CN108650177A - The method and system of cross-domain service configuration are carried out to SPTN equipment - Google Patents
The method and system of cross-domain service configuration are carried out to SPTN equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
- H04L45/507—Label distribution
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Abstract
The invention discloses a kind of method and system carrying out cross-domain service configuration to SPTN equipment, are related to the management domain of telecommunication transmission net.This approach includes the following steps：Acquire this domain topology information, inquire reachable path between this domain inner boundary network element, obtain boundary network element it is available enter label；Combine cross-domain label switched path LSP routings；The cross-domain LSP service configuration that SPTN equipment is carried out for input condition is route with cross-domain LSP；Inquire this domain boundary network element available free VCID；Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, the cross-domain virtual circuit and ELine business of SPTN equipment are configured.The present invention can support the cross-domain service of SPTN equipment to configure.
Description
Technical field
The present invention relates to the management domain of telecommunication transmission net, it is specifically related to a kind of carrying out cross-domain service to SPTN equipment and match
The method and system set.
Background technology
With the fast development of telecommunication service, the sharp increase of number of users and QoS requirements improve rapidly, and
Application type is enriched constantly, and network architecture is increasingly sophisticated, bearing function constantly extends, and corresponding management and control ability day is decrescence
Weak, present network architecture has shown slightly drawback.It is carried on the back in the trend of Hardware standardization, device software, telecommunication network ITization
Under scape, SDN (Software Defined Network, software defined network) has become emerging internet operator, tradition electricity
Believe operator and the common focus of attention of equipment supplier.With the universal of SDN concepts and ripe, by its in Practical Project at
Work(is on probation, it has also become the target realized currently is badly in need of in operator and equipment vendor.
In SDN applications, cross-domain (Cross Domain) business configuration is an extremely universal and important application scenarios,
Domain (Domain) refers to the network range of some controller (Controller) management, is the network management range of logical partitioning,
The range size of the controller management of different levels is different, and top level control device includes the range of lower layer's controller management, and can
Obtain the overall network topology of lower layer controller, such as node and link information etc., the controller management of the bottom actual
Physical equipment and even fine information.Cross-domain service refers to the business in the equipment room configuration in not same area, in practical applications, logical
Often by the same area, the physical equipment of same producer is divided into a domain, thus cross-domain service be typically not same area not
It is configured between plant equipment.
In the existing net engineering of current operator, the transmission device main force is traditional PTN (Packet Transport
Network, group transmission network) equipment, (Software defined Packet Transport Network, software are fixed by SPTN
Adopted group transmission network) it is the PTN device that software definition is carried out to traditional PTN.Under existing network architectural framework, no matter equipment
Or webmaster (Network Management System in telecommunication apparatus), can not all support the cross-domain service of SPTN equipment to configure, reason is：
(1) the cross-domain service configuration of SPTN equipment needs to be managed collectively the equipment of not same area different manufacturers, and mesh
It is communicated by privately owned interface between the webmaster and equipment of Qian Ge producers, the shape that the management data and equipment that webmaster issues report
State data follow the proprietary protocol defined inside producer, which is simply possible to use in the equipment and network management communication of same producer, because
This can not manage the equipment of other producers production.Under existing situation, it is desirable to be formulated between each producer and promote a set of mark
The southbound interface that accurate webmaster is interacted with equipment, it is difficult, and run in the opposite direction with current network architecture development trend, it obtains not
Repay mistake.
(2) the cross-domain service configuration of SPTN equipment needs to divide the range of management of not same area, in each domain management
The physical resource in portion, and engineering does not have the concept in domain at present, if divided by equipment manufacturer, by same producer's webmaster management
Armamentarium is divided into a domain, and this division seems too simple rough, can not embody the layering logic layers management advantage in domain.
(3) the cross-domain service configuration of SPTN equipment needs the physical resource between domain to be managed, the physical resource between domain
Company's fibre and the port information between not same area edge device are referred mainly to, even fine information is mainly used for configuring LSP the port between domain
Route searching when (Label Switched Path, label switched path), and the webmaster in a domain can not obtain in existing engineering
Know company's fibre port information in adjacent domains connected to it, therefore the cross-domain service of SPTN equipment can not be supported to configure.
Invention content
The purpose of the invention is to overcome the shortcomings of above-mentioned background technology, provide a kind of to the cross-domain industry of SPTN equipment progress
The method and system of business configuration, can support the cross-domain service of SPTN equipment to configure.
