CN102318293B - Method, advice and system of establishing LSP - Google Patents
Method, advice and system of establishing LSP Download PDFInfo
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- CN102318293B CN102318293B CN201180001549.7A CN201180001549A CN102318293B CN 102318293 B CN102318293 B CN 102318293B CN 201180001549 A CN201180001549 A CN 201180001549A CN 102318293 B CN102318293 B CN 102318293B
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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
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
- H04L47/724—Admission control; Resource allocation using reservation actions during connection setup at intermediate nodes, e.g. resource reservation protocol [RSVP]
Abstract
The embodiment of the invention provides a method, advice and system of establishing LSP, referring to the technical field of communication. The method comprises: performing LMP negotiation with a light source network by a source data communication device; obtaining address information of the source data communication device and installing a route between the light source network according to the address information of the source data communication device; sending an resource reservation protocol RSVP message to the light source network according to the route between the light source network, wherein the RSVP message comprises bandwidth information and address information of a lodge data communication device, the light source network device calculates the LSP to the data communication device according to the bandwidth information and address information of the lodge data communication device so as to establish LSP between the source data communication device and the lodge data communication device.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method, apparatus and system of setting up label switched path.
Background technology
Along with 3G(3rd-Generation, 3G (Third Generation) Moblie), the continuous expansion of packet network, band data business, a kind ofly can automatically complete the New Network Technique that label switched path sets up-GMPLS(Generalized Multi-Protocol Label Switching, the exchange of general multiple protocols label) arise at the historic moment.In the network of GMPLS, comprise data communications equipment and optical network device, source data communication equipment and place data communications equipment are undertaken interconnected by optical network device, the source data communication equipment can, according to service needed, initiate to create a label switched path that arrives the place data communications equipment by the GMPLS signaling.
At present, in the GMPLS network, wherein a kind of model of data communication and optical network device intercommunication is that Overlay(covers) model, the Overlay model is called again GMPLS UNI(User-Network Interface, User Network Interface) model.Under the Overlay model, RSVP(Resource Reservation Protocol, RSVP) signaling message has two kinds of send modes: 1, user's static configuration signaling message outgoing interface, generally need the incoming interface address of the incoming interface of outgoing interface address, source optical network device incoming interface and outgoing interface address, place optical network device of assigned source data communications equipment and outgoing interface address, place data communications equipment, then send according to the outgoing interface of appointment; 2, by the configuring static route, according to the outgoing interface of route, sent.
For dynamic LMP(Link Management Protocol, LMP Link Manager Protocol), connected device address is Dynamic Discovery, the keeper of source data communication equipment and place data communications equipment, from the keeper of source optical network device and place optical network device, may be different, the keeper of both sides' equipment may not know the other side's address in advance like this, therefore by the mode of specifying outgoing interface or configuring static route, sends signaling message and experiences all bad to the user; In addition, if opposite equip. has changed address, if static configuration needs local device also to change the destination address of static routing, because often belonging to two departments, data communications equipment and light net equipment safeguards, if two interdepartmental coordinations are more difficult, strengthened the difficulty of network O&M.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of method, apparatus and system of setting up label switched path.
On the one hand, provide a kind of method of setting up label switched path, described method comprises:
Source data communication equipment and source optical network device carry out the LMP negotiation, and study is to the address information of described source optical network device, and according to the address information of described source optical network device, install and described source optical network device between route;
According to and described source optical network device between route, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make described source optical network device calculate according to the address information of described bandwidth information and described place data communications equipment the label switched path that arrives described place data communications equipment, thereby set up described label switched path between described source data communication equipment and described place data communications equipment;
Described source data communication equipment and described source optical network device carry out the LMP negotiation, and study, to the address information of described source optical network device, comprising:
Described source data communication equipment and described source optical network device are set up control channel;
By the control channel with the foundation of described source optical network device, receive the first configuration message that described source optical network device sends, the address information of in described the first configuration message, carrying described source optical network device;
Learn the address information of described source optical network device according to described the first configuration message.
