CN103888295A - Method and system for achieving LSP quick detection based on loopback in PTN/IPRAN management - Google Patents
Method and system for achieving LSP quick detection based on loopback in PTN/IPRAN management Download PDFInfo
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Abstract
The invention discloses a method and system for achieving LSP quick detection based on loopback in PTN/IPRAN management, and relates to the field of PIN/IPRAN maintenance. The method comprises the following steps that an LSP to be detected, configuration of services borne by the LSP and OAM parameters related to an LSP layer are completed through system configuration; whether communication between LSP source and host is interrupted or not is detected, if the communication is unobstructed, it shows that the LSP is normal, and detection is stopped; if the communication is interrupted, LB hop-by-hop detection between LSP nodes is automatically carried out, whether the hops of the LSP and the source and host are unobstructed or not is judged, failure nodes on the LSP are located and recorded, failure points on an LSP path are displayed through graphical interfaces according to a recorded LB result, and an electronic failure treatment work order is generated. According to the method and system, failure detection and failure locating efficiency can be effectively improved, the efficiency of maintenance management and the automation level can be improved, the requirement for the failure troubleshooting level of maintenance personnel is lowered, and network maintenance cost is lowered.
Description
Technical field
The present invention relates to PTN/IPRAN end to end network area of maintenance, specifically relate to the method and system that realize LSP fast detecting in a kind of PTN/IPRAN webmaster based on loopback.
Background technology
Along with PTN(Packet Transport Network, Packet Transport Network)/IPRAN(IP Radio Access Network, IPization wireless access network) extensive use of network in each operator.Each carrier network attendant is to OAM(Operation Administration and Maintenance, operation, management, maintenance) the higher requirement of management proposition, especially how carry out fast service fulfillment detection and fault location, this just need to be to LSP(Label Switched Path, label switched path) open and detect and fault location is carried out fast, manage intuitively.After at present current alarm report fault, adopt manual to respectively jumping into the mode of the manual loopback of row on LSP path, operate very loaded down with trivial details, the efficiency of business detection and fault location is lower, and to the having relatively high expectations of attendant's faults itself investigation level, the maintenance cost of PTN/IPRAN network also increases.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, the method and system that realize LSP fast detecting in a kind of PTN/IPRAN webmaster based on loopback are provided, can effectively improve the efficiency of fault detect and fault location, improve efficiency and the automatization level of the management of O&M personnel service maintenance, reduce the requirement to attendant's faults itself investigation level, thereby reduce the maintenance cost of PTN/IPRAN network.
The invention provides a kind of method that realizes LSP fast detecting in PTN/IPRAN webmaster based on loopback, comprise the following steps:
S1, system adopt end-to-end configuration mode, the business configuration, LSP that configures the upper carrying of label switching path LSP to be detected, this LSP be OAM parameter and the LSP parameter of loopback LB in OAM as required initiatively, and all parameters of configuration are handed down to network PTN/IPRAN equipment; Described LSP initiatively OAM parameter comprises that the transmission of Connectivity Verification CV frame enables, CV frame sends cycle, maintenance entity grade MEL, maintenance entity group identifier MEGID, the endpoint identifier MEPID of Maintenance Entity, the intermediate point identifier MIPID of Maintenance Entity; Described LSP as required in OAM the parameter of LB comprise that LB message sends cycle, LB message and sends priority, test mode, LB message length, LB message and send number;
Whether S2, system detect between LSP sourcesink communication disruption: the LB function between the MEP peer-to-peer on operation LSP, system sends LB message according to LB parameter from MEPXiang place, source MEP automatically, LB message is looped back to source MEP by place MEP, the LB message number that the LB message number that reference source MEP receives and source MEP send, if the two equates, represent that between sourcesink node, LSP is unimpeded, point out user LSP unimpeded, stop detecting; If it is overtime that LB message returns, the LB message number that source MEP receives is less than the LB message number that source MEP sends, and represents that between sourcesink website, LSP interrupts, and forwards step S3 to, carries out fault location;
Whether S3, system are automatically carried out between LSP node loopback hop-by-hop and are detected, judge that LSP is each to jump between sourcesink unobstructedly, and malfunctioning node everywhere on the LSP of location, and record the identifier that all MIP of interruption are ordered, specifically comprises the following steps:
S301, system are according to the OAM parameter configuring in step S1, from the source node MEP of LSP, according to LSP path MIP to downstream node, hop-by-hop sends loopback bag to near-end and far-end MIP, records every jumping near-end and far-end MIP loopback result, if LSP is unimpeded, continue toward down hop loopback; If LSP interrupts, find and interrupt MIP point, use P
xrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered;
S302, system from the destination node MEP of LSP according to upstream P of LSP path
xpoint MIP sends loopback bag, if unimpeded, finishes loopback, forwards step S304 to; If interrupted, send loopback bag according to LSP path upstream nodes MIP hop-by-hop to near-end and far-end MIP from destination node MEP, find and interrupt MIP point, use P
yrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered; Forward step S303 to;
S303, system are at P
xand P
ybetween repeated execution of steps S301, S302, until P
xand P
ybecome same node, represent to have found the upper all interruption MIP points of LSP;
All interruption MIP dot informations of finding in S304, system log (SYSLOG) loop-back process;
S4, system are according to all interruption MIP point results of step S3 record, on LSP Trail View, show the fault point everywhere in LSP path by graphical interfaces, show figure according to interrupting MIP point result and LSP path failure, generate electronic troubleshooting work order, in electronic troubleshooting work order, record business information and the LSP maintenance customer information of LSP path failure demonstration figure, LSP impact.
