CN102215127A - Signal degrade processing method, device and node equipment - Google Patents
Signal degrade processing method, device and node equipment Download PDFInfo
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- CN102215127A CN102215127A CN2011101525319A CN201110152531A CN102215127A CN 102215127 A CN102215127 A CN 102215127A CN 2011101525319 A CN2011101525319 A CN 2011101525319A CN 201110152531 A CN201110152531 A CN 201110152531A CN 102215127 A CN102215127 A CN 102215127A
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
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Abstract
The embodiment of the invention provides a signal degradation processing method, device and node equipment. The method specifically comprises the following steps: when a processing module determines that a node generates a signal degradation alarm, respectively carrying out signal degradation processing on different types of signal degradation alarms according to a degraded alarm type; if the type is an FEI (Forward Error Information) alarm, generating an interface alarm, and finishing the processing flow; and if the type is an SD (Signal Degradation) alarm, switching a tunnel so as to process the signal degradation when the signal degradation is generated in a node.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of Signal Degrade processing method, device and node device.
Background technology
The elementary object that telecommunications transmits that the net development develops is the transmission cost that reduces information in the communication.Along with the expansion of grouping access bandwidth and the deployment of next generation network (NGN, Next Generation Networking), the time-derived channel transmission has been difficult to satisfy this elementary object.In order to satisfy the demand that information transmits, connection-oriented grouping tranmission techniques becomes the development trend that transmits net.
In the connection-oriented grouping tranmission techniques, transmit multiprotocol label switching (T-MPLS, Transmission-Multi-Protocol Label Switching) be (ITU-T of International Telecommunications Union, International Telecommunications Union-Telecommunication) standardized a kind of Packet Transport Network (PTN, Packet Transport Network) technology, it can solve conventional synchronous digital system (SDH, Synchronous Digital Hierarchy) problem of the inefficiency that exposes in the network environment based on packet switching is a kind of grouping tranmission techniques of main flow.The data forwarding face of T-MPLS network is multiprotocol label switching (MPLS; Multi-Protocol Label Switching) a subclass; transmit based on the T-MPLS label; it has removed IP-based nothing and has connected the forwarding characteristic; increase operation management maintain (OAM, Operation Administration and Maintenance) and protection restore funcitons end to end.And the T-MPLS network with ASON/general multiple protocols sign exchange agreement (ASON/GMPLS, Automatically Switched Optical Network/Generalized Multi-protocol Label Switching) as its control plane.
In the process of utilizing the T-MPLS network information of carrying out to transmit, at label switched path (LSP, Label Switching Path) packet loss is mainly caused by following two kinds of reasons in: a kind of is the congested packet loss that causes of node, another kind is the packet loss that the error code of circuit error code or intra-node interconnect bus causes, and is caused by the circuit error code.At the packet loss problem, abnormal signal (SF has been proposed, Signal Fail) detection concept and Signal Degrade (SD, Signal Degrade) detection concept, so-called abnormal signal is meant because the problem that does not receive packet in setting-up time that packet loss causes, so-called Signal Degrade is meant because the circuit error code causes packet loss, causes the problem of the error rate increase of circuit.
In the prior art, according to ITU-T Recommendation definition G.8114/Y.1373, at the abnormal signal detection concept, in case detect failure condition, comprise and lose that continuity, mistake are sneaked into, the Maintenance Entity end points (MEP of non-expectation, Maintenance Entity Point) and during the Maintenance Entity of non-expectation (MEG, Maintenance Entity Group) grade etc., MEP declaration entering signal abnormal conditions.The abnormal signal situation also can be declared by the terminal of server layer, thus announcement server/Ethernet (ETH, Ethernet) failure condition of the relevant server layer of adaption function (for example server MEP).But in the prior art, there is not related advisory to how carrying out the Signal Degrade declaration.
And according to ITU-T definition Y.1731, the MEP after the configuration (comprising server MEP) can send the frame that has Ethernet alarm indication signal function (ETH-AIS, Ethernet Alarm Indication Signal) information.When detecting the abnormal signal situation, this MEP can begin periodically to send the frame that has ETH-AIS information immediately on the client MEG grade of configuration, eliminates up to the abnormal signal situation.In case receive a frame that has ETH-AIS information, MEP promptly detects alarm indication signal (AIS, Alarm Indication Signal) situation, restrains the alarm that loses continuity (LOC) fault that all reciprocity MEP are associated with it.MEP detects under no AIS situation when losing continuity failure, will recover to produce the alarm that loses continuity failure.At the AIS message, to detect LOC, non-expectational cycle (Unexpected Period), receive the AIS frame, detect that mistake is sneaked into, non-expectation MEP (Unexpected MEP) and detect non-expectation MEG grade (Unexpected MEG Level) and made corresponding blocking-up or non-blocking-up operation, but in the prior art, operating at Signal Degrade how does not have related advisory yet.
