CN101686420A - Information transmission method in an optical transport network and network elements - Google Patents
Information transmission method in an optical transport network and network elements Download PDFInfo
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Abstract
The present invention relates to an optical transport network technology, discloses an information transmission method in an optical transport network and network elements, wherein, the method comprises steps of judging the type of information to be transmitted, if the information to be transmitted comprises management information and/or control information, embedding the management information tobe transmitted into the first byte of the two bytes of GCC0 of an OTUk data frame, and/or embedding the control information to be transmitted into the second byte of the two bytes of GCC0 of the OTUkdata frame, and transmitting the OTUk data frame embedded with the management information and/or the control information. According to the invention, because one byte of GCC0 is used for carrying management information to be transmitted and the other byte of the GCC0 is used for carrying control information, the other byte of the GCC0 can be occupied if a control channel has transmission controlinformation, therefore, it can be assured that management information and control information can be both transmitted successfully.
Description
Technical field
The present invention relates to optical transfer network (Optical Transport Network is called for short OTN) technology, relate in particular to information transferring method and network element among a kind of OTN.
Background technology
Optical transport hierarchy (Optical Transport Hierarchy is called for short OTH) is the digital transmission system of generation standardization, is used for the corresponding adaptive payload of transmission process on optical fiber transmission network.OTH supports the operation and the management of various structured light networks such as point-to-point, annular, lattice shape.OTN based on OTH is a kind of transparent transmission network that develops formation at the coarse grained dispatching requirement of the big capacity of backbone network level, has adopted digital wrapper technology.The appearance of OTN can be managed for network operator and client provide, can operate, light delivery platform of new generation efficiently.
ASON (Automatically Switched Optical Network, be called for short ASON) be a kind of base light network with high flexibility and enhanced scalability, its basic thought is to introduce the real-time distribution according to need of control plane with the realization Internet resources in optical transport network, thereby realizes Intellectualization of Optical Network.It is with SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy; be called for short SDH) and OTN be basic; with optical fiber is the physical transfer medium; finish automatic exchange and be connected control by control plane; service can directly be provided on photosphere; thereby satisfy user's demand apace, and solve problems such as network extensibility, manageability, quick configure user bandwidth and end-to-end protection effectively.
Data communication network (Data Communication Network is called for short DCN) is a network that is used to the transmission passage that management information and control information are provided between management plane, control plane and transmission internal plane and the three among the ASON.DCN has in the band and the outer dual mode of band.
In-band method is meant that management and control information carried by embedding control channel of the transport service information that is embedded in of optical fiber link inside (Embedded Control Channel is called for short ECC) or dedicated channel.For example, in SDH, can adopt data communication channel (Data Communication Channel, abbreviation DCC) expense is carried management and the control information among the DCN, in OTN, can adopt General Purpose Communication Channel (GeneralCommunication Channel is called for short GCC) expense to carry management and the control information among the DCN.
Out-band method is meant that management and control information carried by the communication port of special use, and promptly the optical fiber link with bearer service information separates.For example, can adopt outside IP network or special circuit to carry management and control information among the DCN.
DCN comprises management communication network (Management Communication Network is called for short MCN) and signaling communication network (Signaling Communication Network is called for short SCN).MCN is used for transfer management information in management plane.For example, network management device can issue configuration information to related network elements by MCN; Network element also can be by MCN to the network management device reported event.SCN is used for command transmitting information, i.e. control information in control plane.For example, in the optical-fiber network that constitutes by the intelligent net element of supporting ASON, can pass through signaling (as the RSVP (ResourceReSerVation Protocol-Traffic Engineering is called for short RSVP-TE) of band traffic engineering) foundation in network, maintenance and dismounting is connected.These signalings can all be carried on the SCN.Also have in the band among MCN and the SCN respectively and the outer dual mode of band.
