CN102318293A - Method, advice and system of establishing LSP - Google Patents
Method, advice and system of establishing LSP Download PDFInfo
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- CN102318293A CN102318293A CN2011800015497A CN201180001549A CN102318293A CN 102318293 A CN102318293 A CN 102318293A CN 2011800015497 A CN2011800015497 A CN 2011800015497A CN 201180001549 A CN201180001549 A CN 201180001549A CN 102318293 A CN102318293 A CN 102318293A
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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, equipment and system that sets up label switched path.
Background technology
Along with 3G (3rd-Generation; 3G (Third Generation) Moblie), packet network, the professional continuous expansion of band data; A kind of new network technology-GMPLS (Generalized Multi-Protocol Label Switching, the exchange of general multiple protocols label) that can accomplish label switched path foundation automatically arises 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 carried out interconnected through optical network device; The source data communication equipment can initiate to create a label switched path that arrives the place data communications equipment through the GMPLS signaling according to service needed.
At present, wherein a kind of model of data communication and optical network device intercommunication is Overlay (covering) model in the GMPLS network, and the Overlay model is called GMPLS UNI (User-Network Interface, User Network Interface) model again.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 incoming interface and the outgoing interface address of outgoing interface address, source optical network device incoming interface and outgoing interface address, the place optical network device of assigned source data communications equipment, the incoming interface address of place data communications equipment, the outgoing interface according to appointment sends then; 2,, send according to the outgoing interface of route through the configuring static route.
For dynamic LMP (Link Management Protocol; LMP Link Manager Protocol); The device address that links to each other is dynamically to find, the keeper of source data communication equipment and place data communications equipment possibly be different with the keeper of source optical network device and place optical network device; The keeper of both sides' equipment possibly not know the other side's address in advance like this, and it is all bad to user experience therefore to send signaling message through the mode of specifying outgoing interface or configuring static route; In addition; If opposite equip. has changed the address,,, data communications equipment and light net equipment safeguards because often belonging to two departments if static configuration then needs local terminal equipment also to change the destination address of static routing; If two interdepartmental coordinations are relatively more difficult, then 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, equipment and system that sets up label switched path.
On the one hand, a kind of method of setting up label switched path is provided, said method comprises:
Source data communication equipment and source optical network device carry out LMP to be consulted, and learns the address information of said source optical network device, and according to the address information of said source optical network device, install and said source optical network device between route;
According to and said source optical network device between route; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message; Make said source optical network device calculate the label switched path that arrives said place data communications equipment, thereby between said source data communication equipment and said place data communications equipment, set up said label switched path according to the address information of said bandwidth information and said place data communications equipment.
On the other hand, a kind of source data communication equipment is provided, said equipment comprises:
Installed module is used for carrying out LMP with the source optical network device and consults, and learns the address information of said source optical network device, and according to the address information of said source optical network device, install and said source optical network device between route;
Sending module; Be used for the route indication between basis and the said source optical network device; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message; Make said source optical network device calculate the label switched path that arrives said place data communications equipment, thereby between said source data communication equipment and said place data communications equipment, set up said label switched path according to the address information of said bandwidth information and said place data communications equipment.
On the other hand, a provenance optical network device is provided, said equipment comprises:
Installed module is used for carrying out LMP Link Manager Protocol LMP with the source data communication equipment and consults, and learns the address information of said source data communication equipment, and according to the address information of said source data communication equipment, install and said source data communication equipment between route;
Receiver module; Be used to receive the RSVP RSVP message that said source data communication equipment sends; Said RSVP message is that the route between said source data communication equipment basis and the said source light net equipment sends to said source optical network device, and carries the address information of bandwidth information and place data communications equipment in the said RSVP message;
Computing module; Be used for calculating the label switched path that arrives said place data communications equipment, thereby between said source data communication equipment and said place data communications equipment, set up said label switched path according to the address information of said bandwidth information and said place data communications equipment.
On the other hand, a kind of system that sets up label switched path is provided also, said system comprises: aforesaid source data communication equipment and aforesaid source optical network device.
The beneficial effect of the technical scheme that the embodiment of the invention provides is: source/place data communications equipment and source/place optical network device is through 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 sends to source optical network device through this outgoing interface with signaling message according to the outgoing interface address of this main frame route querying to corresponding source optical network device, and the source optical network device of making can calculate automatically and arrive the logical device path of place data communication; Thereby significantly reduce network O&M personnel's configuration effort, make things convenient for network design.
