CN102820990A - Method and device for switching service protection - Google Patents

Method and device for switching service protection Download PDF

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Publication number
CN102820990A
CN102820990A CN2012102799698A CN201210279969A CN102820990A CN 102820990 A CN102820990 A CN 102820990A CN 2012102799698 A CN2012102799698 A CN 2012102799698A CN 201210279969 A CN201210279969 A CN 201210279969A CN 102820990 A CN102820990 A CN 102820990A
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equipment
track
protocol message
track detection
link
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CN102820990B (en
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史大军
马嫄
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a method and device for switching service protection. The method comprises the following steps of: starting a mapping function of two ends of a PW (pseudo wire) service, and meanwhile, closing a protocol sate link function of the CIP (client interface protocol); allocating a related Track-session layer protocol on a local terminal PE (provider edge) apparatus, emitting a Track detection protocol message to an opposite terminal CE (customer edge) apparatus by the local terminal PE apparatus according to the Track-session layer protocol; and receiving the Track detection protocol message by the opposite terminal CE apparatus, and reporting, warming and triggering the service to switch. According to the method, the opposite terminal CE apparatus is used for reporting, warning and triggering a pre-allocated switching mechanism to switch the service, and therefore, the beneficial effects of fast sensing and switching the service when the link or the apparatus is in failure are achieved, and the un-interruption of the link is ensured without affecting the normal transmission of other services of the link.

Description

The changing method of service protection and device
Technical field
The present invention relates to communication technical field, relate in particular to a kind of changing method and device of service protection.
Background technology
PTN (Packet Transmission Network; The data packet transmission network) technology is one of mainstream technology of the present communications field; Introduce PW (Pseudo Wire; Virtual link) TMPLS of technology (Transport Multi-Protocol Label Switch, transportation multiprotocol label switch) network can provide the service of telecommunications runtime class to Packet Service, has guaranteed the stability and the reliability of professional transmission.In metropolitan area network, it is an important measurement factor of Network Transmission quality quality that the fast detecting of network link failure is switched with professional protection, also requires to reach the carrier class standard for performance of handoffs.Under the situation of link or device fails, how Rapid Realization is professional switches, guarantees that Network do not interrupt, and does not influence other professional operation in the network simultaneously, has become the emphasis problem that each big operator pays close attention to.
At present bearer network has adopted multiple technologies to realize the quick perception of link failure, and informing business switches, and does not interrupt to guarantee business.Relatively common faults detects with business switch method and is, far-end inserts sidelinks CIP (Client Interface Protocol, subscriber interface protocol) DOWN (disabled) and falls; Local end PE (Provider Edge; Provider Edge) after equipment is received mapping message, the PW state is mapped on the CIP, opens the state interlock function of CIP port then; With the state of the CIP physical port that links, the physical port state is put DOWN.Like this, the port that CE (Customer Edge, customer edge) equipment is attached thereto detects the DOWN alarm, triggers MC-LAG (Multi-Chassis--Link Aggregation Group, multimachine frame link aggregation group) and switches.Because CE equipment can't perception PE equipment virtual interface or the DOWN of protocol level, so wanting to trigger professional switching must be by means of the DOWN of physical link aspect.
Therefore, there are following deficiency in existing Link State detection and professional the switching:
In the network design of existing network; Carrying a plurality of VPN (Virtual Private Network on same the physical link; VPN) business; For same physical port, can insert 4094 vpn services with PORT (port)+VLAN (Virtual Local Area Network, VLAN) access way.Well imagine that in case DOWN takes place the PW of a certain business, this DOWN state links stratification on the physical port, DOWN puts with the physical port state so that let this link of CE equipment perception DOWN in system, and then triggers the MC-LAG protection and switch.Like this, other 4093 vpn services can all interrupt because of physical port DOWN.This is very serious problem, also is that operator does not allow.In addition; This stratification alarm status in layer shines upon, and the agreement flow process is relatively redundant, has increased CPU (Central Processing Unit; Central processing unit) processing burden is difficult to reach the fast detecting link failure to realize the purpose of fast switch over business.
Summary of the invention
Main purpose of the present invention provides a kind of changing method of service protection; Be intended to make when link or equipment break down; CE equipment is perception and the switching of realization business fast, guarantees that link does not interrupt and do not influence other professional normally forwardings of shared this link.