Optical Channel Transport Unit-k (Optical channel Transport Unit-k is called for short OTUk) is a kind of frame structure among the OTN, is illustrated in figure 1 as OTUk frame structure schematic diagram in the prior art.In OTUk, GCC0 is positioned at the head of frame, take the 11st and 12 bytes, GCC0 is used for bearer management information (for example all kinds of monitor messages, alarming processing information etc.) and control information (for example, the signaling of expansion multi protocol label exchange (GeneralMultiProtocol Label Switching is called for short GMPLS)).In OTU1, OTU2 and OTU3, the transmission rate of GCC0 beared information is respectively 333kb/s, 1.33Mb/s, 5.33Mb/s.
Owing in GCC0, need bearer management information and these two kinds of information of control information, usually adopt these two kinds of information of a kind of mixed mode transmissions in the prior art, for example, when the needs transmit management information, whole bearer management information in two bytes of GCC0, behind the management information end of transmission, could discharge taking to the GCC0 byte.Equally, when the needs control information transmission, whole bear control information behind the control information end of transmission, could discharge taking the GCC0 byte in two bytes of GCC0.
When the data volume of management information and control information is all little, adopt this mixed transport mode of prior art not have problem.But if under certain conditions, the data volume of a certain information increases suddenly, and this information can take GCC0 byte in the Frame for a long time, thereby causes another kind of information to transmit, and may cause network catastrophe failure to occur like this.For example, in when, in the network node or link failure taking place when, neighbor node may produce a large amount of warning information, these warning information can take the GCC0 byte in the Frame always, finish up to the warning information transmission, can cause the signaling (for example, RSVP-TE signaling) of control plane to get clogged so always, can't send, other nodes then might take for control plane because can not receive the soft refresh message of control information for a long time fault has taken place.Obviously, when the data volume of management information and/or control information was big, this transmission means of prior art can cause management information and control information not to transmit smoothly.
Summary of the invention
The present invention is directed to the problem that prior art exists, information transferring method among a kind of OTN is provided, can guarantee the smooth transmission of management information and control information.
The embodiment of the invention provides information transferring method in a kind of optical transfer network, comprising:
Judge the type of the information that desire sends, if the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Transmission has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information.
The embodiment of the invention provides information transferring method in a kind of optical transfer network, comprising:
The Optical Channel Transport Unit-k Frame of management information and/or control information has been carried in reception;
Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
The embodiment of the invention provides information transferring method in a kind of optical transfer network, comprising:
Judge whether the port of being responsible for communicating by letter in two nodes of mutual communication all supports the intelligent net element function, if the port of the responsible communication of described two nodes is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission;
Judge the type of the information that desire sends, if the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Transmission has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information.
Information transferring method in a kind of optical transfer network of the embodiment of the invention comprises:
Judge whether the port of being responsible for communicating by letter in two nodes of mutual communication all supports the intelligent net element function, if the port of the responsible communication of described two nodes is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission;
The Optical Channel Transport Unit-k Frame of management information and/or control information has been carried in reception;
Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
The embodiment of the invention provides the network element in a kind of optical transfer network, comprising:
First judge module is used to judge the type of the information that desire sends;
Merge module, be connected with described first judge module, be used for when the information of desire transmission comprises management information and/or control information, the management information that desire is sent is embedded into first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Sending module is connected with described merge module, is used to send the Optical Channel Transport Unit-k Frame that has embedded management information and/or control information.
The embodiment of the invention provides the network element in a kind of optical transfer network, comprising:
Receiver module is used to receive the Optical Channel Transport Unit-k Frame that has carried management information and/or control information;
Extraction module, be connected with described receiver module, be used for from the first byte extract management information that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
The embodiment of the invention provides the network element in a kind of optical transfer network, comprising:
First judge module is used to judge the type of the information that desire sends and output judged result;
Second judge module is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function, and the output judged result;
First merge module, be connected with described second judge module with described first judge module respectively, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission, and the judged result according to described first judge module output is that the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame; And output has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information;
Sending module is connected with described first merge module, is used to send the Optical Channel Transport Unit-k Frame that has embedded management information and/or control information.