The present invention provides a kind of method carrying out cross-domain service configuration to SPTN equipment, includes the following steps：
A, the requirement for acquiring this domain topology information issued according to upper layer domain controller, obtains all physical topologies in this domain
Information；According to upper layer domain controller issue inquire this domain inner boundary network element between reachable path pathfinding condition, obtain in this domain
One or more optional path for meeting pathfinding condition can use mark as intra-area routes, and for each network element distribution in path
Label；Inquiry this domain boundary network element issued according to upper layer domain controller is dispensed into the demand of label, and it is available to obtain boundary network element
Enter label；
B, according to intra-area routes and boundary network element it is available enter label, combination cross-domain label switched path LSP routing；With across
LSP routings in domain are input condition, carry out the cross-domain LSP service configuration of SPTN equipment；
C, the available idle virtual circuit of this domain boundary network element of inquiry issued according to upper layer domain controller identifies VCID's
Demand obtains the available free time VCID of this domain boundary network element；
D, the requirement of the configuration point to point service, PTP ELine issued according to upper layer domain controller, with the LSP service of configuration successful
As service layer the cross-domain virtual circuit and ELine industry of SPTN equipment are configured using the available free time VCID of this domain boundary network element
Business.
Based on the above technical solution, in step A, the physical topology information includes all physical NE information
With even fine information, the physical NE information includes the geographical coordinate and the frame of network element, slot, disk information of network element, described even fine
Information includes connecting the physical port information at optical fiber both ends；Up to the pathfinding condition of routing including most between the domain inner boundary network element
Short path, smallest link cost, load balancing.
Based on the above technical solution, step B specifically includes following steps：
The intra-area routes refer to the routing between the Network-Node Interface NNI of boundary network element, and inter-domain routing refers to from side
Routing of boundary's network element to adjacent outer domain network element；Inter-domain routing includes cross-domain port and cross-domain label, and cross-domain port is domain inner boundary
The exit port of network element, it is determined that the data packet that this domain boundary network element is sent out reaches the inbound port of outer domain network element from which port,
Cross-domain port is specified by user, cross-domain label using boundary network element it is available enter label；Intra-area routes and inter-domain routing are combined,
Complete cross-domain LSP routings are formed, are route as input condition with cross-domain LSP, configuration generates the cross-domain LSP industry of a SPTN equipment
Business.
Based on the above technical solution, further comprising the steps of in step C：The available VCID of this domain boundary network element is
One or more range intervals with foreign lands boundary network element can use the negotiation of VCID for upper layer domain controller, in this domain and
In the available VCID ranges of foreign lands boundary network element, common available VCID, the condition as configuration virtual circuit are found out.
Based on the above technical solution, step D specifically includes following steps：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN is configured
The sourcesink network element of the cross-domain virtual circuit of equipment, cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, the User-Network Interface UNI port information issued according to upper layer domain controller,
Carry out the cross-domain ELine business configurations of SPTN equipment, the sourcesink of the sourcesink network element and its service layer's virtual circuit of cross-domain ELine business
Network element is consistent.
The present invention also provides a kind of systems carrying out cross-domain service configuration to SPTN equipment, including：
Physical topology information acquisition unit, is used for：This domain topology information of acquisition issued according to upper layer domain controller is wanted
It asks, obtains all physical topology information in this domain；
Intra-area routes acquiring unit, is used for：It is reachable between inquiry this domain inner boundary network element issued according to upper layer domain controller
The pathfinding condition in path obtains one or more optional path for meeting pathfinding condition in this domain, as intra-area routes, and is road
Each network element in diameter distributes available label；
Enter label acquiring unit, is used for：This domain boundary network element of the inquiry issued according to upper layer domain controller is dispensed into label
Demand, obtain boundary network element it is available enter label；
LSP service dispensing unit, is used for：Enter label according to intra-area routes and boundary network element, combines cross-domain Tag switching
Path LSP is route；The cross-domain LSP service configuration that SPTN equipment is carried out for input condition is route with cross-domain LSP；
Idle VCID acquiring units, are used for：Inquiry this available sky of domain boundary network element issued according to upper layer domain controller
The demand of the mark VCID of not busy virtual circuit, obtains the available free time VCID of boundary network element；
ELine business configuration units, are used for：The configuration point to point service, PTP ELine's issued according to upper layer domain controller wants
It asks, using the LSP service of configuration successful as service layer, using idle VCID, configures the cross-domain virtual circuit and ELine of SPTN equipment
Business.