Description of drawings
Fig. 1 is a kind of flow process of setting up the method for label switched path that the embodiment of the 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 sketch map of setting up the system of label switched path that another embodiment of the present invention provides.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Referring to Fig. 1, the embodiment of the 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 LMP Link Manager Protocol LMP to be consulted; Learn the address information of said source optical network device; And according to the address information of the said source optical network device of learning, install and said source optical network device between route;
102: according to and said source optical network device between route; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message; Make said source optical network device calculate the label switched path that arrives said place data communications equipment, thereby between source data communication equipment and place data communications equipment, set up said label switched path according to the address information of said bandwidth information and place data communications equipment.
In the said method of setting up label switched path that 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 the multiple source optical network device, and present embodiment is not done concrete qualification to this.
Wherein, source data communication equipment and said source optical network device carry out LMP Link Manager Protocol LMP to be consulted, and learns the address information of LMP Link Manager Protocol source optical network device, comprising:
Source data communication equipment and said source optical network device are set up control channel;
Receive first configuration message that said source optical network device sends, the address information of carrying said source optical network device in said first configuration message through said control channel;
Learn the address information of said source optical network device according to said first configuration message.
Further; In the said method of setting up label switched path that present embodiment provides; When said control channel interface is the broadcast type interface; For example during ether interface, the next hop address of carrying said source optical network device in said first configuration message, the next hop address of said source optical network device are used to indicate the incoming interface address on the source optical network device of the control channel of setting up between said source data communication equipment and the said source optical network device.
Further, the said method of setting up label switched path that provides of present embodiment can also comprise:
The said control channel of said source data communication equipment through setting up with said source optical network device; Optical network device sends second configuration message to said source; Carry the address information of said source data communication equipment in said second configuration message, thereby make said source optical network device learn the address information of said source data communication equipment.
Further, the said method of setting up label switched path that provides of present embodiment can also comprise:
After said source optical network device receives the address information of said source data communication equipment; The address information of said source data communication equipment is broadcast to the optical-fiber network at optical network device place, said source, makes other optical network devices in the optical-fiber network also can know the address information of said source data communication equipment.For example; For source optical network device or place optical network device; The other side's who learns through LMP address information and port address, bandwidth information can be incorporated into light net interior routing protocol; Be diffused into the overall optical net through light net interior routing protocol, the optical network device in the optical-fiber network just may learn the route of arrival data communications equipment and continuous data link bandwidth information like this.
Wherein, When said control channel interface is the broadcast type interface; For example during ether interface; Second configuration message carries the next hop address of source data communication equipment, the source data communication equipment that the next hop address of said 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 invention provides is: source/place data communications equipment and source/place light net equipment is through 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 sends to source optical network device through this outgoing interface with signaling message according to the outgoing interface address of this main frame route querying to corresponding source optical network device, and the source optical network device of making can calculate the path that arrives the place data communications equipment automatically; Thereby significantly reduce network O&M personnel's configuration effort, make things convenient for network design.
Referring to Fig. 2, the embodiment of the 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 through GMPLS control channel; Obtain the other side's address information respectively; Said source data communication equipment is according to the address information of said source optical network device, install and said 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, will be called source optical network device (hereinafter to be referred as source N) with the adjacent optical network device of source data communication equipment (hereinafter to be referred as source C), will be called place optical network device (hereinafter to be referred as place N) with the adjacent optical network device of place data communications equipment (hereinafter to be referred as place C).The transmission network model that for example provides referring to Fig. 3 comprises 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, is optical transport network between source N200 and the place N400.
In the present embodiment; Set up before the label switched path; Between source C100 and the source N200, and, place N400 and and place C500 between all install to arrive the other side's main frame route, like the route that the source data communication equipment is installed 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, In optical transport network, can also comprise other optical network devices except described source N200 and place N400; The source data communication equipment also can link to each other with the multiple source 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; Between source data communication equipment and source optical network device, can carry out LMP Link Manager Protocol LMP (Link Management Protocol) 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 control channel CC (Control channel) is managed with related with data link; Wherein, CC is exactly a GMPLS control channel, and concrete can be for being with interior or out-band channel; The data message that in-band channel refers to control message and transmission is in same physical channel; Out-band channel refers to the control message and is in different physical channels with data message, sends at ether interface 1 such as data message, and the control message sends at ether interface 2.LMP Link Manager Protocol LMP effect specifically comprises: 1. the automatic discovery and the maintenance of control channel; 2. verification msg connectivity of link; 3. the chain line Link_ID of associate traffic engineering TE Link two end nodes, interface identifier InterfaceID mapping relations; The TE parameter of checking and synchronous TE Link two end nodes; Like 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 introducing the LMP agreement between source data communication equipment and the source optical network device; At first the source data communication equipment passes through the LMP agreement with the source optical network device; Between them, set up control channel, source data communication equipment and source optical network device send config (configuration) message mutually through control channel again, wherein; Can carry the LSRID (Label Switching Router Identity) of local terminal in the config message, thereby may learn the LSRID address of opposite end through 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 carrying the source optical network device in the config message through 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 through CC; The address information of carrying the source data communication equipment in the 2nd config message, the source optical network device of making is learnt the address information of said source data communication equipment.
