CN103684887B

CN103684887B - A kind of method and apparatus connecting the generation of error detection group network system hardware table item

Info

Publication number: CN103684887B
Application number: CN201310755355.7A
Authority: CN
Inventors: 李磊方
Original assignee: Hangzhou H3C Technologies Co Ltd
Current assignee: New H3C Technologies Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2017-01-04
Anticipated expiration: 2033-12-31
Also published as: CN103684887A

Abstract

The invention discloses a kind of method connecting the generation of error detection group network system hardware table item, the method is applied to first equipment to be added in described connection error detection CFD networking with hardware detection ability, the method includes: described first equipment sends link trace LTM multicast address message to the member device in described CFD networking, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, purpose MAC in PDU field is multicast MAC, and the source MAC in PDU field is the bridge MAC of described first equipment；Described first equipment receives the LTM unicast address message or link trace response LTR message that in described CFD networking, member device sends, setting up the hardware table item of each member device MEP ID in corresponding described CFD networking respectively, arranging with the neighborhood of corresponding member device is normal.

Description

A kind of method and apparatus connecting the generation of error detection group network system hardware table item

Technical field

The present invention relates to network communication and transmission technology, particularly a kind of connection error detection group network system hardware table item generates Method and apparatus.

Background technology

CFD(Connectivity Fault Detection, connects error detection) be in a kind of double layer network based on End-to-end OAM(Operations, the Administration and Maintenance of VLAN, Operations, Administration and Maintenance) machine System, is mainly used in double layer network detecting connectivity of link, and confirms fault when fault occurs and position.

MD(Maintenance Domain, safeguards territory) refer to a network or a part for network that CFD covered.For It is accurately positioned trouble point, MD introduces the concept of rank (level).MD is divided into eight grades, represents with integer 0～7, The biggest rank of numeral is the highest, and the scope of MD is the biggest.Can be adjacent or nested between different MD, but can not intersect, and nested Time can only be nested to low level MD by high-level MD

Fig. 1 is a typical CFD networking schematic diagram, safeguards that territory MD_B is in solid box in safeguarding territory MD_A and dotted line frame Nested, safeguard territory MD_A be superior to safeguard territory MD_B.If finding that on border, MD_A territory link is obstructed, then show Equipment within MD_A territory occurs in that fault, and fault likely occurs on these five equipment of Device A～Device E.This Time, if it has also been found that link is obstructed on border, MD_B territory, then the scope that trouble point is possible just narrow down to Device B～ On these three equipment of Device D, and if equipment in MD_B territory is working properly, the most at least may determine that Device C is not Out of order.

Device A～Device E is 5 equipment in this CFD networking, and the white box on equipment is MEP (Maintenance Association End Point, safeguard end points), CCM(Continuity Check Message connects Detection messages) periodically sent by MEP, it is used for obtaining far-end MEP information, its transmission cycle has 7 ranks, such as table 1 Shown in.

Table 1

The value in time interval territory in CCM message	The transmission interval of CCM message	The time-out time of far-end MEP
			1	10/3 millisecond	35/3 millisecond
2	10 milliseconds	35 milliseconds
			3	100 milliseconds	350 milliseconds
4	1 second	3.5 the second
			5	10 seconds	35 seconds
6	60 seconds	210 seconds
			7	600 seconds	2100 seconds

In high reliability network environment, realize the CCM that agreement specifies send the cycle (CCM message sends when being 10/3 millisecond The rank in cycle is 1), 300 CCM messages of transmission the most per second need the support of hardware chip, therefore send CCM report according to equipment Equipment can be divided into two types by the ability of literary composition: (equipment can send the CCM of 1 rank the equipment of hardware detection ability Message), without hardware detection ability equipment (equipment can not send the CCM message of 1 rank, can only send 2 ranks or 2 ranks with Under CCM message).

The equipment having hardware detection ability is needed to be previously set the information of far-end neighbor owing to limiting by chip；I.e. specify Far-end MEP list is issued to hardware, then provides corresponding hardware resource.The mode of being typically implemented has two kinds:

1, all MEP lists that Service Instance can comprise all are issued to hardware.

