CN101938419A - Link state delivery method and device of packet transport network - Google Patents
Link state delivery method and device of packet transport network Download PDFInfo
- Publication number
- CN101938419A CN101938419A CN2010102806048A CN201010280604A CN101938419A CN 101938419 A CN101938419 A CN 101938419A CN 2010102806048 A CN2010102806048 A CN 2010102806048A CN 201010280604 A CN201010280604 A CN 201010280604A CN 101938419 A CN101938419 A CN 101938419A
- Authority
- CN
- China
- Prior art keywords
- far
- link
- client layer
- public network
- message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a link state delivery method and a device of a packet transport network. The method comprises the following steps: a home-terminal service provider edge PE receives a client layer signal failure message (CSF) from a far end PE for the first time; the physical port of the home-terminal user network interface (UNI) is closed; the far-end link of a home terminal indicates a position site, wherein the far-end link indication site is used for indicating that the link state from a far-end CE to the far-end PE is disconnected. The invention discloses a link state delivery device of a packet transport network. In the invention, the far-end link indication site is additionally arranged on a UNI physical port and is used for recording that the disconnection of the UNI physical port of a CE-PE link is caused by the home terminal or the far end; and when the UNI physical port disconnection is caused by home terminal or the far end, the signal failure message is not triggered to the far end so as to avoid the phenomenon that two ends continuously send the signal failure message, solve the problem of deadlock and improve system reliability.
Description
Technical field
The present invention relates to PTN (Packet Transport Network, Packet Transport Network) field, in particular to a kind of Link State transmission method and device of Packet Transport Network.
Background technology
T-MPLS (Transport Multi-Protocol Label Switching, transmit multiprotocol label switching) be one of main grouping tranmission techniques, T-MPLS has stronger OAM (Operation Administration and Maintenance, Operations, Administration and Maintenance) ability, by G8113 and G8114 definition, alarm management, performance management and other management tool are provided.
The PTN network traffic model is: at user side, the real port binding of physics advances UNI (Usernetwork interface, User Network Interface), and UNI binds into CIP (CustomerInstance Port, client instance port); In the public network side, VIP (Virtual Instance Port, virtual instance port) is advanced in PW (Pseudo Wire, pseudo-line) and tunnel (tunnel) binding; CIP and VIP bind into again, and the service example carries out unified management.
CSF (Client Signal Failure, Client Signal Fail) is the T-MPLS OAM(Operation Administration Maintenance) that defines among the G8114, is mainly used in to transmit a Client Signal Fail indication, and this indication is to mail to far-end PTN client to compile adaptive point.
When there is protection in business; the provider edge equipment of network one end (Provider Edge is called for short PE) detects fault, can switch to the protection path by OAM message notifying remote service merchant edge device PE; customer edge (Client Edge is called for short CE) is without perception.But, just be necessary to make opposite end customer edge CE to perceive fault and exist, thereby Business Stream is effectively managed in the scene that does not have protection.
Link State transmits (Link Status Transparent, be called for short LST) be meant when the inefficacy of near end customer layer input signal, then can be with this state transfer to far-end, and with far-end UNI (User network interface, User Network Interface) port is forced to disconnect, and promptly the state of near-end CE-PE link can be incorporated into the state of far-end CE-PE link by this transfer mode.
The inventor finds that there is following problem at least in existing LST mechanism: since the disconnection that PE can not differentiate the local terminal uni port be cause by local terminal or cause by far-end, occur two ends easily and continue sending out the phenomenon of CSF message, thereby cause deadlock; When two ends CE-PE link when certain period disconnects simultaneously, the Signal Fail message can not effectively trigger, the failure state of an end can not be passed to the opposite end, thereby goes out the skimble-scamble problem of present condition; In addition, existing LST mechanism can only be transmitted the client layer disablement signal of CE-PE, and the disablement signal of PE-PE can't be transmitted.
Summary of the invention
Main purpose of the present invention is to provide a kind of Link State transmission method and device of Packet Transport Network, to solve an above-mentioned problem at least.
According to an aspect of the present invention, provide a kind of Link State transmission method of Packet Transport Network, may further comprise the steps: local end PE receives the client layer signal inefficacy message CSF from far-end PE first; The physical port of the User Network Interface UNI of local terminal is closed; With the far-end link indicator set of local terminal, wherein, the far-end link indicator be used for indicating remote CE to the Link State of far-end PE for disconnecting.
