CN101547115B - Method, system and node for configuring tandem-connection monitoring information - Google Patents
Method, system and node for configuring tandem-connection monitoring information Download PDFInfo
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- CN101547115B CN101547115B CN200810102758A CN200810102758A CN101547115B CN 101547115 B CN101547115 B CN 101547115B CN 200810102758 A CN200810102758 A CN 200810102758A CN 200810102758 A CN200810102758 A CN 200810102758A CN 101547115 B CN101547115 B CN 101547115B
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Abstract
The invention discloses a method, a system and a node for configuring tandem-connection monitoring information, belonging to the field of network communication. The method comprises the following steps: the node receives a signal carried with TCM information and used for connection establishment during the process of establishing the service connection; and the node judges whether the node is a TCM enabling point or not according to the TCM information, and if the node is a TCM enabling point, the local TCM information is configured. The node comprises a receiving module and a configuration module; or the node comprises a computation module and a transmitting module. The system comprises a first node and a second node. The invention realizes the automatic TCM information configuration, and compared with the prior method of manual configuration by a network administrator, the invention greatly enhances the flexibility of configuring the TCM information, reduces the complexity of configuration and processing, is simple and convenient and is easy to realize by using the prior signal for connection establishment.
Description
Technical field
The present invention relates to network communication field, particularly a kind of method and system of configuring tandem-connection monitoring information and node.
Background technology
SDH (Synchronous Digital Hierarchy; SDH), OTN (Optical Transport Network, optical transfer network); Ethernet business such as (Ethernets) all has TCM (Tandem Connection Monitoring; Tandem Connection Monitor) function is mainly used between a plurality of systems of different operators or equipment vendor, estimates the network quality of different operators or equipment vendor.For one professional end to end, through using the TCM function, come the quality situation of different piece (territory) on the path of differentiated service process.
When using the TCM function, need enable the TCM function to some node of business process, and each node that enables the TCM function is carried out function setting, such as, professional for SDH, information such as TCM source point and TCM Su Dian need be set; Professional for OTN, TTI (Trail TraceIdentifier, path trace sign) byte, BIP information such as (Bit-Interleaved Parity, Bit-Interleaved Parity thresholdings) that TCM enables point, TCM rank, each rank TCM correspondence need be set; Professional for Ethernet, information such as MEP (Maintenance association End Point, Maintenance association End Point) level need be set.
Take the webmaster unification that the TCM information of each each node of subnet is set in the prior art, comprise whether enabling the TCM function, and the TCM rank etc.When webmaster carried out manual configuration TCM information, normally each boundary node with management domain was configured as enabling a little of TCM, and the TCM rank of the boundary node of same management domain is configured to identical rank.Wherein, the division of management domain is normally divided according to the manufacturer of equipment or operator, and at same management domain, the same manufacturer under the same operator is at same management domain as the equipment under the same operator, and different vendor is at different management domain etc.
For example, referring to Fig. 1, three child network Area1, Area0 and Area2 are arranged in the network; Respectively corresponding three management domains: territory 1, territory 2 and territory 3, PE (Provider Edge, carrier network edge device) 1 is the boundary node of Area1; ABR (Area Border Router, Area Border Router) 1 and ABR2 are the public boundary node of Area1 and Area0, and ABR3 and ABR4 are the public boundary node of Area0 and Area2; PE2 and PE3 are the boundary node of Area2, and P is a carrier network devices, PE1 and CE (Customer Edge; User network boundary device) 1 links to each other, and PE2 links to each other with CE2.When webmaster carries out manual configuration TCM information, can PE1, ABR1, ABR3 and PE2 be configured to TCM respectively and enable a little, and PE1, ABR1, ABR3 and PE2 are configured to identical rank, like the TCM1 rank.
The inventor finds that above-mentioned prior art has following shortcoming at least in realizing process of the present invention: along with the increase of network size and network complexity, adopt the flexible method property of webmaster manual configuration limited, and the complexity that can increase configuration and handle.
Summary of the invention
In order to improve the flexibility of configuring tandem-connection monitoring information, the embodiment of the invention provides a kind of method and system and node of configuring tandem-connection monitoring information.Said technical scheme is following:
On the one hand, the embodiment of the invention provides a kind of method of configuring tandem-connection monitoring information, and said method comprises:
Connect in the process of setting up in business, node receives the signaling of setting up said connection of carrying Tandem Connection Monitor TCM information, and said TCM information comprises that TCM enables dot information and TCM unpaired message;
Said node judges according to said TCM information whether this node is that TCM enables a little, if then dispose local TCM information.
On the other hand, the embodiment of the invention also provides a kind of node, and said node comprises:
Receiver module is used for connecting the process of setting up in business, receives the signaling of setting up said connection of carrying TCM information, and said TCM information comprises that TCM enables dot information and TCM unpaired message;
Configuration module is used for after said receiver module is received said signaling, judges according to said TCM information whether said node is that TCM enables a little, if then dispose local TCM information.
On the other hand, the embodiment of the invention also provides a kind of node, and said node comprises:
Computing module is used for determining picks up relevant information of TCM according to topology information and the traffic engineering information known, and said TCM information comprises that TCM enables dot information and TCM unpaired message;
Sending module is used to send the signaling of setting up said connection, and in said signaling, carries the TCM information that said computing module is determined.
On the other hand, the embodiment of the invention also provides a kind of system of configuring tandem-connection monitoring information, and said system comprises:
First node is used for determining picks up relevant information of TCM according to topology information and the traffic engineering information known; Also be used for downstream and send the signaling of setting up professional connection, and in said signaling, carry said TCM information, said TCM information comprises that TCM enables dot information and TCM unpaired message;
Section Point is used to receive the signaling of setting up said connection of the TCM information of carrying that updrift side sends, and judges according to said TCM information whether this node is that TCM enables a little, if, the local TCM information of configuration then.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
Realized carrying out automatically the configuration of TCM information, compared, greatly improved the flexibility of configuration TCM information with the method for existing employing webmaster manual configuration; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.
