CN103997697B - A kind of binary channels POTN linear protecting systems, method and device - Google Patents
A kind of binary channels POTN linear protecting systems, method and device Download PDFInfo
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- CN103997697B CN103997697B CN201410160698.3A CN201410160698A CN103997697B CN 103997697 B CN103997697 B CN 103997697B CN 201410160698 A CN201410160698 A CN 201410160698A CN 103997697 B CN103997697 B CN 103997697B
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Abstract
The invention discloses a kind of twin-channel POTN linear protecting systems, method and device, it is related to POTN apparatus fields.The device establishes module, cell extension header add module, packet cell determining module, OTN service protections module and PTN service protection modules including binary channels；Binary channels is established module and is connected by cell extension header add module with packet cell determining module, and packet cell determining module is connected with OTN service protections module, PTN service protection modules respectively.The present invention can easily and flexibly realize the various protections of PTN business, not only the scope of application is than wide, and is easy to people to use while suitable for Large Copacity OTN business.
Description
Technical field
The present invention relates to POTN apparatus fields, and in particular to a kind of twin-channel POTN linear protecting systems, method and dress
Put.
Background technology
POTN is a kind of OTN/PTN/SDH based on packet switch（Optical transfer network/Packet Transport Network/SDH）
Unified switching architecture equipment.POTN equipment enables to make OTN/PTN/SDH mutually to melt by the combination of different single-decks
Close, and can is enough individually present, and then is provided from the unified solution for being linked into nucleus equipment.
POTN equipment is in use, need to realize the functions such as looped network protection, linear protection and path protection.POTN equipment needs
In the case where supporting manual seamless switching, OTN/PTN/SDH pretection switch is realized within 50ms.For OTN business
For defencive function, POTN equipment needs to support the 1+1 protection of electric layer（Primary path and backup path work simultaneously）Business, and
And need to meet ITUT linear protections standard G.8131.
Shown in Figure 1, the POTN equipment of Large Copacity generally comprises circuit disk, branch road disk and Cross Trade at present；Branch road disk
In the form of cell, OTN business and PTN business are sent to circuit disk by Cross Trade.Therefore, POTN equipment is not in use,
Only need individually to provide linear protection to OTN business or PTN business, and need to provide line to OTN business and PTN business simultaneously
Property protection.
The Cross Trade of existing POTN equipment typically uses ODUk（OpticalChannel Data Unit, digital wrapper
Technology）Or Ethernet intersects, when existing POTN equipment provides linear protection to OTN business and PTN business simultaneously, exist with
Lower defect：
（1）For the POTN equipment intersected using Cross Trade using ODUk, PTN business is carried by ODUk, POTN
Equipment realizes the 1+1 protection to PTN business by realizing the 1+1 protection to ODUk.This mode realizes PTN business
Protect relatively difficult, and the 1 of PTN business:1 protection and looped network protection are difficult to complete, and are not easy to people's use.
（2）For the POTN equipment that Cross Trade is intersected using Ethernet, OTN business is held by Ethernet service
Carry.Although Ethernet while the various protections of PTN business are flexibly realized, can support the defencive function of OTN business,
Ethernet can not meet requirement of the OTN business of Large Copacity to performances such as delay jitters, therefore Cross Trade is intersected using Ethernet
POTN equipment may be only available for the OTN business of low capacity, its scope of application is relatively simple, is not easy to people's use.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of twin-channel POTN linear protections
Method and device, the various protections of PTN business can be easily and flexibly realized, no while suitable for Large Copacity OTN business
The only scope of application is easy to people to use than wide.