Further, also comprise: when local end PE is not received the CSF message that far-end PE sends at the fixed time in the section, the far-end link indicator is resetted, and the physical port of UNI is opened after the far-end link indicator set of local terminal.
Further, before opening, the physical port of UNI also comprises: detect public network client layer signal state, when the public network client layer signal is in effective status, the physical port of UNI is opened.
Further, the far-end link indicator is arranged on the physical port of User Network Interface UNI of local terminal.
According to a further aspect in the invention, provide a kind of Link State transmission method of Packet Transport Network, may further comprise the steps: detect local terminal CE to the Link State of local end PE for disconnecting; Judge the whether set of far-end link indicator of local terminal; If the not set of far-end link indicator, then local end PE sends client layer signal inefficacy message CSF to far-end PE with predetermined time interval.
Further, sending the CSF message in local end PE with predetermined time interval also comprised to far-end PE: judge whether the public network client layer signal is in effective status, only when the public network client layer signal was in effective status, local end PE just sent the CSF message to far-end PE with predetermined time interval.
Further, send the CSF message in local end PE with predetermined time interval and to far-end PE equipment, also comprise: when detecting the Link State of local terminal CE and serve as connection, then stop to send the CSF message to far-end PE equipment to local end PE.
In accordance with a further aspect of the present invention, provide a kind of Link State transmission method of Packet Transport Network, may further comprise the steps: detected local end PE first when the public network client layer signal of far-end PE is in failure state, then close the UNI physical port of local terminal; Detect local end PE first when the public network client layer signal failure state of far-end PE disappears, then further judge the whether set of far-end link indicator of local terminal UNI physical port; Only, then open the UNI physical port of local terminal when far-end link indicator during for set not.
Further, before PE detects public network client layer signal state, also comprise: Operations, Administration and Maintenance message OAM is deployed on the public network client layer, detects public network client layer signal state by OAM.
Further, before PE detects public network client layer signal state, also comprise: the OAM message is deployed in the public network service layer binding relationship of record public network service layer and public network client layer, and opening failure signal breeding function detects public network client layer signal state by OAM.
Further, disposing the OAM message also comprises: the out-of-service time of configuration OAM message and transmission are at interval.
Further, the OAM message is a T-MPLS OAM message.
According to an aspect of the present invention, a kind of Link State transfer device of Packet Transport Network is provided, comprise: receiver module, be used to receive client layer signal inefficacy message CSF from far-end PE, and judge that whether the CSF message is for receiving first, if, then with this CFS message informing first administration module; First administration module is used for the physical port of the User Network Interface UNI of local terminal being closed and with the far-end link indicator set of local terminal according to the CFS message that is received; Wherein, the far-end link indicator be used for indicating remote CE to the Link State of far-end PE for disconnecting.
According to a further aspect in the invention, a kind of Link State transfer device of Packet Transport Network is provided, comprise: second detection module, be used to detect the Link State of local terminal customer edge CE, and detected local terminal CE is sent to second administration module to the link-state information of local end PE to local terminal Provider Edge equipment PE; Second administration module is used to receive and judges link-state information from second detection module, when Link State for disconnecting and the far-end link indicator of local terminal not during set, send client layer signal inefficacy message CSF to far-end PE with predetermined time interval.
In accordance with a further aspect of the present invention, a kind of Link State transfer device of Packet Transport Network is provided, comprise: the 3rd detection module is used to detect the public network client layer signal state of local end PE to far-end PE, and public network client layer signal state information is sent the 3rd administration module; The 3rd administration module is used to receive and judges public network client layer signal state information from the 3rd detection module, when the public network client layer signal is in failure state, closes the UNI physical port of local terminal; When public network client layer signal failure state disappears and the far-end link indicator of local terminal not during set, open the UNI physical port of local terminal.
