CN102130790B - A kind of Ethernet tunnel failure detection method and system - Google Patents
A kind of Ethernet tunnel failure detection method and system Download PDFInfo
- Publication number
- CN102130790B CN102130790B CN201010000923.9A CN201010000923A CN102130790B CN 102130790 B CN102130790 B CN 102130790B CN 201010000923 A CN201010000923 A CN 201010000923A CN 102130790 B CN102130790 B CN 102130790B
- Authority
- CN
- China
- Prior art keywords
- section
- vlan
- mep
- ccm
- port
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000012797 qualification Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 102100036962 5'-3' exoribonuclease 1 Human genes 0.000 description 7
- 101100275159 Arabidopsis thaliana COBL7 gene Proteins 0.000 description 7
- 101100440481 Arabidopsis thaliana COBL8 gene Proteins 0.000 description 7
- 101100180341 Arabidopsis thaliana IWS1 gene Proteins 0.000 description 7
- 101000804879 Homo sapiens 5'-3' exoribonuclease 1 Proteins 0.000 description 7
- 101000632314 Homo sapiens Septin-6 Proteins 0.000 description 7
- 101000632054 Homo sapiens Septin-8 Proteins 0.000 description 7
- 101150005224 SBH1 gene Proteins 0.000 description 7
- 101100420761 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SBH2 gene Proteins 0.000 description 7
- 101100256357 Schizosaccharomyces pombe (strain 972 / ATCC 24843) seb1 gene Proteins 0.000 description 7
- 102100027982 Septin-6 Human genes 0.000 description 7
- 101100059544 Arabidopsis thaliana CDC5 gene Proteins 0.000 description 6
- 101100244969 Arabidopsis thaliana PRL1 gene Proteins 0.000 description 6
- 102100039558 Galectin-3 Human genes 0.000 description 6
- 101100454448 Homo sapiens LGALS3 gene Proteins 0.000 description 6
- 101150115300 MAC1 gene Proteins 0.000 description 6
- 101150051246 MAC2 gene Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 101001091610 Homo sapiens Krev interaction trapped protein 1 Proteins 0.000 description 4
- 102100035878 Krev interaction trapped protein 1 Human genes 0.000 description 4
- 102100032757 Cysteine-rich protein 2 Human genes 0.000 description 3
- 101000942088 Homo sapiens Cysteine-rich protein 2 Proteins 0.000 description 3
- 101000851593 Homo sapiens Separin Proteins 0.000 description 3
- 101100425560 Rattus norvegicus Tle4 gene Proteins 0.000 description 2
- 101100327317 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CDC1 gene Proteins 0.000 description 2
- 102100035197 Cerebral cavernous malformations 2 protein Human genes 0.000 description 1
- 101000737028 Homo sapiens Cerebral cavernous malformations 2 protein Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of Ethernet tunnel failure detection method, the method comprises: Connectivity Fault Management (CFM) mechanism based on VLAN (VLAN) realizes fault detect.The invention also discloses a kind of Ethernet tunnel failure detection system, this system comprises: fault detection unit, for realizing fault detect based on VLANCFM mechanism.Adopt method and system of the present invention, the error detection run into when realizing fault detect based on the CCM mechanism of traffic engineering example (TESI) in prior art and the overprotection problem brought can be avoided, improve accuracy in detection.
Description
Technical field
The present invention relates to field of data communication, particularly relate to a kind of Ethernet tunnel failure detection method and system.