The embodiment of the invention provides the network element in a kind of optical transfer network, comprising:
Second judge module is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function, and the output judged result;
Receiver module is used to receive the Optical Channel Transport Unit-k Frame that has carried management information and/or control information;
First extraction module, be connected with described receiver module with described second judge module respectively, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter is all supported the intelligent net element function, determines to exist between described two nodes the control channel of control information transmission; Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
In embodiments of the present invention, the management information that desire sends adopts some bytes of GCC0 to carry, it can be first byte, also can be second byte, another byte is used for bear control information, like this, if when carrying out having the control channel of control information transmission between two nodes of message transmission, can come bear control information by another byte of GCC0.In this way, make management information and control information unaffected mutually in transmission course, can guarantee the smooth transmission of management information and control information.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Figure 1 shows that OTUk frame structure schematic diagram in the prior art;
Figure 2 shows that information transferring method embodiment one flow chart among the OTN of the present invention;
Figure 3 shows that information transferring method embodiment two flow charts among the OTN of the present invention;
Figure 4 shows that information transferring method embodiment three flow charts among the OTN of the present invention;
Figure 5 shows that information transferring method embodiment four flow charts among the OTN of the present invention;
Figure 6 shows that a network architecture schematic diagram that relates among the information transferring method embodiment among the OTN of the present invention;
Figure 7 shows that network element embodiment one structural representation among the OTN of the present invention;
Figure 8 shows that network element embodiment two structural representations among the OTN of the present invention;
Figure 9 shows that network element embodiment three structural representations among the OTN of the present invention;
Figure 10 shows that network element embodiment four structural representations among the OTN of the present invention.
Embodiment
Be illustrated in figure 2 as information transferring method embodiment one flow chart among the OTN of the present invention, comprise:
The type of the information that step 101, judgement desire send, if the information that desire sends comprises a kind of in management information or the control information, first byte in two bytes of the GCC0 of the management information embedding OTUk Frame that then desire is sent, second byte in two bytes of the GCC0 of the control information embedding OTUk Frame that perhaps desire is sent; If the information that desire sends comprises these two kinds of management information and control informations, then the management information that desire is sent embeds first byte in two bytes of GCC0 of OTUk Frame, and the control information that desire sends is embedded second byte in two bytes of GCC0 of OTUk Frame.
Step 102, transmission have embedded the OTUk Frame of management information and/or control information.
Among the embodiment one, the management information that desire sends is carried with the some bytes among the GCC0, can be first byte (11 byte), also can be second byte (12 byte), another byte is used for bear control information, in this way, make management information and control information unaffected mutually in transmission course, can guarantee the smooth transmission of management information and control information.
Be illustrated in figure 3 as information transferring method embodiment two flow charts among the OTN of the present invention, comprise:
The OTUk Frame of management information and/or control information has been carried in step 201, reception;
In the embodiment of the invention two, after receiving the OTUk Frame, can be from first byte of OTUk Frame GCC0 extract management information.If communicate the passage that has control information transmission between two nodes, then can from second byte of GCC0, extract control information, like this, management information and control information are unaffected mutually in transmission course, are convenient to extract management information and/or control information from the OTUk Frame that receives.
Introduce information transferring method among the OTN under the various situations below respectively.
In transmission information, management information and control information always all do not need to transmit, under the situation about having, and a transmit management information between the adjacent node, under the situation about having, the two all needs transmission.In view of the situation, can be in advance the state of two nodes of mutual communication be carried out a judgement, determine on the communication link between two nodes, to need to transmit at present which information then.
In network, the communication between two nodes is undertaken by port separately.Particularly, when netinit,, can judge whether the port of being responsible for communicating of these two nodes supports the intelligent net element function, for example whether supports the ASON function for two nodes of desiring to carry out message transmission communication.If two ports are all supported, then can determine to desire to carry out to exist between two nodes of message transmission the control channel (carry out always existing between two nodes of message transmission the management channels of transmit management information, so only judge whether to exist control channel herein) of control information transmission.If have one not support in two ports, then can determine to desire to carry out not exist between two nodes of message transmission the control channel of control information transmission.Control channel is a communication link in logic that carries out between two nodes of message transmission herein, and control information is transmitted between two nodes, is equivalent to form a control channel.