By the present invention, employing is newly-increased far-end link indicator on the UNI physical port, the UNI physical port that writes down the CE-PE link by this sign position disconnect be to cause by local terminal or far-end causes, when the UNI physical port disconnects is when being caused by far-end, triggering signal inefficacy message is not to far-end, thereby avoided the lasting phenomenon in two ends, solved the problem of deadlock, improved the reliability of system signalling inefficacy message.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the business model structural representation of the Link State pass through mechanism of the embodiment of the invention;
Fig. 2 shows the reception flow chart of Link State transmission method of the CE-PE of the embodiment of the invention;
Fig. 3 shows the apparatus structure schematic diagram that is used to realize method of reseptance shown in Figure 2;
Fig. 4 shows the transmission flow figure of Link State transmission method of the CE-PE of the embodiment of the invention;
Fig. 5 shows the apparatus structure block diagram that is used to realize sending method shown in Figure 4;
Fig. 6 shows the Link State conveying flow figure of the PE1-PE2 of the embodiment of the invention;
Fig. 7 shows the apparatus structure block diagram that is used to realize Link State transmission method shown in Figure 4;
Fig. 8 is the process chart that detects the generation/disappearance of CE-PE link failure that the embodiment of the invention one provides;
Fig. 9 is the process chart that receives the generation/disappearance of far-end CE-PE link failure that the embodiment of the invention two provides;
Figure 10 is the process chart of disposing detection client layer signal state between PE 1-PE2 that the embodiment of the invention three provides;
Figure 11 is the process chart to detected client layer signal state between PE1-PE2 that the invention process four provides.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 1 shows the business model structural representation of the Link State pass through mechanism of the embodiment of the invention, as shown in Figure 1, CE 1 and CE2 are customer edge, PE 1 and PE2 are Provider Edge equipment, at user side, the real port binding of physics advances UNI, in the public network side, foundation through the T-MPLS double-layer label forward-path (LSP) of P node to PE2, comprises client layer and service layer from PE1.
Fig. 2 shows the reception flow chart of Link State transmission method of the CE-PE of the embodiment of the invention, may further comprise the steps:
Step S202, local terminal Provider Edge equipment PE receive the client layer signal inefficacy message CSF from far-end PE first.
Step S204 closes the physical port of the User Network Interface UNI of local terminal.
Step S206, with the far-end link indicator set of local terminal, wherein, the far-end link indicator be used for indicating remote CE to the Link State of far-end PE for disconnecting.
In said method, by increase that UNI physical port that a far-end link indicator writes down the CE-PE link disconnect to be to be caused by local terminal or far-end causes, when the UNI physical port disconnects is when being caused by far-end, triggering signal inefficacy message is not to far-end, thereby avoided the lasting phenomenon in two ends, solved the problem of the easy deadlock of state transfer in the existing transmission net effectively signalling inefficacy message.
In above-mentioned method, after step S206, also comprise: when local end PE is not received the CSF message that far-end PE sends at the fixed time in the section, the far-end link indicator is resetted, and the physical port of UNI is opened.Before the physical port of UNI is opened, can detect public network client layer signal state earlier, when the public network client layer signal is in effective status, just the physical port of UNI be opened.
In said method, the far-end link indicator can be arranged on the physical port of User Network Interface UNI of local terminal.
Fig. 3 shows the apparatus structure schematic diagram that is used to realize method of reseptance shown in Figure 2, as shown in Figure 3, this device comprises: the receiver module 10 and first administration module 11, receiver module 10 is connected with first administration module 11, wherein, receiver module 10 is used to receive the client layer signal inefficacy message CSF from far-end PE, and judges that whether the CSF message is for receiving first, if, then with this CFS message informing first administration module; First administration module 11 is used for the physical port of the User Network Interface UNI of local terminal being closed and with the far-end link indicator set of local terminal according to the CFS message that is received; Wherein, the far-end link indicator be used for indicating remote CE to the Link State of far-end PE for disconnecting.
Fig. 4 shows the transmission flow figure of Link State transmission method of the CE-PE of the embodiment of the invention, may further comprise the steps:
Step S402, detect local terminal customer edge CE to the Link State of local terminal Provider Edge equipment PE for disconnecting.
Step S404 judges the whether set of far-end link indicator of local terminal.
Step S406, if the not set of far-end link indicator of local terminal, then local end PE sends client layer signal inefficacy message CSF to far-end PE with predetermined time interval.
In said method, when the set of UNI physical port distal marker, although this node CE-PE is in the state of disconnection, also not triggering signal inefficacy message to far-end, only at the far-end link indicator not under the situation of set, just triggering signal inefficacy message could guarantee effective triggering of Signal Fail message like this to far-end, exists certain period to disconnect simultaneously and the state that causes can't reunification thereby solved the two ends link effectively.
In above-mentioned steps S402, the CE-PE Link State can pass through Ethernet physics end
The mouth module regularly detects, and does not have special OAM message.