On the other hand, provide a kind of source data communication equipment, described equipment comprises:
Installation module, for the source optical network device, carrying out the LMP negotiation, study is to the address information of described source optical network device, and according to the address information of described source optical network device, install and described source optical network device between route;
Sending module, for the indication of the route between basis and described source optical network device, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make described source optical network device calculate according to the address information of described bandwidth information and described place data communications equipment the label switched path that arrives described place data communications equipment, thereby set up described label switched path between described source data communication equipment and described place data communications equipment;
Described installation module comprises:
Set up unit, for described source optical network device, setting up control channel;
Receiving element, receive the first configuration message that described source optical network device sends, the address information of in described the first configuration message, carrying described source optical network device for the control channel by with the foundation of described source optical network device;
Unit, for learning the address information of described source optical network device according to described the first configuration message.
On the other hand, provide a provenance optical network device, described equipment comprises:
Installation module, for the source data communication equipment, carrying out the link management protocol LMP negotiation, study is to the address information of described source data communication equipment, and according to the address information of described source data communication equipment, install and described source data communication equipment between route;
Receiver module, the RSVP RSVP message sent for receiving described source data communication equipment, described RSVP message is that the route between described source data communication equipment basis and described source light net equipment sends to described source optical network device, and carries the address information of bandwidth information and place data communications equipment in described RSVP message;
Computing module, calculate the label switched path that arrives described place data communications equipment for the address information according to described bandwidth information and described place data communications equipment, thereby set up described label switched path between described source data communication equipment and described place data communications equipment.
On the other hand, also provide a kind of system of setting up label switched path, described system comprises: source data communication equipment as above and source as above optical network device.
The beneficial effect of the technical scheme that the embodiment of the present invention provides is: source/place data communications equipment and source/place optical network device is by LMP agreement study opposite equip. address, the main frame route that arrives opposite equip. is installed, thereby when setting up label switched path, the source data communication equipment is the outgoing interface address to corresponding source optical network device according to this main frame route querying, by this outgoing interface, signaling message is sent to the source optical network device, the source optical network device of making can automatically calculate and arrive the logical device path of place data communication, thereby greatly reduce network O&M personnel's configuration effort, facilitate network design.
The accompanying drawing explanation
Fig. 1 is a kind of flow process of setting up the method for label switched path that the embodiment of the present invention provides;
Fig. 2 is a kind of flow process of setting up the method for label switched path that another embodiment of the present invention provides;
Fig. 3 is a kind of data transmission network model that another embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of source data communication equipment of providing of another embodiment of the present invention;
Fig. 5 is the structural representation of the another kind of source data communication equipment that provides of another embodiment of the present invention;
Fig. 6 is the structural representation of the provenance optical network device that provides of another embodiment of the present invention;
Fig. 7 is a kind of schematic diagram of setting up the system of label switched path that another embodiment of the present invention provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Referring to Fig. 1, the embodiment of the present invention provides a kind of method of setting up label switched path, comprising:
101: source data communication equipment and source optical network device carry out the link management protocol LMP negotiation, study is to the address information of described source optical network device, and the address information of the described source optical network device arrived according to study, the route between installation and described source optical network device;
102: according to and described source optical network device between route, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make described source optical network device calculate according to the address information of described bandwidth information and place data communications equipment the label switched path that arrives described place data communications equipment, thereby set up described label switched path between source data communication equipment and place data communications equipment.
In the described method of setting up label switched path that the present embodiment provides, the source data communication equipment can be set up route with a source optical network device, also can set up reason with a plurality of sources optical network device, and the present embodiment is not specifically limited this.
Wherein, source data communication equipment and described source optical network device carry out the link management protocol LMP negotiation, and study, to the address information of LMP Link Manager Protocol source optical network device, comprising:
Source data communication equipment and described source optical network device are set up control channel;
Receive the first configuration message that described source optical network device sends, the address information of in described the first configuration message, carrying described source optical network device by described control channel;
Learn the address information of described source optical network device according to described the first configuration message.