On the basis of technique scheme, described MEGID adopts the character string that the abbreviation of type+equipment vendor+the digital ID of distribution automatically forms to form.
On the basis of technique scheme, described MEPID and MIPID are natural numbers, and MEPID and MIPID progressively increase at every turn and 1 carry out automatic numbering since 1 according to natural number.
On the basis of technique scheme, described source node MEPID=1, destination node MEPID=2, MIPID adds 1 mode according to LSP path direction since 3 hop-by-hops and automatically distributes.
On the basis of technique scheme, the Trail View of LSP described in step S4 adopts the disconnected state on the disposable demonstration LSP of graphical interfaces path intuitively, show multiple breakpoints, between normal point, adopt normal green line to connect, interrupting portion adopts red line to represent, and at the red little fork pattern of fault point mark.
The present invention also provides the system that realizes LSP fast detecting in a kind of PTN/IPRAN webmaster based on loopback, described system adopts end-to-end configuration mode, the business configuration, LSP that configures the upper carrying of label switching path LSP to be detected, this LSP be OAM parameter and the LSP parameter of loopback LB in OAM as required initiatively, and all parameters of configuration are handed down to network PTN/IPRAN equipment; Described LSP initiatively OAM parameter comprises that the transmission of Connectivity Verification CV frame enables, CV frame sends cycle, maintenance entity grade MEL, maintenance entity group identifier MEGID, the endpoint identifier MEPID of Maintenance Entity, the intermediate point identifier MIPID of Maintenance Entity; Described LSP as required in OAM the parameter of LB comprise that LB message sends cycle, LB message and sends priority, test mode, LB message length, LB message and send number;
Whether system detects between LSP sourcesink communication disruption: the LB function between the MEP peer-to-peer on operation LSP, system sends LB message according to LB parameter from MEPXiang place, source MEP automatically, LB message is looped back to source MEP by place MEP, the LB message number that the LB message number that reference source MEP receives and source MEP send, if the two equates, represent that between sourcesink node, LSP is unimpeded, point out user LSP unimpeded, stop detecting; If it is overtime that LB message returns, the LB message number that source MEP receives is less than the LB message number that source MEP sends, and represents that between sourcesink website, LSP interrupts, and carries out fault location:
Whether system is automatically carried out between LSP node loopback hop-by-hop and is detected, judge that LSP is each to jump between sourcesink unobstructedly, and malfunctioning node everywhere on the LSP of location, and record the identifier that all MIP of interruption are ordered, specifically comprises the following steps:
S301, system are according to the OAM parameter of system configuration, from the source node MEP of LSP, according to LSP path MIP to downstream node, hop-by-hop sends loopback bag to near-end and far-end MIP, records every jumping near-end and far-end MIP loopback result, if LSP is unimpeded, continue toward down hop loopback; If LSP interrupts, find and interrupt MIP point, use P
xrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered;
S302, system from the destination node MEP of LSP according to upstream P of LSP path
xpoint MIP sends loopback bag, if unimpeded, finishes loopback, forwards step S304 to; If interrupted, send loopback bag according to LSP path upstream nodes MIP hop-by-hop to near-end and far-end MIP from destination node MEP, find and interrupt MIP point, use P
yrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered; Forward step S303 to;
S303, system are at P
xand P
ybetween repeated execution of steps S301, S302, until P
xand P
ybecome same node, represent to have found the upper all interruption MIP points of LSP;
All interruption MIP dot informations of finding in S304, system log (SYSLOG) loop-back process;
System is according to all interruption MIP point results of record, on LSP Trail View, show the fault point everywhere in LSP path by graphical interfaces, show figure according to interrupting MIP point result and LSP path failure, generate electronic troubleshooting work order, in electronic troubleshooting work order, record business information and the LSP maintenance customer information of LSP path failure demonstration figure, LSP impact.