In above-mentioned method, send the CSF message with predetermined time interval to the far-end PE in local end PE, can judge further whether the public network client layer signal is in effective status, only when the public network client layer signal was in effective status, local end PE just sent the CSF message to far-end PE with predetermined time interval.
In above-mentioned method, after step S406, also comprise: when local terminal CE to the Link State of local end PE when recovering to connect, then stop to send the CSF message to far-end PE equipment.
Fig. 5 shows the apparatus structure block diagram that is used to realize sending method shown in Figure 4, as shown in Figure 5, this device comprises, second detection module 20 and second administration module 30, second detection module 20 and second administration module 30 are coupled, second detection module 20 is used to detect the physical state of CE-PE link, and notifies second administration module 30 with detected Link State.Second administration module 30 carries out the management of physical state and the transmission of inefficacy message/stop according to received client layer signal state.In the present embodiment, second administration module 30 is sending client layer signal inefficacy message CSF to the far-end PE, also need to judge the whether set of far-end link indicator of local terminal, when the far-end link indicator of local terminal not during set, just send client layer signal inefficacy message CSF to far-end PE with predetermined time interval.
Fig. 6 shows the Link State conveying flow figure of the PE1-PE2 of the embodiment of the invention, may further comprise the steps:
Step S602 when detecting the public network client layer signal of local end PE 1 to far-end PE 2 first and be in failure state, then closes the UNI physical port of local terminal.
Step S604 when detecting the public network client layer signal failure state of local end PE 1 to far-end PE 2 first and disappear, then further judges the whether set of far-end link indicator of local terminal UNI physical port.
Step S606 when far-end link indicator set, does not then deal with; When far-end link indicator during, then open the UNI physical port of local terminal for set not.
In above-mentioned method, by detecting PE1-PE2 client layer signal state, and open or close UNI physical port state according to PE1-PE2 client layer signal state, make customer edge CE can perceive the signal condition of public network client layer, solved the problem that to transmit of PE1-PE2 disablement signal, the scope that the client layer signal that expanding needs transmission lost efficacy.
In above-mentioned method, before step S602, also comprise: Operations, Administration and Maintenance message OAM is deployed on the public network client layer, detects public network client layer signal state by OAM.
In above-mentioned method, the OAM message can also be deployed in the public network service layer, the binding relationship of record public network service layer and public network client layer, and opening failure signal breeding function detect public network client layer signal state by OAM.
In above-mentioned method, dispose the OAM message and also comprise: the out-of-service time of configuration OAM message and transmission are at interval.
In above-mentioned method, the OAM message is preferably T-MPLS OAM message.
Fig. 7 shows the apparatus structure block diagram that is used to realize Link State transmission method shown in Figure 4, and as shown in Figure 7, this device comprises: the 3rd detection module 40 and the 3rd administration module 50.The 3rd detection module 40 and the 3rd administration module 50 are coupled, whether the OAM message that the 3rd detection module 40 is disposed according to network side detects the PE1-PE2 client layer signal normal, and with state notifying the 3rd administration module 50, the 3rd administration module 50 is according to PW client layer signal state between PE1-PE2, close or open this node CE-PE service port, that is: when PE 1-PE2 client layer enters the SF state, close the UNI physical port; When PE 1-PE2 client layer when the SF state is eliminated, open UNI physical port state.
It is tunnel or link layer that the 3rd detection module 40 can be deployed in service layer according to difference detection demand, also can be deployed in client layer.If be deployed in service layer, need the binding relationship of record service layer tunnel or link layer and client layer PW, and breeding function is opened in configuration.When detecting the client layer signal state variation, the notice Management Unit is handled.The OAM detection messages of disposing between PE1-PE2 can be used T-MPLS OAM message.
Before the 3rd administration module 50 is opened the UNI physical ports, need further to judge the whether set of far-end link indicator of UNI physical port, when the set of far-end link indicator, represent that the far-end link is unreachable, then do not open the UNI physical port; When described far-end link indicator during, then open the UNI physical port of local terminal for set not.
Embodiment one
As shown in Figure 8, present embodiment has been described detection of CE1-PE1 service port signal condition and management.
When the CE1-PE1 link failure produces, carry out following steps:
Step S802 judges whether to detect first the CE1-PE1 linkdown, if, execution in step S804 then.