To achieve the above objectives, the present invention adopts the technical scheme that：A kind of binary channels POTN linear protecting systems, including
Branch road disk, Cross Trade and circuit disk, branch road disk are connected by Cross Trade with circuit disk；
Branch road disk establishes optical transfer network OTN passages and Packet Transport Network PTN passages, and the numeral for OTN is established in Cross Trade
Wrapper technology ODUK passages and the ethernet channel for PTN, circuit disk establish OTN passages and PTN passages；The OTN of circuit disk
Passage is provided with OTN main ports and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with
PTN logic interfaces；
POTN equipment is respectively existing OTN packet cells and PTN packet cell addition cell extension header；Cell extension header
Multicast MC including the type of service Type for distinguishing PTN business and OTN business, for distinguishing multicast service and unicast service
The destination Dest ID of the destination interface information of mark, the multicast ID for recording multicast service or unicast service；POTN is set
Standby send packet cell to Cross Trade, Cross Trade reads the prolate-headed Type identification fields of cell of current group cell；
If current Type identification fields belong to OTN business, the ODUK passages of Cross Trade expand the cell of current group cell
Type identification fields in exhibition head are arranged to represent the identification field of OTN business, MC mark write-ins are represented to the flag of multicast,
Multicast ID is write in Dest id fields；OTN business is standby according to the OTN main ports and OTN of multicast ID multicasts to circuit disk
OTN ingresses for service, multicast ID, OTN main port and OTN standby ports are formed multicast group by port, circuit disk；In circuit disk
A circuit disk is established on OTN main ports to the primary OTN service paths of branch road disk；On the OTN standby ports of circuit disk
A circuit disk is established to the standby OTN service paths of branch road disk；Judge that primary OTN service paths are not damaged, pass through master
OTN business transmission is carried out with OTN service paths；
If current Type identification fields belong to PTN business, branch road disk creates a VPN vpn service, respectively
The PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk are added to current vpn service；Divide on the PTN passages of circuit disk
Primary label switched LSP paths, standby LSP paths are not established；The ethernet channel of Cross Trade is by the cell of current group cell
Prolate-headed Type identification fields are arranged to represent the identification field of PTN business, MC mark write-ins are represented to the flag of unicast,
The port information of PTN business is write in Dest id fields；Judge that primary LSP paths are not damaged, pass through primary LSP roads
Footpath carries out PTN business transmission.
A kind of binary channels POTN Linear protection methods based on said system, comprise the following steps：
A, OTN passages and PTN passages are established on branch road disk, ODUK passages and use for OTN are established in Cross Trade
In PTN ethernet channel, OTN passages and PTN passages are established on circuit disk；It is primary that the OTN passages of circuit disk are provided with OTN
Port and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with PTN logic interfaces；
B, it is respectively OTN packet cells and PTN packet cell addition cell extension header；Cell extension header includes being used to distinguish
The Type of PTN business and OTN business, for distinguish multicast service and unicast service MC identify, for recording multicast service
The Dest ID of the destination interface information of multicast ID or unicast service；
C, POTN equipment will be grouped cell and send to Cross Trade, and the cell that current group cell is read in Cross Trade is prolate-headed
Type identification fields, if current Type identification fields belong to OTN business, go to step D；If current Type identification fields belong to
PTN business, go to step E；
D, the Type identification fields in the cell extension header of current group cell are arranged to generation by the ODUK passages of Cross Trade
The identification field of table OTN business, MC mark write-ins are represented into the flag of multicast, multicast ID is write in Dest id fields；
OTN business according to multicast ID multicasts to circuit disk OTN main ports and OTN standby ports, circuit disk by OTN ingresses for service,
Multicast ID, OTN main port and OTN standby ports form multicast group；A circuit is established on the OTN main ports of circuit disk
Disk to branch road disk primary OTN service paths；It is standby to branch road disk that a circuit disk is established on the OTN standby ports of circuit disk
With OTN service paths；Judge that primary OTN service paths are not damaged, OTN business biographies are carried out by primary OTN service paths
It is defeated；
E, a vpn service is created on branch road disk, respectively by the PTN logic interfaces of branch road disk, the PTN logic interfaces of circuit disk
Add to current vpn service；Establish primary LSP paths, standby LSP paths respectively on the PTN passages of circuit disk；Cross Trade
The prolate-headed Type identification fields of the cell of current group cell are arranged to represent the identifier word of PTN business by ethernet channel
Section, by MC mark write-in represent unicast flag, in Dest id fields write PTN business port information；Judge primary
LSP paths are not damaged, and PTN business transmission is carried out by primary LSP paths.
