CN104852809A - Method and system for processing SD (signal degradation) fault - Google Patents
Method and system for processing SD (signal degradation) fault Download PDFInfo
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- CN104852809A CN104852809A CN201410052542.3A CN201410052542A CN104852809A CN 104852809 A CN104852809 A CN 104852809A CN 201410052542 A CN201410052542 A CN 201410052542A CN 104852809 A CN104852809 A CN 104852809A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04J3/00—Time-division multiplex systems
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- H04J3/14—Monitoring arrangements
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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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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Abstract
The invention discloses a method and system for processing an SD (signal degradation) fault. The method comprises the steps: a first node determines that the SD fault happens to a link between the first node and a second node; the first node generates one or more first SD fault warning messages according to the state information of the SD fault happening to the link; the first node enables each first SD fault warning message to be transmitted to the corresponding terminal node, wherein each first SD fault warning message is used for the corresponding terminal node to determine the SD fault happening to the link according to the identification information, in the first SD fault warning message, of one or more LSPs, and/or the first node triggers the LSP where the terminal node is located to execute the switching operation of a main/standby path. According to the technical scheme of the invention, the method and system can save the cost of AIS warning transmission and processing, and preventing the reconstruction of an additional LSP on the link.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of processing method and system of Signal Degrade fault.
Background technology
At present, for alarm indication signal (Alarm Indication Signal in correlation technique, referred to as AIS) alarm function is mainly used in Packet Transport Network (Packet Transport Network, referred to as PTN), optical transfer network (Optical TransportNetwork, referred to as OTN) etc. transmits on the network equipment.To be broken down to link layer by link layer two ends nodal test and (can comprise: Signal Degrade (Signal Degrade, referred to as SD), Signal Fail (Signal Failure, referred to as SF)) time, then by two end nodes of faulty link layer by client layer label switched path (Label Switch Path thereon, referred to as LSP) or multiplex section passage slotting ais alarm information up and down, be advertised to two end nodes on client layer LSP or multiplex section passage, to suppress upper two end nodes of client LSP to report to webmaster connect loss (Loss Of Connection, referred to as LOC) or dropout (Loss Of Signal, referred to as LOS) alarm.In addition, also can detect this path by SD Performance Detection mode on end-to-end path and whether there is SD fault, but the defect of this kind of technical scheme is: need to carry out loss on each LSP and measure (Loss Measurement, referred to as LM) or delay measurements (Delay Measurement, referred to as DM) etc. Performance Detection and operation, its implementation procedure is comparatively complicated.In addition, existing multiprotocol label switching transmits in application (MPLS-TP) ais alarm scheme, need all lower slotting ais alarm message on each client layer LSP on its link layer, then can produce a large amount of ais alarm messages, the AIS processing expenditure and the bandwidth resources that thereby increase equipment transmit expense.
And for the IP/MPLS network equipment of current wireless Access Network IPization (IP RAN), the detection of its link failure mainly detects SF fault by two-way converting detection (BFD) is machine-processed end to end, or, on IP layer, IP performance measurement (Performance Measurement, referred to as PM) is taked to be detected SD performance.And for IP/MPLS LSP or tunnel, also lack end-to-end SD fault detect and notifying mechanism.
Summary of the invention
The invention provides a kind of processing method and system of Signal Degrade fault, at least to solve in correlation technique the problem lacking SD fault detect and the mode of notice on IP/MPLS network end-to-end LSP.
According to an aspect of the present invention, a kind of processing method of Signal Degrade fault is provided.
Processing method according to the Signal Degrade fault of the embodiment of the present invention comprises: first node determines that the link between this first node and Section Point exists Signal Degrade (SD) fault, wherein, first node and Section Point are the adjacent both ends node of the common link of many label switched paths (LSP) process; First node generates an one or more SD fault warning infomational message according to the state information that SD fault occurs on link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively; Each SD fault warning infomational message is sent to corresponding end node by first node respectively, wherein, each SD fault warning infomational message is determined SD fault occurs on link according to the identification information of one or more LSP carried in a SD fault warning infomational message for corresponding end node, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
Preferably, there is SD fault and comprise one of following in first node determination link: first node detects that link exists SD fault; First node receive Section Point by be added in preset protocol there is the state information of SD fault in link after the notice that occurs.