Step S804 judges further whether the UNI physical port puts the far-end link indicator, if set illustrates that the CE1-PE1 linkdown is the transmission of far-end Link State, does not then process directly and returns, to prevent deadlock.
Step S806 if the distal marker position is empty, judges further whether the public network client layer is in the SF state, if client layer lost efficacy, does not then process directly and returns.
Step S808 neither the also non-public network of far-end link causes that partly but this node of CE1-PE1 link is unusual, then sends the CSF message to far-end PE 2 equipment as uni port down.
When the CE1-PE1 link failure disappears, carry out following steps:
Step S810 judges whether to detect first CE1-PE1 link up.
If step S812 for detecting CE1-PE1 link up first, then stops to send the CSF message to far-end PE 2 equipment.
Embodiment two
As shown in Figure 9, present embodiment has been described client's service condition management of far-end PE 2.
When the CE1-PE1 link defective that receives the PE1 transmission produces announcement, carry out following steps:
Step S902 judges whether the CSF message of receiving that first PE1 sends over.
Step S904 if receive the CSF message first, illustrates far-end CE1-PE1 link down, then the UNI physical port of local terminal is put the distal marker position.
Step S906, whether the UNI physical port of judging CE2-PE2 down, if CE2-PE2 port down does not process, returns.
Step S908 if the UNI physical port of CE2-PE2 is up, then closes the UNI physical port, and it is unreachable that subscriber equipment CE2 can perceive remote user equipment CE1.
When the CE1-PE1 link defective that receives the PE1 transmission disappears announcement, carry out following steps:
Step S910 judges whether that the scheduled time do not receive the CSF message that PE1 sends;
Step S912 is if then the UNI physical port distal marker that CE2-PE2 is held is aging resets.
Step S914 judges further this moment, whether the public network client layer was in the SF state, if being in SF state description PE1-PE2 is in failure state, CE1-PE2 is still unreachable, does not deal with directly and returns.
Step S916 when the public network client layer signal is in effective status, opens the UNI physical port.
Step S918, check the UNI physical port state that port module regularly detects, find to exist abnormal conditions (breaking) if detect such as netting twine, then UNI physical port down is fallen, trigger the CSF message to far-end PE 1 node, promptly have a port status oscillation period this moment, time length and port module regularly detection time relevant, generally detect scheduled time that the CSF message stops paying out greater than port timing detection time; If detection is no abnormal, the UNI physical port is unlocked, and CE2 equipment perceives far-end CE1 equipment and can reach.
Embodiment three
As shown in figure 10, present embodiment has been described the detection of public network part PE1-PE2 client layer signal.
The detection of public network part client layer signal can be deployed in the service layer, comprises tunnel and link layer, at this moment needs to write down the binding relationship of service layer tunnel or link layer and client layer, is used for breeding disablement signal; Also can be deployed on the client layer PW.Can select according to different demands.
Step S1002, whether webmaster wishes that the OAM message is operated in service layer, need pay close attention to the state of service layer and client layer simultaneously.
Step S1004, if, then dispose the OAM detection messages and be operated in service layer, the predetermined out-of-service time of configuration etc., and open breeding function, when service layer detects inefficacy, can breed client layer.
Step S1006 judges whether the public network client layer enters the SF state or the SF state is eliminated, and criterion is preferably used T-MPLS OAM judgment principle.
Step S1008, output public network client layer judged result.
Can also adopt another detection method in the present embodiment, step is as follows:
Step S1010, webmaster only is concerned about the signal condition of PW layer;
Step S1012, if, then dispose the OAM detection messages and be operated in client layer, and the predetermined out-of-service time of configuration, interval etc. sent, then execution in step S1006 and step S1008.
Embodiment four
As shown in figure 11, present embodiment has been described the transmission of public network part PE1-PE2 client layer signal state.
Step S1102 judges whether that public network client layer SF state produces first.
Step S1104, if, then close the CE-PE physical port, be indifferent to distal marker this moment.
It is unreachable that step S1106, CE perceive far-end, no longer carries out service traffics and send.
Step S1108 judges whether that public network client layer SF state disappears first.
Step S1110 is if need then further to judge whether the UNI physical port puts distal marker, if put, the CE1-PE1 Client Signal Fail is described, CE1-PE2 is still unreachable, does not then process and returns;
Step S1112, if the not set of far-end link indicator, promptly the far-end link indicator is empty, then opens the UNI physical port.