On the basis of technique scheme, described MEGID adopts the character string that the abbreviation of type+equipment vendor+the digital ID of distribution automatically forms to form.
On the basis of technique scheme, described MEPID and MIPID are natural numbers, and MEPID and MIPID progressively increase at every turn and 1 carry out automatic numbering since 1 according to natural number.
On the basis of technique scheme, described source node MEPID=1, destination node MEPID=2, MIPID adds 1 mode according to LSP path direction since 3 hop-by-hops and automatically distributes.
On the basis of technique scheme, described LSP Trail View adopts the disconnected state on the disposable demonstration LSP of graphical interfaces path intuitively, show multiple breakpoints, between normal point, adopt normal green line to connect, interrupting portion adopts red line to represent, and at the red little fork pattern of fault point mark.
Compared with prior art, advantage of the present invention is as follows:
The present invention is in the time that configuration LSP or LSP bearer service break down, by one-touch, LSP path hop-by-hop is carried out to loopback between sourcesink MEP and MIP automatically, find all interruption position that break down on LSP path, multiple fault points that may occur on the disposable LSP of finding path, and by fault location information and the combination of LSP Trail View, carry out direct viewing fault position display, and generate electronic troubleshooting work order, can effectively improve the efficiency of fault detect and fault location, improve efficiency and the automatization level of the management of O&M personnel service maintenance, reduce the requirement to attendant's faults itself investigation level, thereby reduce the maintenance cost of PTN/IPRAN network.
Brief description of the drawings
Fig. 1 is the flow chart of realizing the method for LSP fast detecting in the embodiment of the present invention in PTN/IPRAN webmaster based on loopback.
Fig. 2 is the schematic diagram that shows LSP path failure.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of method that realizes LSP fast detecting in PTN/IPRAN webmaster based on loopback, comprises the following steps:
S1, preparation: system adopts end-to-end configuration mode, configure business configuration, the initiatively OAM parameter of LSP of the upper carrying of LSP to be detected, this LSP, and all parameters of configuration be handed down to network PTN/IPRAN equipment; When needs carry out that LSP detects and when fault location, also to configure LSP LB(Loop Back in OAM as required, loopback) parameter.
Table 1, LSP be OAM parameter and the LSP parameter list of LB in OAM as required initiatively
Ginseng is shown in Table 1, LSP initiatively OAM parameter comprises CV(Connectivity Verification, Connectivity Verification) frame send enable, CV frame sends the cycle, MEL(Maintenance Entity Level, maintenance entity grade), MEGID(Maintenance Entity Group Identifier, maintenance entity group identifier), MEPID(Maintenance Entity Group End Point Identifier, the endpoint identifier of Maintenance Entity), MIPID(Maintenance Entity Group Intermediate Point Identifier, the intermediate point identifier of Maintenance Entity), wherein:
CV frame sends and enables: CV enable switch, is divided into and enables, do not enable two options;
CV frame sends the cycle: be divided into 3.33ms, 10ms, 100ms, tetra-options of 1s, default value is 100ms;
MEL: be divided into 0～7 totally 8 ranks;
MEGID: character string, webmaster distributes automatically, MEGID adopts the digital ID(identifier of type+equipment vendor abbreviation+automatically distribute) character string that forms forms, for example: the abbreviation of the Fiberhome of the LSP+FH(FiberHome)+digital the ID that automatically distributes;
MEPID: webmaster distributes automatically;
MIPID: webmaster distributes automatically.
MEPID and MIPID are natural numbers, MEPID and MIPID progressively increase at every turn and 1 carry out automatic numbering since 1 according to natural number, for example: source node MEPID=1, destination node MEPID=2, MIPID adds 1 mode according to LSP path direction since 3 hop-by-hops and automatically distributes: MIP(Maintenance Entity Group Intermediate Point, the intermediate point of Maintenance Entity) near-end of node and far-end MIPID be since 3, 1 the mode of adding in turn according to route order hop-by-hop is distributed automatically, for example: a LSP through 8 jumpings, sourcesink MEP(Maintenance Entity Group End Point Identifier, the end points of Maintenance Entity) be respectively 1, 2, hop-by-hop near-end and far-end MIPID are respectively 3 in turn, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14.