The invention provides a kind of changing method of service protection, may further comprise the steps:
Open the mapping function at professional virtual link PW two ends, simultaneously the protocol status interlock function of shutdown user interface agreement CIP;
Configuration association Track-session layer protocol on local terminal Provider Edge PE equipment, local end PE equipment sends magnetic track Track detection protocol message according to said Track-session layer protocol and gives opposite end customer edge CE equipment;
Opposite end CE equipment receives said Track detection protocol message, and report and alarm and triggering business are switched.
Preferably, said local end PE equipment specifically comprises for the step of opposite end CE equipment according to Track-session layer protocol transmission Track detection protocol message:
Whether the CIP state of judging local end PE equipment is disabled state DOWN; If then local end PE equipment sends Track detection protocol message to opposite end CE equipment.
Preferably, said opposite end CE equipment receives said Track detection protocol message, report and alarm and triggers the professional step of switching and specifically comprises:
Opposite end CE equipment is alarmed according to the said Track detection protocol message reporting that receives, and triggers pre-configured Switchover mechanism, business is switched on the reserve link send.
Preferably, also comprise step:
Judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.
Preferably, said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.
The present invention also provides a kind of switching device shifter of service protection, comprising:
Shine upon opening module, be used to open the mapping function at professional PW two ends, close the protocol status interlock function of CIP simultaneously;
The protocol configuration module is used on local end PE equipment configuration association Track-session layer protocol and sends Track detection protocol message according to said Track-session layer protocol and give opposite end CE equipment;
Professional handover module is used to receive said Track detection protocol message, and report and alarm and triggering business are switched.
Preferably, said protocol configuration module specifically comprises:
The agreement associative cell is used for configuration association Track-session layer protocol on local end PE equipment;
The state judging unit is used to judge whether the CIP state of local end PE equipment is DOWN; If then local end PE equipment sends Track detection protocol message to opposite end CE equipment.
Preferably, said professional handover module specifically comprises:
Professional switch unit is used for according to the said Track detection protocol message reporting alarm that receives, and triggers pre-configured Switchover mechanism, business is switched on the reserve link send.
Preferably, said professional handover module also comprises:
The business recovery unit is used to judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.
Preferably, said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.
The mapping function of the present invention through opening PW two ends PE equipment, close the protocol status interlock function of CIP and configuration association Track-session layer protocol on local end PE equipment; And opposite end CE is according to the alarm of Track detection protocol message reporting and trigger pre-configured Switchover mechanism; Realized that when link or equipment fault the perception industry of going forward side by side be engaged in to switch, guarantees that link does not interrupt and do not influence other professional normal beneficial effects of transmitting of shared this link fast.
Description of drawings
Fig. 1 is the scene sketch map that the changing method of service protection of the present invention is used always in the PTN network;
Fig. 2 is the changing method one embodiment schematic flow sheet of service protection of the present invention;
Fig. 3 is in the changing method of service protection of the present invention, and local end PE equipment sends Track detection protocol message according to the Track-session layer protocol and gives opposite end CE equipment one embodiment schematic flow sheet;
Fig. 4 is in the changing method of service protection of the present invention, and opposite end CE equipment receives Track detection protocol message, report and alarm and triggering business and switches the first embodiment schematic flow sheet;
Fig. 5 is in the changing method of service protection of the present invention, and opposite end CE equipment receives Track detection protocol message, report and alarm and triggering business and switches the second embodiment schematic flow sheet;
The structural representation of switching device shifter one embodiment of Fig. 6 service protection of the present invention;
Fig. 7 is the structural representation of protocol configuration module one embodiment in the switching device shifter of service protection of the present invention;
Fig. 8 is the structural representation of professional handover module first embodiment in the switching device shifter of service protection of the present invention;
Fig. 9 is the structural representation of professional handover module second embodiment in the switching device shifter of service protection of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Further specify technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, Fig. 1 is the scene sketch map that the changing method of service protection of the present invention is used always in the PTN network.As shown in Figure 1; The application scenarios of the changing method of service protection of the present invention in the PTN network is following: in a preferred embodiment; The professional primary link that sends to RNC (Radio Network Controller, radio network controller) end from the base station is: path CE-PE1-PE2-RNC; Reserve link is: path CE-PE3-PE4-RNC; Main PW is the transmission link of local end PE 1 equipment to far-end PE 2 equipment.The link 2 that inserts RNC when far-end PE 2 equipment breaks down or main PW generation LOC (Loss Of Continuity; Continuity is missed) or SSF (Service Switching Function; When Service Switching Function) alarming; CIP on local end PE 1 equipment becomes DOWN, and opposite end CE equipment is given local end PE 1 equipment with said alarm report; Local end PE 1 equipment sends Track detection protocol message and gives opposite end CE equipment; Opposite end CE equipment triggers pre-configured Switchover mechanism according to the said Track detection protocol message that receives, and business is switched to the last forwarding of reserve link path CE-PE3-PE4-RNC fast by primary link path CE-PE1-PE2-RNC.