Preferably, first node generates an one or more SD fault warning infomational message and comprises: first node is after SD fault being detected, be packaged into IP message or UDP message by Internet protocol (IP) and User Datagram Protocol (UDP) packaged type by unified for the identification information with one or more LSP of identical destination node, generate an one or more SD fault warning infomational message; The type of the one or more SD fault warning infomational message of UDP port number mark that first node adopts in IP message or UDP message is SD warning information type.
Preferably, after each SD fault warning infomational message is sent to corresponding end node by first node respectively, also comprise: by UDP port number, corresponding end node determines that the type of message received is a SD fault warning infomational message; Corresponding end node triggers the handover operation of the one or more LSP execution active-standby path at this end node place according to the identification information of one or more LSP carried in the SD fault warning infomational message received.
Preferably, after each SD fault warning infomational message is sent to corresponding end node by first node, also comprise: corresponding end node reception comes from the two SD fault warning infomational message corresponding with this end node of Section Point; The SD fault warning infomational message that corresponding end node feed back according to first node and the 2nd SD fault warning infomational message that Section Point feeds back are determined SD fault occurs on link.
According to a further aspect in the invention, a kind for the treatment of system of Signal Degrade fault is provided.
Treatment system according to the Signal Degrade fault of the embodiment of the present invention comprises: first node; First node comprises: the first determination module, and for determining that the link between this first node and Section Point exists SD fault, wherein, first node and Section Point are the adjacent both ends node of the common link of many LSP processes; Generation module, for generating an one or more SD fault warning infomational message according to the state information that SD fault occurs on link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively; Sending module, for each SD fault warning infomational message being sent to respectively corresponding end node, wherein, each SD fault warning infomational message is determined SD fault occurs on link according to the identification information of one or more LSP carried in a SD fault warning infomational message for corresponding end node, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
Preferably, the first determination module comprises: detecting unit, there is SD fault for detecting on link; Receiving element, for receive Section Point by be added in preset protocol there is the state information of SD fault in link after the notice that occurs.
Preferably, generation module comprises: encapsulation unit, for after SD fault being detected, be packaged into IP message or UDP message by IP and UDP packaged type by unified for the identification information with one or more LSP of identical destination node, generate an one or more SD fault warning infomational message; Identify unit is SD warning information type for the type adopting the UDP port number in IP message or UDP message to identify an one or more SD fault warning infomational message.
Preferably, said system also comprises: multiple end node; Each end node includes: the second determination module, and the type of message for determining to receive by UDP port number is a SD fault warning infomational message; Executive Module, one or more LSP for triggering this end node place according to the identification information of one or more LSP carried in the SD fault warning infomational message received performs the handover operation of active-standby path.
Preferably, each end node all also comprises: receiver module, for receiving the two SD fault warning infomational message corresponding with this end node coming from Section Point; 3rd determination module, the 2nd SD fault warning infomational message for the SD fault warning infomational message that feeds back according to first node and Section Point feedback is determined SD fault occurs on link.