Summary of the invention
The embodiment of the invention provides a kind of Signal Degrade processing method, device and node device, is used for solving prior art not at the problem of the respective handling of Signal Degrade.
A kind of Signal Degrade processing method, this method comprises:
Node device determines to produce the Signal Degrade alarm; And
Determine the type of the Signal Degrade alarm of this generation;
As if the described type of determining is error code announcement FEI alarm forward, and then node device generation interface is alarmed and finished this handling process, if the described type of determining is deterioration SD alarm, then node device carries out the tunnel switching.
A kind of Signal Degrade processing unit, this device comprises:
The alarm determination module is used for determining that the node device at described device place produces the Signal Degrade alarm;
The type determination module is used for the type of determining that this definite Signal Degrade of alarm determination module is alarmed;
Warning processing module, when being used for the described type determined at the type determination module for error code announcement FEI alarm forward, the node device of controlling described device place produces the interface alarm and finishes this handling process, when the described type of determining at the type determination module was alarmed for deterioration SD, the node device of then controlling described device place carried out the tunnel and switches.
A kind of node device, comprise the Signal Degrade processing unit, be used for when determining the alarm of node device generation Signal Degrade, determine the type of the Signal Degrade alarm of this generation, if the described type of determining is error code announcement FEI alarm forward, then control described node device generation interface alarm and finish this handling process,, then make described node device and carry out the tunnel switching if the described type of determining is deterioration SD alarm.
The scheme that provides according to the embodiment of the invention, when processing module determines to have produced in the node Signal Degrade alarm, can be according to the type of Signal Degrade alarm, dissimilar Signal Degrade alarm carrying out respectively Signal Degrades is handled,, then produced the interface alarm and finish this handling process if described type is the FEI alarm, if described type is the SD alarm, then carry out the tunnel and switch, thereby when in node, having produced Signal Degrade, realized processing at Signal Degrade.
Description of drawings
The Signal Degrade process flow schematic diagram that Fig. 1 provides for the embodiment of the invention one;
The Signal Degrade processing unit structural representation that Fig. 2 provides for the embodiment of the invention two;
Fig. 3 is a T-MPLS network model schematic diagram in the prior art;
The application scenarios network topological diagram of the Signal Degrade processing method that Fig. 4 provides for the embodiment of the invention one;
The Signal Degrade process flow schematic diagram that Fig. 5 provides for the embodiment of the invention three;
The Signal Degrade process flow schematic diagram that Fig. 6 provides for the embodiment of the invention four;
The node device structural representation that Fig. 7 provides for the embodiment of the invention five;
The node device structural representation that Fig. 8 provides for the embodiment of the invention six.
Embodiment
Below in conjunction with Figure of description and each embodiment technical solution of the present invention is described.Utilizing the T-MPLS technology to carry out in the information transfer process at prior art, do not having the problem at the associative operation of Signal Degrade, the embodiment of the invention provides a kind of processing method at Signal Degrade.
Embodiment one,
The embodiment of the invention one provides a kind of processing method of Signal Degrade, and as shown in Figure 1, the flow chart of steps for this method specifically comprises:
Step 001, node device determine to produce the Signal Degrade alarm.
Node device can determine to produce the Signal Degrade alarm in the following manner:
First kind, node device determine to produce the Signal Degrade alarm when section of striding Packet Error Ratio is higher than first set point under detecting self.
Second kind, node device received signal deterioration information, and determine to produce Signal Degrade according to the Signal Degrade information that receives and alarm.
Step 002, node device are determined the type of the Signal Degrade alarm of this generation.
Step 003, node device carry out Signal Degrade to be handled.
This step specifically comprises: if the described type of determining is the FEI alarm, then node device generation interface is alarmed and is finished this handling process, if the described type of determining is the SD alarm, then node device carries out the tunnel switching.
Embodiment two,
According to the method that the embodiment of the invention one provides, the embodiment of the invention two also provides a kind of Signal Degrade processing unit, is illustrated in figure 2 as the structural representation of described device, specifically comprises:
Whether the section of striding Packet Error Ratio was higher than first set point under detection sub-module 011 was used to judge the node device at described device place; When alarm determines that submodule 012 is used for that the section of striding Packet Error Ratio is higher than first set point under detection sub-module is judged described device place node, determine that the node device at described device place produces the Signal Degrade alarm.