Based on the above technical solution, the physical topology information includes all physical NE information and even fine letter
Breath, the physical NE information includes the geographical coordinate and the frame of network element, slot, disk information of network element, and the even fine information includes
Connect the physical port information at optical fiber both ends；Between the domain inner boundary network element up to routing pathfinding condition include shortest path,
Smallest link cost, load balancing.
Based on the above technical solution, the intra-area routes refer to boundary network element Network-Node Interface NNI between
Routing, inter-domain routing refers to the routing from boundary network element to adjacent outer domain network element；Inter-domain routing includes cross-domain port and cross-domain
Label, cross-domain port are the exit ports of domain inner boundary network element, it is determined that the data packet that this domain boundary network element is sent out is from which end
Mouthful reach the inbound port of outer domain network element, cross-domain port is specified by user, cross-domain label using boundary network element it is available enter label；Institute
It states LSP service dispensing unit to combine intra-area routes and inter-domain routing, forms complete cross-domain LSP routings, route with cross-domain LSP
For input condition, configuration generates the cross-domain LSP service of a SPTN equipment.
Based on the above technical solution, the available free time VCID of this domain boundary network element is one or more ranges
Section, with foreign lands boundary network element can use the negotiation of VCID for upper layer domain controller, and the free time VCID acquiring units exist
In the available VCID ranges of this domain and foreign lands boundary network element, common available VCID, the condition as configuration virtual circuit are found out.
Based on the above technical solution, the ELine business configurations unit is specifically used for：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN is configured
The sourcesink network element of the cross-domain virtual circuit of equipment, cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, the User-Network Interface UNI port information issued according to upper layer domain controller,
Carry out the cross-domain ELine business configurations of SPTN equipment, the sourcesink of the sourcesink network element and its service layer's virtual circuit of cross-domain ELine business
Network element is consistent.
Compared with prior art, advantages of the present invention is as follows：
The present invention sets up a general cross-domain service allocation models, and the Physical Network in other domains is replaced using Virtual NE
Member can support cross-domain service configuration of the SPTN equipment not between same area.The present invention passes through the cross-domain service configuration to SPTN equipment
Demand is analyzed, and is decomposed to SPTN equipment cross-domain service configuration flows, and a set of complete feasible cross-domain industry is made
Business configuration flow specification, while unified cross-domain service model is designed, support the business between not same area devices from different manufacturers
Configuration improves the versatility of SPTN equipment cross-domain services configuration, is that the upgrading of existing network system and the popularization of SDN frameworks have
There is important practice significance.
Description of the drawings
Fig. 1 is the flow chart for the method for carrying out cross-domain service configuration in the embodiment of the present invention to SPTN equipment.
Fig. 2 is the distribution schematic diagram of network element label in boundary in the embodiment of the present invention.
Fig. 3 is the schematic diagram of reachable path between the network element of region of search boundary in the embodiment of the present invention.
Fig. 4 is the schematic diagram of cross-domain LSP routings in the embodiment of the present invention.
Fig. 5 is the cross-domain schematic diagram of a scenario of source.
Fig. 6 is the cross-domain schematic diagram of a scenario of egress.
Fig. 7 is the cross-domain schematic diagram of a scenario of sourcesink.
Fig. 8 is the schematic diagram of a scenario for protecting place cross-domain.
Fig. 9 is the cross-domain schematic diagram of a scenario in protection source.
Figure 10 is the schematic diagram of a scenario for protecting sourcesink cross-domain.