Background technology
Along with the proposition of the concept of carrier-class Ethernet, in order to make Ethernet reach telecommunications class criteria, to the protection of Ethernet, switching and having higher requirement.At the operator backbone bridging technology (PBB-TE of existing support traffic engineering; ProviderBackboneBridgeTrafficEngineering) in pretection switch; current support be protection to Traffic engineering services example (TESI), i.e. one protecting tunnel end to end.Not only protection switch time is longer for this protection scheme end to end, and the node involved is too many, cannot realize the protection to its intermediate line link and node.Once middle certain link or certain one malfunctions, then must carry out the switching of whole piece TESI, and if by there being many TESI on this faulty link or malfunctioning node, then can cause the switching of many TESI.That is, the object of protection of PBB-TE end-to-end protection is TESI, when detecting that certain work TESI breaks down, then needs, to another protection of the user's message TESI Reseal entering this PBB-TE tunnel, to allow this flow walk to protect PBB-TE tunnel.For Ethernet; link, Node Protection are parts for Ethernet protection; most network failure is all appear on certain link or node; therefore PBB-TE segment protect also becomes more urgent; existing Duo Jia operator proposes the segment protect demand to PBB-TE; namely in one section of active section special configuration protection section in PBB-TE tunnel, this section of active section is protected, active section and protection section composition sectionalised protection group IPG (InfrastructureProtectionGroup).
As shown in Figure 1, an active section and one or some protection sections are had in a protection group.Under normal circumstances, when active section does not detect fault, then all flows being subject to the protection of this PBB-TE segment protect group forward from this active section; But have fault to occur once this section of active section, the end points (SEB, SegmentEdgeBridge) of PBB-TE segment protect group, as shown in SEB1 and SEB2 in Fig. 1.SEB can detect this fault in time; then SEB can trigger and transmit renewal; the outbound port transmitted corresponding for the TESI being subject to this protected field IPG protection is revised as protection section outbound port corresponding on this SEB; thus by flow switch in protection section; achieve the protection to active section; ensure the normal forwarding of network traffics, improve the reliability of network.Here SEB can be key border bridge (BEB, BackboneEdgeBridge) on PBB-TE tunnel, also can be the Back Bone Core Bridges (BCB, BackboneCoreBridge) on PBB-TE tunnel.This technology is set up the project in ieee standard tissue at present, and item number is 802.1Qbf, and is proposed first version D0.0 in November, 2009.
Set forth adopting the connectivity check messages (CCM, ContinuityCheckMessage) of segment protect to realize fault detection mechanism in prior art below.
In the fault detection mechanism of existing PBB-TE segment protect; the failure detection schemes adopted is: between the two-end-point SEB of section, configure a logical client backbone port (CBP; CustomerBackbonePort) port and the TESI for doing CCM detection, as shown in Figure 2.In Fig. 2, two-end-point SEB1 and SEB2 of section can be specially BEB or BCB; Bridge device SIB in the middle of section can be specially BCB; SEB1 has logic CBP port one and SEP1, logic CBP port one is expressed as LogicCBP1 in fig. 2; SEB2 has logic CBP port 2 and SEP2, logic CBP port 2 is expressed as LogicCBP2 in the drawings; The logic CBP comprising LogicCBP1 and LogicCBP2 represents with, the PNP port comprising SEB1 and SEB2 all with
represent.
In Fig. 2, having one section in PBB-TE networking, is all PNP port from port SEP1 to port SEP2, SEP1 and SEP2, is two end points of this section, and the Centronics port of this section is all SIP, is also PNP port.TESI for detecting then is needed on the SEB at two ends, arrange a logic CBP port, thus CBP between two-end-point configures TESI.Wherein, the MAC Address of the logic CBP port of SEB1 is the MAC Address of the logic CBP port of MAC1, SEB2 is MAC2.The intermediate equipment SIB of this section needs for CCM configures the forwarding that TESI carries out CCM: the tlv triple of the ESP1 in SEB2 to SEB1 direction is <MAC1, MAC2, BVID1>; The tlv triple of the ESP2 in SEP1 to SEP2 direction is <MAC2, MAC1, BVID2>.The CCM1 that then SEP2 mails to SEP1 will carry tlv triple <MAC1, MAC2, the path that BVID1> presses ESP1 forwards, the CCM2 that SEP1 mails to SEP2 will carry tlv triple <MAC2, the path that MAC1, BVID2> press ESP2 forwards.By CCM1, CCM2 thus realize to the two-way detection of the fault of this section of link between SEP1 and SEP2, CCM1, CCM2 are for representing the two-way CCM in Fig. 2, and such as direction is CCM1 from left to right, and direction is CCM2 from right to left.Wherein, above ESP refers to Ethernet switched path, and such as ESP1 is one of them Ethernet switched path; First parameter in above tlv triple, such as MAC2 refers to the target MAC (Media Access Control) address of Ethernet switched path; Second parameter in tlv triple, such as MAC1 refers to the MAC Address in the source of Ethernet switched path; The 3rd parameter in tlv triple, such as BVID2 refers to the value of the B-VLAN of Ethernet switched path.