Receive submodule 013 and be used for received signal deterioration information;
Alarm determines that submodule 012 can also be used for when the reception submodule receives Signal Degrade information, determines that according to the Signal Degrade information that receives the node device at described device place produces the Signal Degrade alarm.
According to prior art, the T-MPLS network model as shown in Figure 3, comprise application layer (Client Server), passage layers (TMC, T-MPLS Channel), channel layer (TMP, T-MPLS Path), section layer (TMS, T-MPLS Section) and interface layer (PHY MEDIA), corresponding with passage layers, channel layer, section layer and interface layer respectively, can comprise the TMC module in the node of T-MPLS network, TMP module, TMS module and interface module.Certainly,, also comprise end to end the OAM module of operating, manage, safeguarding in the described node, and described TMP module can comprise Tunnel submodule and Tunnel Group submodule according to the definition of T-MPLS.If when being non-head node in the tunnel of described node under it, do not comprise the TMC layer in this node, do not have the physical arrangements of TMC module yet.
The method that provides according to the embodiment of the invention one, after Signal Degrade produces, can by Signal Degrade information in the tunnel head node and interface layer, TMS layer, TMP layer and the TMC layer of non-head node in the mode that reports layer by layer, at TMS layer, TMP layer and TMC layer Signal Degrade is handled respectively.
Be illustrated in figure 4 as the application scenarios network topological diagram of the Signal Degrade processing method that the embodiment of the invention one provides, comprising switchable work tunnel and protection tunnel (Tunnel1 and Tunnel2), Tunnel1 and Tunnel2 are the bidirectional static tunnel.
Head node is different with the mode that non-head node carries out the Signal Degrade processing in the tunnel.As, after the section of striding between node among the Tunnel1 201 and the node 202 1 produces Signal Degrade, node 201 all can carry out Signal Degrade with node 202 to be handled, since node 201 and node 202 in Tunnel1 one be head node (node 201), one is non-head node (node 202), therefore, node 201 is different with the mode that node 202 carries out the Signal Degrade processing.Be example with node 201 (head node) with node 202 (non-head node) respectively below, the Signal Degrade processing method that the embodiment of the invention one is provided is elaborated.
Embodiment three,
The embodiment of the invention three provides a kind of Signal Degrade processing method, is example with the head node 201 of Tunnel among Fig. 4, and the steps flow chart of this method specifically comprises as shown in Figure 5:
In head node, described processing module can be TMS module, TMP module or TMC module.Be in the present embodiment, be integrated with the Signal Degrade processing unit that relates among the embodiment two at least one in TMS module, TMP module and TMC module.The function of the described processing module that relates in the present embodiment can be considered as the function of Signal Degrade processing unit.Described processing module can determine to have produced the Signal Degrade alarm in the following manner:
First kind, when the section of striding Packet Error Ratio is higher than first set point under the detection sub-module of processing module self configuration detects processing module place node, determine to have produced the Signal Degrade alarm.
Signal Degrade produces the former because packet loss that circuit (interface layer is as optical fiber, copper cable or wireless) error code causes, concerning through each bit in each tunnel of circuit, the possibility that error code takes place is impartial, is a kind of packet loss of approximate completely random.So, at the packet loss that the circuit error code causes, the error rate approximately equal of this section of striding in the error rate of the circuit of the section of a striding correspondence and the tunnel.If the average packet of circuit is long and the long approximately equalised words of the average packet in tunnel, the Packet Error Ratio approximately equal of this section of striding in the Packet Error Ratio of the circuit of the section of a striding correspondence and the tunnel.Therefore, at a node, can determine whether produced Signal Degrade by detecting under this node the Packet Error Ratio of the section of striding at this node.
For example, when between two nodes, passing through the connection of Ethernet physical port, at each net physical port too, can utilize Frame Check Sequence (FCS) detect this too the packet that receives of net physical port whether mistake has taken place, the FCS that preserves in the FCS that the packet that receives is calculated and this packet can determine that mistake has taken place this packet not simultaneously.At this moment, the Packet Error Ratio of the section of striding can come to determine by the following method:
The overall budget number that detected fcs error bag number/t0 received in the cycle in Packet Error Ratio=t0 cycle
Described fcs error bag number comprises fcs error frame, overlength frame number and too small frame number.The t0 cycle can be set at 1 second.In cycle, if Packet Error Ratio is higher than the ratio r 1 of setting, can set r1 is 1 at the t0 that sets
E-7, determine to have produced the Signal Degrade alarm.