Figure 11 is the interval diagram that VCID ranges can be used in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Embodiment 1
Shown in Figure 1, the embodiment of the present invention provides a kind of method carrying out cross-domain service configuration to SPTN equipment, including
Following steps：
A, the requirement for acquiring this domain topology information issued according to upper layer domain controller, obtains all physical topologies in this domain
Information；According to upper layer domain controller issue inquire this domain inner boundary network element between reachable path pathfinding condition, obtain in this domain
One or more optional path for meeting pathfinding condition can use mark as intra-area routes, and for each network element distribution in path
Label；Inquiry this domain boundary network element issued according to upper layer domain controller is dispensed into the demand of label, and it is available to obtain boundary network element
Enter label；
B, according to intra-area routes and boundary network element it is available enter label, be combined into complete cross-domain LSP (Label
Switched Path, label switched path) routing；It is route as input condition with cross-domain LSP, carries out the stringent road of SPTN equipment
By cross-domain LSP service configuration；
C, the available free time VCID (Virtual of this domain boundary network element of inquiry issued according to upper layer domain controller
Circuit Identification, the mark of virtual circuit) demand, obtain the available free time VCID of this domain boundary network element；
D, the requirement of the configuration point to point service, PTP ELine issued according to upper layer domain controller, with the LSP service of configuration successful
As service layer the cross-domain VC (Virtual of SPTN equipment are configured using the available free time VCID of this domain boundary network element
Circuit, virtual circuit) and ELine business.E-Line business, i.e. point to point service, PTP refer to that there are two UNI (User- by client
Network Interface, user network side interface) access point is the relationship of two-way intercommunication each other.E-Line is to be based on
L2VPN (the Virtual Private of MPLS (Multi-Protocol Label Switching, multiprotocol label switching)
Network, Virtual Private Network) business.
Physical topology information includes all physical NE information and even fine information, and physical NE information includes the ground of network element
Coordinate and the frame of network element, slot, disk information are managed, even fine information includes connecting the physical port information at optical fiber both ends.
The topology information collection in this domain is the unique channel for the physical topology details that upper layer domain controller obtains in this domain, is adopted
The information of collection passes through Corba (Common Object Request Broker Architecture, Common Object Request Broker
Architecture) interface, it is reported with data structure form, physical topology includes nodal information and link information, nodal information
Specific details ginseng is shown in Table 1, and the specific details ginseng of link information is shown in Table 2.
Table 1, nodal information
| Attribute | It explains |
| Node ID | The unique mark of the topology node object, is identified with UUID |
| Node coordinate | The X and Y coordinates of node identify description position of the node in topology |
| IP address | The node physical equipment management IP address |
| Equipment vendors | Physical equipment production firm representated by the node object |
| Nodename | The nodename |
| Software version | Physical device controller software version representated by the node object |
| Operating status | Physical equipment operating status representated by the node object |
| Machine frame | Machine frame information contained by the node physical equipment |
| Single-deck | Single-deck information contained by the node physical equipment |
| Port | The node physical device ports information |
Table 2, link information
| Attribute | It explains |
| Link ID | The unique mark of the link objects, is identified with UUID |
| Link name | The link objects title |
| Link rate | The link objects rate bandwidth |
| Link direction | The nodename connects direction |
| Operating status | The link objects operating status |
| Left end network element | The left end network element being connect with the link objects |
| Left end port | The left end network element port being connect with the link objects |
| Right end network element | The right end network element being connect with the link objects |
| Right end port | The right end network element port being connect with the link objects |
| Chain-circuit time delay | Link objects delay attribute |
| The reserved bandwidth of maximum | The link objects maximum available bandwidth attribute |
Include but not limited to up to the pathfinding condition routeing between the inner boundary network element of domain：Shortest path, is born smallest link cost
Carry equilibrium etc., when reachable path there are many may when, mulitpath need to be returned to, for configure with the LSP protected；According to constraint item
When part carries out pathfinding, while the network element label along road is distributed, but network element label resources insufficient path reachable for path, depending on
It is unreachable.
When being route between the domain controller inquiry field inner boundary network element of upper layer, several querying conditions, necessary parameter can be inputted
It is total to road limitation for right boundary NE ID, the link rate of request, path role (work or protection), work Protection path, it can
It is the pathfinding strategy in path to select parameter, and pathfinding strategy includes two aspects of basic pathfinding strategy and route restriction condition, is sought substantially
Road strategy specifies the entirety requirement to path, such as：Shortest path, smallest link cost, load balancing etc., route restriction pair
Each in routing is made that limitation, such as：It is required that path has to pass through special network element, port or must avoid ad hoc networks
Member, port.
This domain is an opposite concept, shown in Figure 2, when domain 1 is this domain, enters label and is distributed by network element a,
When domain 2 is this domain, enters label and distributed by network element b.
According to above-mentioned path query condition and strategy domain side is searched out using the Shortest Path Searching Algorithm of breadth First
Meet the path of condition between boundary's network element.
Shown in Figure 3, shortest path can distinguish return path (a, b) between inquiry field 1 boundary network element a, b and a, d,
(a, d), shortest path can distinguish return path (e, g), (f, g) between inquiry field 2 boundary network element e, f and g, f.The path of return
Include distributing label along road network member.