Pass through the embodiment of the present invention, in the adjacent both ends node of the common link of many LSP processes, when there is SD fault in the link that a wherein end node is determined between itself and peer node, wherein an end node can generate one or more SD fault warning infomational message according to the state information that SD fault occurs on link, carries the identification information of one or more LSP at end node place corresponding with a SD fault warning infomational message in each end node at many articles of LSP in each SD fault warning infomational message respectively, then, wherein each SD fault warning infomational message is sent to corresponding end node by an end node respectively, then, corresponding end node can be determined SD fault occurs on link according to the identification information of one or more LSP carried in SD fault warning infomational message, and/or, the LSP triggering this end node place performs the handover operation of active-standby path, solve in correlation technique the problem lacking SD fault detect and the mode of notice on IP/MPLS network end-to-end LSP thus, and then SD alarm announcement function can be realized on IP/MPLS network, and, for the ais alarm function of MPLS-TP, ais alarm transmission and processing expenditure can be saved, avoid re-establishing extra LSP on the link.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the processing method of Signal Degrade fault according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of AIS message format according to the preferred embodiment of the invention;
Fig. 3 is the schematic diagram of Tunnel Information TLV message structure according to the preferred embodiment of the invention;
Fig. 4 is the schematic diagram of END TLV message structure according to the preferred embodiment of the invention;
Fig. 5 is the flow chart of SD fault notification and location according to the preferred embodiment of the invention;
Fig. 6 is the schematic diagram of IP RAN transfer path according to the preferred embodiment of the invention;
Fig. 7 is the schematic diagram of IP RAN fault notification according to the preferred embodiment of the invention;
Fig. 8 is the structured flowchart of the treatment system of Signal Degrade fault according to the embodiment of the present invention;
Fig. 9 is the structured flowchart of the treatment system of Signal Degrade fault according to the preferred embodiment of the invention;
Figure 10 is the structural representation of SD fault notification and navigation system according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 is the flow chart of the processing method of Signal Degrade fault according to the embodiment of the present invention.As shown in Figure 1, the method can comprise following treatment step:
Step S102: first node determines that the link between this first node and Section Point exists SD fault, wherein, first node and Section Point are the adjacent both ends node of the common link of many LSP processes;
Step S104: first node generates an one or more SD fault warning infomational message according to the state information that SD fault occurs on link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively;
Step S106: each SD fault warning infomational message is sent to corresponding end node by first node respectively, wherein, each SD fault warning infomational message is determined SD fault occurs on link for corresponding end node, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
In correlation technique, IP/MPLS network end-to-end LSP lacks SD fault detect and notice mode.Adopt method as shown in Figure 1, in the adjacent both ends node of the common link of many LSP processes, when there is SD fault in the link that a wherein end node is determined between itself and peer node, wherein an end node can generate one or more SD fault warning infomational message according to the state information that SD fault occurs on link, carries the identification information of one or more LSP at end node place corresponding with a SD fault warning infomational message in each end node at many articles of LSP in each SD fault warning infomational message respectively, then, wherein each SD fault warning infomational message is sent to corresponding end node by an end node respectively, then, corresponding end node can be determined SD fault occurs on link according to the identification information of one or more LSP carried in SD fault warning infomational message, and/or, the LSP triggering this end node place performs the handover operation of active-standby path, solve in correlation technique the problem lacking SD fault detect and the mode of notice on IP/MPLS network end-to-end LSP thus, and then SD alarm announcement function can be realized on IP/MPLS network, and, for the ais alarm function of MPLS-TP, ais alarm transmission and processing expenditure can be saved, avoid re-establishing extra LSP on the link.
Preferably, in step s 102, there is SD fault and can include but not limited to one of under type in first node determination link:
There is SD fault in mode one, first node detect (such as: detected by operation management maintain (OAM) mechanism) link;
Mode two, first node receive Section Point by be added in preset protocol (such as: the Link Layer Discovery Protocol (LLDP) of expansion) there is the state information of SD fault in link after the notice that occurs.
In a preferred embodiment, link nodes by link layer OAM mechanism (such as: Cyclical Redundancy Check (CRC), connect fault management (CFM), test pattern selects the error detection mechanism such as (TMS)) detect this link and whether there is SD fault.If SD fault detected, then by IP and UDP packaged type, unified being encapsulated in IP/UDP message in multiple LSP path or tunnel id information through this link with identical destination node is gone, and adopt specific UDP destination interface to identify SD fault warning message.Such as, encapsulated by AIS message, Fig. 2 is the schematic diagram of AIS message format according to the preferred embodiment of the invention.As shown in Figure 2, tunnel (Tunnel) label length value (TLV) head (Header) is Optional Field.Fig. 3 is the schematic diagram of tunnel information (Tunnel Information) TLV message structure according to the preferred embodiment of the invention.Fig. 4 is the schematic diagram of END TLV message structure according to the preferred embodiment of the invention.As shown in Figure 3 and Figure 4, END TLV is mainly used to indicate Tunnel TLV to terminate mark.And when only having single-ended nodal test to fault, then need this end node to send notice to peer node, so that peer node knows the SD fault status information in its respective links by expansion LLDP agreement middle port SD state information.