Concrete, can when being higher than the ratio r 1 of setting, Packet Error Ratio be considered as producing the first lower alarm of alarm level, as the announcement of error code forward (FEI, Forward Errored Indication) alarm is higher than the ratio r 2 of setting at Packet Error Ratio, and can set r2 is 1
E-6, be considered as producing the second higher alarm of alarm level, as deterioration (SD, Signal Degrade) alarm, be the FEI alarm all among each following embodiment with first alarm, second alarm describes for example for the SD alarm.
In order to realize that the tunnel switches, can between any two adjacent nodes of Tunnel1 shown in Figure 2 and Tunnel2, detect fcs error bag number, thereby determine in each node whether Signal Degrade to have taken place.
When described proxy module is the TMP module, the TMP module can be with consumed work energy measurement (LM, Loss Measurement function) module is as detection sub-module, carrying too by this LM module, the statistical information of net physical port (comprises detected fcs error bag number in the t0 cycle, the overall budget number that t0 received in the cycle), and regularly obtain this statistical information and calculate, thereby determine in this node whether Signal Degrade to have taken place by TMP OAM submodule.
Second kind, processing module received signal deterioration information when processing module self does not have the configuration detection submodule, determine to have produced the Signal Degrade alarm according to the Signal Degrade information that receives.
Described Signal Degrade information can be carried in the FEI message.
The source of described Signal Degrade information can be in following three kinds of sources any one:
Mode one, described Signal Degrade information can be that the interface module of this processing module place node reports.Concrete, detection sub-module in being configured in interface module detects when the section of striding Packet Error Ratio is higher than second set point under the node of interface module place, interface module can be determined corresponding processing module according to the configuration information of self, and the processing module of determining that this Signal Degrade information is reported.As, when the processing module of the correspondence that disposes on the interface module is the TMS module, the TMS module of determining that this Signal Degrade information is reported then, when the processing module of the correspondence that disposes on the interface module is the TMP module, the TMP module of determining that this Signal Degrade information is reported then.
Mode two, described Signal Degrade information are after second processing module is determined the type of Signal Degrade alarm, self can't realize what the tunnel reported to first processing module when switching.
As, when TMS module (second processing module) can't realize that the tunnel switches, will send Signal Degrade information to TMP module (first processing module).
Mode three, described Signal Degrade information are to send after the OAM module receives the Signal Degrade information that non-head node sends in the tunnel, and described tunnel is the tunnel under the node of processing module place.
Because non-head node does not comprise the TMC layer in the tunnel, the physical arrangements that does not also comprise the TMC module, when the TMP module in the non-head node can't realize that the tunnel switches, the opposite direction head node that alarm takes place in the tunnel of OAM module under this non-head node in this non-head node of announcement is sent the Signal Degrade process information.Concrete, OAM module in this non-head node sends to OAM module in the described opposite direction head node with the Signal Degrade process information, OAM module in this opposite direction head node can be according to the Signal Degrade process information that receives, processing module in this opposite direction head node sends Signal Degrade information as the TMP module.
Processing module can be determined the type of Signal Degrade alarm according to the section of striding Packet Error Ratio under the node of processing module place.Can judge whether this Packet Error Ratio is higher than preset threshold, if be higher than the first threshold of setting, the type that then can determine this Signal Degrade alarm is the FEI alarm, if be higher than second threshold value of setting, the type that then can determine this Signal Degrade alarm is the SD alarm, and described first threshold is less than second threshold value.Certainly, in interface module (as SDH/ETH), TMS module, TMP module, TMC module, must be provided with threshold value at FEI alarm and SD alarm.
More excellent, when processing module determines whether to have produced the Signal Degrade alarm according to the FEI message, can identify according to the alarm type in this FEI message, identify to determine the type of this Signal Degrade alarm as SD, concrete, can set the type that SD is designated 0 this Signal Degrade of expression alarm is the FEI alarm, and the type that SD is designated this Signal Degrade alarm of 1 expression is the SD alarm.
Concrete, when described processing module is the TMP module, can determine the type of this Signal Degrade alarm by the Tunnel submodule in the TMP module.
The type that step 103, processing module are alarmed according to Signal Degrade is carried out Signal Degrade and is handled.
In this step, alarm if the described type that step 102 is determined is FEI, then processing module produces the interface alarm and finishes this handling process, if described type is the SD alarm, then processing module is carried out the tunnel switching.
