on control plane, also can finish the maintenance to control channel self, tentatively realize intellectuality.
Although the ASON networking develops rapidly now, a large amount of traditional SDH networks also continue to be used by the client.In the process of intelligent ASON network Development, traditional SDH is professional and ASON is professional can coexist at traditional SDH network, and SDH function and ASON function need to be used.Therefore have on the ASON function device at some, possible some resource belongs to the transmission plane to be used, and the other resource belongs to the ASON control plane to be used, and so just need to control some resource division to ASON.But also there are between the business of control plane control and the traditional business the mutually process of migration and conversion, the migration that this will cause control plane and transmit the administration authority of plane resource.If resource size and administration authority that two ends are divided are inconsistent, some problems that can cause follow-up business to be set up.Even in ASON network completely, because ASON is the distributed intelligence network, also can there be in some cases the inconsistent situation of occupation condition between adjacent node.But the LMP agreement can't be found the inconsistent mistake of resource between these neighbor nodes at present, therefore just can not change flexibly the Internet Transmission path, has hindered the raising of network service quality.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method and system of automatic discovery resource state between adjacent nodes is provided, and overcomes in the prior art LMP agreement and can't find the inconsistent defective of resource between adjacent node.
The technical solution used in the present invention is, the method of described automatic discovery resource state between adjacent nodes, the link management protocol LMP protocol controller disposes control channel and data link between adjacent node, adjacent node carries out the data link verification, be called first node if initiate the node of data link verification, another node is called Section Point;
After the data link verification succeeds, first node sends LinkSummary message, and adds the resource allocation information of local data-link in the DATA_LINK field therein;
After Section Point is received LinkSummary message, the resource allocation information of first node and Section Point data link is compared, if it is consistent with the resource allocation information of Section Point data link to judge first node, then reply LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in error code, indicate the inconsistent mistake of the resource allocation information that has the two ends data link.
The mode of the described resource allocation information that adds the first node data link in the DATA_LINK of LinkSummary message field is as follows: increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.
Described subobject comprises the resource allocation information of type Type, length L ength, switch type Switch Type, type of coding Enc Type and data link.
Described resource allocation information comprises that link management authority and link use state information.
As a kind of preferred technical scheme, described resource allocation information further comprises TE_LINK field and/or data link mapping relations information, when the link management authority of judging first node and Section Point data link and link use status information accordance, before replying LinkSummaryAck message, Section Point is judged further whether TE_LINK field in the LinkSummary message that first node sends and/or data link mapping relations exist with local corresponding data and is conflicted, if, then reply LinkSummaryNack message, and in error code, indicate TE_LINK field and/or the inconsistent mistake of data link mapping relations that has the two ends data link, otherwise reply again LinkSummaryAck message.
As the preferred technical scheme of another kind, the method of described automatic discovery resource state between adjacent nodes further comprises: when indicating the inconsistent mistake of the resource allocation information that has the two ends data link in error code, Section Point is with the inconsistent error reporting webmaster of the resource allocation information of described two ends data link.
The present invention also provides a kind of system of automatic discovery resource state between adjacent nodes, comprising:
The LMP protocol controller is used for configuration control channel and data link between adjacent node, carries out the data link verification, and upgrades the local management information storehouse according to the situation of change of the resource allocation information of data link;
Add the configuration information module, be used for increasing at the DATA_LINK field end that sends LinkSummary message the subobject of the resource allocation information of a storage Local Data link;
Relatively judge module is used for after receiving the LinkSummary message that far-end is sent, and the resource allocation information of far-end and Local Data link is compared, if it is consistent to judge the resource allocation information of two ends data link, then replys LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in the error code field, the inconsistent mistake of resource allocation information that has the two ends data link is described.
The mode of the described resource allocation information that adds the Local Data link in the DATA_LINK field is as follows: increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.
Described subobject comprises the resource allocation information of type Type, length L ength, switch type Switch Type, type of coding Enc Type and data link.
Described resource allocation information comprises that link management authority and link use state information, and TE_LINK field and/or data link mapping relations information.