Inquiry field boundary network element it is available enter label, for outer domain network element intercommunication, the available label quantity of inquiry according to
It needs be one or more.The label resources of network element are managed in webmaster, when inquiring available label, from label
The minimum value of range starts, and until maximum value, judges whether tag state can be used successively, and record available label value.When
When the available label quantity of lookup reaches requested number, label is reported to upper layer domain controller.
Network element distribution of this domain boundary be into label, for the outer domain network element direct-connected with the boundary network element, the label
For its outgoing label.It is into label for the label that network element in domain is inquired, label is distributed based on network element, need to ensure same network element
Enter that label is unique, and the outgoing label of network element does not have uniqueness requirement, to different cross-domain LSP, can use identical bid
Label.This is because when the boundary network element in two different domains is connected with the same outer domain network element, it is assumed that two boundary network elements
Distribution enters that label is identical, then for the connected same overseas network element, its outgoing label must be the same.
Embodiment 2
On the basis of embodiment 1, step B specifically includes following steps：
It refers to the NNI of boundary network element that configuring cross-domain LSP, which needs specific intra-area routes and inter-domain routing, intra-area routes,
Routing between (Network to Network Interface, Network-Node Interface), inter-domain routing refer to from boundary network element
To the routing of adjacent outer domain network element.
Reachable routing in domain may have a plurality of, be specifically chosen which item is specified by user.Reachable path refers to side in domain
Routing between boundary's network element NNI interfaces, but a complete cross-domain LSP include not only intra-area routes, also need the roads configuration Yu Jian
By.
Inter-domain routing includes cross-domain port and cross-domain label, and cross-domain port is the exit port of domain inner boundary network element, it is determined that
The data packet that this domain boundary network element is sent out reaches the inbound port of outer domain network element from which port, and cross-domain port is specified by user,
Cross-domain label using boundary network element it is available enter label.Cross-domain port and label determine the routing of network element between domain.
Intra-area routes and inter-domain routing are combined, complete cross-domain LSP routings is formed, is input item with cross-domain LSP routings
Part, configuration generate the cross-domain LSP service of a SPTN equipment.
Shown in Figure 4, domain 1 and domain 2 are two different domains, and for domain 1, intra-area routes are NE_a (NNI1) --
NE_b (NNI2), network element a (Network-Node Interface 1), it is NE_b (NNI3) -- NE_c that label, which uses domain interior label, cross-domain routing,
(NNI4), by after this two sections routing combinations, that is, complete cross-domain LSP routings is formed, are route according to complete cross-domain LSP, you can
Configuration generates the cross-domain LSP service of SPTN equipment.
When configuration generates the cross-domain LSP service of SPTN equipment, necessary resource ID is distributed for the network element in this domain, such as
TunnelId (Tunnel Identification, Tunnel Identifier), LSP Index (LSP indexes), port bandwidth, OAM ID
(OAM object identities) etc., overseas network element is replaced with Virtual NE, and the LSP resources of Virtual NE are divided in its corresponding field webmaster
Match, this domain is not processed.
When carrying out cross-domain LSP service configuration, according to the difference of overseas network element place status, it can be subdivided into following scene, joined
It is shown in Table 3.
Table 3, cross-domain scene
According to table 3：The cross-domain scene of source is shown in Figure 5, and the cross-domain scene of egress is shown in Figure 6, sourcesink across
The scene in domain is shown in Figure 7, and Fig. 8 is that the cross-domain scene in protection place is shown in Figure 8, and the cross-domain scene in protection source is referring to Fig. 9
Shown, the cross-domain scene of protection sourcesink is shown in Figure 10.
Embodiment 3
It is further comprising the steps of in step C on the basis of embodiment 1：
The available VCID of this domain boundary network element is one or more range intervals, for upper layer domain controller and foreign lands boundary
Network element can use the negotiation of VCID, in the available VCID ranges of this domain and foreign lands boundary network element, finds out common available
VCID, the condition as configuration virtual circuit.
Intercommunications of the idle VCID for VC circuits between domain, querying method can use sky with inquiry in the step A of embodiment 1
Not busy label is similar, also uses the ascending method for judging idle state successively of ID values.