In the present embodiment, place N and place C carry out LMP too to be consulted, and detailed process is the same with the negotiations process of above-mentioned source C and source N, and present embodiment repeats no more to this.
In the present embodiment, at 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; Then need 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, be the outgoing interface address of source C.Concrete, when source N was ether interface, the next hop address of then in a config message, carrying source N, the next hop address of source N were used to indicate the incoming interface address of the source N of CC between source C and the source light N; When source C was ether interface, the next hop address that the 2nd config message carries source C, the next hop address of source C were used to indicate the outgoing interface address of the source C of CC between source C and the 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 among the OSPF (Open Shortest Path First, SPF), are published to inner each node of optical-fiber network.For example; For optical-fiber network source N or place N equipment; Opposite end LSRID that learns through LMP and TELINK address, bandwidth information can be incorporated into optical-fiber network interior routing protocol OSPF-TE; Be diffused into the overall optical network through OSPF-TE message, so every optical network device can learn to arrive data communications equipment route and continuous data link bandwidth information.
202: the route between source data communication equipment basis and the source optical network device, send 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, said RSVP message is PATH message.
Further; In the present embodiment; If there is the multiple source optical network device, then 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, then this route-pattern is the load balancing mode; If the route priority of certain CC passage is improved, then this route-pattern is an active/standby mode.If form the load balancing route, then the RSVP message packet can send with the mode of load balancing many control channels; If form active and standby route, then the RSVP message packet is concentrated on certain bar control channel and sends.
In the present embodiment, when source C creates GMPLS UNI LSP, only need 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, need not specify to show paths.Because source C equipment can be known which optical network device that has that oneself links to each other through the LMP agreement; For example the LSRID address of the optical network device that links to each other of source C equipment is followed successively by LSRID1, LSRID2 ... Up to LSRIDM, wherein M representes M source optical network device, so the address of the optical network device that source C can be known according to oneself initiatively connects to source N; Wherein, If there are many control channels, and many control channel is when being active and standby route-pattern, and source C can send RSVP message in the high control channel of priority earlier; If many control channels are modes of load balancing route, then source C can be on many control channels one by one transmission RSVP message.For example; In the present embodiment; Source C and source optical network device LSRID1, LSRID2 ... Be the mode of load balancing between LSRIDM, then C equipment in source is at first attempted sending the RSVP message to source optical network device LSRID1 after obtaining creating the instruction of label switched path; For instance; Source C is control channel CC1 according to the address of source optical network device LSRID1 if search the outgoing interface of route, and then local address (the outgoing interface address of CC on the C of source) and the far-end address (the incoming interface address of CC on the N1 of source) with CC1 fills among the object ERO that shows paths (Explicit Route Object) in the PATH message; Then message is sent to source, opposite end optical network device LSRID1, be used to create UNI LSP.
203: source optical network communication equipment calculates the label switched path that arrives the place data communications equipment according to the address information of bandwidth information of carrying in the RSVP message and place data communications equipment, thereby between source data communication equipment and place data communications equipment, sets up label switched path.
In the present embodiment; After source N receives the PATH message of source C transmission; According to C address, place and bandwidth information,, calculated after the path through calculate the inner label switched path of optical-fiber network automatically based on SPF CSPF (the Constrained Shortest Path First) agreement of constraint; Handle through carrying the information indication intermediate node that shows paths in the signaling message, to set up the label switched path between source C and place C.