Adopt technique scheme, the present invention has following advantages at least:
The method and system of automatic discovery resource state between adjacent nodes of the present invention, after data link verification succeeds between adjacent node, make node in the DATA_LINK field of the LinkSummary message that sends, add the resource allocation information of local data-link, then the node of receiving this LinkSummary message therefrom the Gains resources configuration information and with the comparing of local data, judge whether both are consistent, if inconsistent, then in error code, indicate the inconsistent mistake of the resource allocation information that has the two ends data link, with the inconsistent error reporting webmaster of the resource allocation information of described two ends data link, be prompted to the user and process at last.Adopt the method for the invention and system, not only can finish resource discovering between the neighbor node that transmits the different transport layers in plane, and can carry out the consistency desired result that link uses the resource allocation informations such as state and link management authority, provide reference for changing flexibly the Internet Transmission path, and then can greatly improve network service quality.
Description of drawings
Fig. 1 is the data structure of the DATA_LINK field of the present invention after expansion;
Fig. 2 is the data structure of subobject sub object of the present invention;
Fig. 3 is SDH network organizing figure in the first embodiment of the invention;
Fig. 4 is the method flow diagram of the described automatic discovery resource state between adjacent nodes of first embodiment of the invention;
Fig. 5 is the data structure of the subobject sub object of first node A in the first embodiment of the invention;
Fig. 6 is the system architecture diagram of automatic discovery resource state between adjacent nodes of the present invention;
Fig. 7 is the method flow diagram of the described automatic discovery resource state between adjacent nodes of second embodiment of the invention.
Embodiment
Reach technological means and the effect that predetermined purpose is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the method and system of the described automatic discovery resource state between adjacent nodes that the present invention is proposed is described in detail as follows.
First embodiment of the invention, a kind of method of automatic discovery resource state between adjacent nodes as shown in Figure 4, comprises the steps:
Step 1, LMP protocol controller carry out MIB (ManagementInformation Base) configuration, the resource allocation information of configuration data link crosspoint in the local management information storehouse between adjacent node.The MIB configuration comprises configuration control channel and data link, the configuration data link refers to the essential informations such as configuration interface index, verification attribute, then carry out the data link verification at adjacent node, the node of wherein initiating the data link verification is called first node, and another node is called Section Point.The LMP protocol controller is the title of LMP protocol function, the described MIB configuration that the LMP agreement is finished, describedly carries out the process of data link verification and safeguards that control channel, link attribute association etc. all are technology well known in the art, so locate not describe in detail.The LMP protocol controller can also upgrade the local management information storehouse according to the situation of change of the resource allocation information of data link.
Step 2, after the data link verification succeeds, first node sends LinkSummary message, and add the resource allocation information of crosspoint in the local data-link in the DATA_LINK field therein, concrete, the present invention has expanded that the LMP agreement is RFC (Request For Comments in the prior art, Request for Comment) the existing data structure of DATA_LINK field of 4204 document definition, adding a new member at the place, end of DATA_LINK field is subobject sub object, as shown in Figure 1.The data structure of described subobject sub object as shown in Figure 2, comprise type Type, length L ength, switch type Switching Type, five members such as type of coding Enc Type and resource allocation information, described resource allocation information comprises that link management authority and link use state information administrate and use state, the field value of setting type Type is 10, the field value of length L ength represents the shared byte length of whole subobject sub object, and the field value of described length L ength can be determined flexibly according to applied network and bandwidth.The field value of switch type SwitchingType and type of coding Enc Type can be with reference to RFC3471 and RFC4328 document.In order to make things convenient for message transmission and processing, storage organization adopts 4 byte-aligned, and the byte of vacating fills 0.Link management authority information and link use state information all with crosspoint in the network as unit, in the SDH network, the VC exchange refers to VPI (the Virtual Path Identifier with the cell of input, virtual path identifier) value and VCI (Virtual Channel Identifier, Virtual Path Identifier) value is rewritten as simultaneously new value and gives cell and output, then be the VC exchange, crosspoint is exactly VC-4, crosspoint is exactly wavelength or optical fiber in WDM (Wavelength Division Multiplexing, wavelength division multiplexing) network.
During concrete the use, article one, the data link may comprise a plurality of cross-over units, use state information as example with link management authority information and the link that records a crosspoint with 2 bit positions, if low level 0 expression link circuit resource is managed the plane and uses, low level 1 expression link circuit resource is controlled the plane and is used, high-order 0 expression link idle, high-order 1 expression link is occupied, so, 00 expression link circuit resource is managed plane use and idle, 10 expression link circuit resources are managed plane use and occupied, and 01 expression link circuit resource is controlled, and use on the plane and the free time, and 11 expression link circuit resources are controlled plane use and occupied.Described link management authority information and link use state information to store according to byte order, and each byte the inside can be stored from low to high or from high to low.