Further, in the described method of setting up label switched path that the present embodiment provides, when described control channel interface is the broadcast type interface, for example, during ether interface, the next hop address of in described the first configuration message, carrying described source optical network device, the next hop address of described source optical network device is used to indicate the incoming interface address on the source optical network device of the control channel of setting up between described source data communication equipment and described source optical network device.
Further, the described method of setting up label switched path that the present embodiment provides can also comprise:
Described source data communication equipment is by the described control channel with the foundation of described source optical network device, send the second configuration message to described source optical network device, carry the address information of described source data communication equipment in described the second configuration message, thereby make described source optical network device learn the address information of described source data communication equipment.
Further, the described method of setting up label switched path that the present embodiment provides can also comprise:
After described source optical network device receives the address information of described source data communication equipment, the address information of described source data communication equipment is broadcast to the optical-fiber network at optical network device place, described source, makes other optical network devices in optical-fiber network also can know the address information of described source data communication equipment.For example, for source optical network device or place optical network device, the other side's who learns by LMP address information and port address, bandwidth information can be incorporated into light net interior routing protocol, be diffused into whole light net by light net interior routing protocol, the optical network device in optical-fiber network just may learn the route of arrival data communications equipment and connected data link bandwidth information like this.
Wherein, when described control channel interface is the broadcast type interface, for example, during ether interface, the second configuration message carries the next hop address of source data communication equipment, the source data communication equipment that the next hop address of described source data communication equipment is used to indicate and source light net equipment between the outgoing interface address of source data communication equipment of control channel.
The beneficial effect of the technical scheme that the embodiment of the present invention provides is: source/place data communications equipment and source/place light net equipment is by LMP agreement study opposite equip. address, the main frame route that arrives opposite equip. is installed, thereby when setting up label switched path, the source data communication equipment is the outgoing interface address to corresponding source optical network device according to this main frame route querying, by this outgoing interface, signaling message is sent to the source optical network device, the source optical network device of making can calculate the path that arrives the place data communications equipment automatically, thereby greatly reduce network O&M personnel's configuration effort, facilitate network design.
Referring to Fig. 2, the embodiment of the present invention provides a kind of method of setting up label switched path, comprising:
201: source data communication equipment and source optical network device carry out the LMP protocol negotiation by GMPLS control channel, obtain respectively the other side's address information, described source data communication equipment is according to the address information of described source optical network device, install and described source optical network device between route.
In the present embodiment, source node and destination node are data communications equipment, intermediate node is optical network device, in whole transmission network, the optical network device adjacent with source data communication equipment (hereinafter to be referred as source C) is called to source optical network device (hereinafter to be referred as source N), the optical network device adjacent with place data communications equipment (hereinafter to be referred as place C) is called to place optical network device (hereinafter to be referred as place N).The transmission network model for example provided referring to Fig. 3, comprise source C100, source N200, optical transport network, place N400 and place C500, wherein need between source C100 and place C500, set up label switched path, between source N200 and place N400, is optical transport network.
In the present embodiment, before setting up label switched path, between source C100 and source N200, and, place N400 and and place C500 between all install to arrive the other side's main frame route, route as source data communication equipment installation arrival source optical network device, the source optical network device is installed the route that arrives the source data communication equipment, the place data communications equipment is installed the route that reaches the place optical network device, and the place optical network device is installed the route that arrives the place data communications equipment.Wherein, can also comprise other optical network devices except described source N200 and place N400 in optical transport network, the source data communication equipment also can be connected with a plurality of sources optical network device, and the source data communication equipment can select different individual source optical network device equipment to set up label switched path.