It is with what inquiry tag was distinguished：Available VCID needs disposable acquisition entire set, due to available ID quantity one
As it is larger, can not all enumerate, therefore result is indicated with range intervals, it is shown in Figure 11, it is assumed that can use VCID value area
Between be 1 to 999999, the ID for being 1,2,3,5 in certain network element intermediate value has been used, then query result is expressed as [4,4], [6,
999999]。
Embodiment 4
On the basis of embodiment 1, step D specifically includes following steps：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN is configured
The sourcesink network element of the cross-domain virtual circuit of equipment, cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, UNI (the User Network that are issued according to upper layer domain controller
Interface, User Network Interface) port information, carry out the cross-domain ELine business configurations of SPTN equipment, cross-domain ELine business
Sourcesink network element it is consistent with the sourcesink network element of its service layer's virtual circuit.
If any of which step fails, configuration process stops.
It, can be with configuring cross-domain ELine on the basis of success configuring cross-domain LSP service, and acquisition available free VCID
Business.
The configuration of cross-domain ELine business includes two parts：
One, cross-domain VC circuit configurations；
Two, cross-domain ELine business configurations.
Idle VCID is a range intervals, needs the negotiation for overseas connection network element can use VCID, the mistake of negotiation
Cheng Wei：It can be traversed from a certain network element to maximum value with the minimum value in the sections VCID, to each VCID in outer domain network element
Available section in searched, if finding identical VCID, both sides use the VCID to carry out cross-domain VC configurations.
Using the cross-domain LSP service of configuration successful as service layer, using with overseas network element available VCID jointly, as defeated
Enter condition, carry out cross-domain VC circuit configurations, the sourcesink network element of cross-domain VC circuits is consistent with the sourcesink network element of its service layer LSP.
When configuration generates cross-domain VC circuits, necessary resource ID is distributed for the network element in this domain, such as：PW(Pseudo
Wire, pseudo-wire) label, PW indexes, port bandwidth, OAM ID etc., overseas network element is replaced with Virtual NE, the VC of Virtual NE
Resource is distributed in its corresponding field webmaster, this domain is not processed.
When configuration generates cross-domain ELine, necessary resource ID is distributed for the network element in this domain, such as：VPWS
(Virtual Pseudo Wire Service, virtual pseudo wires business) index, VPLS (Virtual Private LAN
Service, Virtual Private LAN Service) it indexes, port bandwidth, overseas network element is replaced with Virtual NE, Virtual NE
Resource is distributed in its corresponding field webmaster, this domain is not processed.
Embodiment 5
The embodiment of the present invention provides a kind of system carrying out cross-domain service configuration to SPTN equipment, including：
Physical topology information acquisition unit, is used for：This domain topology information of acquisition issued according to upper layer domain controller is wanted
It asks, obtains all physical topology information in this domain；
Intra-area routes acquiring unit, is used for：It is reachable between inquiry this domain inner boundary network element issued according to upper layer domain controller
The pathfinding condition in path obtains one or more optional path for meeting pathfinding condition in this domain, as intra-area routes, and is road
Each network element in diameter distributes available label；
Enter label acquiring unit, is used for：This domain boundary network element of the inquiry issued according to upper layer domain controller is dispensed into label
Demand, obtain boundary network element it is available enter label；
LSP service dispensing unit, is used for：Enter label according to intra-area routes and boundary network element, combines cross-domain Tag switching
Path LSP is route；The cross-domain LSP service configuration that SPTN equipment is carried out for input condition is route with cross-domain LSP；
Idle VCID acquiring units, are used for：Inquiry this domain boundary network element available free issued according to upper layer domain controller
The demand of the mark VCID of virtual circuit, obtains the available free time VCID of boundary network element；
ELine business configuration units, are used for：The configuration point to point service, PTP ELine's issued according to upper layer domain controller wants
It asks, using the LSP service of configuration successful as service layer, using idle VCID, configures the cross-domain virtual circuit and ELine of SPTN equipment
Business.
Physical topology information includes all physical NE information and even fine information, and the physical NE information includes network element
Geographical coordinate and the frame of network element, slot, disk information, the even fine information includes connecting the physical port information at optical fiber both ends；
Pathfinding condition between the domain inner boundary network element up to routing includes shortest path, smallest link cost, load balancing.