Whether have the intelligent net element function for the port of being responsible for communicating how to judge these two nodes, following dual mode can be arranged:
(1) port that by manual type the responsible communication of each node is set in advance is in the intelligent net element functional status, and so-called intelligent net element functional status is meant promptly whether this port supports the intelligent net element function.When communicating, the node of serving as the transmit leg role can detect the intelligent net element functional status of the port of two nodes desiring to carry out message transmission earlier, thereby judges the transmission that whether needs control information in the communication link of this node.
(2) can utilize existing link protocol, for example LMP Link Manager Protocol (Link ManagementProtocol is called for short LMP) or other privately owned LMP Link Manager Protocol carry out passage discovery and configuration automatically automatically.After configuring a physical link between the adjacent node, in the process that link parameter is consulted, whether two adjacent nodes can have local port the information of intelligent net element function, and message is told to the other side through consultation, find automatically and layoutprocedure thereby finish passage.
For two nodes that carry out message transmission, can judge earlier whether the port of being responsible for communicating of these two nodes has the intelligent net element function, thereby judge between these two nodes whether have control channel.
If have control channel between two nodes, need carry out the transmission of control information and management information, then the transmit leg in two nodes carries the management information that desire sends by a byte among the GCC0, for example with the 11st byte as managing communication channels (Management Communication Channel, be called for short MCC) byte, be used for bearer management information, with the 12nd byte as signaling communication channel (Signaling Communication Channel, be called for short SCC) byte, be used for bear control information, also the two can be exchanged.Like this, just in transfer management information, also can guarantee the transmission of control information, management information and control information be equivalent to respectively by two mutually independently communication link be transmitted.
If do not have control channel between two nodes, only there is management channels, only need manage transmission of Information, then this transmit leg management information that tendency to develop is defeated is carried by two bytes among the GCC0.At this time, two of GCC0 bytes are all used as the MCC byte.For the situation that does not have control channel, carry the utilance that management information can effectively improve communication link with two bytes of GCC0.
Mode by above several message transmission as can be seen, by two bytes of GCC0 are carried out concrete appointment, specify respectively and be used for transmit management information and control information, in the needs transmit management information, need not like this to consider whether have control information to be transmitted, only need management information is got final product by specific byte carrying, in the needs control information transmission, also need not to consider whether have management information to be transmitted, transmit management information and control information can be regarded two links independent of each other as, thereby can overcome a problem that can cause another to get clogged when transmitting in management information in the prior art or the control information.
Carry out two nodes of message transmission, need consult in advance, specifically which byte among the GCC0 is decided to be the MCC byte, which byte is decided to be the SCC byte.Though bearer management information can be any one byte among the GCC0, two nodes that carry out message transmission should be consistent for the understanding of the function of each byte among the GCC0.
Based on the negotiation between two nodes that carry out message transmission, when the recipient receives the OTUk Frame, whether the port of being responsible for communicating that also can judge these two nodes in advance has the intelligent net element function, thereby judges between these two nodes whether have control channel.
If have control channel between these two nodes, then the recipient extracts GCC0 from the OTUk frame that receives, extract management information from the MCC byte of GCC0, and management information is sent to the relevant processing module of management plane handle; From the SCC byte of GCC0, extract control information, and control information is sent to the relevant processing module of control plane handle.
If do not have control channel between these two nodes, then the recipient extracts GCC0 from the OTUk frame that receives, extract management information from two bytes of GCC0, and the related process module that management information sends to management plane handled.
Be illustrated in figure 4 as information transferring method embodiment three flow charts among the OTN of the present invention, comprise:
Step 301, judge between two nodes carrying out message transmission whether have control channel, if exist, then execution in step 303, and if there is no, then execution in step 302.
Step 302, the management information that desire is sent embed two bytes among the GCC0, and execution in step 306 then.