After step 3, Section Point are received LinkSummary message, link management authority and the link use state of first node and Section Point data link are compared, the link management authority of Section Point and link use state to be obtained from the local management information storehouse by local terminal LMP protocol controller, in the process of ASON operation, the assembly of control plane can be with the situation of change notice local terminal LMP protocol controller of the resource allocation information of data link, and described LMP protocol controller upgrades the local management information storehouse accordingly.
Use state consistency if judge link management authority and the link of first node and Section Point data link, then reply LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in error code, indicate the inconsistent mistake of the resource allocation information that has the two ends data link;
Above-mentioned deterministic process is to regard link management authority and link as an integral body with state information to judge, as long as the link management authority and or link use have in these two resource allocation informations of state one inconsistent, to use state information to do as a whole be exactly inconsistent between first node and Section Point for link management authority and link so.
Step 4, inconsistent when wrong when in error code, indicating the resource allocation information that has the two ends data link, Section Point is with the inconsistent error reporting webmaster of the resource allocation information of described two ends data link, after first node is received LinkSummaryNack message, the also inconsistent error reporting webmaster of resource allocation information of just described two ends data link.Because described resource allocation information comprises link management authority and link and uses state information administrate and use state, the inconsistent mistake of described resource allocation information comprise at least the inconsistent mistake of link management authority and link use the inconsistent mistake of state one of them.
The below adjacent first node A and Section Point B in the SDH network as shown in Figure 3, describe the implementation procedure of the method for automatic discovery resource state between adjacent nodes of the present invention as example.
First node A and Section Point B light mouth speed all are 655Mbps, belong to the standard speed grade of the synchronous transfer mode STM-4 (Synchronous Transport Module-4) of SDH signal,
Step 1, LMP protocol controller carry out the MIB configuration between first node A and Section Point B, and link management authority information and the link of configuration data link crosspoint uses state information in each comfortable local management information storehouse of the LMP protocol controller of two nodes.The MIB configuration comprises configuration control channel and data link, and the configuration data link refers to the essential informations such as configuration interface index, verification attribute.Because first node A and Section Point B optical fiber interface speed all are 655Mbps, its bandwidth comprises 4 crosspoints, the link management authority information and the link that record a crosspoint with 2 bit positions use state information, therefore only need 1 byte just can represent the situation of this data link circuit resource configuration information, from left to right, if first node A disposes front 2 VC-4 bandwidth and uses to transmitting the plane, the B node disposes the 1st VC-4 bandwidth and uses to transmitting the plane, first node A is that Binary Zero 1010000 record link administration authority information and link use state information with 0x50 so, and Section Point B is that Binary Zero 1010100 record link administration authority information and link use state information with 0x54.Then adjacent node begins the data link verification, supposes that initiatively verification side is first node A.
Step 2, after the data link verification succeeds, first node A sends LinkSummary message, and link management authority information and the link use state information of adding local data-link in the DATA_LINK field therein, the data structure of the subobject that adds in the DATA_LINK of LinkSummary message field is as shown in Figure 5.
After step 3, Section Point are received LinkSummary message, the resource allocation information 01010100 of first node resource allocation information 01010000 with the Section Point data link compared, because from left to right count, it is the administration authority information inconsistency of the crosspoint of the 3rd 2bit position record, so through the administration authority information inconsistency in the resource allocation information of relatively judging by turn the two ends data link, then reply LinkSummaryNack message, and in error code, indicate the administration authority information inconsistency mistake that has the two ends data link;
Step 4, when in error code, indicating the administration authority information inconsistency mistake that has the two ends data link, Section Point is with the administration authority information inconsistency error reporting webmaster of described two ends data link, after first node is received LinkSummaryNack message, the also inconsistent error reporting webmaster of resource allocation information of just described two ends data link.