Based on the scene that the changing method of the described service protection of the present invention of above-mentioned Fig. 1 is used always in the PTN network, with reference to Fig. 2, Fig. 2 is the changing method one embodiment schematic flow sheet of service protection of the present invention.As shown in Figure 2, the changing method of service protection of the present invention comprises:
Step S01, open the mapping function at professional PW two ends, close the protocol status interlock function of CIP simultaneously;
When having LOC or SSF etc. to alarm on far-end PE equipment access link DOWN or the professional PW; At first open the mapping function of the PE equipment at professional PW two ends; Promptly open the mapping function of local end PE equipment and far-end PE equipment, close the protocol status interlock function of CIP simultaneously.In the PTN network, the state of CIP comprises physical state, controlled state and protocol status; In a preferred embodiment, the state interlock function of the said CIP of closing refers to the protocol status interlock function of closing CIP.
Step S02, on local end PE equipment configuration association Track-session layer protocol, local end PE equipment sends Track detection protocol message according to said Track-session layer protocol and gives opposite end CE equipment;
On local end PE equipment, configuration association Track (magnetic track)-session (session) layer protocol.In a preferred embodiment; The related agreement of said Track-session layer comprises CFM (Connectivity Fault Management; The connection fault management) agreement, EFM (Ethernet in the First Mile; First mile Ethernet) agreement, LINK-BFD (LINK-Bidirectional Forwarding Detection, two-way forwarding detects and connects) agreement etc.The access link of local end PE equipment sends Track detection protocol message according to said Track-session layer protocol and gives opposite end CE equipment.
Step S03, opposite end CE equipment receive said Track detection protocol message, and report and alarm and triggering business are switched.
After opposite end CE equipment received said Track detection protocol message, report and alarm and according to the pre-configured Switchover mechanism of said alarm triggered switched business.Said opposite end CE equipment report and alarm is specially: if far-end PE equipment access link DOWN, then CE equipment in opposite end can send mapping message and give local end PE equipment; If warnings such as LOC or SSF are arranged on the professional PW; Then CE equipment in opposite end is through OAM-Mapping (Operation; Administration and Maintenance-Mapping; The oam mapping) the CIP protocol status on the local end PE equipment is mapped as DOWN, but the protocol status of CIP port in fact still is UP (initiate mode) at this moment.
The mapping function of the present invention through opening PW two ends PE equipment, close the state interlock function of CIP and configuration association Track-session layer protocol on local end PE equipment; And opposite end CE equipment is according to the alarm of Track detection protocol message reporting and trigger pre-configured Switchover mechanism; The system that realized is when link or equipment fault, and the perception industry of going forward side by side be engaged in to switch, guarantees that link does not interrupt and do not influence other professional normal beneficial effects of transmitting of shared this link fast.
With reference to Fig. 3, Fig. 3 is in the changing method of service protection of the present invention, and local end PE equipment sends Track detection protocol message according to the Track-session layer protocol and gives opposite end CE equipment one embodiment schematic flow sheet; As shown in Figure 3, local end PE equipment specifically comprises for the step of opposite end CE equipment according to Track-session layer protocol transmission Track detection protocol message in the changing method of service protection of the present invention:
Step S11, judge whether the CIP state of local end PE equipment is DOWN; If, execution in step S12 then; If not, execution in step S13 then;
Step S12, local end PE equipment send Track detection protocol message to opposite end CE equipment;
Step S13, professional normally transmission on primary link.
On with local end PE equipment the protocol status of CIP and said Track-session layer protocol carry out related after; Whether the CIP state of judging local end PE equipment is DOWN; This is that opposite end CE equipment is mapped as DOWN through OAM-Mapping with the CIP protocol status on the local end PE equipment because on professional PW, warnings such as LOC or SSF are arranged.If the CIP state on the said local end PE equipment is not DOWN, then business is normally transmitted on primary link; If the CIP state on the said local end PE equipment is DOWN, then the access link of local end PE equipment sends Track detection protocol message to opposite end CE equipment.