Step 303, judgement desire send the type of information, if the information that desire sends is control information, then execution in step 304, if the information that desire sends is management information, then execution in step 305.
Step 304, the control information that desire is sent embed the SCC byte among the GCC0, execution in step 306.
Step 305, the management information that desire is sent embed the MCC byte among the GCC0, execution in step 306.
Step 306, the OTUk Frame information that will embed management information and/or control information send.
Be illustrated in figure 5 as information transferring method embodiment four flow charts among the OTN of the present invention, comprise:
Step 401, judge between two nodes carrying out message transmission whether have control channel, if exist, then execution in step 403, and if there is no, then execution in step 402.
Step 402, from two bytes of the GCC0 of the OTUk Frame that receives extract management information.
Step 403, from the SCC byte of the GCC0 of the OTUk Frame that receives, extract control information, and/or from the MCC byte extract management information.
The carrying and the extraction of management information and control information in the clear in a flowchart clear in brief embodiment of the invention of Fig. 4 and Fig. 5.
Example with transmission information between the network element in the concrete network architecture illustrates below.
Be illustrated in figure 6 as a network architecture schematic diagram that relates among the information transferring method embodiment among the OTN of the present invention.Suppose first network element (Network Element, abbreviation NE) 11 first port one 11 and Gateway Network Element (Gateway Network Element, guide number E) 14 first port one 41 is not all supported the intelligent net element function, and each port of other ports of first network element 11 and Gateway Network Element 14 and second network element 12 and the 3rd network element 13 is all supported the intelligent net element function.Among the figure, network management device 15 is connected with Gateway Network Element 14.
If first network element 11 need report performance event (a kind of management information) to network management device 15 by Gateway Network Element 14, then first network element 11 can be judged earlier and not have control channel (because first port one 11 of first network element 11 and first port one 41 of Gateway Network Element 14 are not all supported the intelligent net element function) between first network element 11 and the Gateway Network Element 14, first port one 11 can embed the performance event information of desire transmission two bytes among the GCC0 then, and the OTUk Frame is sent to first port one 41 of Gateway Network Element 14.First port one 41 judges between first network element 11 and the Gateway Network Element 14 not have control channel after receiving the OTUk Frame, then extract management information from two bytes of GCC0.
If second network element 12 need report performance event to network management device 15 by first network element 11 and Gateway Network Element 14, then first port one 21 of second network element 12 can be judged earlier and has control channel (because the 3rd port one 13 of first network element 11 and first port one 21 of second network element are all supported the intelligent net element function) between second network element 12 and first network element 11, first port one 21 of second network element 12 performance event information that desire is sent embeds the MCC byte among the GCC0 then, and the OTUk Frame is sent to the 3rd port one 13 of first network element 11; The 3rd port one 13 of first network element 11 is judged to have the control communication channel between second network element 12 and first network element 11 after receiving the OTUk Frame, extract performance event information then from the MCC byte of GCC0.First network element 11 can send it to network element gateway 14 after receiving the performance event information that second network element 12 reports, concrete process of transmitting repeats no more.
If label switched path (Label Switching Path is arranged, be called for short LSP) through second network element, 12 → the first network elements 11 → the 3rd network element 13 → network element gateway 14, then when adopting in-band method, the signaling message of LSP (a kind of control information) also will transmit along this path.First port one 21 of second network element 12 embeds signaling message the SCC byte of GCC0, the 3rd port one 13 that then the OTUk Frame is sent to the 3rd port one 13, the first network elements 11 of first network element 11 extracts signaling message from the SCC byte of GCC0 after receiving the OTUk Frame.The management information between first network element 11 and the 3rd network element 13, the 3rd network element 13 and the network element gateway 14 and/or the transmission means of control information and management information and/or control information transmission manner between first network element 11 and second network element 12 are similar, repeat no more herein.
If second network element 12 has management information and control information to need to send simultaneously, then management information and control information can take MCC byte and the SCC byte of GCC0 respectively, promptly be equivalent to respectively by two independently logical communications links transmission, even second network element 12 has a large amount of performance event informational needs to report, still can control information transmission between second network element 12 and first network element 11.