Second embodiment of the invention, a kind of method of automatic discovery resource state between adjacent nodes as shown in Figure 7, comprises the steps:
Step 1, LMP protocol controller carry out MIB configuration, the resource allocation information of crosspoint in the configuration data link in the local management information storehouse between adjacent node.The MIB configuration comprises configuration control channel and data link, the configuration data link refers to the essential informations such as configuration interface index, verification attribute, then adjacent node carries out the data link verification, and the node of wherein initiating the data link verification is called first node, and another node is called Section Point.The described MIB configuration that the LMP agreement is finished, describedly carry out the process of data link verification and safeguard that control channel, link attribute association etc. all are technology well known in the art, so locate not describe in detail.The LMP protocol controller can also upgrade the local management information storehouse according to the situation of change of the resource allocation information of data link.
Step 2, after the data link verification succeeds, first node sends LinkSummary message, and add the resource allocation information of crosspoint in the local data-link in the DATA_LINK field therein, concrete, having added a new member at the place, end of DATA_LINK field is subobject sub object, as shown in Figure 1.The data structure of described subobject sub object, comprise five members such as type Type, length L ength, switch type Switching Type, type of coding Enc Type and resource allocation information, described resource allocation information comprises that link management authority and link use state information administrate and use state, and TEL_INK field and/or data link mapping relations information.The field value of type Type is 10, and the field value of length L ength represents the shared byte length of whole subobject sub object, and the field value of switch type Switching Type and type of coding Enc Type can be with reference to RFC3471 and RFC4328 document.In order to make things convenient for message transmission and processing, storage organization adopts 4 byte-aligned, and the byte of vacating fills 0.It all is as unit with crosspoint in the network that link management authority information and link use state information.
During concrete the use, article one, the data link may comprise a plurality of cross-over units, use state information as example with link management authority information and the link that records a crosspoint with 2 bit positions, if low level 0 expression link circuit resource is managed the plane and uses, low level 1 expression link circuit resource is controlled the plane and is used, high-order 0 expression link idle, high-order 1 expression link is occupied, so, 00 expression link circuit resource is managed plane use and idle, 10 expression link circuit resources are managed plane use and occupied, and 01 expression link circuit resource is controlled, and use on the plane and the free time, and 11 expression link circuit resources are controlled plane use and occupied.Described link management authority information and link use state information to store according to byte order, and each byte the inside can be stored from low to high or from high to low.
After step 3, Section Point are received LinkSummary message, use state information to compare link management authority and the link of first node and Section Point data link, the link management authority of Section Point and link use state information to be obtained from the local management information storehouse by local terminal LMP protocol controller, in the process of ASON operation, the assembly of control plane can be with the situation of change notice local terminal LMP protocol controller of the resource allocation information of data link, and described LMP protocol controller upgrades the local management information storehouse accordingly.
Use status information accordance if judge link management authority and the link of first node and Section Point data link, Section Point is judged further whether TE_LINK field in the LinkSummary message that first node sends and/or data link mapping relations exist with local corresponding data and is conflicted, if, then reply LinkSummaryNack message, and in error code, indicate TE_LINK field and/or the inconsistent mistake of data link mapping relations that has the two ends data link, otherwise reply LinkSummaryAck message; The data link mapping relations comprise local interface address Local Interface ID and the remote interface address Remote Interface ID in the DATA_LINK field, because TE_LINK field and data link mapping relations are existing two contents in the LinkSummary message, after node is received LinkSummary message, just can obtain according to the message structure parsing.In addition, because the error code of TE_LINK field and these two correspondences of data link mapping relations has had regulation in the LMP agreement, therefore can indicate in error code is that TE_LINK field and/or data link mapping relations are inconsistent;
Use state information inconsistent if judge link management authority and the link of first node and Section Point data link, then reply LinkSummaryNack message, and in error code, indicate link management authority and/or the inconsistent mistake of link use state that has the two ends data link;
Above-mentioned deterministic process is to regard link management authority and link as an integral body with state information to judge, as long as the link management authority and or link use have in these two resource allocation informations of state one inconsistent, to use state information to do as a whole be exactly inconsistent between first node and Section Point for link management authority and link so.