Description of drawings
Fig. 1 is the networking sketch map that connects in the prior art;
Fig. 2 is the method flow diagram of the configuring tandem-connection monitoring information that provides of the embodiment of the invention 1;
Fig. 3 is that configuration TCM enables a little and the class information sketch map in the embodiment of the invention 1;
Fig. 4 is the method flow diagram of the configuring tandem-connection monitoring information that provides of the embodiment of the invention 3;
Fig. 5 is the node structure figure that the embodiment of the invention 4 provides;
Fig. 6 is the node structure figure that the embodiment of the invention 5 provides;
Fig. 7 is the system construction drawing of the configuring tandem-connection monitoring information that provides of the embodiment of the invention 6.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
The embodiment of the invention disposes TCM information through the implementing signalling that connects automatically in the process that the business connection is set up.Wherein, TCM information includes but not limited to class information that enables dot information and TCM of TCM or the like.
The professional source node that connects is under condition of different in the embodiment of the invention; Possibly partly or entirely understand the topology information and TE (the Traffic Engineering of whole network; Traffic engineering) information specifically comprises following three kinds of situation: 1) source node is understood the topology information and the TE information in each territory in the whole network; 2) source node is only understood the TE information of boundary node in connectivity and other all territories in topology information and TE information and other all territories in this territory; 3) source node is only understood the topology information in this territory and the Egress node information in this territory.
The method of the configuring tandem-connection monitoring information that the embodiment of the invention provides specifically comprises: connect in the process of setting up in business, node receives the signaling of setting up said connection of carrying TCM information; Said node judges according to this TCM information whether this node is that TCM enables a little, if then dispose local TCM information.Following mask body illustrates.
Embodiment 1
The source node that connects in the present embodiment is the node in the network; And this source node has been known the topology information and the TE information in each territory in the whole network; Therefore can confirm all ERO (Explicit Route Object; Route display object) information, thus confirm that all TCM enable dot information and TCM unpaired message.Referring to Fig. 2, the embodiment of the invention provides a kind of method of configuring tandem-connection monitoring information, specifically comprises:
201: in the process that connects, the source node in this connection is according to the topology information and the traffic engineering information of the whole network of having known, and the strictness that calculates from this source node to this purpose of connecting node shows route.
Strictness demonstration route (Strict Explicit Route) in the embodiment of the invention is meant strictly stipulates (the LabelSwitched Path from LSP; Label switched path) inlet until each of outlet jump, just route each node of process all confirm.
202: source node shows route according to the strictness that calculates, and determines TCM information, and this TCM information comprises that all TCM in this connection enable dot information and all TCM unpaired messages.
Source node will connect the boundary node in part territory or whole territories of process in the present embodiment; The Ingress node and the Egress node that comprise this territory; Confirm as enabling a little of TCM, and the Ingress node in this territory and Egress node confirmed as belong to same TCM rank, promptly match.
203: source node sends the signaling that connects according to existing road construction flow process, and source node also carries the above-mentioned TCM information of determining in this signaling.
The TCM information that source node is determined in the present embodiment is in the whole process that connects; Be delivered to this purpose of connecting node along the signaling that connects always, promptly connect in the signaling that connects that each node of process receives and all can comprise this TCM information.Carrying TCM information can realize through the means of signaling that expansion connects, and as in the signaling that connects, increasing a new field, the content of above-mentioned TCM information as this new field is filled up in the signaling that connects.In the present embodiment, each node that connects process is all adopted the signaling that expansion in a like fashion connects, and in signaling, transmits TCM information, comprises the boundary node in source node, territory and the intermediate node in territory or the like.
204: after a node in the above-mentioned connection is received the signaling that connects of carrying TCM information, judge according to the TCM information in the signaling whether oneself is that TCM enables a little, if then dispose local TCM information.This node comprises the intermediate node and the boundary node in the territory that connects process, and when this node was intermediate node, can judge usually oneself was not that TCM enables a little, does not then carry out the TCM configuration, and this node is specially boundary node in the present embodiment.
Wherein, When next jumping of source node is this boundary node; Then the signaling received of this boundary node is the signaling that source node sends, and when also having intermediate node between source node and this boundary node, then the signaling received of this boundary node is different with the signaling of source node transmission.
When boundary node is the Ingress node in territory, place; The process of the TCM information that above-mentioned boundary node configuration is local is specific as follows: Ingress node enables dot information according to all TCM that carry in the signaling of receiving; Configuration enables the TCM function in this locality; And according to all TCM unpaired messages that carry in this signaling of receiving, the TCM rank that configuration is local.
For example; The TCM information of carrying in the signaling that Ingress node is received is that boundary node A1, A2 are that TCM enables a little, and A1 and A2 be that a pair of TCM is right, then when entry border node A1 receives this signaling; All TCM according to carrying in the signaling of receiving enable dot information; Judge whether oneself is that TCM enables a little, if then configuration enables the TCM function in this locality; Because A1 is an Ingress node, i.e. road construction this moment is no show Egress node A2 also, and then A1 can be provided with local TCM rank as required, as is rank TCM1 or the like.