Embodiment 6
On the basis of embodiment 5, intra-area routes refer to the routing between the Network-Node Interface NNI of boundary network element, domain
Between routing refer to routing from boundary network element to adjacent outer domain network element；Inter-domain routing includes cross-domain port and cross-domain label, cross-domain
Port is the exit port of domain inner boundary network element, it is determined that the data packet that this domain boundary network element is sent out reaches foreign lands from which port
The inbound port of network element, cross-domain port are specified by user, cross-domain label using boundary network element it is available enter label；The LSP service
Dispensing unit combines intra-area routes and inter-domain routing, forms complete cross-domain LSP routings, is input item with cross-domain LSP routings
Part, configuration generate the cross-domain LSP service of a SPTN equipment.
Embodiment 7
On the basis of embodiment 5, the available free time VCID of this domain boundary network element is one or more range intervals, is used for
Upper layer domain controller with foreign lands boundary network element can use the negotiation of VCID, and the free time VCID acquiring units are in this domain and foreign lands
In the available VCID ranges of boundary network element, common available VCID, the condition as configuration virtual circuit are found out.
Embodiment 8
On the basis of embodiment 5, ELine business configuration units are specifically used for：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN is configured
The sourcesink network element of the cross-domain virtual circuit of equipment, cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, the User-Network Interface UNI port information issued according to upper layer domain controller,
Carry out the cross-domain ELine business configurations of SPTN equipment, the sourcesink of the sourcesink network element and its service layer's virtual circuit of cross-domain ELine business
Network element is consistent.
Those skilled in the art can be carry out various modifications to the embodiment of the present invention and modification, if these modifications and change
For type within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention
Within.
The prior art that the content not being described in detail in specification is known to the skilled person.
Claims (10)
1. a kind of method carrying out cross-domain service configuration to SPTN equipment, which is characterized in that include the following steps：
A, the requirement for acquiring this domain topology information issued according to upper layer domain controller obtains all physical topology letters in this domain
Breath；The pathfinding condition for inquiring reachable path between this domain inner boundary network element issued according to upper layer domain controller, obtains in this domain full
One or more optional path of sufficient pathfinding condition distributes available label as intra-area routes, and for each network element in path；
Inquiry this domain boundary network element issued according to upper layer domain controller is dispensed into the demand of label, obtain boundary network element it is available enters mark
Label；
B, according to intra-area routes and boundary network element it is available enter label, combination cross-domain label switched path LSP routing；With cross-domain
LSP routings are input condition, carry out the cross-domain LSP service configuration of SPTN equipment；
C, the demand of the mark VCID for inquiring the available idle virtual circuit of this domain boundary network element issued according to upper layer domain controller,
Obtain the available free time VCID of this domain boundary network element；
D, the requirement of the configuration point to point service, PTP ELine issued according to upper layer domain controller, using the LSP service of configuration successful as
Service layer configures the cross-domain virtual circuit and ELine business of SPTN equipment using the available free time VCID of this domain boundary network element.
2. the method for carrying out cross-domain service configuration to SPTN equipment as described in claim 1, it is characterised in that：In step A, institute
Physical NE information and even fine information that physical topology information includes all are stated, the physical NE information includes the geography of network element
The frame of coordinate and network element, slot, disk information, the even fine information includes connecting the physical port information at optical fiber both ends；The domain
Pathfinding condition between inner boundary network element up to routing includes shortest path, smallest link cost, load balancing.
3. the method for carrying out cross-domain service configuration to SPTN equipment as described in claim 1, it is characterised in that：Step B is specific
Include the following steps：
The intra-area routes refer to the routing between the Network-Node Interface NNI of boundary network element, and inter-domain routing refers to from boundary net
Member arrives the routing of adjacent outer domain network element；Inter-domain routing includes cross-domain port and cross-domain label, and cross-domain port is domain inner boundary network element
Exit port, it is determined that the data packet that this domain boundary network element is sent out reaches the inbound port of outer domain network element from which port, cross-domain
Port is specified by user, cross-domain label using boundary network element it is available enter label；Intra-area routes and inter-domain routing are combined, are formed
Complete cross-domain LSP routings, are route with cross-domain LSP as input condition, configuration generates the cross-domain LSP service of a SPTN equipment.
4. the method for carrying out cross-domain service configuration to SPTN equipment as described in claim 1, it is characterised in that：In step C also
Include the following steps：The available VCID of this domain boundary network element is one or more range intervals, for upper layer domain controller and outside
Domain boundary network element can be found out and jointly may be used in the available VCID ranges of this domain and foreign lands boundary network element with the negotiation of VCID
VCID, the condition as configuration virtual circuit.