In the present embodiment, can carry out link management protocol LMP (Link Management Protocol) between source data communication equipment and source optical network device consults, to obtain the address information of opposite equip., for example the LSR of opposite equip. identifies LSRID(Label Switching Router Identity).The LMP agreement is used for to control channel CC(Control channel) with data link, manage with associated, wherein, CC is exactly GMPLS control channel, concrete can be passage in band or out of band, in-band channel refers to the data message of control message and transmission in the Same Physical passage, out-band channel refers to controls message and data message in different physical channels, such as data message sends at ether interface 1, controls message and sends at ether interface 2.The link management protocol LMP effect specifically comprises: 1. automatic discovery and the maintenance of control channel; 2. verification msg connectivity of link; 3. the link identification Link_ID of associate traffic engineering TE Link two end nodes, interface identifier InterfaceID mapping relations, the TE parameter of checking synchronous TE Link two end nodes, as bandwidth, interface exchange capacity etc., and the incidence relation of flow engineering link and data link; 4. data link fault management ability.
In the present embodiment, after between source data communication equipment and source optical network device, introducing the LMP agreement, at first the source data communication equipment passes through the LMP agreement with the source optical network device, set up control channel between them, source data communication equipment and source optical network device send mutually the config(configuration by control channel again) message, wherein, can carry the LSRID(Label Switching Router Identity of local terminal in the config message), thus may learn the LSRID address of opposite end by the config message interaction.In the present embodiment, source C receives the config message that at least one source optical network device sends, the address information of in a config message, carrying the source optical network device by control channel; Learn the address information of source optical network device according to a config message.
Further, the source data communication equipment also can send the 2nd config message to the source optical network device by CC, the address information of in the 2nd config message, carrying the source data communication equipment, the source optical network device of making is learnt the address information of described source data communication equipment.
In the present embodiment, place N and place C carry out the LMP negotiation too, and detailed process is the same with the negotiations process of above-mentioned source C and source N, and the present embodiment repeats no more this.
In the present embodiment, in LMP protocol negotiation up(success) afterwards, source data communication equipment and source optical network device trigger automatically installs the main frame route that arrives opposite end LSRID, and the outgoing interface of route is this control channel interface.
Further in the present embodiment, if the control channel interface is the broadcast type interface, such as ether interface, need to specify next hop address, this next hop address is exactly the address, opposite end of control channel interface, the source IP address of the config message of receiving exactly, wherein, for source C, be the incoming interface address of source N, for source N, it is the outgoing interface address of source C.Concrete, when source N is ether interface, the next hop address of in a config message, carrying source N, the next hop address of source N is used to indicate the incoming interface address of the source N of CC between source C and source light N; When source C is ether interface, the next hop address that the 2nd config message carries source C, the next hop address of source C is used to indicate the outgoing interface address of the source C of CC between source C and source N.
Further, in the present embodiment, source N and place N not only install the main frame route, but also this address is incorporated into to OSPF(Open Shortest Path First, SPF) in, be published to inner each node of optical-fiber network.For example, for optical-fiber network source N or place N equipment, the opposite end LSRID learnt by LMP and TELINK address, bandwidth information can be incorporated into optical-fiber network interior routing protocol OSPF-TE, by the OSPF-TE message dissemination to whole optical-fiber network, so every optical network device can learn to arrive data communications equipment route and connected data link bandwidth information.
202: the route between source data communication equipment basis and source optical network device sends RSVP message to the source optical network device.
In the present embodiment, after the source data communication equipment is received the instruction of setting up label switched path, send RSVP message to the source optical network device, carry the bandwidth information of data link and the address information of the logical equipment of place data in this RSVP message, described RSVP message is PATH message.
Further, in the present embodiment, if there is a plurality of sources optical network device, source data communication equipment and source optical-fiber network network equipment room can be set up many control channels, when the main frame route is installed, if it is the same that the LMP agreement all is arranged to the route priority of all control channels, this route-pattern is the load balancing mode; If the route priority of certain CC passage is improved, this route-pattern is active/standby mode.If form the load balancing route, the RSVP message packet can the mode with load balancing send many control channels; If form active and standby route, the RSVP message packet is concentrated on certain control channel and sends.