Step 4, inconsistent when wrong when in error code, indicating the resource allocation information that has the two ends data link, Section Point is with the inconsistent error reporting webmaster of the resource allocation information of described two ends data link, after first node is received LinkSummaryNack message, the also inconsistent error reporting webmaster of resource allocation information of just described two ends data link.Because described resource allocation information comprises link management authority and link and uses state information, and TE0_LINK field and data link mapping relations information, the inconsistent mistake of resource allocation information comprise at least the inconsistent mistake of administration authority, link use the inconsistent mistake of state, the inconsistent mistake of TE_LINK field and the inconsistent mistake of data link mapping relations one of them.
Third embodiment of the invention, a kind of system of automatic discovery resource state between adjacent nodes as shown in Figure 6, comprising:
The LMP protocol controller is used for configuration control channel and data link between adjacent node, safeguards control channel, to carry out the data link verification related with link attribute, and according to the situation of change renewal local management information storehouse of the resource allocation information of data link.The LMP protocol controller is the title of LMP protocol function, the described MIB configuration that the LMP agreement is finished, describedly carries out the process of data link verification and safeguards that control channel, link attribute association etc. all are technology well known in the art, so locate not describe in detail.The LMP protocol controller can also upgrade the local management information storehouse according to the situation of change of the resource allocation information of data link.
Add the configuration information module, be used in the DATA_LINK field that sends LinkSummary message, adding the resource allocation information of Local Data link, particularly, increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.Described subobject comprises the resource allocation information of type Type, length L ength, switch type Switch Type, type of coding Enc Type and data link, and described resource allocation information comprises that link management authority and link use state information.
Compare judge module, be used for after receiving the LinkSummary message that far-end is sent, link management authority and the link use state of far-end and Local Data link are compared, use state consistency if judge link management authority and the link of two ends data link, then reply LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in the error code field, the inconsistent mistake of resource allocation information that has the two ends data link is described.
The mistake reporting module is used for the inconsistent error reporting webmaster of the resource allocation information of described two ends data link.Because described resource allocation information comprises link management authority and link and uses state information, the inconsistent mistake of resource allocation information comprise at least the inconsistent mistake of link management authority and link use the inconsistent mistake of state one of them.
Fourth embodiment of the invention, a kind of system of automatic discovery resource state between adjacent nodes comprises:
The LMP protocol controller is used for configuration control channel and data link between adjacent node, safeguards control channel, to carry out the data link verification related with link attribute, and according to the situation of change renewal local management information storehouse of the resource allocation information of data link.
Add the configuration information module, be used in the DATA_LINK field that sends LinkSummary message, adding the resource allocation information of Local Data link, particularly, increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.Described subobject comprises the resource allocation information of type Type, length L ength, switch type Switch Type, type of coding Enc Type and data link, described resource allocation information comprises that link management authority and link use state information, and TE_LINK field and/or data link mapping relations information.
Compare judge module, be used for after receiving the LinkSummary message that far-end is sent, use state information to compare link management authority and the link of far-end and Local Data link, use status information accordance if judge link management authority and the link of two ends data link, further judge whether TE_LINK field in the LinkSummary message of first node transmission and/or data link mapping relations exist with local corresponding data and conflict, if, then reply LinkSummaryNack message, and in error code, indicate TE_LINK field and/or the inconsistent mistake of data link mapping relations that has the two ends data link, otherwise reply LinkSummaryAck message;
Use state information inconsistent if judge link management authority and/or the link of two ends data link, then reply LinkSummaryNack message, and in the error code field, indicate link management authority and/or the inconsistent mistake of link use state information that has the two ends data link.
The mistake reporting module is used for the inconsistent error reporting webmaster of the resource allocation information of described two ends data link.Because described resource allocation information comprises link management authority and link and uses state information, and TE_LINK field and data link mapping relations information, the inconsistent mistake of resource allocation information comprise at least the inconsistent mistake of link management authority, link use the inconsistent mistake of state, the inconsistent mistake of TE_LINK field and the inconsistent mistake of data link mapping relations one of them.
By the explanation of embodiment, should be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended diagram only provide with reference to the usefulness of explanation, the present invention is limited.
Claims (10)
1. method of automatically finding resource state between adjacent nodes, it is characterized in that, the link management protocol LMP protocol controller disposes control channel and data link between adjacent node, adjacent node carries out the data link verification, be called first node if initiate the node of data link verification, another node is called Section Point;
After the data link verification succeeds, first node sends LinkSummary message, and adds the resource allocation information of local data-link in the DATA_LINK field therein;
After Section Point is received LinkSummary message, the resource allocation information of first node and Section Point data link is compared, if it is consistent with the resource allocation information of Section Point data link to judge first node, then reply LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in error code, indicate the inconsistent mistake of the resource allocation information that has the two ends data link.