Step S1114, CE perceive far-end and can reach, and open service traffics and send.
By the above embodiment of the present invention, in the newly-increased distal marker agreement position of UNI physical port, minute book node CE-PE link physical down is that this node causes or far-end causes.If receive the CSF message of far-end, then this node UNI physical port is put the distal marker position; If predetermined period is not received the CSF message, this distal marker position is aging to be resetted, thereby has solved the problem of the easy deadlock of Link State transmission in the existing PTN network.
Pass through the above embodiment of the present invention, when the set of UNI physical port distal marker, although this node CE-PE is in the state of down, also not triggering signal inefficacy message to far-end, but wear out when resetting in the distal marker position by the time, if this moment, the UNI physical port still was in abnormality, then this moment again triggering signal inefficacy message to far-end, thereby solved that there is certain section while time down in the two ends link and the state that causes can't reunification.
Pass through the above embodiment of the present invention, be used to detect PE1-PE2 client layer signal state at public network client layer or service layer's deployment OAM message, open or close UNI physical port state according to PE1-PE2 client layer signal state, make customer edge CE can perceive the signal condition of public network client layer, solved the problem that to transmit of PE1-PE2 disablement signal, the scope that the client layer signal that expanding needs transmission lost efficacy.
The present invention has provided the implementation method that Link State transmits, expand the scope that Link State transmits that defined, make customer edge can perceive the state of remote subscriber edge device to this node provider edge equipment, guaranteed the ability that security data packet is handled on the one hand, on the other hand, the difficulty and the reliability that has improved system of grid monitoring have been reduced.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. the Link State transmission method of a Packet Transport Network is characterized in that, comprising:
Local terminal Provider Edge equipment PE receives the client layer signal inefficacy message CSF from far-end PE first;
The physical port of the User Network Interface UNI of local terminal is closed;
With the far-end link indicator set of local terminal, wherein, described far-end link indicator be used for indicating remote CE to the Link State of described far-end PE for disconnecting.
2. Link State transmission method according to claim 1 is characterized in that, also comprises after the far-end link indicator set with local terminal:
When described CSF message that described local end PE does not receive at the fixed time that described far-end PE sends in the section, described far-end link indicator is resetted, and the physical port of described UNI is opened.
3. Link State transmission method according to claim 2 is characterized in that, also comprises before the physical port of described UNI is opened:
Detect public network client layer signal state, when described public network client layer signal is in effective status, the physical port of described UNI is opened.
4. according to each described Link State transmission method of claim 1 to 3, it is characterized in that described far-end link indicator is arranged on the physical port of User Network Interface UNI of local terminal.
5. the Link State transmission method of a Packet Transport Network is characterized in that, comprising:
Detect local terminal customer edge CE to the Link State of local terminal Provider Edge equipment PE for disconnecting;
Judge the whether set of far-end link indicator of local terminal;
If the not set of described far-end link indicator, then described local end PE sends client layer signal inefficacy message CSF to described far-end PE with predetermined time interval.
6. Link State transmission method according to claim 5 is characterized in that, sends described CSF message with predetermined time interval in described local end PE and also comprises to described far-end PE:
Judge whether the public network client layer signal is in effective status, only when described public network client layer signal was in effective status, described local end PE just sent described CSF message to described far-end PE with predetermined time interval.
7. Link State transmission method according to claim 5 is characterized in that, sends described CSF message with predetermined time interval in local end PE and also comprises to described far-end PE equipment:
When detect described local terminal CE to the Link State of described local end PE when connecting, then stop to send described CSF message to described far-end PE equipment.
8. the Link State transmission method of a Packet Transport Network is characterized in that, comprising:
Detect local end PE first when the public network client layer signal of far-end PE is in failure state, then close the UNI physical port of local terminal;
When detecting described local end PE to the public network client layer signal failure state of described far-end PE first and disappearing, then further judge the whether set of far-end link indicator of local terminal UNI physical port;
Only, then open the UNI physical port of described local terminal when described far-end link indicator during for set not.
9. Link State transmission method according to claim 8 is characterized in that, before PE detects public network client layer signal state, also comprises:
Operations, Administration and Maintenance message OAM is deployed on the public network client layer, detects described public network client layer signal state by described OAM.
10. Link State transmission method according to claim 8 is characterized in that, before PE detects public network client layer signal state, also comprises:
The OAM message is deployed in the public network service layer, writes down the binding relationship of described public network service layer and public network client layer, and opening failure signal breeding function, described public network client layer signal state detected by described OAM.