As can be seen from Figure 2, no matter SEB1 or SEB2, if SEB is the BCB equipment in PBB-TE network, then needs on the S-components of BCB, arrange a logic CBP, and this CBP is configured to a UPMEP.And once be placed on by UPMEP on this logic CBP port, then, on its SEB, the part between CBP and PNP is also the detection receiving this TESICCM, and first this TESICCM needs to carry out by transmitting forwarding at SEB.Which adds the probability introducing wrong possibility, cause the protection that there is no need to switch.Such as on SEB, the TESI configuration error of CCM, this did not affect the normal forwarding of flow at all originally, but can not receive CCM due to opposite end SEB, therefore result in the switching of protection group, and this was considered to unnecessary.And this mistake, be also because the reason of this mechanism is artificially introduced.
Below the title related in prior art is described as follows:
Active section refers to that section of the flow process when this section does not detect that fault occurs, as shown in Figure 3.
When protection section refers to protection handover trigger, that section of bearer traffic, as shown in Figure 3.
Section refers to LAN between a series of PNP port and PNP port and bridge composition, as shown in Figure 3.
SEB is two end points for terminate section, and SEB can be the BEB equipment in PBB-TE network, also can be BCB equipment, as shown in Figure 3.Bridge device in the middle of section is SIB.
SEP refers to the PNP on that SEB of terminate section, and SIP refers to the PNP in the centre position of the section of being positioned at.As shown in Figure 3.
In Fig. 3,
represent SEP port,
represent SIP port, SEP and SIP is PNP port;
represent active section;
represent protection section;
represent bridge;
represent TESI; The two-end-point SEB of section can be specially BEB or BCB; Bridge device SIB in the middle of section can be specially BCB.
In addition, existing fault detection mechanism and TESI fault detect end to end very similar, a kind of detection of data forwarding paths can be thought.That is: if the forward-path of TESICCM breaks down, the forwarding-table item configuration error etc. of such as certain intermediate equipment, then also think link failure.This testing result is obviously error detection, be not protection group link failure truly, but forward-path is wrong caused, and switching if perform protection according to this error detection, is obviously not too rational.Visible, how to avoid the error detection run into when realizing fault detect based on TESICCM mechanism to be problem in the urgent need to address, but there is not effective solution for this problem at present.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of Ethernet tunnel failure detection method and system, and the error detection run into when prior art can be avoided to realize fault detect based on TESICCM mechanism, improves accuracy in detection.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of Ethernet tunnel failure detection method, the method comprises:
Associating territory (MA) is safeguarded to each section of association one;
Connectivity Fault Management (CFM) mechanism based on VLAN (VLAN) realizes fault detect.
Wherein, the method also comprises: the MA associated by each section is the MA realized based on described VLANCFM mechanism; MA associated by each section identifies qualification based on VLAN ID (VID).
Wherein, the method also comprises: VLAN is the VLAN between the two-end-point of the section of being configured in, and all carrier network port (PNP) ports belonging to described section are all added in described VLAN.
Wherein, the method also comprises: for the MA associated by each section that configures, by other MEP transmission connectivity check messages (CCM) respectively to opposite end of each maintenance associating end points (MEP) on current MA; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding.