Ginseng is shown in Table 1, LSP as required in OAM the parameter of LB comprise that LB message sends cycle, LB message and sends priority, test mode, LB message length, LB message and send number, wherein:
LB message sends the cycle: be divided into 3.33ms, 10ms, 100ms, tetra-options of 1s, default value is 100ms;
LB message sends priority: be divided into 0～7 totally 8 ranks, default value is 7;
Test mode: be divided into online, two kinds of modes of off-line, online mode represents business payload still on line, LB detects the service delivery not affecting on current LSP; Offline mode represents to close the transmission of business payload, only has the transmission of LB loopback frame on LSP; Default value is off-line;
LB message length: numerical value, default value is 32;
LB message sends number: numerical value, default value is 3.
Whether S2, system detect between LSP sourcesink communication disruption: the LB function between the MEP peer-to-peer on operation LSP, system sends LB message according to LB parameter from MEPXiang place, source MEP automatically, LB message is looped back to source MEP by place MEP, the LB message number that the LB message number that reference source MEP receives and source MEP send, if the two equates, represent that between sourcesink node, LSP is unimpeded, point out user LSP unimpeded, stop detecting; If it is overtime that LB message returns, the LB message number that source MEP receives is less than the LB message number that source MEP sends, and represents that between sourcesink website, LSP interrupts, and forwards step S3 to, carries out fault location;
Whether S3, system are automatically carried out between LSP node loopback hop-by-hop and are detected, judge that LSP is each to jump between sourcesink unobstructedly, and malfunctioning node everywhere on the LSP of location, and record the identifier that all MIP of interruption are ordered, specifically comprises the following steps:
S301, system are according to the OAM parameter configuring in step S1, from the source node (MEP) of LSP according to LSP path (MIP) to downstream node, hop-by-hop sends loopback bag to near-end and far-end MIP, record every jumping near-end and far-end MIP loopback result, shown in Figure 2, if LSP is unimpeded, continue toward down hop loopback; If LSP interrupts, find and interrupt MIP point, use P
xrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered;
S302, system from the destination node (MEP) of LSP according to upstream P of LSP path
xpoint (MIP) sends loopback bag, if unimpeded, finishes loopback, forwards step S304 to; If interrupted, send loopback bag according to LSP path upstream nodes (MIP) hop-by-hop to near-end and far-end MIP from destination node (MEP), find and interrupt MIP point, use P
yrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered; Forward step S303 to;
S303, system are at P
xand P
ybetween repeated execution of steps S301, S302, until P
xand P
ybecome same node, represent to have found the upper all interruption MIP points of LSP;
S304, record all interruption MIP dot informations of finding in loop-back process.
Below by a concrete example, step S3 is elaborated.
Shown in Figure 2, LSP in Fig. 2, first from node NodeA(MEPID=1) Node1(near-end MIPID=3 to downstream node, far-end MIPID=4) loopback, find it is unobstructed according to returning to bag number, continue by node NodeA(MEPID=1) Node2(near-end MIPID=5 to downstream node, far-end MIPID=6) loopback, also be unobstructed, just continue by node NodeA(MEPID=1) Node3(near-end MIPID=7 to downstream node, far-end MIPID=8) loopback is unobstructed while finding MIPID=7, when MIPID=8, return to bag overtime, record current P
x=Node3(MIPID=8), illustrate that node Node3 breaks down.
Then, from node NodeZ(MEPID=2) upstream nodes Node5(near-end MIPID=12, far-end MIPID=11) loopback, find it is unobstructed according to returning to bag number, just continue by node NodeZ(MEPID=2) upstream nodes Node4(near-end MIPID=10, far-end MIPID=9) loopback, find that MIPID=10 returns to bag overtime, record current P
y=Node4(MIPID=10), illustrate between node Node4 and node Node5 and break down.
Then again from P
x=Node3(MIPID=8) Node4(near-end MIPID=9 to downstream node, far-end MIPID=10) loopback, discovery is unobstructed, stops loopback, finally records two and interrupts MIP point: Node3(MIPID=8) and Node4(MIPID=10).