2, select part MEP in a Service Instance, then issued by hand by user.

The shortcoming of implementation 1 is indiscriminate, does not accounts for actually used quantity, and acquiescence issues numerous hardware table item, Take hardware resource in a large number, not only cause the waste of hardware resource, the Service Instance quantity that the equipment of also limit can be supported.

Manual appointment is needed again to detect list when implementation 2 underaction, the network capacity extension；It addition, the list specified Unalterable can not be consistent with actually used MEP quantity, therefore there is also certain hardware resource waste.

Summary of the invention

In view of this, the present invention proposes a kind of method connecting the generation of error detection group network system hardware table item and sets Standby, there is the link trace clean culture ground that the equipment to be added of hardware detection ability comes by receiving CFD networking member device to send Location message (LTM, Link Trace Message) or link trace response message (LTR, Link Trace Reply), extract institute State LTM unicast address message or the MEP(Maintenance Association of CFD networking member device that LTR message carries End Point, safeguards end end points) information, create the hardware table item of corresponding described CFD networking member device MEP, thus avoid down Send out the useless MEP that all MEP lists that Service Instance can comprise cause and take resources phenomena.The technology that the present invention proposes Scheme is:

A kind of method connecting the generation of error detection group network system hardware table item, is applied to described connection error detection CFD Having first equipment to be added of hardware detection ability in networking, the method includes:

Described first equipment transmission link trace LTM multicast address message is to the member device in described CFD networking, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast ground Purpose MAC in the message protocol data cell PDU field of location is multicast MAC, and the source MAC in PDU field is described first equipment Bridge MAC；

Described first equipment receives the LTM unicast address message or link trace that in described CFD networking, member device sends Response LTR message, sets up the hardware table item of each member device MEP ID in corresponding described CFD networking respectively, arranges with corresponding The neighborhood of member device is normal；Wherein,

Described LTM unicast address message is to have the member device of hardware detection ability in described CFD networking according to described The LTM multicast address message that first equipment sends sets up the corresponding hardware table item of MEP ID of described first equipment, setting and institute The neighborhood stating the first equipment is transmission after normal, and purpose MAC in described LTM unicast address message PDU field is The bridge MAC of described first equipment, described LTM unicast address message carries in the CFD networking sending described LTM unicast address message There is the MEP ID of the member device of hardware detection ability；

Described LTR message is that the member device in described CFD networking without hardware detection ability sets according to described first The LTM multicast address message that preparation is sent sends, and described LTR message carries in the CFD networking sending described LTR message not to be had The MEP ID of the member device of hardware detection ability.

In such scheme, the method farther includes:

Described first equipment receives the LTM unicast address message or LTR message that in described CFD networking, member device sends After, it may be judged whether create the hardware table item of each member device MEP ID in corresponding described CFD networking, if it is, return Multiple LTR message gives the member device sending LTM unicast address message in described CFD networking, if it is not, then set up corresponding described The hardware table item of member device MEP ID in CFD networking, and reply LTR message to described CFD networking sends LTM unicast address The member device of message, described LTR message does not carry the MEP ID of described first equipment.

A kind of method connecting the generation of error detection group network system hardware table item, is applied to described connection error detection CFD Not having first equipment to be added of hardware detection ability in networking, the method includes:

Described first equipment receives the LTM unicast address message or link trace that in described CFD networking, member device sends Response LTR message；Wherein,

In such scheme, the method farther includes:

After described first equipment receives the LTM unicast address message that in described CFD networking, member device sends, described first Device replied LTR message gives the member device sending LTM unicast address message in described CFD networking, and described LTR message does not carries The MEP ID of described first equipment.