For instance, referring to Fig. 3,, source N200 passes through the path that optical-fiber network arrives place C500 if calculating; Then corresponding incoming interface is found, in this incoming interface bandwidth resource in the incoming interface address of CC1 on the N200 of source of carrying of the ERO in the PATH message that at first sends over according to source C100 of source N200; Then in local outgoing interface distributing labels; Setting up forward LSP interconnection list item, the ERO of PATH message is replaced with the routing information that local CSPF calculates, be about to local address (the outgoing interface address of source N200) and fill among the ERO with far-end address (the incoming interface address of the downstream optical network device that links to each other with source N200); Then said PATH message is sent to the downstream optical network device; This downstream optical network device receives after the PATH message that the source N200 at the upper reaches 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; The downstream optical network device that PATH message is continued on the path that calculates sends, and after the optical network device of the centre in the optical transport network and place N400 receive PATH message, repeats the handling process of the above-mentioned intermediate light network equipment; Place N400 sends to place C500 with PATH message at last; Place C500 is in the incoming interface bandwidth resource, and the forward of setting up local LSP connects list item, thereby creates a forward LSP who passes through the C100 to the source of the C500 from the place of optical transport network.Place C500 responds RESV message and gives place N400 after handling PATH message, and in the place incoming interface bandwidth resource of C500; In the outgoing interface distributing labels, set up reverse LSP and connect list item, place N400 receives after the RESV message; In the incoming interface bandwidth resource; In the outgoing interface distributing labels, set up reverse LSP and connect list item, continuing RESV message upstream then, optical network device sends; To the last RESV message arrives source C100, thus create a C100 who passes through optical transport network from the source to the place the reverse LSP of C500.For instance; In the present embodiment; If source light net equipment LSRID1 does not arrive the path of place C500, then source light net equipment LSRID1 responds PATH ERR message and gives source C100, and source C100 can reattempt to other source optical network devices and send PATH message; Other source optical network devices that receive PATH message are execution in step 202 and 203 again, originally is implemented in this and repeats no more.
Further, in the present embodiment, if which source optical network device the user knows the UNI LSP that arrives place C500 through, then can be during showing paths the address of increase source optical network device, minimizing source C100 equipment is used to time of attempting setting up.For example; If the user knows when creating certain strip label switching path, need be through source optical network device N200, then can be in showing paths the address information of increase source optical network device N200; The source C100 of making can be directly according to the address information of source N200; Optical network device N200 connects with the source, thereby avoids source C100 in the route of installing with the multiple source optical network device, and going one by one attempts connecting.
In the present embodiment, the CC passage can be for being with interior or out-band method, 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 for being with interior or the band external tapping.In addition, the above-mentioned idiographic flow of setting up LSP is a kind of mode that realizes setting up LSP, does not require that all systems all like this.Wherein, forward LSP outgoing label go into label with reverse LSP can be identical; Forward LSP goes into label can be identical with reverse LSP outgoing label.This present embodiment is not done concrete qualification.
The beneficial effect of method embodiment provided by the invention is: source/place data communications equipment and source/place optical network device is through 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 sends to source light net equipment through this outgoing interface with signaling message according to the outgoing interface address information of this main frame route querying to corresponding source optical network device.Wherein, The other side's that source optical network device and place optical network device equipment need to learn through the LMP agreement address; Be incorporated among the OSPF or intermediate system ISIS Routing Protocols such as (intermidiate system intermediate system) of self; Be flooded to the optical transport network territory, the source optical network device is received the RSVP message that the source data communication equipment sends over, and can calculate the path that arrives the place data communications equipment automatically according to the CSPF algorithm.
Referring to Fig. 4, embodiment of the invention embodiment provides a kind of source data communication equipment 100, comprising: installed module 100a and sending module 100b.
Sending module 100b; Be used for the route between basis and the said source optical network device; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message, make the source optical network device calculate the label switched path that arrives the place data communications equipment according to the address information of said bandwidth information and place data communications equipment.
Referring to Fig. 5, in the present embodiment, installed module 100a specifically comprises:
Set up unit 100a1, be used for setting up control channel with the source optical network device;
Receiving element 100a2 is used for the control channel through setting up with said source optical network device, first configuration message that the reception sources optical network device sends, the address information of carrying the source optical network device in first configuration message;
Unit 100a3 is used for learning according to first configuration message address information of source optical network device.
Comprising that installed module 100a may further include on the basis of setting up unit 100a1 and receiving element 100a2:
Transmitting element 100a4; Be used for sending second configuration message to said source optical network device through control channel; Carry the address information of said source data communication equipment in second configuration message, the source optical network device of making is learnt the address information of said source data communication equipment.