Wherein, when sending CCM, the method also comprises: the MEP sending CCM is configured to DOWNMEP, on the SEP end points of the described MEP section of being configured in;
Described transmission CCM comprises further: on current MA, and directly by the MEP of described transmission CCM, other MEP to opposite end send CCM.
Wherein, the method also comprises: configure the MA based on VLAN, and described configuration specifically comprises: between the both sides SEB of section, will belong to the PNP port arrangement of described section in same VLAN; Described section comprises described active section and described protection section.
A kind of Ethernet tunnel failure detection system, this system comprises: fault detection unit, for associating a MA to each section; Fault detect is realized based on VLANCFM mechanism.
Wherein, described fault detection unit, is further used for for each MA associated by each section that configures, by other MEP transmission CCM of each MEP on current MA respectively to opposite end; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding.
Wherein, described fault detection unit, is further used for the MEP sending CCM to be configured to DOWNMEP, and on the SEP port of the section of being configured in; On current MA, directly by the MEP of described transmission CCM, other MEP to opposite end send CCM.
Wherein, described fault detection unit, is further used for except the VLANID difference except adopting, respectively based on the MA of identical principle configuration based on VLAN on described active section with described protection section; Wherein,
The described MA configured based on VLAN based on identical principle specifically comprises: between the both sides SEB of section, will belong to the PNP port arrangement of described section in same VLAN; Described section comprises described active section and described protection section.
The present invention is to an each section of association MA; Fault detect is realized based on VLAN Connectivity Fault Management (CFM) mechanism.
Adopt the present invention; fault detect is realized based on VLANCFM mechanism; the error detection run into when realizing fault detect based on the CCM mechanism of TESI in prior art and the overprotection problem brought can be avoided; improve accuracy in detection; also providing foundation accurately for the follow-up protection based on detecting switches, also improving accuracy and the switching efficiency of protection switching accordingly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing PBB-TE segment protect;
Fig. 2 is the existing fault detection mechanism schematic diagram of PBB-TE section;
Fig. 3 is the schematic diagram of existing PBB-TE active section, concept such as protection section, SEB, SIB etc.;
Fig. 4 is the schematic diagram of example 1 of the present invention;
Fig. 5 is the schematic diagram of example 2 of the present invention.
Embodiment
Basic thought of the present invention is: realize fault detect based on VLANCFM mechanism.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme.
A kind of Ethernet tunnel failure detection method, the method comprises: to an each section of association MA; Fault detect is realized based on VLANCFM mechanism.Wherein, the MA associated by each section is used for the fault condition detection of each section.
Here, the method also comprises: the MA associated by each section is the MA realized based on VLANCFM mechanism; MA associated by each section identifies qualification based on VID.Wherein, VID refers to VLAN ID.
It is to be noted: CFM is a kind of technology of fault management, and CFM technology includes various implementation method, wherein a kind of for needing foundation transmission CCM to realize in the implementation method of detection of connectivity.CCM is a kind of for detecting connective message, represents with ConnectivityCheckMessage.In CFM technology, when adopting transmission CCM to realize detection of connectivity, VLANCFM mechanism is specially VLANCCM mechanism, specifically sets forth below.
Here, the method also comprises: VLAN is the VLAN between the two-end-point of the section of being configured in, and a series of PNP ports belonging to this section are all added in this VLAN, and other and this section irrelevant PNP port is without the need to joining in this VLAN.Here it is to be noted: VLAN is a kind of VLAN of point-to-point.
The method also comprises following content:
One. on the active section and protection section of sectionalised protection group, configure the MA based on VLAN respectively.
Here; when described active section and described protection section configure MA based on VLAN respectively; realize fault detect also to comprise: except VLAN ID (VLANID) difference adopted, respectively based on the MA of identical principle configuration based on VLAN on described active section with described protection section.
Wherein, describedly specifically to comprise based on the MA of VLAN based on the configuration of identical principle: between the both sides SEB of section, by along protected Ethernet path the PNP port arrangement of process in same VLAN; Described section comprises described active section and described protection section.