Be illustrated in figure 7 as network element embodiment one structural representation among the OTN of the present invention, this network element comprises: first judge module 21, first merge module 22 and first sending module, 23, the first merge modules 22 are connected with first sending module 23 with first judge module 21 respectively.First judge module 21 is used to judge the type of the information that desire sends, if first judge module 21 is judged information that desires send and is comprised a kind of in management information or the control information, then first merge module 22 management information that desire is sent embeds first byte in two bytes of GCC0 of OTUk Frame, and perhaps the control information that desire is sent embeds second byte in two bytes of GCC0 of OTUk Frame; If first judge module 21 is judged information that desires send and is comprised these two kinds of management information and control informations, then first merge module 22 management information that desire is sent embeds first byte in two bytes of GCC0 of OTUk Frame, and the control information that desire sends is embedded second byte in two bytes of GCC0 of OTUk Frame.OTUk Frame through after merge module 12 processing is sent by first sending module 23.
Be illustrated in figure 8 as network element embodiment two structural representations among the OTN of the present invention, this network element comprises: interconnective first receiver module 31 and first extraction module 32.After first receiver module 31 receives the OTUk Frame that has carried management information and/or control information, first extraction module 32 is extract management information from first byte that carries management information of the GCC0 of OTUk Frame, and/or extract control information from second byte that carries control information of the GCC0 of OTUk Frame.
Be illustrated in figure 9 as network element embodiment three structural representations among the OTN of the present invention, this network element comprises: second judge module 41, the 3rd judge module 42, second merge module 43 and second sending module 44, second merge module 43 is connected with the 3rd judge module 42 with second judge module 41 respectively, and second sending module 44 is connected with second merge module 43.Second judge module 41 is used to judge the type of the information that desire sends; The 3rd judge module 42 is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function; If the port of the responsible communication of two nodes is all supported the intelligent net element function, then the 3rd judge module 42 determines to exist between two nodes the control channel of control information transmission, second judge module 41 is judged when the information of desire transmission comprises management information and/or control information, second merge module 43 is with first byte in two bytes of the GCC0 of the management information embedding OTUk Frame of desire transmission, and/or the control information that desire sends being embedded second byte in two bytes of GCC0 of OTUk Frame, the OTUk Frame that carries management information and/or control information after will being handled through second merge module 43 by second sending module 44 then sends.
Do not support the intelligent net element function if there is one in the port of the responsible communication of two nodes, then the 3rd judge module 42 determines not exist between two nodes the control channel of control information transmission, second judge module 41 is judged when the information of desire transmission comprises management information, can also comprise one the 3rd merge module in the network element shown in Figure 9, the 3rd merge module respectively with second judge module 41, the 3rd judge module 42 is connected with second sending module 44, the management information that desire is sent embeds in two bytes of GCC0 of OTUk Frame, the OTUk Frame that will embed management information then sends to second sending module 44, and the embedding after will being handled through the 3rd merge module by second sending module 44 has the OTUk Frame of management information to send.
Figure 10 shows that network element embodiment four structural representations among the OTN of the present invention, this network element comprises: the 4th judge module 51, second receiver module 52 and second extraction module, 53, the second extraction modules 53 are connected with the 4th judge module 51 with second receiver module 52 respectively.The 4th judge module 51 is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function; When second receiver module 52 receive carried management information and/the OTUk Frame of control information after, if the port of the responsible communication of two nodes is all supported the intelligent net element function, then the 4th judge module 51 determines to exist between two nodes the control channel of control information transmission, second extraction module 53 is extract management information from first byte that carries management information of the GCC0 of the OTUk Frame that receives, and/or extract control information from second byte that carries control information of the GCC0 of OTUk Frame.