11. according to claim 9 or 10 described Link State transmission methods, it is characterized in that, dispose described OAM message and also comprise: dispose the out-of-service time of described OAM message and send the interval.
12. Link State transmission method according to claim 11 is characterized in that, described OAM message is a T-MPLS OAM message.
13. the Link State transfer device of a Packet Transport Network is characterized in that, comprising:
Receiver module is used to receive the client layer signal inefficacy message CSF from far-end PE, and judges described CSF message whether for receiving first, if, then with this CFS message informing first administration module;
Described first administration module is used for the physical port of the User Network Interface UNI of local terminal being closed and with the far-end link indicator set of local terminal according to the CFS message that is received; Wherein, described far-end link indicator be used for indicating remote CE to the Link State of described far-end PE for disconnecting.
14. the Link State transfer device of a Packet Transport Network is characterized in that, comprising:
Second detection module is used to detect the Link State of local terminal customer edge CE to local terminal Provider Edge equipment PE, and detected described local terminal CE is sent to second administration module to the link-state information of local end PE;
Described second administration module, be used to receive and judge described link-state information from described second detection module, when described Link State for disconnecting and the far-end link indicator of local terminal not during set, send client layer signal inefficacy message CSF to far-end PE with predetermined time interval.
15. the Link State transfer device of a Packet Transport Network is characterized in that, comprising:
The 3rd detection module is used to detect the public network client layer signal state of local end PE to far-end PE, and described public network client layer signal state information is sent the 3rd administration module;
Described the 3rd administration module is used to receive and judges described public network client layer signal state information from described the 3rd detection module, when described public network client layer signal is in failure state, closes the UNI physical port of local terminal; When described public network client layer signal failure state disappears and the far-end link indicator of local terminal not during set, open the UNI physical port of described local terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806048A CN101938419A (en) | 2010-09-10 | 2010-09-10 | Link state delivery method and device of packet transport network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806048A CN101938419A (en) | 2010-09-10 | 2010-09-10 | Link state delivery method and device of packet transport network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101938419A true CN101938419A (en) | 2011-01-05 |
Family
ID=43391561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102806048A Pending CN101938419A (en) | 2010-09-10 | 2010-09-10 | Link state delivery method and device of packet transport network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101938419A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916843A (en) * | 2012-11-19 | 2013-02-06 | 烽火通信科技股份有限公司 | Link protection implementation method for bearing point-to-point private line service by PTN (Packet Transport Network) network |
| CN103580931A (en) * | 2013-11-25 | 2014-02-12 | 烽火通信科技股份有限公司 | Link protection method for PTN (Packet Transport Network) carrying point-to-point private line service |
| CN103929359A (en) * | 2014-03-21 | 2014-07-16 | 烽火通信科技股份有限公司 | System, method and device for achieving link state punch through function based on PTN |
| WO2015139534A1 (en) * | 2014-03-21 | 2015-09-24 | 烽火通信科技股份有限公司 | System, method and apparatus for achieving link-state pass through function based on ptn |
| CN105471598A (en) * | 2014-08-08 | 2016-04-06 | 中兴通讯股份有限公司 | Dynamic allocating method and dynamic allocating system for single boards affiliated to virtual Ethernet ports |
| WO2017054532A1 (en) * | 2015-09-28 | 2017-04-06 | 中兴通讯股份有限公司 | Control message transmitting method and apparatus |
| CN108055145A (en) * | 2017-11-13 | 2018-05-18 | 广州供电局有限公司 | PTN network failover method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905482A (en) * | 2006-08-02 | 2007-01-31 | 华为技术有限公司 | Method and apparatus for communicating network trouble dtecting result |
| CN101321016A (en) * | 2008-07-03 | 2008-12-10 | 中兴通讯股份有限公司 | Method and node equipment for implementing user signal failure remote defect indication |
| CN101729307A (en) * | 2008-10-25 | 2010-06-09 | 华为技术有限公司 | Failure detecting method, communication equipment and network system |