On the basis of above-mentioned technical proposal, the Type that OTN business is represented in the cell extension header is identified as 1, represents
The Type of PTN business is identified as 0.
On the basis of above-mentioned technical proposal, step D is further comprising the steps of：Judge that primary OTN service paths damage
It is bad, primary OTN service paths are switched to standby OTN service paths, OTN business transmission is carried out by standby OTN service paths.
On the basis of above-mentioned technical proposal, step E is further comprising the steps of：Judge that primary LSP paths are damaged, will
Primary LSP path switchings carry out PTN business transmission to standby LSP paths by standby LSP paths.
A kind of binary channels POTN linear protection devices for realizing the above method, including binary channels establish module, cell extension
Head add module, packet cell determining module, OTN service protections module, PTN service protection modules；Binary channels is established module and led to
Cell extension header add module is crossed be connected with packet cell determining module, be grouped cell determining module respectively with OTN service protections
Module, PTN service protection modules are connected；
The binary channels establishes module, is used for：OTN passages and PTN passages are established on branch road disk；Established in Cross Trade
Ethernet channel for OTN ODUK passages and for PTN；OTN passages and PTN passages are established on circuit disk；Circuit disk
OTN passages be provided with OTN main ports and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are all provided with
It is equipped with PTN logic interfaces；Cell extension header addition signal is sent to cell extension header add module；
The cell extension header add module, is used for：Receive the cell extension header addition letter that binary channels establishes module transmission
After number, respectively OTN packet cells and PTN packet cell addition cell extension header；Cell extension header include Type, MC identify and
Dest ID；Packet cell, which is sent, to packet cell determining module determines signal；
The packet cell determining module, is used for：The packet cell for receiving the transmission of cell extension header add module determines letter
After number, control POTN equipment will be grouped cell and send to Cross Trade, and the cell that current group cell is read in Cross Trade is prolate-headed
Type identification fields, if current Type identification fields belong to OTN business, OTN service protections letter is sent to OTN service protections module
Number；If current Type identification fields belong to PTN business, PTN service protection signals are sent to PTN service protections module；
The OTN service protections module, is used for：After receiving the OTN service protection signals that packet cell determining module is sent,
Type identification fields in the cell extension header of current group cell are arranged to represent OTN industry by the ODUK passages of control Cross Trade
The identification field of business, MC mark write-ins are represented into the flag of multicast, multicast ID is write in Dest id fields；OTN business is pressed
According to the OTN main ports and OTN standby ports of multicast ID multicasts to circuit disk, circuit disk is by OTN ingresses for service, multicast ID, OTN
Main port and OTN standby ports form multicast group；A circuit disk is established on the OTN main ports of circuit disk to branch road disk
Primary OTN service paths；A circuit disk is established on the OTN standby ports of circuit disk to the standby OTN business of branch road disk
Path；Judge that primary OTN service paths are not damaged, OTN business transmission is carried out by primary OTN service paths；
The PTN service protections module, is used for：After receiving the PTN service protection signals that packet cell determining module is sent,
A vpn service is created on branch road disk, respectively adds the PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk to current
Vpn service；Establish primary LSP paths, standby LSP paths respectively on the PTN passages of circuit disk；The ethernet channel of Cross Trade
The prolate-headed Type identification fields of the cell of current group cell are arranged to represent the identification field of PTN business, identify MC
Write-in represent unicast flag, in Dest id fields write PTN business port information；Judge that primary LSP paths are not sent out
Raw damage, PTN business transmission is carried out by primary LSP paths.