Referring to Fig. 6, the embodiment of the invention also provides a provenance optical network device 200, comprising: installed module 200a, receiver module 200b and computing module 200c.
For instance, installed module 200a can specifically comprise:
Set up the unit, be used for setting up control channel with said source data communication equipment;
Receiving element is used for the control channel through setting up with said source data communication equipment, receives second configuration message that said source data communication equipment sends, and carries the address information of said data communications equipment in said second configuration message;
Unit is used for learning according to said second configuration message address information of said source data communication equipment.
Further, in the present embodiment, installed module 200a also comprises:
Transmitting element; Be used for sending first configuration message to said source data communication equipment through said control channel; The address information of carrying said source optical network device in said first configuration message makes said source data communication equipment learn the address information of said source optical network device.
In the present embodiment, this source optical network device also comprises:
Broadcast module, be used for address information that said receiving element receives said source data communication equipment after, the address information of said source data communication equipment is broadcast on the equipment in the optical-fiber network at optical network device place, said source.
The beneficial effect of device embodiment provided by the invention is: source/place data communications equipment and source/place optical network device is through 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 through this outgoing interface the RSVP message packet be sent to the other side according to this main frame route querying to corresponding outgoing interface, the source optical network device of making can calculate the path that arrives the place data communications equipment automatically; Thereby significantly reduce network O&M personnel's configuration effort, make things convenient for network design.
Referring to Fig. 7, the embodiment of the invention also provides a kind of system that sets up label switched path, comprising: aforesaid source data communication equipment 100 and aforesaid source 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 through 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 sends to source optical network device through this outgoing interface with the RSVP message packet according to the outgoing interface address information of this main frame route querying to corresponding source optical network device, and the source optical network device of making can calculate the path that arrives the place data communications equipment automatically; Thereby significantly reduce network O&M personnel's configuration effort, make things convenient for network design.
The source data communication equipment that present embodiment provides, source optical network device and set up the system of label switched path belong to same design with method embodiment, and its concrete implementation procedure sees method embodiment for details, repeats no more here.
The embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, for example, and in the hard disk of computer, buffer memory or the CD.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a method of setting up label switched path is characterized in that, said method comprises:
Source data communication equipment and source optical network device carry out LMP Link Manager Protocol LMP to be consulted, and learns the address information of said source optical network device, and according to the address information of said source optical network device, install and said source optical network device between route;
According to and said source optical network device between route; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message; Make said source optical network device calculate the label switched path that reaches said place data communications equipment, and set up the label switched path between said source data communication equipment and the said place data communications equipment according to said path according to the address information of said bandwidth information and said place data communications equipment.
2. method according to claim 1 is characterized in that, said source data communication equipment and said source optical network device carry out LMP to be consulted, and learns the address information of said source optical network device, comprising:
Said source data communication equipment and said source optical network device are set up control channel;
Control channel through setting up with said source optical network device receives first configuration message that said source optical network device sends, the address information of carrying said source optical network device in said first configuration message;
Learn the address information of said source optical network device according to said first configuration message.
3. method according to claim 2 is characterized in that, when said control channel was ether interface, said method also comprised:
The next hop address of carrying said source optical network device in said first configuration message, the next hop address of said source optical network device are used to indicate the incoming interface address of the said source optical network device of control channel between said source data communication equipment and the said source optical network device.
4. method according to claim 1 and 2 is characterized in that, said method also comprises:
The control channel of said source data communication equipment through setting up with said source optical network device; Optical network device sends second configuration message to said source; The address information of carrying said source data communication equipment in said second configuration message makes said source optical network device learn the address information of said source data communication equipment.
5. according to any described method of claim 1-4, it is characterized in that said method also comprises:
After said source optical network device receives the address information of said source data communication equipment, said address information is broadcast on the equipment in the optical transport network at said source optical network device place.
6. according to any described method of claim 1-5, it is characterized in that when said control channel was ether interface, said method also comprised:
Said second configuration message carries the next hop address of said source data communication equipment, and the next hop address of said source data communication equipment is used to indicate the outgoing interface address of the said source data communication equipment of control channel between said source data communication equipment and the said source optical network device.
7. a source data communication equipment is characterized in that, said equipment comprises:
Installed module is used for carrying out LMP Link Manager Protocol LMP with the source optical network device and consults, and learns the address information of said source optical network device, and according to the address information of said source optical network device, install and said source optical network device between route;
Sending module; Be used for the route between basis and the said source optical network device; Send RSVP RSVP message to said source optical network device; Carry the address information of bandwidth information and place data communications equipment in the said RSVP message; Make said source optical-fiber network network equipment calculate the label switched path that arrives said place data communications equipment, between said source data communication equipment and said place data communications equipment, to set up said label switched path according to the address information of said bandwidth information and said place data communications equipment.