| CN101815006A (en) * | 2010-03-02 | 2010-08-25 | 中兴通讯股份有限公司 | aggregation control method of links passing through provider network and system |
-
2010
- 2010-09-10 CN CN2010102806048A patent/CN101938419A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905482A (en) * | 2006-08-02 | 2007-01-31 | 华为技术有限公司 | Method and apparatus for communicating network trouble dtecting result |
| CN101321016A (en) * | 2008-07-03 | 2008-12-10 | 中兴通讯股份有限公司 | Method and node equipment for implementing user signal failure remote defect indication |
| CN101729307A (en) * | 2008-10-25 | 2010-06-09 | 华为技术有限公司 | Failure detecting method, communication equipment and network system |
| CN101815006A (en) * | 2010-03-02 | 2010-08-25 | 中兴通讯股份有限公司 | aggregation control method of links passing through provider network and system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916843A (en) * | 2012-11-19 | 2013-02-06 | 烽火通信科技股份有限公司 | Link protection implementation method for bearing point-to-point private line service by PTN (Packet Transport Network) network |
| CN102916843B (en) * | 2012-11-19 | 2015-09-30 | 烽火通信科技股份有限公司 | PTN network is utilized to carry the link protection implementation method of point-to-point private line service |
| CN103580931A (en) * | 2013-11-25 | 2014-02-12 | 烽火通信科技股份有限公司 | Link protection method for PTN (Packet Transport Network) carrying point-to-point private line service |
| CN103929359A (en) * | 2014-03-21 | 2014-07-16 | 烽火通信科技股份有限公司 | System, method and device for achieving link state punch through function based on PTN |
| WO2015139534A1 (en) * | 2014-03-21 | 2015-09-24 | 烽火通信科技股份有限公司 | System, method and apparatus for achieving link-state pass through function based on ptn |
| CN103929359B (en) * | 2014-03-21 | 2017-02-08 | 烽火通信科技股份有限公司 | System, method and device for achieving link state punch through function based on PTN |
| CN105471598A (en) * | 2014-08-08 | 2016-04-06 | 中兴通讯股份有限公司 | Dynamic allocating method and dynamic allocating system for single boards affiliated to virtual Ethernet ports |
| WO2017054532A1 (en) * | 2015-09-28 | 2017-04-06 | 中兴通讯股份有限公司 | Control message transmitting method and apparatus |
| CN108055145A (en) * | 2017-11-13 | 2018-05-18 | 广州供电局有限公司 | PTN network failover method and system |
| CN108055145B (en) * | 2017-11-13 | 2021-08-31 | 广东电网有限责任公司广州供电局 | PTN network fault transfer method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101938419A (en) | Link state delivery method and device of packet transport network | |
| US7944815B2 (en) | System and method for network recovery from multiple link failures | |
| CN101719843B (en) | Method of LSP linear protection switching in PTN | |
| CN101483570B (en) | Method, system and device for preventing looped network temporary loop circuit of relaying link | |
| CN101232427A (en) | Ethernet loop protection method and apparatus | |
| CN100586096C (en) | A topology notification method, system and device based on L2VPN | |
| EP2557734B1 (en) | A method and apparatus for providing an uplink over an access ring | |
| CN102035711B (en) | Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring | |
| CN101984591A (en) | Service convergence method and system in transport-multiprotocol label switching network | |
| CN101908983B (en) | Joint detection method and system for Ethernet local segment protection | |
| CN102088387A (en) | Tunnel protection method and device of ring network | |
| CN103916270B (en) | The system for realizing Link State Pass Through function based on PTN, method and device | |
| CN101834759A (en) | Detection method of binding link and distributed equipment | |
| CN102238067B (en) | Switching method and device on Rapid Ring Protection Protocol (RRPP) ring | |
| JP5113124B2 (en) | Fault monitoring system in packet network | |
| CN101931569A (en) | Link fault detection method for Ethernet Ring | |
| CN103220201B (en) | A kind of method and device of detection and protection of ring network faults | |
| CN105264836B (en) | A kind of multiple-domain network guard method, system and node | |
| CN106850256B (en) | A kind of Packet Transport Network guard method, network element device | |
| JP2011223172A (en) | Ring-type network system, communication apparatus and failure detection method | |
| CN102571460A (en) | Single-fiber failure switching method and device | |
| CN104184639B (en) | A kind of processing method and equipment of ERPS loops multipoint fault | |
| CN103780444A (en) | Loop automatic detection device and method in EoC network | |
| CN103888280A (en) | Cross-domain path state negotiation method and node device | |
| CN101986620A (en) | Rapid switching method, device and system of source-routed ring protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110105 |