S4, system are according to all interruption MIP point results of step S3 record, on LSP Trail View, show the fault point everywhere in LSP path by graphical interfaces, for example: adopt the disconnected state on the disposable demonstration LSP of graphical interfaces path intuitively, can show multiple breakpoints, between normal point, adopt normal green line to connect, interrupting portion adopts red line to represent, and at the red little fork pattern of fault point mark; Show figure according to interrupting MIP point result and LSP path failure, generate electronic troubleshooting work order, in electronization troubleshooting work order, record business information and the LSP maintenance customer information of LSP path failure demonstration figure (for example: the concrete fault point that shows LSP path directly perceived in Fig. 2), LSP impact, thereby arrange the accurate handling failure of attendant.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these amendment and modification within the scope of the claims in the present invention and equivalent technologies thereof, these revise and modification also within protection scope of the present invention.
The prior art that the content of not describing in detail in specification is known to the skilled person.
Claims (10)
1. a method that realizes LSP fast detecting in PTN/IPRAN webmaster based on loopback, is characterized in that, comprises the following steps:
S1, system adopt end-to-end configuration mode, the business configuration, LSP that configures the upper carrying of label switching path LSP to be detected, this LSP be OAM parameter and the LSP parameter of loopback LB in OAM as required initiatively, and all parameters of configuration are handed down to network PTN/IPRAN equipment; Described LSP initiatively OAM parameter comprises that the transmission of Connectivity Verification CV frame enables, CV frame sends cycle, maintenance entity grade MEL, maintenance entity group identifier MEGID, the endpoint identifier MEPID of Maintenance Entity, the intermediate point identifier MIPID of Maintenance Entity; Described LSP as required in OAM the parameter of LB comprise that LB message sends cycle, LB message and sends priority, test mode, LB message length, LB message and send number;
Whether S2, system detect between LSP sourcesink communication disruption: the LB function between the MEP peer-to-peer on operation LSP, system sends LB message according to LB parameter from MEPXiang place, source MEP automatically, LB message is looped back to source MEP by place MEP, the LB message number that the LB message number that reference source MEP receives and source MEP send, if the two equates, represent that between sourcesink node, LSP is unimpeded, point out user LSP unimpeded, stop detecting; If it is overtime that LB message returns, the LB message number that source MEP receives is less than the LB message number that source MEP sends, and represents that between sourcesink website, LSP interrupts, and forwards step S3 to, carries out fault location;
Whether S3, system are automatically carried out between LSP node loopback hop-by-hop and are detected, judge that LSP is each to jump between sourcesink unobstructedly, and malfunctioning node everywhere on the LSP of location, and record the identifier that all MIP of interruption are ordered, specifically comprises the following steps:
S301, system are according to the OAM parameter configuring in step S1, from the source node MEP of LSP, according to LSP path MIP to downstream node, hop-by-hop sends loopback bag to near-end and far-end MIP, records every jumping near-end and far-end MIP loopback result, if LSP is unimpeded, continue toward down hop loopback; If LSP interrupts, find and interrupt MIP point, use P
xrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered;
S302, system from the destination node MEP of LSP according to upstream P of LSP path
xpoint MIP sends loopback bag, if unimpeded, finishes loopback, forwards step S304 to; If interrupted, send loopback bag according to LSP path upstream nodes MIP hop-by-hop to near-end and far-end MIP from destination node MEP, find and interrupt MIP point, use P
yrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered; Forward step S303 to;
S303, system are at P
xand P
ybetween repeated execution of steps S301, S302, until P
xand P
ybecome same node, represent to have found the upper all interruption MIP points of LSP;
All interruption MIP dot informations of finding in S304, system log (SYSLOG) loop-back process;
S4, system are according to all interruption MIP point results of step S3 record, on LSP Trail View, show the fault point everywhere in LSP path by graphical interfaces, show figure according to interrupting MIP point result and LSP path failure, generate electronic troubleshooting work order, in electronic troubleshooting work order, record business information and the LSP maintenance customer information of LSP path failure demonstration figure, LSP impact.
2. the method that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 1 based on loopback, is characterized in that: described MEGID adopts the character string that the abbreviation of type+equipment vendor+the digital ID of distribution automatically forms to form.
3. the method that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 1 based on loopback, is characterized in that: described MEPID and MIPID are natural numbers, and MEPID and MIPID progressively increase at every turn and 1 carry out automatic numbering since 1 according to natural number.
4. the method that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 3 based on loopback, is characterized in that: described source node MEPID=1, and destination node MEPID=2, MIPID adds 1 mode according to LSP path direction since 3 hop-by-hops and automatically distributes.