The changing method of service protection of the present invention sends the method that Track detection protocol message is given opposite end CE equipment through local end PE equipment according to the Track-session layer protocol, the system that realized when link or equipment fault, the beneficial effect of perception fast.
With reference to Fig. 4, Fig. 4 is in the changing method of service protection of the present invention, and opposite end CE equipment receives Track detection protocol message, report and alarm and triggering business and switches the first embodiment schematic flow sheet.As shown in Figure 4, in the changing method of service protection of the present invention, opposite end CE equipment receives Track detection protocol message, report and alarm and triggers the professional step of switching and comprises:
Step S21, opposite end CE equipment are according to the said Track detection protocol message reporting alarm that receives;
Step S22, opposite end CE equipment is according to the pre-configured Switchover mechanism of said alarm triggered, business switched on the reserve link send.
At the CIP state on the local end PE equipment is under the situation of DOWN; The access link of local end PE equipment sends Track detection protocol message to opposite end CE equipment; Opposite end CE equipment is according to the Track detection protocol message reporting alarm that receives and according to the pre-configured Switchover mechanism of said alarm triggered, business switched on the reserve link transmit.
In a preferred embodiment, the access link of said local end PE equipment is 3.3ms to the transmission cycle that opposite end CE equipment sends Track detection protocol message, and said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.In a preferred embodiment, the MC-LAG protection that said pre-configured Switchover mechanism is an access device.
The changing method of service protection of the present invention receives Track detection protocol message, report and alarm and triggers the professional method of switching through opposite end CE equipment; The system that realized when link or equipment fault, the perception beneficial effect that industry be engaged in to be switched of going forward side by side fast.
With reference to Fig. 5, Fig. 5 is in the changing method of service protection of the present invention, and opposite end CE equipment receives Track detection protocol message, report and alarm and triggering business and switches the second embodiment schematic flow sheet.As shown in Figure 5, in the changing method of service protection of the present invention, opposite end CE equipment receives Track detection protocol message, report and alarm and triggering business and switches and also comprise step:
Step S31, judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If, execution in step S32 then; If not, execution in step S33 then;
Step S32, business switched on the primary link normally by reserve link send;
Step S33, the professional continuation are sent on said reserve link.
At the CIP state on the local end PE equipment is under the situation of DOWN, judges whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.In a preferred embodiment, to be local end PE equipment send 3 times of transmission cycle of Track detection protocol message to opposite end CE equipment to said preset time.In a preferred embodiment, said preset time is 9.9ms.
The changing method of service protection of the present invention receives said Track detection protocol message, report and alarm and triggers the professional method of switching through opposite end CE equipment, has realized that the quick perception industry of going forward side by side is engaged in switching and not influencing other professional normal beneficial effects of transmitting of shared this link.
With reference to Fig. 6, Fig. 6 is the structural representation of switching device shifter one embodiment of service protection of the present invention.As shown in Figure 6, the switching device shifter of service protection of the present invention comprises:
Shine upon opening module 01, be used to open the mapping function at professional PW two ends, close the protocol status interlock function of CIP simultaneously;
When having LOC or SSF etc. to alarm on far-end PE equipment access link DOWN or the professional PW; The mapping function that mapping opening module 01 is at first opened the PE equipment at professional PW two ends; Promptly open the mapping function of local end PE equipment and far-end PE equipment, close the state interlock function of CIP simultaneously.In the PTN network, the state of CIP comprises physical state, controlled state and protocol status; In a preferred embodiment, the state interlock function of the said CIP of closing refers to the protocol status interlock function of closing CIP.
Protocol configuration module 02 is used on local end PE equipment configuration association Track-session layer protocol and sends Track detection protocol message according to said Track-session layer protocol and give opposite end CE equipment;
On local end PE equipment, protocol configuration module 02 configuration association Track-session layer protocol.In a preferred embodiment; The related agreement of said Track-session layer comprises CFM (Connectivity Fault Management; The connection fault management) agreement, EFM (Ethernet in the First Mile; First mile Ethernet) agreement, LINK-BFD (LINK-Bidirectional Forwarding Detection, two-way forwarding detects and connects) agreement etc.Protocol configuration module 02 is sent Track detection protocol message according to said Track-session layer protocol and is given opposite end CE equipment.