Two, for each MA of configuration, by other MEP transmission CCM of each MEP on current MA respectively to opposite end; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding.
Here it is to be noted: owing to being all configured with the MA based on VLAN on active section and protection section respectively, therefore, section link here comprises active section link and protection section link.
Here, when sending CCM, the method also comprises: the MEP sending CCM is configured to DOWNMEP, and is configured on the PNP port of end points (SEB) of sectionalised protection group.
Correspondingly, described transmission CCM comprises further: on current MA, and directly by the outbound port of the MEP of described transmission CCM, other MEP to opposite end send CCM.
In sum, when realizing fault detect for prior art based on TESICCM mechanism, the error detection for link failure that forward-path mistake causes, the scheme realizing fault detect based on VLANCFM mechanism provided by the invention, the impact of the forward-path of SEB equipment on the TESI detected can be got rid of, and the impact of forward-path on link failure error detection can be reduced to minimum as far as possible.
And the present invention compared with prior art, without the need to as prior art, SEB must introduce a logic CBP port, logic CBP port configures UPMEP.Owing to SEB in prior art must introduce a logic CBP port; logic CBP port configures UPMEP; and also there is SEP port in SEB; therefore; also need to forward TESICCM between the logic CBP port and SEP port of SEB, same, if the forward-path between logic CBP port and SEP port goes wrong; also can error detection be that link failure causes protection to switch, be obviously also irrational.SEB of the present invention, without the need to introducing logic CBP port, directly utilizes SEP port, and SEP port configures DOWNMEP; And be different from prior art transmission TESICCM for fault detect; but send VLANCCM for fault detect; thus the forward-path that efficiently avoid in prior art between logic CBP port and SEP port goes wrong, also can the irrational protection that causes for link failure of error detection switch.
In a word, the present invention, when fault detect, avoids unnecessary factor to the adverse effect detecting link failure and produce, and such as avoids the impact that mistake that the error detections such as TESI forward-path fault for detecting or configuration error cause switches; Without the need to a logic CBP port must be introduced on SEB, the detection scheme in Ethernet path on existing PBB-TE sectionalised protection is simplified, and reduces the complexity of system, eliminate the impact of SEB in link detecting.
The present invention mainly comprises following content:
The active section and protection section of PBB-TE sectionalised protection group configure MA based on VLAN respectively.
Active section configures VLANMA to refer to: on SEP, SIP port belonging to this section, configure a certain VLAN respectively according to protected Ethernet path between the port SEP of the correspondence on the two-end-point SEB of active section; here VLAN only has a port members SEP on SEB, and SIB then only has two port members SIPs.Similarly, protection section also does similar configuration, but the VLANID on VLANID and active section is different.That is, active section is the same principle with the MA configured based on VLAN in protection section, and only the two VLANID adopted is different.SIPs refers to multiple SIP port.
Here, the SEP of SEB can be configured to DOWNMEP, respectively directly by the opposite end MEP transmission CCM of MEP outbound port to this MA.
When the MEP in MA within a certain period of time, such as 3.5t time content does not receive the CCM that opposite end MEP sends, then judge that this MA detects fault, the section link failure that namely this MA is corresponding.
Carry out citing to the present invention below to set forth.
Example 1:
Be illustrated in figure 4 the schematic diagram of fault detection mechanism scheme of the present invention, the active section and protection section of PBB-TE sectionalised protection group configure MA based on VLAN respectively.
In Fig. 4,
represent SEP port,
represent SIP port, SEP and SIP is PNP port;
represent active section;
represent protection section;
represent bridge; The two-end-point SEB of section can be specially BEB or BCB; Bridge device SIB in the middle of section can be specially BCB;
represent the fringe node MEP of MA1;
represent the fringe node MEP of MA2;
represent the intermediate node MIP of MA1 or MA2;
represent MA1;
represent MA2.