Can set Tunnel Group submodule and can carry out the tunnel switching, and setting TMS module can then comprise following three kinds of situations to TMP module transmission Signal Degrade information:
First kind, when described processing module is the TMS module, processing module is carried out the tunnel and is switched and specifically to comprise:
The TMS module judges whether self is in the looped network protection; if; then notify the Tunnel Group submodule in the TMP module to carry out the tunnel switching; and when handover success, finish this handling process; when handoff failure or definite TMS module are not in the looped network protection, send Signal Degrade information to the TMP module.
Second kind, when described processing module is the TMP module, processing module is carried out the tunnel and is switched and specifically to comprise:
Tunnel submodule in the TMP module judges self whether to be in the linear tunnel protection:
If then notify Tunnel Group submodule to carry out the tunnel and switch, and when handover success, finish this handling process;
When handoff failure or definite Tunnel submodule are not in the linear tunnel protection,, in this step, can send Signal Degrade information to the TMC layer because Tunnel submodule self place node is a head node.
Proxy module is after receiving the SD alarm; notice Tunnel Group submodule carries out the tunnel and switches; specifically comprise: after the SD alarm that proxy module receives; the handoff algorithms module that announcement is corresponding; as automatic protection conversion (APS; Auto Protect Switch), and after utilizing the handoff algorithms module to obtain corresponding switchover policy, notice Tunnel Group submodule carries out the tunnel and switches.
The third, when described processing module is the TMC module, processing module is carried out the tunnel and is switched and specifically to comprise:
The TMC module is notified pseudo-line, and (PW, Pseudowire) redundancy group is carried out the tunnel switching.
When setting Tunnel Group submodule cannot carry out the tunnel switching, under first kind and second kind of situation, the TMP module is in the time need carrying out the tunnel switching according to the requirement of TMS module or according to the requirement of TMP module self, to send Signal Degrade information to the TMC module, and require the TMC module to carry out the tunnel and switch.Concrete, the TMP module can send service layer's Signal Degrade (SSD, Servise Signal Degrade) information to the TMC module.
When described processing module determined to have produced the Signal Degrade alarm according to the Signal Degrade information that receives, after step 101, before the step 102, described method can also comprise:
Step 102 ', OAM module announcement producing the Signal Degrade alarm.
When described processing module was the TMS module, this step specifically comprised: TMS module notice OAM module requires the TMS OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMS layer.
When described processing module was the TMP module, this step specifically comprised: TMP module notice OAM module requires the TMP OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMP layer.
When described processing module was the TMC module, this step specifically comprised: TMC module notice OAM module requires the TMC OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMC layer.
The method that provides according to the embodiment of the invention three, during head node generation Signal Degrade in the tunnel, can utilize self TMS module, TMP module, TMC module to realize the Signal Degrade processing, and can carry out corresponding Signal Degrade according to the type of Signal Degrade alarm and handle.The embodiment of the invention three also provides definite multiple mode that produces the Signal Degrade alarm.And the OAM module in the embodiment of the invention three can also be announced the Signal Degrade alarm that is created in each layer.
Embodiment four,
The embodiment of the invention four provides a kind of Signal Degrade processing method, is example with the non-head node 202 of Tunnel among Fig. 4, and the steps flow chart of this method specifically comprises as shown in Figure 6:
In non-head node, described processing module can be TMS module or TMP module, promptly in the present embodiment, is integrated with the Signal Degrade processing unit that relates among the embodiment two in TMS module and/or TMP module.The function of the described processing module that relates in the present embodiment can be considered as the function of Signal Degrade processing unit.
The mode that described processing module has determined to produce the Signal Degrade alarm is identical with the mode of record in embodiment one step 101, does not repeat them here.
Each processing module of present embodiment determines that the method for the type that this Signal Degrade is alarmed is identical with the method for record in embodiment one step 102, does not repeat them here.
The type that step 203, processing module are alarmed according to Signal Degrade is carried out Signal Degrade and is handled.
The TMS module is carried out TMS module in the concrete grammar that switches in the tunnel and embodiment one step 103, and to carry out the concrete grammar of tunnel switching identical, do not repeat them here.