When the Egress node of boundary node for the territory, place; And when having carried the TCM class information of Ingress node in this territory in the signaling of receiving; The process of the TCM information that above-mentioned boundary node configuration is local is specific as follows: Egress node enables dot information according to all TCM that carry in the signaling of receiving; Enable the TCM function in this locality configuration, and according to the TCM class information of the Ingress node in all TCM unpaired messages that carry in this signaling of receiving and territory, this Egress node place, the TCM rank that configuration is local.
For example, the TCM information of carrying in the signaling that Egress node is received is that boundary node B1, B2 are that TCM enables a little, and B1 and B2 are that a pair of TCM is right; And the rank of B1 is TCM2; Then when boundary node B2 receives this signaling, enable dot information, judge whether oneself is that TCM enables a little according to all TCM that wherein carry; If then configuration enables the TCM function in this locality; And according to B1 and B2 be a pair of TCM to and the rank of B1 be TCM2, it is TCM2 that local TCM rank is set, promptly the TCM rank with B1 is identical.
Further, said method also comprises:
205: boundary node sends the signaling that connects, and in the signaling of this transmission, carries the part or all of TCM information in the signaling of receiving in 204.The signaling that boundary node sends is the signaling after the signaling of receiving is upgraded; Wherein, Whole TCM information of in the signaling that boundary node sends, carrying in the signaling of receiving are meant; In the signaling that boundary node sends, carry all TCM that determine by source node that comprised in the signaling of receiving and enable dot information and all TCM unpaired messages, and the TCM information (being the TCM class information) that configures of other nodes that comprise in the signaling of receiving (be between source node and this boundary node TCM enable a little); The part TCM information of in the signaling that boundary node sends, carrying in the signaling of receiving is meant; For belonging to a pair of TCM pairing in all TCM information of carrying in the signaling of receiving and being somebody's turn to do TCM information to the node of all having accomplished the TCM configuration; Can be according to the pre-configured strategy in this locality; Be not carried in the signaling of transmission, remaining all is carried in the signaling of transmission.Wherein, Local pre-configured strategy can be configured in this locality by webmaster; The content of strategy perhaps is: for belonging to a pair of TCM pairing in all TCM information of carrying in the signaling of receiving and being somebody's turn to do the TCM information to the node of all having accomplished the TCM configuration, be not carried in the signaling that connects of local transmission; Perhaps be:, be carried in the local signaling that connects of sending for belonging to a pair of TCM pairing in all TCM information of carrying in the signaling of receiving and being somebody's turn to do TCM information to the node of all having accomplished the TCM configuration.
Further, boundary node can also carry or not carry the TCM information of this locality that has disposed according to the pre-configured strategy in this locality in the signaling of sending.Similarly, local pre-configured strategy can also be stipulated: in the signaling that send this locality, carry the local TCM information that has disposed; Perhaps stipulate: in the signaling that send this locality, do not carry the local TCM information that has disposed.For example, if boundary node is the Ingress node in territory, place, then can be in the signaling of this locality transmission, carrying the local TCM information that has disposed, so that the Egress node in this territory can dispose corresponding TCM class information in local configured strategy; If boundary node is the Egress node in territory, place; Then can be for not carrying the local TCM information that has disposed in local configured strategy; Because the Ingress node in this territory and Egress node belong to a pair of TCM pairing, and have all accomplished configuration, therefore follow-up node is when configuration TCM information; The TCM information that no longer needs these two nodes is not so can be carried in the signaling that connects.
For example,, comprise 3 territories in the territory 1: territory 2, territory 3 and territory 4, and territory 2 IncFlds 3 referring to Fig. 3; All territories have 8 boundary node: A1, B1, C1, C2, B2, B3, B4 and A2, and wherein, A1, A2 belong to territory 1; B1, B2 belong to territory 2, and C1, C2 belong to territory 3, and B3, B4 belong to territory 4; For convenience, in the example of this figure, omit the node in the territory, can comprise one or more nodes in the territory in the practical application.If boundary node is C2, comprised the TCM class information of C1 in the signaling of receiving, then when C2 sends signaling, because C1 has accomplished pairing with C2, therefore can be according to predetermined strategy, the TCM class information of in the signaling of transmission, not carrying C1.In addition, can carry in the signaling of transmission and also can not carry local TCM class information, specifically determine according to predetermined strategy.
Similarly, the boundary node in each territory of connection process all can add the TCM information of this locality in the signaling that connects to after local TCM information is accomplished in configuration, carries out the configuration of TCM information with convenient follow-up node.When signaling arrives destination node; Destination node is added TCM configure-ack information in the signaling of returning; So that whether notice upstream node TCM configuration is successful, when the process that connects finished, all TCM in the connection enabled a little also correspondingly to have accomplished the configuration of TCM information.
Further, said method can also be included in TCM information configuration when failure, through the step that the signaling node corresponding is done relevant treatment of returning that connects:
Connect accomplish after; The situation that possibly have part or all of node configuration TCM information failure in this connection; When node configuration TCM information is failed, at the nodal information that carries the failure of configuration TCM information in the signaling that returns that connects, if connect failure; Then return signaling when disposing the node of TCM information, the TCM information deletion that on this node, has disposed during with road construction what connect; If connect successfully, then return signaling when disposing the node of TCM information what connect, whether this node deletes the TCM information that has disposed according to the local policy decision of having disposed, and according to actual conditions, can delete, and also can keep.