8. equipment according to claim 7 is characterized in that, said installed module comprises:
Set up the unit, be used for setting up control channel with said source optical network device;
Receiving element is used for receiving first configuration message that said source optical network device sends, the address information of carrying said source optical network device in said first configuration message through the control channel with the foundation of said source optical network device;
Unit is used for learning according to said first configuration message address information of said source optical network device.
9. according to claim 7 or 8 described equipment, it is characterized in that said installed module also comprises:
Transmitting element; Be used for sending second configuration message to said source optical network device through said control channel; The address information of carrying said source data communication equipment in said second configuration message makes said source optical network device learn the address information of said source data communication equipment.
10. a provenance optical network device is characterized in that, said equipment comprises:
Installed module is used for carrying out LMP Link Manager Protocol LMP with the source data communication equipment and consults, and learns the address information of said source data communication equipment, and according to the address information of said source data communication equipment, install and said source data communication equipment between route;
Receiver module; Be used to receive the RSVP RSVP message that said source data communication equipment sends; Said RSVP message is that the route between said source data communication equipment basis and the said source light net equipment sends to said source optical network device, and carries the address information of bandwidth information and place data communications equipment in the said RSVP message;
Computing module; Be used for calculating the label switched path that arrives said place data communications equipment, between said source data communication equipment and said place data communications equipment, to set up said label switched path according to the address information of said bandwidth information and said place data communications equipment.
11. equipment according to claim 10 is characterized in that, said installed module comprises:
Set up the unit, be used for setting up control channel with said source data communication equipment;
Receiving element is used for the control channel through setting up with said source data communication equipment, receives second configuration message that said source data communication equipment sends, and carries the address information of said data communications equipment in said second configuration message;
Unit is used for learning according to said second configuration message address information of said source data communication equipment.
12., it is characterized in that said installed module also comprises according to claim 10 or 11 described equipment:
Transmitting element; Be used for sending first configuration message to said source data communication equipment through said control channel; The address information of carrying said source optical network device in said first configuration message makes said source data communication equipment learn the address information of said source optical network device.
13., it is characterized in that said equipment also comprises according to any described equipment of claim 10-12:
Broadcast module, be used for address information that said receiving element receives said source data communication equipment after, said address information is broadcast on all devices in the optical-fiber network at optical network device place, said source.
14. a system that sets up label switched path is characterized in that, said system comprises: like each described source data communication equipment of claim 7-9 and each described source optical network device of claim 10-13.
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 true CN102318293A (en) | 2012-01-11 |
| CN102318293B CN102318293B (en) | 2014-01-01 |
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| CN201180001549.7A Expired - Fee Related CN102318293B (en) | 2011-07-29 | 2011-07-29 | Method, advice and system of establishing LSP |
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| WO (1) | WO2012109860A1 (en) |
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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 |
| CN103238299A (en) * | 2012-10-15 | 2013-08-07 | 华为技术有限公司 | Method, apparatus and system for establishment of label switching paths |
| CN106803814A (en) * | 2015-11-26 | 2017-06-06 | 中兴通讯股份有限公司 | A kind of method for building up, the apparatus and system in flexible Ethernet path |
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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 |
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| US20040109687A1 (en) * | 2002-12-10 | 2004-06-10 | Hyeon Park | Fast rerouting method through generalized multi-protocol label switching |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN103238299A (en) * | 2012-10-15 | 2013-08-07 | 华为技术有限公司 | Method, apparatus and system for establishment of label switching paths |
| 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 |
| CN103238299B (en) * | 2012-10-15 | 2015-04-01 | 华为技术有限公司 | Method, apparatus and system for establishment of label switching paths |
| CN106803814A (en) * | 2015-11-26 | 2017-06-06 | 中兴通讯股份有限公司 | A kind of method for building up, the apparatus and system in flexible Ethernet path |
| CN107222405A (en) * | 2017-06-26 | 2017-09-29 | 杭州绿湾网络科技有限公司 | Data transmission method and system |
| 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 |
Also Published As
| Publication number | Publication date |
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| CN102318293B (en) | 2014-01-01 |
| WO2012109860A1 (en) | 2012-08-23 |
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