5. the method for carrying out cross-domain service configuration to SPTN equipment as described in claim 1, it is characterised in that：Step D is specific
Include the following steps：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN equipment is configured
Cross-domain virtual circuit, the sourcesink network element of cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, the User-Network Interface UNI port information issued according to upper layer domain controller carries out
The cross-domain ELine business configurations of SPTN equipment, the sourcesink network element of cross-domain ELine business and the sourcesink network element of its service layer's virtual circuit
Unanimously.
6. a kind of system carrying out cross-domain service configuration to SPTN equipment, which is characterized in that including：
Physical topology information acquisition unit, is used for：The requirement for acquiring this domain topology information issued according to upper layer domain controller, is obtained
Take the physical topology information that this domain is all；
Intra-area routes acquiring unit, is used for：Reachable path between inquiry this domain inner boundary network element issued according to upper layer domain controller
Pathfinding condition, one or more optional path for meeting pathfinding condition in this domain is obtained, as intra-area routes, and in path
Each network element distribute available label；
Enter label acquiring unit, is used for：Inquiry this domain boundary network element issued according to upper layer domain controller is dispensed into the need of label
Ask, obtain boundary network element it is available enter label；
LSP service dispensing unit, is used for：According to the label that enters of intra-area routes and boundary network element, cross-domain label switched path is combined
LSP is route；The cross-domain LSP service configuration that SPTN equipment is carried out for input condition is route with cross-domain LSP；
Idle VCID acquiring units, are used for：The available idle void of this domain boundary network element of inquiry issued according to upper layer domain controller
The demand of the mark VCID of circuit, obtains the available free time VCID of boundary network element；
ELine business configuration units, are used for：The requirement for configuring point to point service, PTP ELine issued according to upper layer domain controller, with
The LSP service of configuration successful configures the cross-domain virtual circuit and ELine business of SPTN equipment as service layer using idle VCID.
7. the system for carrying out cross-domain service configuration to SPTN equipment as claimed in claim 6, it is characterised in that：The physics is opened up
Plain information includes all physical NE information and even fine information, and the physical NE information includes the geographical coordinate of network element, with
And the frame of network element, slot, disk information, the even fine information includes connecting the physical port information at optical fiber both ends；The domain inner boundary
Pathfinding condition between network element up to routing includes shortest path, smallest link cost, load balancing.
8. the system for carrying out cross-domain service configuration to SPTN equipment as claimed in claim 6, it is characterised in that：The roads Yu Nei
By refer to boundary network element Network-Node Interface NNI between routing, inter-domain routing refers to from boundary network element to adjacent foreign lands net
The routing of member；Inter-domain routing includes cross-domain port and cross-domain label, and cross-domain port is the exit port of domain inner boundary network element, it is determined that
The data packet that this domain boundary network element is sent out reaches the inbound port of outer domain network element from which port, and cross-domain port is specified by user,
Cross-domain label using boundary network element it is available enter label；The LSP service dispensing unit combines intra-area routes and inter-domain routing,
Complete cross-domain LSP routings are formed, are route as input condition with cross-domain LSP, configuration generates the cross-domain LSP industry of a SPTN equipment
Business.
9. the system for carrying out cross-domain service configuration to SPTN equipment as claimed in claim 6, it is characterised in that：This described domain side
Network element available free time VCID in boundary's is one or more range intervals, can for upper layer domain controller and the progress of foreign lands boundary network element
With the negotiation of VCID, the free time VCID acquiring units are found out altogether in the available VCID ranges of this domain and foreign lands boundary network element
With available VCID, the condition as configuration virtual circuit.
10. the system for carrying out cross-domain service configuration to SPTN equipment as claimed in claim 6, it is characterised in that：The ELine
Business configuration unit is specifically used for：
Using the LSP service of configuration successful as service layer, using the available free time VCID of this domain boundary network element, SPTN equipment is configured
Cross-domain virtual circuit, the sourcesink network element of cross-domain virtual circuit is consistent with the sourcesink network element of its service layer's LSP service；
Using cross-domain virtual circuit as service layer, the User-Network Interface UNI port information issued according to upper layer domain controller carries out
The cross-domain ELine business configurations of SPTN equipment, the sourcesink network element of cross-domain ELine business and the sourcesink network element of its service layer's virtual circuit
Unanimously.
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