Be that example specifies below with Fig. 3.The current connection source node that will set up is A1, and destination node is A2, and source node A1 has been known the topology information and the TE information in each territory in the whole network; Therefore A1 can calculate the ERO information of whole piece LSP; Be A1-＞B1-＞C1-＞C2-＞B2-＞B3-＞B4-＞A2, because A1 can judge above-mentioned each node and be boundary node from known topology information, then can to determine TCM information following for A1: A1, B1, C1, C2, B2, B3, B4 and A2 all are that TCM enables a little; And A1, A2 belong to same TCM rank (being a pair of); B1, B2 belong to same TCM rank, and B3, B4 belong to same TCM rank, and C1, C2 belong to same TCM rank.When A1 carries out the road construction from A1 to A2 through signaling, enable at A1 point configuration TCM earlier, the TCM rank that A1 is set is TCM1; Send the signaling that connects then and give B1; In this signaling, carry above-mentioned TCM information, and carry the local information of A1 configuration, i.e. A1:TCM1 information.B1 receives that configuration TCM enables after the signaling, and the TCM rank that B1 is set is TCM2, sends signaling then and gives C1, and in this signaling, carry A1:TCM1, B1:TCM2 information.The C1 point receives that configuration TCM enables after the signaling, and the TCM rank that C1 is set is TCM3, sends signaling then and gives C2, and in this signaling, carry local information, and carry A1:TCM1, B1:TCM2, C1:TCM3 information in this signaling this moment.After C2 receives signaling, know that through the information of wherein carrying C2 and C1 are pairings, and C1 is configured to rank TCM3, then C2 is configured to the TCM3 rank automatically.In like manner, after B2 receives signaling, be configured to the TCM2 rank; After B3 receives signaling, select rank as required, can be identical for the rank before with it, like TCM2, also can be different (one professional end to end in some application scenarios, need the rank of TCM to have nothing in common with each other), like TCM4 or the like; After B4 receives signaling, be configured to the rank identical with B3, A2 is configured to the rank TCM1 identical with A1 after receiving signaling, thereby accomplishes the TCM configuration of the boundary node in all territories.
Further; In the present embodiment, if the user has specified TCM information (comprising that TCM enables dot information and TCM unpaired message), then the boundary node in territory judges whether this node is that TCM enables a little; If; Then the process of the local TCM information of configuration (promptly 204) is specific as follows: boundary node judges oneself whether to be that the TCM of user's appointment enables a little, if, then according to the TCM information of TCM information configuration this locality of user's appointment; Otherwise, judge according to the TCM information in the signaling of receiving whether oneself is that TCM enables a little, if then dispose local TCM information.Wherein, The TCM information of user's appointment can directly be configured on the relevant node (promptly be appointed as TCM by the user and enable node a little); Also can be configured on the source node; Source node is carried at the TCM information of user's appointment in this signaling when the signaling that transmission connects, and passes to each node in the connection by the road construction signaling.Each node in the connection can obtain the TCM information of user's appointment earlier in local information configured; If do not get access to; Promptly do not dispose in this locality; Then from the signaling of receiving that connects, obtain the TCM information of user's appointment, whether carry out TCM according to the TCM information decision of user's appointment of obtaining then and dispose in this locality; If do not comprise the TCM information of user's appointment in the signaling of receiving, then this node is according to the TCM information of the TCM information configuration this locality that is comprised in the signaling of receiving.The configuration of being correlated with according to the TCM information of user's appointment; Usually be applied under Network Management territory and the situation that control domain does not overlap; Such as in Fig. 3, when the user hopes to specify B1 and C2 to be a TCM pairing, can be configured at the intermediate node B1 or the C2 point in source node or path; Information after the configuration also can mail to downstream node with signaling; And B1 and C2 can carry out the TCM configuration according to this information, and for the node in the TCM of appointment information not, the process of configuration TCM information is identical with the description in the foregoing description.For C1 among Fig. 3 and B2 node,, then be configured according to specified message if also be designated as a TCM pairing; If do not specify, then dispose automatically, because management domain does not overlap with control domain; Therefore the possibility of result of configuration is to realize configuration, also might become a pair of with other node configuration, for example; C1 is not the boundary node of control domain, and then this node is not that TCM enables some configuration failure; And other boundary node of B2 and place control domain has been made into a pair of or the like.Above-mentioned control domain is meant ASON (AutomaticallySwitched Optical Network; ASON) field or GMPLS (Generalized Multi-Protocol LabelSwitching; GMPLS) control domain in the field; Cut apart through E-NNI (logicalExternal Network-Network Interface, the not interface of network between the same area and network) between the different control domains, professional connection may be passed the Different control territory; The division principle of control domain is general identical with the division principle of management domain; Under control domain and situation that management domain overlaps, the embodiment of the invention through the road construction signaling automatically the boundary node in territory be set to TCM and enable a little, under the situation that control domain and management domain not exclusively overlap; The embodiment of the invention can enable dot information through the TCM that shows appointment according to the user, carries the relevant configuration of carrying out TCM thereby these TCM are enabled dot information through the signaling that business connects foundation.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.Known at source node under the situation of topology information and TE information of whole network; Determine all TCM through source node and enable dot information and all TCM unpaired messages, make the TCM in the network enable a little can accomplish relevant TCM information configuration according to the information that source node is determined.
Embodiment 2
The difference of present embodiment and embodiment 1 is the source node that connects according to the TE information of the boundary node in the connectivity in the topology information of having known this territory (being the territory at source node place) and TE information and other all territories and other all territories, calculates strictness demonstration route and the loose demonstration route (Loose Explicit Route) in other territories this territory in; And according to this strictness demonstration route and loose demonstration route, all TCM that determine in the connection enable dot information and all TCM unpaired messages.Wherein, the loose demonstration route in the embodiment of the invention is meant that the Ingress node in territory in the route and Egress node confirm, and intermediate node wherein is uncertain, promptly can allow only to provide a section among the LSP.After source node is determined TCM information; The node (comprising intermediate node and boundary node) that connects process carries out corresponding road construction process and TCM information configuration process; And the user carries out the process of TCM configuration when specifying TCM information, and is all identical with embodiment 1, repeats no more here.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.Known at source node under the situation of TE information of boundary node in connectivity and other territories in topology information and TE information and other territories in territory, place; Determine all TCM through source node and enable dot information and all TCM unpaired messages, make the TCM in the network enable a little can accomplish relevant TCM information configuration according to the information that source node is determined.