Do not support the intelligent net element function if there is one in the port of the responsible communication of two nodes, then the 4th judge module determines not exist between two nodes the control channel of control information transmission, can also comprise the 3rd extraction module in the network element as shown in figure 10, the 3rd extraction module is connected with the 4th judge module 51 respectively with second receiver module 52, extract management information from two bytes that carry management information of the GCC0 of OTUk Frame.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement, but the former is better execution mode under a lot of situation by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1, information transferring method in a kind of optical transfer network is characterized in that, comprising:
Judge the type of the information that desire sends, if the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Transmission has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information.
2, information transferring method in a kind of optical transfer network is characterized in that, comprising:
The Optical Channel Transport Unit-k Frame of management information and/or control information has been carried in reception;
Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
3, information transferring method in a kind of optical transfer network is characterized in that, comprising:
Judge whether the port of being responsible for communicating by letter in two nodes of mutual communication all supports the intelligent net element function, if the port of the responsible communication of described two nodes is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission;
Judge the type of the information that desire sends, if the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Transmission has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information.
4, information transferring method in the optical transfer network according to claim 3 is characterized in that, also comprises:
Do not support the intelligent net element function if there is one in the port of the responsible communication of described two nodes, then determine not exist between described two nodes the control channel of control information transmission;
The management information that desire is sent embeds in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
The Optical Channel Transport Unit-k Frame that transmission has embedded management information and/or control information is specially: send the Optical Channel Transport Unit-k Frame that has embedded management information.
5, information transferring method in a kind of optical transfer network is characterized in that, comprising:
Judge whether the port of being responsible for communicating by letter in two nodes of mutual communication all supports the intelligent net element function, if the port of the responsible communication of described two nodes is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission;
The Optical Channel Transport Unit-k Frame of management information and/or control information has been carried in reception;
Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
6, information transferring method in the optical transfer network according to claim 5 is characterized in that, also comprises:
Do not support the intelligent net element function if there is one in the port of the responsible communication of described two nodes, then determine not exist between described two nodes the control channel of control information transmission;
The Optical Channel Transport Unit-k Frame that management information and/or control information have been carried in reception is specially: receive and carried the Optical Channel Transport Unit-k Frame of management information;
Extract management information from two bytes that carry management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame.
7, the network element in a kind of optical transfer network is characterized in that, comprising:
First judge module is used to judge the type of the information that desire sends;
Merge module, be connected with described first judge module, be used for when the information of desire transmission comprises management information and/or control information, the management information that desire is sent is embedded into first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame;
Sending module is connected with described merge module, is used to send the Optical Channel Transport Unit-k Frame that has embedded management information and/or control information.
8, the network element in a kind of optical transfer network is characterized in that, comprising:
Receiver module is used to receive the Optical Channel Transport Unit-k Frame that has carried management information and/or control information;
Extraction module, be connected with described receiver module, be used for from the first byte extract management information that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
9, the network element in a kind of optical transfer network is characterized in that, comprising:
First judge module is used to judge the type of the information that desire sends and output judged result;
Second judge module is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function, and the output judged result;
First merge module, be connected with described second judge module with described first judge module respectively, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter is all supported the intelligent net element function, then determine to exist between described two nodes the control channel of control information transmission, and the judged result according to described first judge module output is that the information that desire sends comprises management information and/or control information, then the management information that desire is sent embeds first byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and/or the control information that desire sends is embedded second byte in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame; And output has embedded the Optical Channel Transport Unit-k Frame of management information and/or control information;
Sending module is connected with described first merge module, is used to send the Optical Channel Transport Unit-k Frame that has embedded management information and/or control information.
10, the network element in the optical transfer network according to claim 9 is characterized in that, also comprises:
Second merge module, respectively with described first judge module, described second judge module is connected with described sending module, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter has at least one not support the intelligent net element function, determine not exist between described two nodes the control channel of control information transmission, and the judged result according to described first judge module output is that the information that desire sends comprises management information, the management information that desire is sent embeds in two bytes of General Purpose Communication Channel 0 of Optical Channel Transport Unit-k Frame, and the Optical Channel Transport Unit-k Frame that will embed management information sends to described sending module.