Preferably, in step S104, first node generates an one or more SD fault warning infomational message can comprise following operation:
Step S1: first node is after SD fault being detected, be packaged into IP message or UDP message by Internet protocol (IP) and User Datagram Protocol (UDP) packaged type by unified for the identification information with one or more LSP of identical destination node, generate an one or more SD fault warning infomational message;
Step S2: the type of the one or more SD fault warning infomational message of UDP port number mark that first node adopts in IP message or UDP message is SD warning information type.
Preferably, in step S106, first node can also comprise the following steps after each SD fault warning infomational message being sent to respectively corresponding end node:
Step S3: by UDP port number, corresponding end node determines that the type of message received is a SD fault warning infomational message;
Step S4: corresponding end node triggers the handover operation of the one or more LSP execution active-standby path at this end node place according to the identification information of one or more LSP carried in the SD fault warning infomational message received.
In a preferred embodiment, active detecting to or be advertised SD fault node after generation SD warning message, SD warning message can be sent to end node on LSP that this end link transmits by IP and UDP packaged type.The upper end node of LSP is after receiving the SD fault warning information encapsulated by IP and UDP mode, can judge that it is SD fault warning message by UDP port number, then judge SD likelihood of failure appears in which LSP or Tunnel on this node according to the LSP ID encapsulated in message or Tunnel id information, thus trigger corresponding LSP or Tunnel and carry out active-standby switch.
Preferably, in step S106, first node can also comprise following operation after each SD fault warning infomational message being sent to corresponding end node:
Step S5: corresponding end node reception comes from the two SD fault warning infomational message corresponding with this end node of Section Point;
Step S6: the SD fault warning infomational message that corresponding end node feed back according to first node and the 2nd SD fault warning infomational message that Section Point feeds back are determined SD fault occurs on link.
In a preferred embodiment, active detecting to or be advertised SD fault node after generation SD warning message, SD warning message can be sent to end node on LSP that this end link transmits by IP and UDP packaged type.The upper end node of LSP is after receiving the SD fault warning information encapsulated by IP and UDP mode, can judge that it is SD fault warning message by UDP port number, then judge SD likelihood of failure appears in which LSP or Tunnel on this node according to the LSP ID encapsulated in message or Tunnel id information, thus judge the position of SD faulty link according to the SD fault warning infomational message that node on SD faulty link feeds back.
As a preferred embodiment of the present invention, Fig. 5 is the flow chart of SD fault notification and location according to the preferred embodiment of the invention.As shown in Figure 5, this flow process can comprise following treatment step:
Step S502: link nodes carries out SD fault detect by link layer OAM mechanism (such as: the error detection mechanism such as CRC, CFM and TMS);
Step S504: link nodes judges whether this link exists SD fault; If existed, then continue to perform step S506; If not, then return step S502, proceed SD fault detect;
Step S506: when only having single-ended nodal test to fault, then need this end node to send notice to peer node, so that peer node knows the SD fault status information in its respective links by expansion LLDP agreement middle port SD state information;
Step S508: link nodes is encapsulated in IP/UDP message by IP and UDP packaged type by unified to multiple LSP path or tunnel id information through this link with identical destination node;
Step S510: link nodes adopts specific UDP destination interface to identify SD fault warning message; Link nodes active detecting to or be advertised SD fault node after generation SD warning message, SD warning message can be sent to end node on LSP that this end link transmits by IP and UDP packaged type;
On step S512:LSP, end node is after receiving the SD fault warning information encapsulated by IP and UDP mode, can judge that it is SD fault warning message by UDP port number, then judge SD likelihood of failure appears in which LSP or Tunnel on this node according to the LSP ID encapsulated in message or Tunnel id information, thus trigger corresponding LSP or Tunnel and carry out active-standby switch;
On step S514:LSP, the position of SD faulty link judged by end node according to the SD fault warning infomational message that node on SD faulty link feeds back.