Can set Tunnel Group submodule and can carry out the tunnel switching, the TMP module is carried out the tunnel switching and is specifically comprised:
Tunnel submodule in the TMP module judges self whether to be in the linear tunnel protection:
If then notify Tunnel Group submodule to carry out the tunnel and switch, and when handover success, finish this handling process;
When handoff failure or definite Tunnel submodule are not in the linear tunnel protection; because Tunnel submodule self place node is non-head node; in this step; can announce the opposite direction head node that alarm takes place in the tunnel of OAM module under this non-head node and send the Signal Degrade process information, require the correlation module in the head node to carry out the tunnel handover operation.When described non-head node is node 202, if take place among the Tunnel1 direction of alarm be node 201 to node 205, then node 202 can send the Signal Degrade process informations to node 205.
When setting Tunnel Group submodule cannot carry out the tunnel switching, the TMP module is in the time need carrying out the tunnel switching according to the requirement of TMS module or according to the requirement of TMP module self, can announce the opposite direction head node that alarm takes place in the tunnel of OAM module under this non-head node and send the Signal Degrade process information, require the correlation module in the head node to carry out the tunnel handover operation.Concrete, the TMP module can come to send the Signal Degrade process information to the TMC module by SSD information.
Non-head node can send Signal Degrade information to the head node of appointment with the cycle t1 that sets; the default value of t1 is 1 second; in case in the time of also can setting handoff failure or definite Tunnel submodule and be not in the linear tunnel protection, promptly the head node to appointment sends the Signal Degrade process information.
Non-head node with the cycle t1 that sets when the head node of appointment sends the Signal Degrade process information, this Signal Degrade process information can be 3*t1 the effective time in this head node, promptly in the time of 3*t1, if this head node does not receive the Signal Degrade process information that this non-head node sends once more, can carry out Signal Degrade according to the Signal Degrade process information that received last time handles, if exceed the time of 3*t1, still do not receive the Signal Degrade process information that this non-head node sends once more, then this head node thinks that the Signal Degrade of this non-head node disappears, and produces the notice that corresponding Signal Degrade alarm disappears.
When described processing module determined to have produced the Signal Degrade alarm according to the Signal Degrade information that receives, after step 201, before the step 202, described method can also comprise:
Step 202 ', OAM module announcement producing the Signal Degrade alarm.
This step is at each processing module of present embodiment, the step 102 among the method that the OAM module has produced Signal Degrade alarm announcement and the embodiment one ' identical, do not repeat them here.
The method that provides according to the embodiment of the invention four, when having produced Signal Degrade in the non-head node in the tunnel, can utilize TMS module, TMP module in the non-head node to carry out the Signal Degrade processing, and can be in the time self can't finishing the Signal Degrade processing, utilization and this non-head node are in same tunnel, and the head node opposite with the alarm direction realized the Signal Degrade processing.
With the embodiment of the invention three, embodiment four based on same inventive concept, the invention provides following node device.
Embodiment five,
The embodiment of the invention five provides a kind of node device, corresponding with the function of head node among the embodiment three, as shown in Figure 7, this node device comprises passage layers TMC module 11, channel layer TMP module 12, section layer TMS module 13, interface module 14 and operation management maintain OAM module 15, TMC module 11, any one in TMP module 12 and the TMS module 13 can be used as processing module:
Processing module is used to determine to have produced the Signal Degrade alarm, determines the type of this Signal Degrade alarm, if described type is first alarm, then produces the interface alarm and finishes this handling process, if described type is second alarm, then carries out the tunnel and switches.
Can dispose detection sub-module in the described processing module:
The detection sub-module that disposes in the processing module when being used for that the section of striding Packet Error Ratio is higher than first set point under detecting processing module place node, determines to have produced the Signal Degrade alarm.
Described processing module specifically is used for received signal deterioration information, when processing module self does not have the configuration detection submodule, determines to have produced the Signal Degrade alarm according to the Signal Degrade information that receives.
Described processing module, specifically be used for the Signal Degrade information that the receiving interface module reports, when this Signal Degrade information is interface module the section of striding Packet Error Ratio is higher than second set point under the detection sub-module of self configuration detects interface module place node, report according to self configuration information; Perhaps,
Described processing module specifically is used to receive the Signal Degrade information that other processing modules report, and described Signal Degrade information is after other processing modules are determined the type of Signal Degrade alarm, can't realize what the tunnel reported when switching in other processing modules self; Perhaps,
Described processing module specifically is used for receiving described OAM module and receives the Signal Degrade information that reports behind the Signal Degrade process information of the non-head node transmission in tunnel.
Can comprise TMS OAM submodule 151, TMP OAM submodule 152, TMC OAM submodule 153 in the described OAM module 15.Described TMP module 12 comprises Tunnel Group submodule 121 and Tunnel submodule 122.
Described TMS module 13 also is used to notify OAM module, requires the TMS OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMS layer.