11, the network element in a kind of optical transfer network is characterized in that, comprising:
Second judge module is used for judging whether the responsible port of communicating by letter of two nodes of mutual communication all supports the intelligent net element function, and the output judged result;
Receiver module is used to receive the Optical Channel Transport Unit-k Frame that has carried management information and/or control information;
First extraction module, be connected with described receiver module with described second judge module respectively, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter is all supported the intelligent net element function, determines to exist between described two nodes the control channel of control information transmission; Extract management information from first byte that carries management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, and/or from second byte that carries control information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame, extract control information.
12, the network element in the optical transfer network according to claim 11 is characterized in that, also comprises:
Second extraction module, be connected with described receiver module with described second judge module respectively, the judged result that is used for according to described second judge module output is that the port that described two nodes are responsible for communicating by letter has at least one not support the intelligent net element function, determines not exist between described two nodes the control channel of control information transmission; Extract management information from two bytes that carry management information of the General Purpose Communication Channel 0 of described Optical Channel Transport Unit-k Frame.
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| CN200810223806A CN101686420A (en) | 2008-09-28 | 2008-09-28 | Information transmission method in an optical transport network and network elements |
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| CN200810223806A CN101686420A (en) | 2008-09-28 | 2008-09-28 | Information transmission method in an optical transport network and network elements |
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| CN101686420A true CN101686420A (en) | 2010-03-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951532A (en) * | 2010-09-07 | 2011-01-19 | 华为技术有限公司 | Transmission and acquirement method, device and system of OTN (Optical Transport Network) network business defect information |
| WO2013067796A1 (en) * | 2011-11-10 | 2013-05-16 | 中兴通讯股份有限公司 | Method, device and system for realizing multichannel parallel interface adaptation |
| CN108134646A (en) * | 2016-12-01 | 2018-06-08 | 深圳市中兴微电子技术有限公司 | The transmission method and device of a kind of optical transmission unit frame |
| CN108449660A (en) * | 2018-06-25 | 2018-08-24 | 北京华麒通信科技有限公司 | A kind of PON system |
| CN111327970A (en) * | 2018-12-13 | 2020-06-23 | 中国电信股份有限公司 | Passive optical network management channel, establishment method and system, sending end and receiving end |
| CN112491569A (en) * | 2019-09-11 | 2021-03-12 | 中国移动通信有限公司研究院 | Equipment management method, device, equipment and computer readable storage medium |
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- 2008-09-28 CN CN200810223806A patent/CN101686420A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951532A (en) * | 2010-09-07 | 2011-01-19 | 华为技术有限公司 | Transmission and acquirement method, device and system of OTN (Optical Transport Network) network business defect information |
| CN101951532B (en) * | 2010-09-07 | 2013-06-12 | 华为技术有限公司 | Transmission and acquirement method, device and system of OTN (Optical Transport Network) network business defect information |
| WO2013067796A1 (en) * | 2011-11-10 | 2013-05-16 | 中兴通讯股份有限公司 | Method, device and system for realizing multichannel parallel interface adaptation |
| CN108134646A (en) * | 2016-12-01 | 2018-06-08 | 深圳市中兴微电子技术有限公司 | The transmission method and device of a kind of optical transmission unit frame |
| CN108134646B (en) * | 2016-12-01 | 2019-10-18 | 深圳市中兴微电子技术有限公司 | A kind of transmission method and device of optical transmission unit frame |
| CN108449660A (en) * | 2018-06-25 | 2018-08-24 | 北京华麒通信科技有限公司 | A kind of PON system |
| CN111327970A (en) * | 2018-12-13 | 2020-06-23 | 中国电信股份有限公司 | Passive optical network management channel, establishment method and system, sending end and receiving end |
| CN112491569A (en) * | 2019-09-11 | 2021-03-12 | 中国移动通信有限公司研究院 | Equipment management method, device, equipment and computer readable storage medium |
| CN112491569B (en) * | 2019-09-11 | 2022-04-29 | 中国移动通信有限公司研究院 | Equipment management method, device, equipment and computer readable storage medium |
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