On the basis of above-mentioned technical proposal, the Type identification fields of OTN business are represented in the cell extension header as 1,
The Type identification fields of PTN business are represented as 0.
On the basis of above-mentioned technical proposal, the OTN service protections module, it is additionally operable to：Judge primary OTN service paths
It is damaged, primary OTN service paths is switched to standby OTN service paths, OTN industry is carried out by standby OTN service paths
Business transmission.
On the basis of above-mentioned technical proposal, the PTN service protections module, it is additionally operable to：Judge that primary LSP paths occur
Damage, by primary LSP path switchings to standby LSP paths, PTN business transmission is carried out by standby LSP paths.
Compared with prior art, the advantage of the invention is that：
The branch road disk and circuit disk that the present invention uses are provided with PTN passages, OTN passages；Cross Trade is provided with for OTN
ODUk passages and ethernet channel for PTN.
The present invention is protected by branch road disk and circuit disk OTN passages to OTN business；Pass through Ethernet with prior art
Intersect the OTN service protections realized to compare, intersected when the present invention protects to OTN business by the ODUk of Cross Trade, can
Meet requirement of the OTN business of Large Copacity to performances such as delay jitters, therefore, the present invention can be applied to the OTN industry of Large Copacity
Business, not only the scope of application is than wide, and is easy to people to use.
The present invention is protected by branch road disk and circuit disk PTN passages to PTN business, with passing through ODUk in the prior art
The PTN business for intersecting carrying is compared, and is intersected when the present invention carries out PTN business by the ethernet channel of Cross Trade, using ether
Net loaded PTN business conveniently can neatly realize the various protections of PTN business.
In summary, the present invention, can be suitable for Large Copacity OTN using PTN passages, the dual channel mode of OTN passages
While business, the various protections of PTN business are easily and flexibly realized, not only the scope of application is than wide, and is easy to people
Use.
Brief description of the drawings
Fig. 1 is the connection block diagram of POTN equipment in background of invention；
Fig. 2 is the FB(flow block) of binary channels POTN Linear protection methods in the embodiment of the present invention；
Fig. 3 is the prolate-headed structural representation of cell in the embodiment of the present invention；
Fig. 4 is the FB(flow block) of OTN business 1+1 protections in the embodiment of the present invention；
Fig. 5 is PTN business 1 in the embodiment of the present invention：The FB(flow block) of 1 protection.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 2, the binary channels POTN linear protecting systems in the embodiment of the present invention, including branch road disk, Cross Trade
With circuit disk, branch road disk is connected by Cross Trade with circuit disk.
Binary channels POTN Linear protection methods in the embodiment of the present invention, comprise the following steps：
S1：OTN is established on branch road disk（Optical Transport Network, optical transfer network）Passage and PTN
（Packet Transport Network, Packet Transport Network）Passage；The ODUK passages and use for OTN are established in Cross Trade
In PTN ethernet channel；OTN passages and PTN passages are established on circuit disk.It is primary that the OTN passages of circuit disk are provided with OTN
Port and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with PTN logic interfaces.
S2：Respectively existing OTN packet cells and PTN packet cell addition cell extension header；It is shown in Figure 3, letter
First extension header includes Type（Type of service, for distinguishing PTN business and OTN business）, MC mark（Multicast identifies, for distinguishing
Multicast service and unicast service）、Dest ID（Destination ID, for recording the multicast ID of multicast service or the mesh of unicast service
Port information）.The Type identification fields of OTN business are represented in the embodiment of the present invention as 1, represent the Type marks of PTN business
Field is 0.
S3：POTN equipment will be grouped cell and send to Cross Trade, the cell extension header of Cross Trade reading current group cell
Type identification fields, if current Type identification fields belong to OTN business, need to realize the 1+1 of OTN business（Primary path
Worked simultaneously with backup path）Protection, goes to step S4；If current Type identification fields belong to PTN business, need to realize
The 1 of PTN business:1（Primary path or backup path work）Protection, goes to step S7.