A kind of method connecting the generation of error detection group network system hardware table item, is applied to described connection error detection CFD Having the member device of hardware detection ability in networking, the first equipment is the equipment to be added of described CFD networking, the method bag Include:

Described member device receives the link trace LTM multicast address message that described first equipment sends, described LTM multicast Address message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast address message Purpose MAC in protocol Data Unit PDU field is multicast MAC, and the source MAC in PDU field is the bridge of described first equipment MAC；

Described member device sets up the hardware table item of the MEP ID of corresponding described first equipment, arranges and described first equipment Neighborhood be normal；

Described member device transmission LTM unicast address message, to described first equipment, has for described first equipment The hardware table item of corresponding described member device MEP ID, described LTM unicast address message PDU field is set up during hardware detection ability In the bridge MAC that purpose MAC is described first equipment, described LTM unicast address message carries the MEP ID of described member device.

In such scheme, the method farther includes:

After described member device receives the LTM multicast address message that described first equipment sends, it may be judged whether created The hardware table item of corresponding described first equipment MEP ID, if it is, transmission LTM unicast address message is to described first equipment, If it is not, then set up the hardware table item of corresponding described first equipment MEP ID, and send LTM unicast address message to described first Equipment.

A kind of method connecting the generation of error detection group network system hardware table item, is applied to described connection error detection CFD Not having the member device of hardware detection ability in networking, the first equipment is the equipment to be added of described CFD networking, the method bag Include:

Described member device reply LTR message gives described first equipment, has hardware detection for described first equipment Setting up the hardware table item of corresponding described member device MEP ID during ability, wherein said LTR message carries described member device MEP ID。

A kind of equipment, described equipment be connection error detection CFD networking has hardware detection ability to be added set Standby, this equipment includes:

Message sending module, sets to the member in described CFD networking for sending link trace LTM multicast address message Standby, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of this equipment, described LTM multicast ground Purpose MAC in the message protocol data cell PDU field of location is multicast MAC, the bridge that source MAC is this equipment in PDU field MAC；

Message receiver module, for receiving the LTM unicast address message or link that in described CFD networking, member device sends Tracking response LTR message, wherein,

Described LTM unicast address message is to have the member device of hardware detection ability in described CFD networking according to originally setting The LTM multicast address message that preparation is sent is set up the hardware table item of the MEP ID of this equipment corresponding, is arranged the neighbours pass with this equipment System is transmission after normal, and the bridge MAC that purpose MAC is this equipment in described LTM unicast address message PDU field is described LTM unicast address message carries to be had the member of hardware detection ability and sets in the CFD networking sending described LTM unicast address message Standby MEP ID；

Described LTR message is that the member device in described CFD networking without hardware detection ability sends according to this equipment LTM multicast address message send, described LTR message carry the CFD networking sending described LTR message does not have hardware examine The MEP ID of the member device of survey ability；

List item creation module, for setting up the hardware list of each member device MEP ID in corresponding described CFD networking respectively , arranging with the neighborhood of corresponding member device is normal.

In such scheme, this equipment farther includes:

Judge module, receives, for described first equipment, the LTM unicast address report that in described CFD networking, member device sends After literary composition or LTR message, it may be judged whether created the hardware table item of each member device MEP ID in corresponding described CFD networking, If NO, instruction list item creation module creates corresponding hardware table item, and setting with the neighborhood of corresponding member device is normal；

Described message sending module is further used for, if described message receiver module receives member in described CFD networking The LTM unicast address message that equipment sends, sends LTR message to the member sending LTM unicast address message in described CFD networking Equipment, described LTR message does not carry the MEP ID of described first equipment.

A kind of equipment, described equipment is not have the to be added of hardware detection ability in connection error detection CFD networking to set Standby, this equipment includes:

Message receiver module, for receiving the LTM unicast address message or link that in described CFD networking, member device sends Follow the tracks of response LTR message；Wherein,

Described LTM unicast address message is to have the member device of hardware detection ability in described CFD networking according to described The LTM multicast address message that message sending module sends is set up the hardware table item of the MEP ID of this equipment corresponding, is arranged and originally set Standby neighborhood is transmission after normal, and purpose MAC in described LTM unicast address message PDU field is this equipment Bridge MAC, described LTM unicast address message carries in the CFD networking sending described LTM unicast address message has hardware detection energy The MEP ID of the member device of power；

Described LTR message is that the member device in described CFD networking without hardware detection ability is sent out according to described message Sending the LTM multicast address message that module sends to send, described LTR message carries in the CFD networking sending described LTR message not There is the MEP ID of the member device of hardware detection ability.