In the present embodiment, when source C creates GMPLS UNI LSP, only need to be to data communications equipment address, place and the bandwidth information of source C specify creation UNI LSP, this bandwidth information is the bandwidth information that needs the label forwarding path of foundation, does not need to specify to show paths.Because source C equipment can know by the LMP agreement which optical network device that has oneself be connected, for example the LSRID address of the connected optical network device of source C equipment is followed successively by LSRID1, LSRID2 ... until LSRIDM, wherein M means M source optical network device, so the address of the optical network device that source C can be known according to oneself is initiatively connected to source N, wherein, if there are many control channels, and when many control channels are active and standby route-pattern, source C can first in priority, high control channel sends RSVP message, if many control channels are modes of load balancing route, source C can be on many control channels transmission RSVP message one by one.For example, in the present embodiment, source C and source optical network device LSRID1, LSRID2 ... until be the mode of load balancing between LSRIDM, C equipment in source is after the instruction that obtains the establishing label switching path, at first attempt sending RSVP message message to source optical network device LSRID1, for instance, source C is according to the address of source optical network device LSRID1, if searching the outgoing interface of route is control channel CC1, the local address of CC1 (the outgoing interface address of CC on the C of source) and far-end address (the incoming interface address of CC on the N1 of source) are filled in to the object ERO(Explicit Route Object that shows paths in PATH message) in, then message is sent to source, opposite end optical network device LSRID1, for creating UNI LSP.
203: source optical network communication equipment calculates according to the address information of the bandwidth information of carrying in RSVP message and place data communications equipment the label switched path that arrives the place data communications equipment, thereby sets up label switched path between source data communication equipment and place data communications equipment.
In the present embodiment, after source N receives the PATH message of source C transmission, according to C address, place and bandwidth information, SPF CSPF(Constrained Shortest Path First by Constraint-based) agreement is calculated the label switched path of optical-fiber network inside automatically, after having calculated path, by carrying the information indication intermediate node that shows paths in signaling message, processed, to set up the label switched path between source C and place C.
For instance, referring to Fig. 3, if calculating, source N200 passes through the path that optical-fiber network arrives place C500, the incoming interface address of CC1 on the N200 of source that ERO in the PATH message that at first source N200 sends over according to source C100 carries, find corresponding incoming interface, in this incoming interface bandwidth resource, then in local outgoing interface distributing labels, to set up forward LSP interconnection list item, the ERO of PATH message is replaced with to the routing information that local CSPF calculates, being about to local address (the outgoing interface address of source N200) fills in ERO with far-end address (the incoming interface address of the downstream optical network device be connected with source N200), then described PATH message is sent to the downstream optical network device, after this downstream optical network device is received the PATH message that the source N200 of upstream sends over, according to ERO information at the incoming interface bandwidth reserved, in the outgoing interface distributing labels, set up forward LSP interconnection list item, PATH message is continued to send to Shang downstream, the path optical network device calculated, after the optical network device of the centre in optical transport network and place N400 receive PATH message, repeat the handling process of the above-mentioned intermediate light network equipment, place N400 finally sends to place C500 by PATH message, place C500 is in the incoming interface bandwidth resource, the forward of setting up local LSP connects list item, thereby create a forward LSP from place C500 to source C100 that passes through optical transport network.Place C500 is after handling PATH message, respond RESV message to place N400, and in the incoming interface bandwidth resource of place C500, in the outgoing interface distributing labels, set up reverse LSP and connect list item, after place N400 receives RESV message, in the incoming interface bandwidth resource, in the outgoing interface distributing labels, set up reverse LSP and connect list item, then RESV message is continued upstream to optical network device and send, to the last RESV message arrives source C100, thus create one pass through optical transport network from source C100 to the reverse LSP of place C500.For instance, in the present embodiment, if source light net equipment LSRID1 does not arrive the path of place C500, source light net equipment LSRID1 responds PATH ERR message to source C100, source C100 can reattempt to other source optical network devices and send PATH message, other source optical network devices that receive PATH message perform step 202 and 203 again, and this enforcement does not repeat them here.
Further, in the present embodiment, if the user knows the UNI LSP that arrives place C500 is through which source optical network device, can, in the address that shows paths middle increase source optical network device, reduce source C100 equipment for attempting the time of setting up.For example, if the user knows while creating certain strip label switching path, need to be through source optical network device N200, can be in the address information of middle increase source optical network device N200 that shows paths, the source C100 of making can be directly according to the address information of source N200, with source, optical network device N200 connects, thereby avoids source C100 in the route with the installation of a plurality of sources optical network device, and the trial of going one by one connects.