Embodiment 3
The source node that connects in the present embodiment is the node in the network; And this source node has been known the topology information in this territory and the Egress node information in this territory, and the boundary node that connects each territory of process goes out corresponding routing iinformation according to topology information and the TE information calculations known respectively.Referring to Fig. 4, the embodiment of the invention also provides a kind of method of configuring tandem-connection monitoring information, specifically comprises:
401: in the process that connects, the source node in this connection is according to the topology information in this territory of having known and the Egress node information in this territory, and the strictness that calculates in this territory shows route.
402: source node shows route and this known territory Egress node information according to the strictness that calculates, determines TCM information, and what this TCM information comprised this territory enables dot information and TCM unpaired message.
Source node comprises Ingress node and Egress node with the boundary node in this territory in the present embodiment, confirms as enabling a little of TCM, and this Ingress node and Egress node confirmed as belongs to same TCM rank, promptly matches.
403: source node sends the signaling that connects according to existing road construction flow process, and source node also carries the above-mentioned TCM information of determining in this signaling.
The TCM information that source node is determined in the present embodiment is delivered to this purpose of connecting node along the signaling that connects always in the whole process that connects, all can comprise this TCM information in the signaling that connects that each node in promptly connecting is received.
404: after a node in the above-mentioned connection is received the signaling that connects of carrying TCM information, judge according to the TCM information in the signaling whether oneself is that TCM enables a little, if then dispose local TCM information.This node comprises intermediate node and boundary node, and this node is specially boundary node in the present embodiment.
Wherein, When next jumping of source node is this boundary node; Then the signaling received of this boundary node is the signaling that source node sends, and when also having intermediate node between source node and this boundary node, then the signaling received of this boundary node is different with the signaling of source node transmission.
When boundary node was the Ingress node in territory, place, the process of the TCM information that above-mentioned boundary node configuration is local was specific as follows: configuration enables the TCM function to Ingress node in this locality, and disposes local TCM rank; Ingress node is according to the Ingress node of having known and the topology information and the TE information of the overall network between the above-mentioned purpose of connecting node then; Calculate the strictness demonstration route of this Ingress node, and the TCM that determines all territories between this Ingress node and the destination node according to this strictness demonstration route enables dot information and TCM unpaired message to destination node.
When the Ingress node of boundary node for the territory, place; And when not knowing topology information and the TE information of the overall network between this Ingress node and the above-mentioned purpose of connecting node; The process of the TCM information that above-mentioned boundary node configuration is local is specific as follows: configuration enables the TCM function to Ingress node in this locality, and the local TCM rank of configuration; The strictness that Ingress node calculates territory, this Ingress node place shows the Egress node information in route and this territory, and shows that according to this strictness route and Egress node information determines the TCM in this territory and enable dot information and TCM unpaired message.
When the Egress node of boundary node for the territory, place; And when the TCM that has carried this territory, Egress node place in the signaling of receiving enables the TCM class information of Ingress node in dot information and TCM unpaired message and this territory; The process of the TCM information that above-mentioned boundary node configuration is local is specific as follows: Egress node enables dot information according to the TCM in this territory, Egress node place of carrying in the signaling of receiving; Configuration enables the TCM function in this locality; And according to the TCM class information of the Ingress node in the TCM unpaired message in the territory, this Egress node place of carrying in the signaling of receiving and this territory, the TCM rank that configuration is local.
Further, said method also comprises:
405: boundary node sends the signaling that connects, and in the signaling of this transmission, carries the part or all of TCM information in the signaling of receiving in 404.The signaling that boundary node sends is the signaling after the signaling of receiving is upgraded.
Further, boundary node can also carry or not carry the TCM information of this locality that has disposed according to the pre-configured strategy in this locality in the signaling of sending.
Which information boundary node carries in the present embodiment in the signaling of sending, and comprises part or all of TCM information and local TCM information in the signaling of receiving or the like, and detailed process repeats no more with the description among the embodiment 1 here.
Further; When boundary node is the Ingress node in territory, place; If this Ingress node has been known the topology information and the TE information of the overall network between this Ingress node and the above-mentioned purpose of connecting node, then boundary node also carries this Ingress node of oneself determining and the TCM in all territories between the destination node enables dot information and TCM unpaired message in the signaling of sending; If this Ingress node is not known the topology information and the TE information of the overall network between this Ingress node and the above-mentioned purpose of connecting node, then the boundary node TCM that in the signaling of sending, also carries this territory, Ingress node place of oneself determining enables dot information and TCM unpaired message.
Similarly; Each TCM that connects process enables a little after local TCM information is accomplished in configuration, all can the TCM information of this locality to be added in the signaling that connects, and carries out the configuration of TCM information with convenient follow-up node; Particularly; The means of signaling that can adopt expansion to connect is added local TCM information, with the description among the embodiment 1.When signaling arrives destination node; Destination node is added TCM configure-ack information in the signaling of returning; So that whether notice upstream node TCM configuration is successful, when the process that connects finished, all TCM in the connection enabled a little also correspondingly to have accomplished the configuration of TCM information.