For IP RAN transfer path, the implementation process that SD alarm is noticed is further described below.
Fig. 6 is the schematic diagram of IP RAN transfer path according to the preferred embodiment of the invention.Fig. 7 is the schematic diagram of IP RAN fault notification according to the preferred embodiment of the invention.As shown in Figure 6 and Figure 7, if there are two LSP on IP RAN network, it is respectively LSP1(A-C-D-E) and LSP2(B-C-D-E).After by one of mode in CRC, TMS and CFM of link layer, C or D node detects that this link exists Signal Degrade (SD), notice can be sent to opposite end adjacent node by expansion LLDP SD port status, such as: D detects that C-D place port exists fault, be then advertised to opposite end C node by LLDP message and SD fault detected; On the contrary, when C detects that D-C link exists fault, notice can be sent to peer node D equally.
When fault phase neighbors self detection or after opposite end adjacent node advertise link is existed SD fault, generate ais alarm infomational message, namely C will produce following three kinds of SD ais failure messages: one, carry LSP1 information and be sent to A node by IP and UDP packaged type in SD ais failure warning message; Two, in SD AIS message, carry LSP2 information and be sent to B node by IP and UDP packaged type, meanwhile, also generate the SD AIS message of a kind of LSP1 of carrying and LSP2 information and be sent to E node; D equally also can produce above-mentioned three kinds of AIS messages and by IP and UDP packaged type, then be sent to A, B, E end node respectively.
When end node A, B, E on LSP1 and LSP2 receive the SD ais alarm message that SD both link ends node C and D send over, can be analyzed this for SD ais alarm message according to UDP port number, and judge further which LSP of this node or tunnel there will be the possibility of SD and occur the position of SD link according to LSP id information entrained in SD ais alarm message.Such as: A node receives C and D and sends over ais alarm message, the information that can feed back according to AIS is on the one hand judged currently to occur that SD abort situation is on C-D link; Can also judge that according to the LSP id information in ais alarm message SD fault may appear in current LSP1 on the other hand; And for B, then can judge that LSP2 there will be SD fault; And for E node, then can judge that SD fault all likely appears in LSP1 and LSP2.
When after the ais alarm message that end node A, B, E on LSP send at two end node C and D receiving middle SD link, LSP1 and the LSP2 path that SD fault may occur is triggered to the handover operation of active-standby path.
Fig. 8 is the structured flowchart of the treatment system of Signal Degrade fault according to the embodiment of the present invention.As shown in Figure 8, the treatment system of this Signal Degrade fault can comprise: first node 10; First node 10 can comprise: the first determination module 100, and for determining that the link between this first node and Section Point exists SD fault, wherein, first node and Section Point are the adjacent both ends node of the common link of many LSP processes; Generation module 102, for generating an one or more SD fault warning infomational message according to the state information that SD fault occurs on link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively; Sending module 104, for each SD fault warning infomational message being sent to respectively corresponding end node, wherein, each SD fault warning infomational message is determined SD fault occurs on link according to the identification information of one or more LSP carried in a SD fault warning infomational message for corresponding end node, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
Adopt system as shown in Figure 8, solve in correlation technique the problem lacking SD fault detect and the mode of notice on IP/MPLS network end-to-end LSP, and then SD alarm announcement function can be realized on IP/MPLS network, and, for the ais alarm function of MPLS-TP, ais alarm transmission and processing expenditure can be saved, avoid re-establishing extra LSP on the link.
Preferably, the first determination module 100 can comprise: detecting unit (not shown), there is SD fault for detecting on link; Receiving element (not shown), for receive Section Point by be added in preset protocol there is the state information of SD fault in link after the notice that occurs.
Preferably, generation module 102 can comprise: encapsulation unit (not shown), for after SD fault being detected, be packaged into IP message or UDP message by IP and UDP packaged type by unified for the identification information with one or more LSP of identical destination node, generate an one or more SD fault warning infomational message; Identify unit (not shown) is SD warning information type for the type adopting the UDP port number in IP message or UDP message to identify an one or more SD fault warning infomational message.