In the present embodiment, the CC passage can be mode in band or out of band, and will be with interior CC passage abstract is an interface, and when like this route being installed, the outgoing interface of route can be interface in band or out of band.In addition, the above-mentioned idiographic flow of setting up LSP, be a kind of mode that realizes setting up LSP, do not require that all systems all like this.Wherein, forward LSP outgoing label and oppositely LSP enter label can be identical; Forward LSP enters label and oppositely the LSP outgoing label can be identical.This present embodiment is not specifically limited.
The beneficial effect of embodiment of the method provided by the invention is: source/place data communications equipment and source/place optical network device is by LMP agreement study opposite equip. address, the main frame route that arrives opposite equip. is installed, thereby when setting up label switched path, RSVP message source data communications equipment is the outgoing interface address information to corresponding source optical network device according to this main frame route querying, by this outgoing interface, signaling message is sent to source light net equipment.Wherein, the other side's that source optical network device and place optical network device equipment need to will be learnt by the LMP agreement address, be incorporated into self OSPF or intermediate system ISIS(intermidiate system intermediate system) etc. in Routing Protocol, be flooded to the optical transport network territory, the source optical network device is received the RSVP message message that the source data communication equipment sends over, and can automatically calculate the path that arrives the place data communications equipment according to the CSPF algorithm.
Referring to Fig. 4, embodiment of the present invention embodiment provides a kind of source data communication equipment 100, comprising: installation module 100a and sending module 100b.
Sending module 100b, for the route between basis and described source optical network device, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make the source optical network device calculate according to the address information of described bandwidth information and place data communications equipment the label switched path that arrives the place data communications equipment.
Referring to Fig. 5, in the present embodiment, installation module 100a specifically comprises:
Set up unit 100a1, for the source optical network device, setting up control channel;
Receiving element 100a2, for the control channel by with the foundation of described source optical network device, the first configuration message that the reception sources optical network device sends, the address information of carrying the source optical network device in the first configuration message;
Unit 100a3, for learning the address information of source optical network device according to the first configuration message.
Comprising that on the basis of setting up unit 100a1 and receiving element 100a2, installation module 100a may further include:
Transmitting element 100a4, for by control channel, to described source optical network device, sending the second configuration message, carry the address information of described source data communication equipment in the second configuration message, the source optical network device of making is learnt the address information of described source data communication equipment.
Referring to Fig. 6, the embodiment of the present invention also provides a provenance optical network device 200, comprising: installation module 200a, receiver module 200b and computing module 200c.
For instance, installation module 200a can specifically comprise:
Set up unit, for described source data communication equipment, setting up control channel;
Receiving element, the control channel for by with described source data communication equipment foundation, receive the second configuration message that described source data communication equipment sends, and carries the address information of described data communications equipment in described the second configuration message;
Unit, for learning the address information of described source data communication equipment according to described the second configuration message.
Further, in the present embodiment, installation module 200a also comprises:
Transmitting element, for by described control channel, to described source data communication equipment, sending the first configuration message, the address information of in described the first configuration message, carrying described source optical network device, make described source data communication equipment learn the address information of described source optical network device.
In the present embodiment, this source optical network device also comprises:
Broadcast module, receive the address information of described source data communication equipment for described receiving element after, be broadcast to the address information of described source data communication equipment on the equipment in the optical-fiber network at optical network device place, described source.
The beneficial effect of device embodiment provided by the invention is: source/place data communications equipment and source/place optical network device is by LMP agreement study the other side's address, the main frame route that arrives the other side's equipment is installed, thereby when setting up label switched path, can be according to this main frame route querying to corresponding outgoing interface, by this outgoing interface, the RSVP message packet is sent to the other side, the source optical network device of making can calculate the path that arrives the place data communications equipment automatically, thereby greatly reduce network O&M personnel's configuration effort, facilitate network design.