5. in the PTN/IPRAN webmaster as described in any one in claim 1 to 4, realize the method for LSP fast detecting based on loopback, it is characterized in that: the Trail View of LSP described in step S4 adopts the disconnected state on the disposable demonstration LSP of graphical interfaces path intuitively, show multiple breakpoints, between normal point, adopt normal green line to connect, interrupting portion adopts red line to represent, and at the red little fork pattern of fault point mark.
6. in a PTN/IPRAN webmaster, realize the system of LSP fast detecting based on loopback, it is characterized in that: described system adopts end-to-end configuration mode, the business configuration, LSP that configures the upper carrying of label switching path LSP to be detected, this LSP be OAM parameter and the LSP parameter of loopback LB in OAM as required initiatively, and all parameters of configuration are handed down to network PTN/IPRAN equipment; Described LSP initiatively OAM parameter comprises that the transmission of Connectivity Verification CV frame enables, CV frame sends cycle, maintenance entity grade MEL, maintenance entity group identifier MEGID, the endpoint identifier MEPID of Maintenance Entity, the intermediate point identifier MIPID of Maintenance Entity; Described LSP as required in OAM the parameter of LB comprise that LB message sends cycle, LB message and sends priority, test mode, LB message length, LB message and send number;
Whether system detects between LSP sourcesink communication disruption: the LB function between the MEP peer-to-peer on operation LSP, system sends LB message according to LB parameter from MEPXiang place, source MEP automatically, LB message is looped back to source MEP by place MEP, the LB message number that the LB message number that reference source MEP receives and source MEP send, if the two equates, represent that between sourcesink node, LSP is unimpeded, point out user LSP unimpeded, stop detecting; If it is overtime that LB message returns, the LB message number that source MEP receives is less than the LB message number that source MEP sends, and represents that between sourcesink website, LSP interrupts, and carries out fault location:
Whether system is automatically carried out between LSP node loopback hop-by-hop and is detected, judge that LSP is each to jump between sourcesink unobstructedly, and malfunctioning node everywhere on the LSP of location, and record the identifier that all MIP of interruption are ordered, specifically comprises the following steps:
S301, system are according to the OAM parameter of system configuration, from the source node MEP of LSP, according to LSP path MIP to downstream node, hop-by-hop sends loopback bag to near-end and far-end MIP, records every jumping near-end and far-end MIP loopback result, if LSP is unimpeded, continue toward down hop loopback; If LSP interrupts, find and interrupt MIP point, use P
xrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered;
S302, system from the destination node MEP of LSP according to upstream P of LSP path
xpoint MIP sends loopback bag, if unimpeded, finishes loopback, forwards step S304 to; If interrupted, send loopback bag according to LSP path upstream nodes MIP hop-by-hop to near-end and far-end MIP from destination node MEP, find and interrupt MIP point, use P
yrepresent this interruption MIP point, record the identifier that this interruption MIP is ordered; Forward step S303 to;
S303, system are at P
xand P
ybetween repeated execution of steps S301, S302, until P
xand P
ybecome same node, represent to have found the upper all interruption MIP points of LSP;
All interruption MIP dot informations of finding in S304, system log (SYSLOG) loop-back process;
System is according to all interruption MIP point results of record, on LSP Trail View, show the fault point everywhere in LSP path by graphical interfaces, show figure according to interrupting MIP point result and LSP path failure, generate electronic troubleshooting work order, in electronic troubleshooting work order, record business information and the LSP maintenance customer information of LSP path failure demonstration figure, LSP impact.
7. the system that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 6 based on loopback, is characterized in that: described MEGID adopts the character string that the abbreviation of type+equipment vendor+the digital ID of distribution automatically forms to form.
8. the system that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 6 based on loopback, is characterized in that: described MEPID and MIPID are natural numbers, and MEPID and MIPID progressively increase at every turn and 1 carry out automatic numbering since 1 according to natural number.
9. the system that realizes LSP fast detecting in PTN/IPRAN webmaster as claimed in claim 8 based on loopback, is characterized in that: described source node MEPID=1, and destination node MEPID=2, MIPID adds 1 mode according to LSP path direction since 3 hop-by-hops and automatically distributes.
10. in the PTN/IPRAN webmaster as described in any one in claim 6 to 9, realize the system of LSP fast detecting based on loopback, it is characterized in that: described LSP Trail View adopts the disconnected state on the disposable demonstration LSP of graphical interfaces path intuitively, show multiple breakpoints, between normal point, adopt normal green line to connect, interrupting portion adopts red line to represent, and at the red little fork pattern of fault point mark.
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