S4：Shown in Figure 4, the ODUK passages of Cross Trade identify the Type in the cell extension header of current group cell
Field is arranged to 1, MC identification fields is arranged to 1, multicast ID is write in Dest id fields.OTN business is according to multicast ID groups
Cast to the OTN main ports and OTN standby ports of circuit disk, circuit disk by OTN ingresses for service, multicast ID, OTN main port and
OTN standby ports form multicast group.
S5：A circuit disk is established on the OTN main ports of circuit disk to the primary OTN service paths of branch road disk；
A circuit disk is established on the OTN standby ports of circuit disk to the standby OTN service paths of branch road disk.
S6：Judge whether primary OTN service paths are damaged, if so, primary OTN service paths are switched to standby
OTN service paths, OTN business transmission is carried out by standby OTN service paths, OTN is otherwise carried out by primary OTN service paths
Business is transmitted.
S7：It is shown in Figure 5, a VPN is created on branch road disk（Virtual Private Network, virtual private
Network）Business, the PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk are added to current vpn service respectively.
S8：Primary LSP is established respectively on the PTN passages of circuit disk（Label Switching Path label switcheds）Road
Footpath, standby LSP paths.The ethernet channel of Cross Trade sets the prolate-headed Type identification fields of the cell of current group cell
It is arranged to 0 for 0, by MC identification fields, the logical port number of PTN business is write in Dest id fields（That is port information）.
S9：Judge whether primary LSP paths are damaged, if so, by primary LSP path switchings to standby LSP paths, by standby
PTN business transmission is carried out with LSP paths；Otherwise PTN business transmission is carried out by primary LSP paths.
Binary channels POTN linear protection devices in the embodiment of the present invention, including binary channels establish module, cell extension header
Add module, packet cell determining module, OTN service protections module, PTN service protection modules；Binary channels is established module and passed through
Cell extension header add module be connected with packet cell determining module, be grouped cell determining module respectively with OTN service protection moulds
Block, PTN service protection modules are connected.
The binary channels establishes module, is used for：OTN passages and PTN passages are established on branch road disk；Established in Cross Trade
Ethernet channel for OTN ODUK passages and for PTN；OTN passages and PTN passages are established on circuit disk；Circuit disk
OTN passages be provided with OTN main ports and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are all provided with
It is equipped with PTN logic interfaces；Cell extension header addition signal is sent to cell extension header add module；
The cell extension header add module, is used for：Receive the cell extension header addition letter that binary channels establishes module transmission
After number, respectively OTN packet cells and PTN packet cell addition cell extension header；Cell extension header include Type, MC identify and
Dest ID；Packet cell, which is sent, to packet cell determining module determines signal；
The packet cell determining module, is used for：The packet cell for receiving the transmission of cell extension header add module determines letter
After number, control POTN equipment will be grouped cell and send to Cross Trade, and the cell that current group cell is read in Cross Trade is prolate-headed
Type identification fields, if current Type identification fields belong to OTN business, OTN service protections letter is sent to OTN service protections module
Number；If current Type identification fields belong to PTN business, PTN service protection signals are sent to PTN service protections module；
The OTN service protections module, is used for：After receiving the OTN service protection signals that packet cell determining module is sent,
Type identification fields in the cell extension header of current group cell are arranged to represent OTN industry by the ODUK passages of control Cross Trade
The identification field of business, MC mark write-ins are represented into the flag of multicast, multicast ID is write in Dest id fields；OTN business is pressed
According to the OTN main ports and OTN standby ports of multicast ID multicasts to circuit disk, circuit disk is by OTN ingresses for service, multicast ID, OTN