Described TMS module 13; also be used for judging self whether to be in looped network protection; if; then notify the Tunnel Group submodule in the TMP module to carry out the tunnel switching; and when handover success, finish this handling process; when handoff failure or definite TMS module are not in the looped network protection, send Signal Degrade information to the TMP module.
Described TMS module 13 also is used for requirement TMC module and carries out the tunnel switching.
Tunnel submodule 122 is used for the type of determining that this Signal Degrade is alarmed.
TMP module 12 also is used to notify OAM module, requires the TMP OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMP layer.
Tunnel submodule 122; be used for judging and self whether be in the linear tunnel protection; if; then notifying Tunnel Group submodule to carry out the tunnel switches; and when handover success, finish this handling process; at handoff failure or when determining self not to be in the linear tunnel protection, send Signal Degrade information to the TMC module.
TMP module 12 also is used for requirement TMC module and carries out the tunnel switching.
Described TMC module 11 also is used to notify OAM module, requires the TMC OAM submodule announcement in the OAM module to produce the Signal Degrade alarm at the TMC layer.
Described TMC module 11 also is used to notify pseudo-line redundancy group to carry out the tunnel and switches.
Described OAM module 15 is used for reporting Signal Degrade information according to setting the Signal Degrade process information that receives in the duration.
Embodiment six,
The embodiment of the invention six provides a kind of node device, corresponding with the function of non-head node among the embodiment four, as shown in Figure 8, this node device comprises channel layer TMP module 21, section layer TMS module 22, interface module 23 and operation management maintain OAM module 24, any one in TMP module 21 and the TMS module 22 can be used as processing module:
Processing module is used to determine to have produced the Signal Degrade alarm, determines the type of this Signal Degrade alarm, if described type is first alarm, then produces the interface alarm and finishes this handling process, if described type is second alarm, then carries out the tunnel and switches.
Can comprise TMS OAM submodule 241, TMP OAM submodule 242 in the described OAM module 24.
Module corresponding in other modules in the present embodiment and the node device that embodiment five provides has identical functions, does not repeat them here.
The node device that the embodiment of the invention five and embodiment six provide can be two separate equipment, can in a node device, be integrated with the corresponding function module that embodiment five and embodiment six provide, make this node device in the tunnel, both can be used as head node and use, also can be used as non-head node and use.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1. a Signal Degrade processing method is characterized in that, this method comprises:
Node device determines to produce the Signal Degrade alarm; And
Determine the type of the Signal Degrade alarm of this generation;
As if the described type of determining is error code announcement FEI alarm forward, and then node device generation interface is alarmed and finished this handling process, if the described type of determining is deterioration SD alarm, then node device carries out the tunnel switching.
2. the method for claim 1 is characterized in that, node device determines to produce the Signal Degrade alarm in the following manner:
Node device determines to produce the Signal Degrade alarm when section of striding Packet Error Ratio is higher than first set point under detecting self.
3. the method for claim 1 is characterized in that, node device determines to produce the Signal Degrade alarm in the following manner:
Node device received signal deterioration information, and
Determine to produce the Signal Degrade alarm according to the Signal Degrade information that receives.
4. a Signal Degrade processing unit is characterized in that, this device comprises:
The alarm determination module is used for determining that the node device at described device place produces the Signal Degrade alarm;
The type determination module is used for the type of determining that this definite Signal Degrade of alarm determination module is alarmed;
Warning processing module, when being used for the described type determined at the type determination module for error code announcement FEI alarm forward, the node device of controlling described device place produces the interface alarm and finishes this handling process, when the described type of determining at the type determination module was alarmed for deterioration SD, the node device of then controlling described device place carried out the tunnel and switches.
5. device as claimed in claim 4 is characterized in that, described alarm determination module specifically comprises:
Detection sub-module, be used to judge the node device at described device place under the section of striding Packet Error Ratio whether be higher than first set point;
Submodule is determined in alarm, when being used for that the section of striding Packet Error Ratio is higher than first set point under detection sub-module is judged described device place node, determines that the node device at described device place produces the Signal Degrade alarm.
6. device as claimed in claim 4 is characterized in that, described alarm determination module specifically comprises:
Receive submodule, be used for received signal deterioration information;
Submodule is determined in alarm, is used for when the reception submodule receives Signal Degrade information, determines that according to the Signal Degrade information that receives the node device at described device place produces the Signal Degrade alarm.