Example 2:
As shown in Figure 5, in PBB-TE network, form an IPG by these bridge devices of A, B, C, D, E and the link between them.In IPG, suppose that active section is A-B-C-D, protection section is A-E-D.Under normal circumstances, the flow entering protection group IPG is walked on active section A-B-C-D, if active section breaks down or manual command switches, then flow will be switched on protection section A-E-D.Therefore the detection of Link State must be carried out to active section part and protection section part.When detecting that active section Link State breaks down, and when protection section Link State is normal, then by flow switch in protection section.Afterwards, in reversing mode, if detect that again active section Link State recovers normal, then flow is switched back in active section; Or in non-inverted pattern, if detect that protection section Link State breaks down, and active section Link State is normal, then switched back in active section by flow.
In Fig. 5,
represent SEP port,
represent SIP port, SEP and SIP is PNP port;
represent bridge; The two-end-point SEB of section can be specially BEB or BCB; Bridge device SIB in the middle of section can be specially BCB;
represent the fringe node MEP of MA1;
represent the fringe node MEP of MA2;
represent MA1, also can be called VLAN1;
represent MA2, also can be called VLAN2.
The concrete scheme detected comprises following content:
1, all joined in VLAN1 by the port PNP belonging to active section in protection group, the port members in VLAN1 has: A1, B1, B2, C2, C1, D1, as shown in Figure 5; All joined in VLAN2 by the port PNP belonging to protection section in protection group, the port members in VLAN2 has: A2, F1, F2, D2, as shown in Figure 5.
2, configuration belongs to the MA1 of VLAN1, and configuration belongs to the MA2 of VLAN2.Two MEP of MA1 are the D1 on A1 and the D equipment on A equipment respectively; Two MEP of MA2 are the D2 on A2 and the D equipment on A equipment respectively.
3, MEP is here DOWNMEP, that is: the CCM sent from MEP directly sends from MEP port, and without the bridge relaying of this MEP port place equipment.Thus decrease the impact that SEB equipment detects the Link State of section.
4, for MA1; MA1 only has two MEP; each MEP sends CCM respectively on the MEP of opposite end; here; the target MAC (Media Access Control) address of CCM is multicast address, and its reason is, the CCM message transmission based on VLAN is not the mode by forward-path; but adopt the mode of multicast, therefore avoid irrational protection switching that forward-path mistake error detection causes.After the CCM sent as A1 enters from B1 port and arrives B, because B equipment only has B1 and B2 at the port of VLAN1, therefore this CCM can send from B2 port, thus arrives C equipment.As a same reason, CCM enters from C2, sends from C1, thus the D1 port of the equipment of arrival D.The CCM that D1 port sends also arrives the A1 port of device A with same forwarding mechanism.Thus demonstrate the availability of MA1, namely the active section of this protection group IPG is available.Working mechanism and the MA1 of MA2 are the same, and the protection section that also can be detected IPG by MA2 is available.
5, when the MEP (A1 or D1) of MA1 waits for that 3.5 CCM time cycles still do not receive the CCM of MA1; then think that this MA1 there occurs fault; then can notify that two end points of protection group carry out flow switch in protection section, thus realize the protection of PBB-TE section.
A kind of Ethernet tunnel failure detection system, this system comprises: fault detection unit, for associating a MA to each section; Fault detect is realized based on VLANCFM mechanism.
Here, fault detection unit is further used for configuring MA based on VLAN respectively on the active section and protection section of sectionalised protection group; For each MA associated by each section that configures, by other MEP transmission CCM of each MEP on current MA respectively to opposite end; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding.
Here, fault detection unit is further used for the MEP sending CCM to be configured to DOWNMEP, and is configured on the PNP port of SEB; On current MA, directly by the outbound port of the MEP of described transmission CCM, other MEP to opposite end send CCM.
Here, fault detection unit is further used for except the VLANID difference except adopting, respectively based on the MA of identical principle configuration based on VLAN on described active section with described protection section.