Still be that example specifies below, suppose that B1, C1 and B3 all do not know the topology information and the TE information of whole network with Fig. 3.When source node A1 set up a connection of arriving destination node A2, A1 can know that according to the topology information in the territory of having known 1 and the information of Egress node A2 the route in territory 1 can arrive A2; From the territory 1 can arrive territory 2 boundary node B1, in A1 node configuration TCM1 rank, A1 sends signaling and gives B1 then; This moment carries A1 in the signaling and A2 is that a TCM is right, and after B1 received signaling, calculating B1 and B2 was that a TCM is right; The Egress node in territory 2 is B2, and dispose B1 this moment is the TCM2 rank, with the TCM pairing of A1, A2; The TCM pairing of B1, B2, and A1:TCM1, B1:TCM2 information is carried at and continues to pass to C1 in the signaling; C1 receives configuration TCM3 rank after the signaling, and to calculate it be a TCM pairing with C2, sends signaling then to C2; Be configured to the rank TCM3 identical with C1 after C2 receives, and calculate the B2 node that can arrive territory 2 from C2, C2 arrives the B2 node after upgrading signaling message; B2 can know that according to all TCM information of carrying in the signaling B2 node and B1 node are that a TCM is right, disposes the TCM rank of B2 and the consistent TCM2 of being of rank of B1 this moment; The rest may be inferred, and signaling is proceeded the configuration of TCM at B3, B4, A2, thereby accomplish the configuration of A1 TCM information of all territory boundary nodes in the road construction process of A2.
In the present embodiment, when the user specified TCM information, the process of the boundary node configuration TCM information that connects repeated no more with the description among the embodiment 1 here.
In the present embodiment, source node is the node in the network, and according to the topology information in the territory of having known, source node place and the Egress node information in this territory, the strictness that calculates in the territory, source node place shows route by source node.Like the PE1 node among Fig. 1 is source node, has known topology information and the Egress node ABR1 information of Area1, and then PE1 calculates strictness demonstration route: PE1-＞P-＞ABR1 of Area1.And in the practical application; Also there is other a kind of situation; Source node is the node of user side; And known the topology information in the territory adjacent with source node and the Egress node information in this territory, only be that with the difference of present embodiment the route calculation process in the territory adjacent with source node is different in this case, promptly this source node can calculate the strictness demonstration route in the territory adjacent with source node.Like the CE1 node among Fig. 1 is source node, has known topology information and the Egress node ABR1 information of Area1, and then CE1 calculates strictness demonstration route: PE1-＞P-＞ABR1 of Area1.And the route in other territories except that the territory adjacent with source node calculate all with present embodiment in description identical, it is also identical with present embodiment that all TCM enable a process that disposes TCM information, so repeat no more.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.Known at source node under the situation of Egress node information in topology information and this territory in territory, place; The TCM that determines the territory, place through source node enables dot information and TCM unpaired message; And boundary node determine the territory, place or and destination node between the TCM in all territories enable dot information and TCM unpaired message, make the TCM in the network enable a little can accomplish relevant TCM information configuration.
Embodiment 4
Referring to Fig. 5, the embodiment of the invention also provides a kind of node, specifically comprises:
Receiver module is used for the process that connects in business, receives the signaling that connects of carrying TCM information;
Configuration module is used for after receiver module is received the signaling of setting up above-mentioned connection, judges according to the TCM information in the signaling whether said node is that TCM enables a little, if then dispose local TCM information.
Wherein, configuration module can specifically comprise:
Judging unit is used for after receiver module is received the signaling that connects, and judges according to the TCM information in the signaling whether said node is that TCM enables a little;
Enable dispensing unit, being used for when judgment unit judges goes out said node is a TCM when enabling, and the TCM that carries in the signaling of receiving according to receiver module enables dot information, and configuration enables the TCM function in this locality;
The rank dispensing unit, being used for when judgment unit judges goes out said node is that TCM is when enabling, if above-mentioned node is the Ingress node in territory, place, the TCM rank that configuration is local; If above-mentioned node is the Egress node in territory, place, the TCM class information of the Ingress node in the TCM unpaired message that carries in the signaling of receiving according to receiver module and the territory, above-mentioned node place of carrying, the TCM rank that configuration is local.
Further, node shown in Figure 5 also comprises:
First computing module; Be used for when above-mentioned node is the Ingress node in territory, place; According to topology information of having known and traffic engineering information; The TCM that determines all territories between Ingress node and the destination node enables dot information and TCM unpaired message, and the TCM that perhaps determines territory, Ingress node place enables dot information and TCM unpaired message; Particularly; Can be according to the topology information and the traffic engineering information of the overall network between Ingress node of having known and the purpose of connecting node; The strictness that calculates from the Ingress node to the destination node shows route, and the TCM that determines all territories between Ingress node and the destination node according to this strictness demonstration route enables dot information and TCM unpaired message; In addition; When Ingress node is not known topology information and the traffic engineering information of the overall network between this Ingress node and the purpose of connecting node; The strictness that also can calculate territory, Ingress node place shows the Egress node information in route and this territory, and shows that according to this strictness route and Egress node information determines the TCM that Ingress node belongs to the territory and enable dot information and TCM unpaired message;
Second computing module; Be used for when above-mentioned node is the Egress node in territory, place; The TCM in the territory, Egress node place of carrying in the signaling of receiving according to receiver module enables dot information; Enable the TCM function in this locality configuration, and according to the TCM class information of the Ingress node in the TCM unpaired message in the territory, Egress node place of carrying in the signaling of receiving and this territory of carrying, the TCM rank that configuration is local.