Main port and OTN standby ports form multicast group；A circuit disk is established on the OTN main ports of circuit disk to branch road disk
Primary OTN service paths；A circuit disk is established on the OTN standby ports of circuit disk to the standby OTN business of branch road disk
Path；Judge that primary OTN service paths are not damaged, OTN business transmission is carried out by primary OTN service paths；
The PTN service protections module, is used for：After receiving the PTN service protection signals that packet cell determining module is sent,
A vpn service is created on branch road disk, respectively adds the PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk to current
Vpn service；Establish primary LSP paths, standby LSP paths respectively on the PTN passages of circuit disk；The ethernet channel of Cross Trade
The prolate-headed Type identification fields of the cell of current group cell are arranged to represent the identification field of PTN business, identify MC
Write-in represent unicast flag, in Dest id fields write PTN business port information；Judge that primary LSP paths are not sent out
Raw damage, PTN business transmission is carried out by primary LSP paths.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (7)
1. a kind of binary channels POTN linear protecting systems, including branch road disk, Cross Trade and circuit disk, branch road disk by Cross Trade with
Circuit disk connects；It is characterized in that：
Branch road disk establishes optical transfer network OTN passages and Packet Transport Network PTN passages, and the digital wrapper for OTN is established in Cross Trade
Technology ODUK passages and the ethernet channel for PTN, circuit disk establish OTN passages and PTN passages；The OTN passages of circuit disk
It is provided with OTN main ports and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with PTN and patrolled
Collect mouth；
POTN equipment is respectively existing OTN packet cells and PTN packet cell addition cell extension header；Cell extension header includes
For distinguishing the type of service Type of PTN business and OTN business, being marked for distinguishing the multicast MC of multicast service and unicast service
The destination Dest ID of the destination interface information of knowledge, the multicast ID for recording multicast service or unicast service；POTN equipment
Packet cell is sent to Cross Trade, Cross Trade and reads the prolate-headed Type identification fields of cell of current group cell；
If current Type identification fields belong to OTN business, the ODUK passages of Cross Trade are by the cell extension header of current group cell
In Type identification fields be arranged to represent the identification field of OTN business, MC mark write-ins are represented multicast flag,
Field write-in multicast ID in Dest ID；OTN business according to multicast ID multicasts to circuit disk the standby end of OTN main ports and OTN
Mouthful, OTN ingresses for service, multicast ID, OTN main port and OTN standby ports are formed multicast group by circuit disk；In circuit disk
A circuit disk is established on OTN main ports to the primary OTN service paths of branch road disk；On the OTN standby ports of circuit disk
A circuit disk is established to the standby OTN service paths of branch road disk；Judge that primary OTN service paths are not damaged, pass through master
OTN business transmission is carried out with OTN service paths；Judge that primary OTN service paths are damaged, primary OTN service paths are fallen
Standby OTN service paths are shifted to, OTN business transmission is carried out by standby OTN service paths；
If current Type identification fields belong to PTN business, branch road disk creates a VPN vpn service, respectively will branch
The PTN logic interfaces of road disk, the PTN logic interfaces of circuit disk are added to current vpn service；Built respectively on the PTN passages of circuit disk
Stand primary label switched LSP paths, standby LSP paths；The ethernet channel of Cross Trade extends the cell of current group cell
The Type identification fields of head are arranged to represent the identification field of PTN business, MC mark write-ins are represented to the flag of unicast,
The port information of PTN business is write in Dest id fields；Judge that primary LSP paths are not damaged, pass through primary LSP paths
Carry out PTN business transmission；Judge that primary LSP paths are damaged, by primary LSP path switchings to standby LSP paths, by standby
PTN business transmission is carried out with LSP paths.