7. node device, it is characterized in that, comprise the Signal Degrade processing unit, be used for when determining the alarm of node device generation Signal Degrade, determine the type of the Signal Degrade alarm of this generation,, then control described node device and produce the interface alarm and finish this handling process if the described type of determining is error code announcement FEI alarm forward, if the described type of determining is deterioration SD alarm, then makes described node device and carry out the tunnel switching.
8. node device as claimed in claim 7 is characterized in that, disposes detection sub-module in the described Signal Degrade processing unit:
The Signal Degrade processing unit when being used for specifically that the section of striding Packet Error Ratio is higher than first set point under described detection sub-module detects described node device, determines that described node device has produced the Signal Degrade alarm.
9. node device as claimed in claim 7 is characterized in that,
Described Signal Degrade processing unit specifically is used for received signal deterioration information, determines that according to the Signal Degrade information that receives described node device has produced the Signal Degrade alarm.
10. node device as claimed in claim 9, it is characterized in that, described Signal Degrade processing unit, specifically be used for receiving the Signal Degrade information that the interface module of described node device reports, when this Signal Degrade information is described interface module the section of striding Packet Error Ratio is higher than second set point under the detection sub-module of self configuration detects described node device, report according to self configuration information; Perhaps
Described node device comprises at least two Signal Degrade processing unit, the first Signal Degrade processing unit wherein, specifically be used to receive the Signal Degrade information that secondary signal degradation treatment device reports, described Signal Degrade information is secondary signal degradation treatment device after the type of determining the Signal Degrade alarm, self can't realize what the tunnel reported when switching at the first Signal Degrade processing unit; Perhaps
Described Signal Degrade processing unit specifically is used for receiving the Signal Degrade information that reports behind the operation management maintain OAM module Signal Degrade process information that non-head node equipment sends in receiving the tunnel of described node device.
11. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the section layer TMS module in the described node device:
Described Signal Degrade processing unit also is used for notifying the OAM module of described node device, indicates the TMS OAM submodule announcement in the described OAM module to produce the Signal Degrade alarm at the TMS layer.
12. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the TMS module in the described node device:
Described Signal Degrade processing unit; be used for also judging whether described TMS module is in looped network protection; if; then the Tunnel Group submodule in the channel layer TMP module in the notifying section point device carries out the tunnel switching; and when handover success, finish this handling process; at handoff failure or when determining that described TMS module is not in the looped network protection, send Signal Degrade information to described TMP module.
13. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the TMS module in the described node device:
Described Signal Degrade processing unit, the passage layers TMC module that also is used for the described node device of requirement is carried out the tunnel switching.
14. node device as claimed in claim 9 is characterized in that, described Signal Degrade processing unit is integrated in the TMP module in the described node device:
The Signal Degrade processing unit also is used for notifying the OAM module of described node device, indicates the TMP OAM submodule announcement in the described OAM module to produce the Signal Degrade alarm at the TMP layer.
15. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the TMP module in the described node device:
The Signal Degrade processing unit; be used for judging whether the Tunnel submodule of described TMP module is in the linear tunnel protection; if; then notify the Tunnel Group submodule in the described TMP module to carry out the tunnel switching; and when handover success, finish this handling process; when handoff failure or definite Tunnel submodule are not in the linear tunnel protection, send Signal Degrade information to described TMC module.
16. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the TMP module in the described node device:
The Signal Degrade processing unit also is used for the described TMC module of requirement and carries out the tunnel switching.
17. node device as claimed in claim 9 is characterized in that, described Signal Degrade processing unit is integrated in the TMC module in the described node device:
Described Signal Degrade processing unit also is used for notifying the OAM module of described node device, indicates the TMC OAM submodule announcement in the described OAM module to produce the Signal Degrade alarm at the TMC layer.
18. node device as claimed in claim 7 is characterized in that, described Signal Degrade processing unit is integrated in the TMC module in the described node device:
Described Signal Degrade processing unit also is used to notify pseudo-line redundancy group to carry out the tunnel and switches.
19. node device as claimed in claim 10 is characterized in that, described Signal Degrade processing unit specifically is used for the Signal Degrade process information that reports according to described OAM module in setting duration, determine that described node device has produced the Signal Degrade alarm.
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| CN2011101525319A CN102215127A (en) | 2011-06-08 | 2011-06-08 | Signal degrade processing method, device and node equipment |
| PCT/CN2012/073934 WO2012167667A1 (en) | 2011-06-08 | 2012-04-12 | Signal degradation processing method, device and node device |
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| CN2011101525319A CN102215127A (en) | 2011-06-08 | 2011-06-08 | Signal degrade processing method, device and node equipment |
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