Wherein, describedly specifically to comprise based on the MA of VLAN based on the configuration of identical principle: between the both sides SEB of section, by along protected Ethernet path the PNP port arrangement of process in same VLAN; Described section comprises described active section and described protection section.
The Chinese and English explanatory notes related in above word and Ge Tu is as follows:
VLAN refers to VLAN;
SEP segment end point ports, represents with SegmentEndpointPort;
PNP refers to carrier network port, represents with ProviderNetworkPort;
SIP segment Centronics port, represents with SegmentIntermediatePort;
S-components is S-VLANcomponent, is the parts that can identify in the bridge of VLAN, and its each port identifies, inserts and deletes service vlan tag;
MEP refers to safeguard associating end points, represents with MaintenanceAssociationEndPoint;
UPMEP is a MEP being positioned at bridge, can send CFMPDUs to bridge relay entity, also can receive CFMPDUs from bridge relay entity;
DOWNMEP is a MEP being positioned at bridge, and it can send CFMPDUs to connected LAN, also can accept the CFMPDUs sent from LAN;
MA refers to safeguard associating territory, represents with MaintenanceAssociation.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (5)
1. an Ethernet tunnel failure detection method, is characterized in that, the method comprises:
Associating territory (MA) is safeguarded to each section of association one;
Connectivity Fault Management (CFM) mechanism based on VLAN (VLAN) realizes fault detect;
Wherein, VLAN is the VLAN between the two-end-point of the section of being configured in, and all carrier network port (PNP) ports belonging to described section are all added in described VLAN;
The method also comprises: for the MA associated by each section that configures, by other MEP transmission connectivity check messages (CCM) respectively to opposite end of each maintenance associating end points (MEP) on current MA; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding;
When sending CCM, the method also comprises: the MEP sending CCM is configured to DOWNMEP, on the SEP end points of the described MEP section of being configured in;
Described transmission CCM comprises further: on current MA, and directly by the MEP of described transmission CCM, other MEP to opposite end send CCM.
2. method according to claim 1, is characterized in that, the method also comprises: the MA associated by each section is the MA realized based on described VLANCFM mechanism; MA associated by each section identifies qualification based on VLAN ID (VID).
3. method according to claim 1, is characterized in that, the method also comprises: configure the MA based on VLAN, and described configuration specifically comprises: between the both sides SEB of section, will belong to the PNP port arrangement of described section in same VLAN; Described section comprises active section and protection section.
4. an Ethernet tunnel failure detection system, is characterized in that, this system comprises: fault detection unit, for associating a MA to each section; Fault detect is realized based on VLANCFM mechanism;
Wherein, VLAN is the VLAN between the two-end-point of the section of being configured in, and all carrier network port (PNP) ports belonging to described section are all added in described VLAN;
Described fault detection unit, is further used for for each MA associated by each section that configures, by other MEP transmission CCM of each MEP on current MA respectively to opposite end; If other MEP of described opposite end do not receive described CCM within the time period arranged, then detect the section link failure that described current MA is corresponding;
Described fault detection unit, is further used for the MEP sending CCM to be configured to DOWNMEP, and on the SEP port of the section of being configured in; On current MA, directly by the MEP of described transmission CCM, other MEP to opposite end send CCM.