Referring to Fig. 7, the embodiment of the present invention also provides a kind of system of setting up label switched path, comprising: source data communication equipment 100 as above and source as above optical-fiber network network equipment 200.
The beneficial effect of device embodiment provided by the invention is: source/place data communications equipment and source/place optical network device is by LMP agreement study the other side's address, the main frame route that arrives the other side's equipment is installed, thereby when setting up label switched path, the source data communication equipment is the outgoing interface address information to corresponding source optical network device according to this main frame route querying, by this outgoing interface, the RSVP message packet is sent to the source optical network device, the source optical network device of making can calculate the path that arrives the place data communications equipment automatically, thereby greatly reduce network O&M personnel's configuration effort, facilitate network design.
The source data communication equipment that the present embodiment provides, source optical network device and set up the system of label switched path, belong to same design with embodiment of the method, and its specific implementation process refers to embodiment of the method, repeats no more here.
The embodiment of the present invention can utilize software to realize, corresponding software program can be stored in the storage medium can read, for example, and in the hard disk of computer, buffer memory or CD.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a method of setting up label switched path, is characterized in that, described method comprises:
Source data communication equipment and source optical network device carry out the link management protocol LMP negotiation, and study is to the address information of described source optical network device, and according to the address information of described source optical network device, install and described source optical network device between route;
According to and described source optical network device between route, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make described source optical network device calculate according to the address information of described bandwidth information and described place data communications equipment the label switched path that reaches described place data communications equipment, and set up the label switched path between described source data communication equipment and described place data communications equipment according to described path;
Described source data communication equipment and described source optical network device carry out the LMP negotiation, and study, to the address information of described source optical network device, comprising:
Described source data communication equipment and described source optical network device are set up control channel;
By the control channel with the foundation of described source optical network device, receive the first configuration message that described source optical network device sends, the address information of in described the first configuration message, carrying described source optical network device;
Learn the address information of described source optical network device according to described the first configuration message.
2. method according to claim 1, is characterized in that, when described control channel is ether interface, described method also comprises:
The next hop address of in described the first configuration message, carrying described source optical network device, the next hop address of described source optical network device is used to indicate the incoming interface address of the described source optical network device of control channel between described source data communication equipment and described source optical network device.
3. method according to claim 1, is characterized in that, described method also comprises:
Described source data communication equipment is by the control channel with the foundation of described source optical network device, send the second configuration message to described source optical network device, the address information of in described the second configuration message, carrying described source data communication equipment, make described source optical network device learn the address information of described source data communication equipment.
4. according to the described method of claim 1-3 any one, it is characterized in that, described method also comprises:
After described source optical network device receives the address information of described source data communication equipment, described address information is broadcast on the equipment in the optical transport network at optical network device place, described source.
5. according to the described method of claim 1-4 any one, it is characterized in that, when described control channel is ether interface, described method also comprises:
Described the second configuration message carries the next hop address of described source data communication equipment, and the next hop address of described source data communication equipment is used to indicate the outgoing interface address of the described source data communication equipment of control channel between described source data communication equipment and described source optical network device.
6. a source data communication equipment, is characterized in that, described equipment comprises:
Installation module, for the source optical network device, carrying out the link management protocol LMP negotiation, study is to the address information of described source optical network device, and according to the address information of described source optical network device, install and described source optical network device between route;
Sending module, for the route between basis and described source optical network device, send RSVP RSVP message to described source optical network device, carry the address information of bandwidth information and place data communications equipment in described RSVP message, make described source optical network device calculate according to the address information of described bandwidth information and described place data communications equipment the label switched path that arrives described place data communications equipment, between described source data communication equipment and described place data communications equipment, to set up described label switched path;
Described installation module comprises:
Set up unit, for described source optical network device, setting up control channel;
Receiving element, receive the first configuration message that described source optical network device sends, the address information of in described the first configuration message, carrying described source optical network device for the control channel by with the foundation of described source optical network device;
Unit, for learning the address information of described source optical network device according to described the first configuration message.