Professional handover module 03 is used to receive said Track detection protocol message, and report and alarm and triggering business are switched;
After the professional handover module 03 of opposite end CE equipment received said Track detection protocol message, report and alarm and according to the pre-configured Switchover mechanism of said alarm triggered switched business.Said professional handover module 03 report and alarm is specially: if far-end PE equipment access link DOWN, then professional handover module 03 can send mapping message and give local end PE equipment; If warnings such as LOC or SSF are arranged on the professional PW, then professional handover module 03 is mapped as DOWN through OAM-Mapping with the CIP protocol status on the local end PE equipment, but the protocol status of CIP port in fact still is UP (initiate mode) at this moment.
The mapping function of the switching device shifter of service protection of the present invention through opening PW two ends PE equipment, close the state interlock function of CIP and configuration association Track-session layer protocol on local end PE equipment; And opposite end CE equipment is according to the alarm of Track detection protocol message reporting and trigger pre-configured Switchover mechanism; The system that realized is when link or equipment fault, and the perception industry of going forward side by side be engaged in to switch, guarantees that link does not interrupt and do not influence other professional normal beneficial effects of transmitting of shared this link fast.
With reference to Fig. 7, Fig. 7 is the structural representation of protocol configuration module one embodiment in the switching device shifter of service protection of the present invention.As shown in Figure 7, protocol configuration module 02 specifically comprises in the switching device shifter of service protection of the present invention:
Agreement associative cell 021 is used for configuration association Track-session layer protocol on local terminal Provider Edge PE equipment;
State judging unit 022 is used to judge whether the CIP state of local end PE equipment is DOWN; If said CIP state is DOWN, then local end PE equipment sends Track detection protocol message to opposite end CE equipment.
Agreement associative cell 021 with local end PE equipment on protocol status and the said Track-session layer protocol of CIP carry out related after; State judging unit 022 judges whether the CIP state of local end PE equipment is DOWN; This is that opposite end CE equipment is mapped as DOWN through OAM-Mapping with the CIP protocol status on the local end PE equipment because on professional PW, warnings such as LOC or SSF are arranged.If the CIP state on the said local end PE equipment is not DOWN, then business is normally sent on primary link; If the CIP state on the said local end PE equipment is DOWN, then the access link of local end PE equipment sends Track detection protocol message to opposite end CE equipment.
The switching device shifter of service protection of the present invention sends the method that Track detection protocol message is given opposite end CE equipment through local end PE equipment according to the Track-session layer protocol, the system that realized when link or equipment fault, the beneficial effect of perception fast.
With reference to Fig. 8, Fig. 8 is the structural representation of professional handover module first embodiment in the switching device shifter of service protection of the present invention.As shown in Figure 8, professional handover module 03 specifically comprises in the switching device shifter of service protection of the present invention:
Professional switch unit 031 is used for according to the said Track detection protocol message reporting alarm that receives, and triggers pre-configured Switchover mechanism, and business is switched on the reserve link.
At the CIP of local end PE equipment state is under the situation of DOWN; The access link of local end PE equipment sends Track detection protocol message to opposite end CE equipment; The professional switch unit 031 of professional handover module 03 is according to the said Track detection protocol message reporting alarm of receiving; And trigger pre-configured Switchover mechanism, business is switched on the reserve link.
In a preferred embodiment, the access link of said local end PE equipment is 3.3ms to the transmission cycle that opposite end CE equipment sends Track detection protocol message, and said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.In a preferred embodiment, the MC-LAG protection that said pre-configured Switchover mechanism is an access device.
The switching device shifter of service protection of the present invention receives Track detection protocol message, report and alarm and triggers the professional method of switching through opposite end CE equipment; The system that realized when link or equipment fault, the perception beneficial effect that industry be engaged in to be switched of going forward side by side fast.
With reference to Fig. 9, Fig. 9 is the structural representation of professional handover module second embodiment in the switching device shifter of service protection of the present invention.As shown in Figure 9, professional handover module 03 also comprises in the switching device shifter of service protection of the present invention:
Business recovery unit 032 is used to judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.
At the CIP state on the local end PE equipment is under the situation of DOWN, and business recovery unit 032 judges whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.In a preferred embodiment, to be local end PE equipment send 3 times of transmission cycle of Track detection protocol message to opposite end CE equipment to said preset time.In a preferred embodiment, said preset time is 9.9ms.