5. system according to claim 4, is characterized in that, described fault detection unit, is further used for except the VLANID difference except adopting, respectively based on the MA of identical principle configuration based on VLAN on active section with protection section; Wherein,
The described MA configured based on VLAN based on identical principle specifically comprises: between the both sides SEB of section, will belong to the PNP port arrangement of described section in same VLAN; Described section comprises described active section and described protection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000923.9A CN102130790B (en) | 2010-01-20 | 2010-01-20 | A kind of Ethernet tunnel failure detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000923.9A CN102130790B (en) | 2010-01-20 | 2010-01-20 | A kind of Ethernet tunnel failure detection method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102130790A CN102130790A (en) | 2011-07-20 |
| CN102130790B true CN102130790B (en) | 2016-03-30 |
Family
ID=44268688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010000923.9A Expired - Fee Related CN102130790B (en) | 2010-01-20 | 2010-01-20 | A kind of Ethernet tunnel failure detection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102130790B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200042B (en) * | 2013-03-12 | 2017-02-08 | 杭州华三通信技术有限公司 | Method and device for chain detection in TRILL network |
| CN103354549B (en) * | 2013-07-01 | 2016-05-04 | 杭州华三通信技术有限公司 | A kind of CFD implementation method and equipment based on dynamic vlan log-in protocol |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009056972A1 (en) * | 2007-11-02 | 2009-05-07 | Telefonaktiebolaget L M Ericsson (Publ) | A system and method for ethernet protection switching in a provider backbone bridging traffic engineering domain |
| WO2009056937A3 (en) * | 2007-11-01 | 2009-07-02 | Ericsson Telefon Ab L M | Connectivity fault management in a provider backbone bridge traffic engineering (pbb-te) domain |
| CN101505246A (en) * | 2009-03-02 | 2009-08-12 | 中兴通讯股份有限公司 | Fault detection and recovery method for network tunnel sectional protection mode |
-
2010
- 2010-01-20 CN CN201010000923.9A patent/CN102130790B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009056937A3 (en) * | 2007-11-01 | 2009-07-02 | Ericsson Telefon Ab L M | Connectivity fault management in a provider backbone bridge traffic engineering (pbb-te) domain |
| WO2009056972A1 (en) * | 2007-11-02 | 2009-05-07 | Telefonaktiebolaget L M Ericsson (Publ) | A system and method for ethernet protection switching in a provider backbone bridging traffic engineering domain |
| CN101505246A (en) * | 2009-03-02 | 2009-08-12 | 中兴通讯股份有限公司 | Fault detection and recovery method for network tunnel sectional protection mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102130790A (en) | 2011-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8018841B2 (en) | Interworking an ethernet ring network and an ethernet network with traffic engineered trunks | |
| CN101364926B (en) | Method and apparatus for network protection | |
| CN101051995B (en) | Protection switching method based on no connection network | |
| CN102007729B (en) | Connectivity fault management traffic indication extension | |
| CN101924654B (en) | Point-to-multipoint service-based path switching method and system | |
| CN103178971A (en) | Passive optical network (PON) protecting method and device | |
| CN101815006B (en) | aggregation control method of links passing through provider network and system | |
| EP1958364B1 (en) | Vpls remote failure indication | |
| EP2521275B1 (en) | Method and device for tunnel protection | |
| CN103051536A (en) | Quick multicast switching method of two-layer redundant link | |
| CN101908983B (en) | Joint detection method and system for Ethernet local segment protection | |
| CN104506546A (en) | Bidirectional forwarding detection method and device of aggregation link | |
| US8400910B1 (en) | Associated tunnels terminating on different packet switches and relaying packets via different tunnel combinations | |
| CN101989944B (en) | Method for local protection of Ethernet tunnel and shared node of protection domain working segment | |
| CN102546265B (en) | Fault processing method, device and system for virtual private local area network | |
| CN102130790B (en) | A kind of Ethernet tunnel failure detection method and system | |
| JP5929720B2 (en) | Communication system and network relay device | |
| CN101989917A (en) | Ethernet tunnel subsection protection method and device | |
| EP2528263B1 (en) | Method for implementing protection group overlay, and method and system for ethernet protection switching | |
| CN102291245A (en) | Method for detecting mismatch fault and maintenance terminal point | |
| CN101997728B (en) | A kind of checkout gear of Ethernet localised protection and method | |
| CN102195794B (en) | A kind of fast switch over method of Ethernet trail protection and device | |
| JP2011004048A (en) | L2 redundancy communication device | |
| JP2012502583A (en) | Protection method in bridge backbone network of provider and apparatus for communication between end points | |
| CN102064998B (en) | Ethernet path protection switching method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 |