2. a kind of binary channels POTN Linear protection methods based on system described in claim 1, it is characterised in that including following step
Suddenly：
A, OTN passages and PTN passages are established on branch road disk, is established in Cross Trade for OTN ODUK passages and for PTN
Ethernet channel, OTN passages and PTN passages are established on circuit disk；The OTN passages of circuit disk are provided with OTN main ports
With OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with PTN logic interfaces；
B, it is respectively OTN packet cells and PTN packet cell addition cell extension header；Cell extension header includes being used to distinguish PTN
The Type of business and OTN business, the MC marks for distinguishing multicast service and unicast service, the multicast for recording multicast service
The Dest ID of the destination interface information of ID or unicast service；
C, POTN equipment will be grouped cell and send to Cross Trade, the prolate-headed Type of cell of Cross Trade reading current group cell
Identification field, if current Type identification fields belong to OTN business, go to step D；If current Type identification fields belong to PTN industry
Business, goes to step E；
D, the Type identification fields in the cell extension header of current group cell are arranged to represent OTN by the ODUK passages of Cross Trade
The identification field of business, MC mark write-ins are represented into the flag of multicast, multicast ID is write in Dest id fields；OTN business
According to the OTN main ports and OTN standby ports of multicast ID multicasts to circuit disk, circuit disk by OTN ingresses for service, multicast ID,
OTN main ports and OTN standby ports form multicast group；A circuit disk is established on the OTN main ports of circuit disk to branch
The primary OTN service paths of road disk；A circuit disk is established on the OTN standby ports of circuit disk to the standby OTN of branch road disk
Service path；Judge that primary OTN service paths are not damaged, OTN business transmission is carried out by primary OTN service paths；
E, a vpn service is created on branch road disk, respectively adds the PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk
To current vpn service；Establish primary LSP paths, standby LSP paths respectively on the PTN passages of circuit disk；The ether of Cross Trade
The prolate-headed Type identification fields of the cell of current group cell are arranged to represent the identification field of PTN business, incited somebody to action by Netcom road
MC mark write-ins represent the flag of unicast, the port information in Dest id fields write-in PTN business；Judge primary LSP paths
It is not damaged, PTN business transmission is carried out by primary LSP paths.
3. binary channels POTN Linear protection methods as claimed in claim 2, it is characterised in that：Represented in the cell extension header
The Type of OTN business is identified as 1, and the Type for representing PTN business is identified as 0.
A kind of 4. binary channels POTN linear protection devices for realizing Claims 2 or 3 methods described, it is characterised in that：Including double
Path setup module, cell extension header add module, packet cell determining module, OTN service protections module, PTN service protections
Module；Binary channels is established module and is connected by cell extension header add module with packet cell determining module, and packet cell determines
Module is connected with OTN service protections module, PTN service protection modules respectively；
The binary channels establishes module, is used for：OTN passages and PTN passages are established on branch road disk；Establish and be used in Cross Trade
OTN ODUK passages and the ethernet channel for PTN；OTN passages and PTN passages are established on circuit disk；The OTN of circuit disk
Passage is provided with OTN main ports and OTN standby ports；The PTN passages of branch road disk and the PTN passages of circuit disk are provided with
PTN logic interfaces；Cell extension header addition signal is sent to cell extension header add module；
The cell extension header add module, is used for：Receive binary channels establish module transmission cell extension header addition signal after,
Respectively OTN is grouped cell and PTN packet cell addition cell extension header；Cell extension header includes Type, MC mark and Dest
ID；Packet cell, which is sent, to packet cell determining module determines signal；
The packet cell determining module, is used for：Receive cell extension header add module transmission packet cell determine signal after,
Control POTN equipment will be grouped cell and send to Cross Trade, and the prolate-headed Type marks of cell of current group cell are read in Cross Trade