7. equipment according to claim 6, is characterized in that, described installation module also comprises:
Transmitting element, for by described control channel, to described source optical network device, sending the second configuration message, the address information of in described the second configuration message, carrying described source data communication equipment, make described source optical network device learn the address information of described source data communication equipment.
8. a provenance optical network device, is characterized in that, described equipment comprises:
Installation module, for the source data communication equipment, carrying out the link management protocol LMP negotiation, study is to the address information of described source data communication equipment, and according to the address information of described source data communication equipment, install and described source data communication equipment between route;
Receiver module, the RSVP RSVP message sent for receiving described source data communication equipment, described RSVP message is that the route between described source data communication equipment basis and described source light net equipment sends to described source optical network device, and carries the address information of bandwidth information and place data communications equipment in described RSVP message;
Computing module, calculate the label switched path that arrives described place data communications equipment for the address information according to described bandwidth information and described place data communications equipment, between described source data communication equipment and described place data communications equipment, to set up described label switched path.
9. equipment according to claim 8, is characterized in that, described installation module comprises:
Set up unit, for described source data communication equipment, setting up control channel;
Receiving element, the control channel for by with described source data communication equipment foundation, receive the second configuration message that described source data communication equipment sends, and carries the address information of described data communications equipment in described the second configuration message;
Unit, for learning the address information of described source data communication equipment according to described the second configuration message.
10. the described equipment of according to Claim 8-9 any one, is characterized in that, described installation module also comprises:
Transmitting element, for by described control channel, to described source data communication equipment, sending the first configuration message, the address information of in described the first configuration message, carrying described source optical network device, make described source data communication equipment learn the address information of described source optical network device.
11. the described equipment of according to Claim 8-10 any one, is characterized in that, described equipment also comprises:
Broadcast module, receive the address information of described source data communication equipment for described receiving element after, be broadcast to described address information on all devices in the optical-fiber network at optical network device place, described source.
12. a system of setting up label switched path, is characterized in that, described system comprises: source data communication equipment as described as claim 6-7 any one and the described source of claim 8-10 any one optical network device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/077801 WO2012109860A1 (en) | 2011-07-29 | 2011-07-29 | Method, device and system for establishing label switching path |
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| CN102318293A CN102318293A (en) | 2012-01-11 |
| CN102318293B true CN102318293B (en) | 2014-01-01 |
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| WO2012109860A1 (en) * | 2011-07-29 | 2012-08-23 | 华为技术有限公司 | Method, device and system for establishing label switching path |
| WO2014059570A1 (en) * | 2012-10-15 | 2014-04-24 | 华为技术有限公司 | Method, device and system for establishing label switched path |
| CN106803814B (en) * | 2015-11-26 | 2021-01-22 | 中兴通讯股份有限公司 | Method, device and system for establishing flexible Ethernet path |
| CN107222405B (en) * | 2017-06-26 | 2020-06-02 | 杭州绿湾网络科技有限公司 | Data transmission method and system |
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| CN101860769A (en) * | 2009-04-07 | 2010-10-13 | 华为技术有限公司 | Method, device and system for fusing IP and light |
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| KR100462408B1 (en) * | 2002-12-10 | 2004-12-17 | 한국전자통신연구원 | A Fast Re-route Method Using GMPLS in Optical Transport Networks |
| CN101860269B (en) * | 2010-04-20 | 2012-07-11 | 皇明太阳能股份有限公司 | Clamping, supporting and shape-adjusting device for reflecting mirror of heliostat |
| WO2012109860A1 (en) * | 2011-07-29 | 2012-08-23 | 华为技术有限公司 | Method, device and system for establishing label switching path |
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| CN101860769A (en) * | 2009-04-07 | 2010-10-13 | 华为技术有限公司 | Method, device and system for fusing IP and light |
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| J. Lang, Ed. ET.AL..Link Magagement Protocol.《IETF4204》.2005,第6,9页. |
| Link Magagement Protocol;J. Lang, Ed. ET.AL.;《IETF4204》;20051031;第6,9页 * |
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