Preferably, as shown in Figure 9, said system can also comprise: multiple end node 20; Each end node 20 all can comprise: the second determination module 200, and the type of message for determining to receive by UDP port number is a SD fault warning infomational message; Executive Module 202, one or more LSP for triggering this end node place according to the identification information of one or more LSP carried in the SD fault warning infomational message received performs the handover operation of active-standby path.
Preferably, as shown in Figure 9, each end node 20 all can also comprise: receiver module 204, for receiving the two SD fault warning infomational message corresponding with this end node coming from Section Point; 3rd determination module 206, the 2nd SD fault warning infomational message for the SD fault warning infomational message that feeds back according to first node and Section Point feedback is determined SD fault occurs on link.
Below in conjunction with the preferred implementation shown in Figure 10, above-mentioned preferred implementation process is further described.
Figure 10 is the structural representation of SD fault notification and navigation system according to the preferred embodiment of the invention.As indicated by 10, this SD fault notification and navigation system can comprise: end node on link nodes and client layer LSP, wherein, link nodes can comprise: announcement module, package module and delivery module, and application module is then present in end node on client layer LSP.In the preferred embodiment, the function of modules is as follows:
Announcement module (being equivalent to above-mentioned first determination module), is mainly used in unidirectionally SD fault message being detected, and by increasing port SD state information in Link Layer Discovery Protocol (LLDP), upstream nodes notices SD fault status information.
Package module (being equivalent to above-mentioned generation module), be mainly used in after link layer detects SD fault (such as: the error detection mechanism such as CRC, CFM and TMS), by having identical destination node, identifying (ID) Information encapsulation in same IP/UDP message by multiple client layer LSP of link SD fault effects, then adopt specific UDP port number to identify this SD warning information type.
Delivery module (being equivalent to above-mentioned sending module), is mainly used on node link layer SD fault being detected, to be sent on corresponding client layer LSP on end node by IP and UDP by the SD fault message after encapsulation process in IP mode.
Application module (being equivalent to above-mentioned Executive Module and the 3rd determination module), is mainly used in when receiving SD fault warning information, according to the LSP by this fault effects, can trigger the location of LSP active-standby switch or abort situation.
From above description, can find out, above embodiments enable following technique effect (it should be noted that these effects are effects that some preferred embodiment can reach): the technical scheme that the embodiment of the present invention provides relates to operation management maintain (OAM) field of traffic engineering (te) network, mainly when adopting link layer to detect SD fault message, by IP and User Datagram Protocol (UDP) mode SD Signal Degrade information can be sent to two end nodes on the client LSP that transmits on this service link, to complete the location of SD abort situation and the active-standby switch of corresponding LSP, thus realize SD fault location and announcement function on IP/MPLS network LSP, can also effectively avoid sending produced AIS Message processing in a large number due to AIS and transmitting expense.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a processing method for Signal Degrade fault, is characterized in that, comprising:
First node determines that the link between this first node and Section Point exists Signal Degrade SD fault, and wherein, described first node and described Section Point are the adjacent both ends node of the common link of many label switched path LSP processes;
Described first node generates an one or more SD fault warning infomational message according to the state information that described SD fault occurs on said link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively;
Each SD fault warning infomational message is sent to corresponding end node by described first node respectively, wherein, the end node that each SD fault warning infomational message is used for described correspondence is determined SD fault occurs on said link according to the identification information of described one or more LSP carried in a SD fault warning infomational message, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
2. method according to claim 1, is characterized in that, described first node determines that described link exists described SD fault and comprises one of following:
Described first node detects that described link exists described SD fault;
Described first node receive described Section Point by add in preset protocol there is the state information of described SD fault on said link after the notice that occurs.