In addition, configuration module can also specifically comprise:
First judging unit is used for after receiver module is received signaling, and whether decision node is that the TCM of user's appointment enables a little;
First dispensing unit, be used for when the first judgment unit judges egress be a TCM of user's appointment when enabling, according to the TCM information of user's appointment, the TCM information that configuration is local;
Second judging unit, be used for when the first judgment unit judges egress be not a TCM of user's appointment when enabling, whether the TCM information decision node in the signaling of receiving according to receiver module is that TCM enables a little;
Second dispensing unit, be used for when the second judgment unit judges egress be a TCM when enabling, the TCM information that configuration is local.
Further, node shown in Figure 5 also comprises:
Sending module is used to send the signaling that connects, and in the signaling of sending, carries the part or all of TCM information in the signaling that receiver module receives; According to the pre-configured strategy of above-mentioned node, in the signaling of sending, carry or do not carry the TCM information of this locality of configuration module configures.If above-mentioned node comprises first computing module; Then the sending module TCM that also is used for carrying in the signaling of sending all territories that first computing module obtains enables dot information and TCM unpaired message, perhaps carries the TCM that Ingress node that first computing module obtains belongs to the territory and enables dot information and TCM unpaired message.
Node in the present embodiment comprise connect the boundary node and the intermediate node in territory of process.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.
Embodiment 5
Referring to Fig. 6, the embodiment of the invention also provides a kind of node, specifically comprises:
Computing module is used for determining picks up relevant information of TCM according to topology information and the traffic engineering information known;
Sending module is used to send the signaling of setting up above-mentioned connection, and in signaling, carries the TCM information that computing module is determined.This node is specially and sets up the professional source node that connects in the present embodiment.
Wherein, computing module specifically comprises:
Computing unit is used for calculating corresponding demonstration route according to topology information and the traffic engineering information known;
Confirm the unit, be used for the demonstration route that calculates according to computing unit, all TCM that determine in the connection enable dot information and all TCM unpaired messages; The information of demonstration route that perhaps calculates according to computing unit and the Egress node of having known, the TCM that determines territory, Egress node place enables dot information and TCM unpaired message.
Particularly, computing unit can be according to the topology information and the traffic engineering information of the whole network of having known, and the strictness that calculates from source node to the purpose of connecting node shows route; Confirm that the unit shows route according to the strictness that computing unit calculates, all TCM that determine in the connection enable dot information and all TCM unpaired messages.
Perhaps computing unit is according to the topology information and the traffic engineering information in the territory at the source node place of having known; And the traffic engineering information of the boundary node in the connectivity in other territories and other territories, calculate the loose demonstration route that strictness in the territory, source node place shows route and other territories; Confirm that the unit shows route and loose demonstration route according to the strictness that computing unit calculates, all TCM that determine in the connection enable dot information and all TCM unpaired messages.
Perhaps computing unit is according to the topology information in the territory of having known, source node place and the Egress node information in this territory, and the strictness that calculates in this territory shows route; Confirm that the unit shows route and Egress node information according to the strictness that computing unit calculates, the TCM that determines territory, source node place enables dot information and TCM unpaired message; At this moment, above-mentioned node is the node in the network.
Perhaps computing unit is according to the topology information in the territory of having known adjacent with source node and the Egress node information in this territory, and the strictness that calculates in this territory shows route; Confirm that the unit shows route and Egress node information according to the strictness that computing unit calculates, the TCM that determines the territory adjacent with source node enables dot information and TCM unpaired message; At this moment, above-mentioned node is the node of user side.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.Node can be determined picks up relevant information of TCM according to topology information and the TE information known, and sends the node in downstream to through the signaling that connects, and can make the TCM in the network enable a little can accomplish relevant TCM information configuration.
Embodiment 6
Referring to Fig. 7, the embodiment of the invention also provides a kind of system of configuring tandem-connection monitoring information, specifically comprises:
First node is used for determining picks up relevant information of TCM according to topology information and the traffic engineering information known; Also be used for downstream and send the signaling of setting up professional connection, and in this signaling, carry TCM information;
Section Point is used to receive the signaling of setting up above-mentioned connection of the TCM information of carrying that updrift side sends, and judges according to the TCM information in this signaling whether oneself is that TCM enables a little, if, the local TCM information of configuration then.
In the present embodiment, first node is the source node that connects, and Section Point is meant other arbitrary node except that source node in the connection of foundation, comprises intermediate node and destination node.
Further; Section Point can also be used to send the signaling that connects; And in the signaling of this transmission, carry the part or all of TCM information in the signaling of receiving; In addition, can also be used for, in the signaling of sending, carry or do not carry the TCM information of this locality that has disposed according to the pre-configured strategy in this locality.Wherein, the signaling of transmission is the signaling to the signaling update of receiving.First node is the upper reaches in the present embodiment, and this purpose of connecting node is downstream.
Wherein, first node possibly directly link to each other with Section Point, and then the signaling of first node transmission is the signaling that Section Point receives; When also having other nodes between first node and the Section Point; The signaling that signaling that first node sends and Section Point receive is inequality; At this moment, the signaling received of Section Point is the signaling that connects that the node that links to each other with Section Point on the updrift side is sent.
Present embodiment has realized carrying out automatically the configuration of TCM information, compares with the method for existing employing webmaster manual configuration, has greatly improved the flexibility of configuration TCM information; The complexity that has reduced configuration and handled; And utilize the existing signaling that connects, and simple and convenient, realize easily.
Calculating the work of route in the technical scheme that above-mentioned all embodiment provide is accomplished by the boundary node in the territory of source node that connects or connection process; This mode can also be replaced by following mode: by PCE (Path Computation Element; Path-calculating element) carrying out route calculates; According to actual conditions, PCE can be deployed on the boundary node in source node or territory, also can be deployed on the independent equipment; But also can in a plurality of territories, dispose different PCE respectively, accomplish the route calculation function respectively.
The embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, for example, and in the hard disk of router, buffer memory or the CD.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for a configuring tandem-connection monitoring information is characterized in that, said method comprises:
Connect in the process of setting up in business, source node is determined picks up relevant information of TCM according to topology information and the traffic engineering information known, and said source node sends the signaling that connects, and in the signaling of said transmission, carries the said TCM information of determining;
Node receives the signaling of setting up said connection of carrying Tandem Connection Monitor TCM information, and said TCM information comprises that TCM enables dot information and TCM unpaired message;
Said node judges according to said TCM information whether this node is that TCM enables a little, if then dispose local TCM information.
2. the method for configuring tandem-connection monitoring information according to claim 1 is characterized in that, after the TCM information of said configuration this locality, also comprises:
Said node sends and sets up the signaling of said connection, and in the signaling of said transmission, carries the part or all of TCM information in the signaling of said reception;
According to the pre-configured strategy of said node, in the signaling of said transmission, carry or do not carry the TCM information of said this locality.
3. the method for configuring tandem-connection monitoring information according to claim 1 is characterized in that, the TCM information that said source node is determined is specially:
All TCM in the said connection enable dot information and all TCM unpaired messages;
Or the TCM in territory, said source node place enables dot information and TCM unpaired message;
Or the TCM in the territory adjacent with said source node enables dot information and TCM unpaired message.
4. the method for configuring tandem-connection monitoring information according to claim 3 is characterized in that, when the TCM that determines territory, place or adjacent territory when said source node enabled dot information and TCM unpaired message, the TCM information of said configuration this locality specifically comprised:
Configuration enables the TCM function in this locality, and the local TCM rank of configuration;
According to topology information of having known and traffic engineering information; The TCM that determines all territories between this node and the said purpose of connecting node enables dot information and TCM unpaired message, and the TCM that perhaps determines territory, this node place enables dot information and TCM unpaired message.
5. the method for configuring tandem-connection monitoring information according to claim 1 is characterized in that, the local TCM information of said configuration specifically comprises:
The TCM that carries in the signaling according to said reception enables dot information, and configuration enables the TCM function in this locality;
When this node is the Ingress node in territory, place, the TCM rank that configuration is local;
When this node during, according to the TCM class information of the Ingress node in the TCM unpaired message that carries in the said signaling of receiving and the said territory of carrying, the TCM rank that configuration is local for the Egress node in territory, place.
6. the method for configuring tandem-connection monitoring information according to claim 1 is characterized in that, said node judges according to said TCM information whether this node is that TCM enables a little, if, then dispose local TCM information, be specially:
Said node judges that whether this node is that the TCM of user's appointment enables a little, if, then local TCM information according to the TCM information configuration of said user's appointment; Otherwise, judge according to the TCM information in the said signaling of receiving whether this node is that TCM enables a little, if then dispose local TCM information.
7. a node is characterized in that, said node comprises:
Sending module is used to send the signaling that connects, and in the signaling of said transmission, carries TCM information; According to the pre-configured strategy of said node, in the signaling of said transmission, carry or do not carry the TCM information of this locality of said configuration module configures;
Receiver module is used for connecting the process of setting up in business, receives the signaling of setting up said connection of carrying TCM information, and said TCM information comprises that TCM enables dot information and TCM unpaired message;
Configuration module is used for after said receiver module is received said signaling, judges according to said TCM information whether said node is that TCM enables a little, if then dispose local TCM information.
8. node according to claim 7 is characterized in that, said configuration module specifically comprises:
Judging unit is used for after said receiver module is received said signaling, judges according to the TCM information in the said signaling whether said node is that TCM enables a little;
Enable dispensing unit, being used for when said judgment unit judges goes out said node is a TCM when enabling, and the TCM that carries in the said signaling of receiving according to said receiver module enables dot information, and configuration enables the TCM function in this locality;
The rank dispensing unit, being used for when said judgment unit judges goes out said node is that TCM is when enabling, if said node is the Ingress node in territory, place, the TCM rank that configuration is local; If said node is the Egress node in territory, place, according to the TCM class information of the Ingress node in the TCM unpaired message that carries in the said signaling and the said territory of carrying, the TCM rank that configuration is local.
9. node according to claim 7 is characterized in that, said configuration module specifically comprises:
First judging unit is used for after said receiver module is received said signaling, judges that whether said node is that the TCM of user's appointment enables a little;
First dispensing unit, being used for when said first judgment unit judges goes out said node is a TCM of said user's appointment when enabling, according to the TCM information of said user's appointment, the TCM information that configuration is local;
Second judging unit, being used for when said first judgment unit judges goes out said node is not a TCM of said user's appointment when enabling, the TCM information in the signaling of receiving according to said receiver module judges whether said node is that TCM enables a little;
Second dispensing unit, being used for when said second judgment unit judges goes out said node is a TCM when enabling, the TCM information that configuration is local.
10. the system of a configuring tandem-connection monitoring information is characterized in that, said system comprises:
First node is used for determining picks up relevant information of TCM according to topology information and the traffic engineering information known; Also be used for downstream and send the signaling of setting up professional connection, and in said signaling, carry said TCM information, said TCM information comprises that TCM enables dot information and TCM unpaired message;
Section Point is used to receive the signaling of setting up said connection of the TCM information of carrying that updrift side sends, and judges according to said TCM information whether this node is that TCM enables a little, if, the local TCM information of configuration then.
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| CN101136700A (en) * | 2006-09-01 | 2008-03-05 | 华为技术有限公司 | Method for performing series connection monitoring distribution configuration |
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| CN101136700A (en) * | 2006-09-01 | 2008-03-05 | 华为技术有限公司 | Method for performing series connection monitoring distribution configuration |
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