2. the method for described automatic discovery resource state between adjacent nodes according to claim 1, the mode that it is characterized in that the described resource allocation information that adds the first node data link in the DATA_LINK of LinkSummary message field is as follows: increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.
3. the method for described automatic discovery resource state between adjacent nodes according to claim 2 is characterized in that described subobject comprises the resource allocation information of type (Type), length (Length), switch type (Switch Type), type of coding (Enc Type) and data link.
4. the method for described automatic discovery resource state between adjacent nodes according to claim 3 is characterized in that described resource allocation information comprises that link management authority and link use state information.
5. according to claim 1 and 2 or the method for 4 described automatic discovery resource state between adjacent nodes, it is characterized in that described resource allocation information further comprises TE_LINK field and/or data link mapping relations information, when the link management authority of judging first node and Section Point data link and link use status information accordance, before replying LinkSummaryAck message, Section Point is judged further whether TE_LINK field in the LinkSummary message that first node sends and/or data link mapping relations exist with local corresponding data and is conflicted, if, then reply LinkSummaryNack message, and in error code, indicate TE_LINK field and/or the inconsistent mistake of data link mapping relations that has the two ends data link, otherwise reply again LinkSummaryAck message.
6. the method for described automatic discovery resource state between adjacent nodes according to claim 5, it is characterized in that further comprising: when indicating the inconsistent mistake of the resource allocation information that has the two ends data link in error code, Section Point is with the inconsistent error reporting webmaster of the resource allocation information of described two ends data link.
7. system that automatically finds resource state between adjacent nodes is characterized in that comprising:
The LMP protocol controller is used for configuration control channel and data link between adjacent node, carries out the data link verification, and upgrades the local management information storehouse according to the situation of change of the resource allocation information of data link;
Add the configuration information module, be used in the DATA_LINK field that sends LinkSummary message, adding the resource allocation information of Local Data link;
Relatively judge module is used for after receiving the LinkSummary message that far-end is sent, and the resource allocation information of far-end and Local Data link is compared, if it is consistent to judge the resource allocation information of two ends data link, then replys LinkSummaryAck message; Otherwise reply LinkSummaryNack message, and in the error code field, the inconsistent mistake of resource allocation information that has the two ends data link is described.
8. the system of described automatic discovery resource state between adjacent nodes according to claim 7, the mode that it is characterized in that the described resource allocation information that adds the Local Data link in the DATA_LINK field is as follows: increase a subobject at DATA_LINK field end, be used for the resource allocation information of storage data link.
9. the system of described automatic discovery resource state between adjacent nodes according to claim 8 is characterized in that described subobject comprises the resource allocation information of type (Type), length (Length), switch type (Switch Type), type of coding (Enc Type) and data link.
10. according to claim 7 or the system of 8 or 9 described automatic discovery resource state between adjacent nodes, it is characterized in that described resource allocation information comprises that link management authority and link use state information, and TE_LINK field and/or data link mapping relations information.
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| CN102857835B (en) * | 2011-06-29 | 2017-06-13 | 中兴通讯股份有限公司 | Link attribute check method between flexible grid optical network node and node |
| CN103067073B (en) * | 2011-10-19 | 2017-03-01 | 中兴通讯股份有限公司 | A kind of management method of black link optical interface and device |
| CN102769545B (en) * | 2012-07-27 | 2015-06-10 | 瑞斯康达科技发展股份有限公司 | Method and system for multipath configuration of remote equipment and remote equipment management |
| CN105282793B (en) * | 2014-05-29 | 2018-10-30 | 普天信息技术有限公司 | Negotiate the method and device that UE has found resource in D2D between adjacent base station |
| CN107483366B (en) * | 2016-06-07 | 2021-11-05 | 中兴通讯股份有限公司 | Automatic connection method and device for interface expansion equipment of longitudinal stacking environment |
| CN108631891B (en) * | 2017-03-24 | 2022-06-17 | 中兴通讯股份有限公司 | Method and device for measuring link between communication nodes |
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