The switching device shifter of service protection of the present invention receives said Track detection protocol message, report and alarm and triggers the professional method of switching through opposite end CE equipment, has realized that the quick perception industry of going forward side by side is engaged in switching and not influencing other professional normal beneficial effects of transmitting of shared this link.
The mapping function of the changing method of service protection of the present invention through opening PW two ends PE equipment, close the protocol status interlock function of CIP and configuration association Track-session layer protocol on local end PE equipment; And opposite end CE equipment is according to the alarm of Track detection protocol message reporting and trigger pre-configured Switchover mechanism; The system that realized is when link or equipment fault, and the perception industry of going forward side by side be engaged in to switch, guarantees that link does not interrupt and do not influence other professional normal beneficial effects of transmitting of shared this link fast.
The above is merely the preferred embodiments of the present invention; Be not so limit its claim; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.

Claims (10)

1. the changing method of a service protection is characterized in that, may further comprise the steps:
Open the mapping function at professional virtual link PW two ends, simultaneously the protocol status interlock function of shutdown user interface agreement CIP;
Configuration association magnetic track on local terminal Provider Edge PE equipment-session Track-session layer protocol, local end PE equipment sends magnetic track Track detection protocol message according to said Track-session layer protocol and gives opposite end customer edge CE equipment;
Opposite end CE equipment receives said Track detection protocol message, and report and alarm and triggering business are switched.
2. the changing method of service protection according to claim 1 is characterized in that, said local end PE equipment sends Track detection protocol message according to the Track-session layer protocol and specifically comprises for the step of opposite end CE equipment:
Whether the CIP state of judging local end PE equipment is disabled state DOWN; If then local end PE equipment sends Track detection protocol message to opposite end CE equipment.
3. the changing method of service protection according to claim 1 is characterized in that, said opposite end CE equipment receives said Track detection protocol message, report and alarm and triggers the professional step of switching and specifically comprises:
Opposite end CE equipment is alarmed according to the said Track detection protocol message reporting that receives, and triggers pre-configured Switchover mechanism, business is switched on the reserve link send.
4. the changing method of service protection according to claim 3 is characterized in that, also comprises step:
Judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.
5. the changing method of service protection according to claim 1 is characterized in that, said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.
6. the switching device shifter of a service protection is characterized in that, comprising:
Shine upon opening module, be used to open the mapping function at professional PW two ends, close the protocol status interlock function of CIP simultaneously;
The protocol configuration module is used on local end PE equipment configuration association Track-session layer protocol and sends Track detection protocol message according to said Track-session layer protocol and give opposite end CE equipment;
Professional handover module is used to receive said Track detection protocol message, and report and alarm and triggering business are switched.
7. the switching device shifter of service protection according to claim 6 is characterized in that, said protocol configuration module specifically comprises:
The agreement associative cell is used for configuration association Track-session layer protocol on local end PE equipment;
The state judging unit is used to judge whether the CIP state of local end PE equipment is DOWN; If then local end PE equipment sends Track detection protocol message to opposite end CE equipment.
8. the switching device shifter of service protection according to claim 6 is characterized in that, said professional handover module specifically comprises:
Professional switch unit is used for according to the said Track detection protocol message reporting alarm that receives, and triggers pre-configured Switchover mechanism, business is switched on the reserve link send.
9. the switching device shifter of service protection according to claim 8 is characterized in that, said professional handover module also comprises:
The business recovery unit is used to judge whether opposite end CE equipment receives said Track detection protocol message once more in preset time; If then business is switched on the primary link by reserve link and normally sends; If not, then professional continuation is sent on said reserve link.
10. the switching device shifter of service protection according to claim 6 is characterized in that, said Track detection protocol message carries the local timeout flag bit of said local end PE equipment.
CN201210279969.8A 2012-02-29 2012-08-08 Method and device for switching service protection Active CN102820990B (en)

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WO2018077124A1 (en) * 2016-10-27 2018-05-03 中兴通讯股份有限公司 Method, device, and system for service alarm processing
CN108668308A (en) * 2017-03-30 2018-10-16 中国移动通信集团内蒙古有限公司 A kind of LTE PTN transmission nets and its static routing guard method
CN109039685A (en) * 2017-06-12 2018-12-18 中兴通讯股份有限公司 A kind of network management system fault warning mapping configuration method and device
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