3. method according to claim 1, is characterized in that, described first node generates a described one or more SD fault warning infomational message and comprises:
Described first node is after described SD fault being detected, be packaged into IP message and UDP message by Internet protocol IP and user datagram protocol UDP packaged type by unified for the identification information with one or more LSP of identical destination node, generate a described one or more SD fault warning infomational message;
The type that described first node adopts the UDP port number in described IP message and described UDP message to identify described SD fault warning infomational message is SD warning information type.
4. method according to claim 3, is characterized in that, after each SD fault warning infomational message is sent to the end node of described correspondence by described first node respectively, also comprises:
By described UDP port number, the end node of described correspondence determines that the type of message received is SD fault warning infomational message;
Described each end node according to described in the identification information of described one or more LSP that carries in the SD fault warning infomational message that receives one or more LSP that triggers this end node place perform the handover operation of active-standby path.
5. the method according to claim 3 or 4, is characterized in that, after each SD fault warning infomational message is sent to the end node of described correspondence by described first node, also comprises:
The end node reception of described correspondence comes from the two SD fault warning infomational message corresponding with this end node of described Section Point;
2nd SD fault warning infomational message of the SD fault warning infomational message that the end node of described correspondence feeds back according to described first node and described Section Point feedback is determined SD fault occurs on said link.
6. a treatment system for Signal Degrade fault, is characterized in that, comprising: first node;
Described first node comprises:
First determination module, for determining that the link between this first node and Section Point exists Signal Degrade SD fault, wherein, described first node and described Section Point are the adjacent both ends node of the common link of many label switched path LSP processes;
Generation module, for generating an one or more SD fault warning infomational message according to the state information that described SD fault occurs on said link, wherein, the identification information of one or more LSP at the end node place corresponding with a SD fault warning infomational message is carried in each SD fault warning infomational message respectively;
Sending module, for each SD fault warning infomational message being sent to respectively corresponding end node, wherein, the end node that each SD fault warning infomational message is used for described correspondence is determined SD fault occurs on said link according to the identification information of described one or more LSP carried in a SD fault warning infomational message, and/or one or more LSP triggering this end node place performs the handover operation of active-standby path.
7. system according to claim 6, is characterized in that, described first determination module comprises:
, there is described SD fault for detecting on described link in detecting unit;
Receiving element, for receive described Section Point by add in preset protocol there is the state information of described SD fault on said link after the notice that occurs.
8. system according to claim 6, is characterized in that, described generation module comprises:
Encapsulation unit, for after described SD fault being detected, be packaged into IP message or UDP message by Internet protocol IP and user datagram protocol UDP packaged type by unified for the identification information with one or more LSP of identical destination node, generate a described one or more SD fault warning infomational message;
Identify unit, the type for adopting the UDP port number in described IP message or described UDP message to identify described SD fault warning infomational message is SD warning information type.
9. system according to claim 8, is characterized in that, described system also comprises: multiple end node;
Each end node includes:
Second determination module, the type of message for determining to receive by described UDP port number is SD fault warning infomational message;
Executive Module, one or more LSP that the identification information for described one or more LSP carried in the SD fault warning infomational message that receives described in basis triggers this end node place performs the handover operation of active-standby path.
10. system according to claim 9, is characterized in that, described each end node all also comprises:
Receiver module, for receiving the two SD fault warning infomational message corresponding with this end node coming from described Section Point;
3rd determination module, the 2nd SD fault warning infomational message for the SD fault warning infomational message that feeds back according to described first node and described Section Point feedback is determined SD fault occurs on said link.
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| CN201410052542.3A CN104852809B (en) | 2014-02-14 | 2014-02-14 | The processing method and system of Signal Degrade failure |
| PCT/CN2014/086546 WO2015120720A1 (en) | 2014-02-14 | 2014-09-15 | Signal degradation failure processing method and system |
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| CN201410052542.3A CN104852809B (en) | 2014-02-14 | 2014-02-14 | The processing method and system of Signal Degrade failure |
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| CN115987754A (en) * | 2018-06-08 | 2023-04-18 | 华为技术有限公司 | Network communication method and device |
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| WO2015120720A1 (en) | 2015-08-20 |
| CN104852809B (en) | 2019-04-23 |
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