Character learning section, if current Type identification fields belong to OTN business, OTN service protection signals are sent to OTN service protections module；If
Current Type identification fields belong to PTN business, and PTN service protection signals are sent to PTN service protections module；
The OTN service protections module, is used for：After receiving the OTN service protection signals that packet cell determining module is sent, control
Type identification fields in the cell extension header of current group cell are arranged to represent OTN business by the ODUK passages of Cross Trade
Identification field, MC mark write-ins are represented into the flag of multicast, multicast ID is write in Dest id fields；OTN business is according to group
It is to the OTN main ports and OTN standby ports of circuit disk, circuit disk that OTN ingresses for service, multicast ID, OTN is primary to broadcast ID multicasts
Port and OTN standby ports form multicast group；A circuit disk is established on the OTN main ports of circuit disk to the master of branch road disk
With OTN service paths；A circuit disk is established on the OTN standby ports of circuit disk to the standby OTN service paths of branch road disk；
Judge that primary OTN service paths are not damaged, OTN business transmission is carried out by primary OTN service paths；
The PTN service protections module, is used for：After receiving the PTN service protection signals that packet cell determining module is sent, propping up
A vpn service is created on the disk of road, respectively adds the PTN logic interfaces of the PTN logic interfaces of branch road disk, circuit disk to current VPN
Business；Establish primary LSP paths, standby LSP paths respectively on the PTN passages of circuit disk；The ethernet channel of Cross Trade will
The prolate-headed Type identification fields of cell of current group cell are arranged to represent the identification field of PTN business, write MC marks
Enter to represent the flag of unicast, in Dest id fields write PTN business port information；Judge that primary LSP paths do not occur
Damage, PTN business transmission is carried out by primary LSP paths.
5. binary channels POTN linear protection devices as claimed in claim 4, it is characterised in that：Represented in the cell extension header
The Type identification fields of OTN business are 1, represent the Type identification fields of PTN business as 0.
6. binary channels POTN linear protection devices as claimed in claim 4, it is characterised in that：The OTN service protections module,
It is additionally operable to：Judge that primary OTN service paths are damaged, primary OTN service paths are switched to standby OTN service paths, lead to
Cross standby OTN service paths and carry out OTN business transmission.
7. binary channels POTN linear protection devices as claimed in claim 4, it is characterised in that：The PTN service protections module,
It is additionally operable to：Judge that primary LSP paths are damaged, by primary LSP path switchings to standby LSP paths, pass through standby LSP paths
Carry out PTN business transmission.
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| CN105897451B (en) * | 2015-01-26 | 2019-12-06 | 中国移动通信集团内蒙古有限公司 | OTN dispatching system and fault processing method |
| CN105282631B (en) * | 2015-09-15 | 2018-10-30 | 烽火通信科技股份有限公司 | The system and method for electric layer linear protection is realized in POTN |
| CN105306253B (en) * | 2015-09-21 | 2019-01-18 | 烽火通信科技股份有限公司 | The pretection switch system and method that branch in optical transfer network and route protection are combined |
| CN105656668B (en) * | 2015-12-31 | 2019-01-25 | 北京格林伟迪科技股份有限公司 | Ether business transmitting method and device |
| CN107483141B (en) * | 2016-06-08 | 2019-06-04 | 中国电信股份有限公司 | Ethernet link method for building up and controller |
| CN107135154B (en) * | 2017-05-26 | 2019-08-06 | 烽火通信科技股份有限公司 | POTN business repeater system and business forwarding, configuration distributing, guard method |
| CN107171720A (en) * | 2017-05-27 | 2017-09-15 | 烽火通信科技股份有限公司 | The Packet Service alarm alignment system and method for a kind of POTN equipment |
| CN107612826B (en) * | 2017-09-28 | 2020-01-07 | 烽火通信科技股份有限公司 | Method for realizing superposition protection of PTN1:1 and OTN1+1 |
| CN108092734B (en) * | 2017-11-13 | 2019-08-16 | 广州供电局有限公司 | Electric power data transmission device, system and detection method |
| CN110365606A (en) * | 2018-04-09 | 2019-10-22 | 中兴通讯股份有限公司 | Data service handling method, device, optical transmission device and storage medium |
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