In such scheme, if described message receiver module receives the LTM clean culture that in described CFD networking, member device sends Address message,

Described message sending module is further used for, and sends LTR message to sending LTM unicast address in described CFD networking The member device of message, described LTR message does not carry the MEP ID of described first equipment.

A kind of equipment, described equipment is the member device that connection error detection CFD networking has hardware detection ability, first Equipment is the equipment to be added of described CFD networking, and this equipment includes:

Message receiver module, for receiving the link trace LTM multicast address message that described first equipment sends, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast ground Purpose MAC in the protocol Data Unit PDU field of location message is multicast MAC, and the source MAC in PDU field is described first to set Standby bridge MAC；

List item creation module, for setting up the hardware table item of the MEP ID of corresponding described first equipment, is arranged and described the The neighborhood of one equipment is normal；

Message sending module, is used for sending LTM unicast address message to described first equipment, for described first equipment The hardware table item of corresponding this equipment MEP ID is set up, in described LTM unicast address message PDU field when there is hardware detection ability The bridge MAC that purpose MAC is described first equipment, described LTM unicast address message carries the MEP ID of this equipment.

In such scheme, this equipment farther includes:

Judge module, after described member device receives the LTM multicast address message that described first equipment sends, it is judged that Having created the hardware table item of corresponding described first equipment MEP ID, if NO, it is right that instruction list item creation module is set up Answering the hardware table item of the MEP ID of described first equipment, arranging the neighborhood with described first equipment is normal.

A kind of equipment, described equipment is the member device that connection error detection CFD networking does not have hardware detection ability, the One equipment is the equipment to be added of described CFD networking, and this equipment includes:

Message sending module, is used for sending LTR message to described first equipment, has hardware for described first equipment Setting up the hardware table item of corresponding this equipment MEP ID during power of test, wherein said LTR message carries the MEP of this member device ID。

In sum, the technical scheme that the present invention proposes can effectively solve the problem that and indiscriminate issue numerous hardware table item and account for By great amount of hardware resources, the problem causing the waste of hardware resource, added dynamically by CFD networking equipment and build with deletion needs The hardware table item of vertical neighborhood, the equipment of improve can support the quantity of Service Instance, it is to avoid useless MEP takies and firmly adds money Source.

Accompanying drawing explanation

Fig. 1 is a kind of CFD networking schematic diagram.

Fig. 2 is LTM multicast address message format.

Fig. 3 is self-defining LTR message format.

Fig. 4 is the networking schematic diagram in embodiment.

Fig. 5 is the flow chart of embodiment of the method 1.

Fig. 6 is the flow chart of embodiment of the method 2.

Fig. 7 is the flow chart of embodiment of the method 3.

Fig. 8 is the flow chart of embodiment of the method 4.

Fig. 9 is the CFD networking device structure to be added schematic diagram with hardware detection ability of one embodiment of the invention.

The CFD networking device structure to be added signal without hardware detection ability of Figure 10 position one embodiment of the invention Figure.

Figure 11 is the CFD networking member device structural representation with hardware detection ability of one embodiment of the invention.

Figure 12 is the CFD networking member device structural representation without hardware detection ability of one embodiment of the invention Figure.

Detailed description of the invention

Clearer for make the object, technical solutions and advantages of the present invention express, below in conjunction with the accompanying drawings and specifically The present invention is further described in more detail for embodiment.

The technical scheme of one embodiment of the invention is:

In the present embodiment, before described first equipment application adds CFD networking, the basic configuration of its CFD completes the most: make Function, configuration service exemplary configuration MEP, the CCM(Continuity Check Message of enable MEP can be detected by CFD, connect Detection messages) message sending function.Described first equipment is as the equipment of CFD networking to be added, no matter whether it possesses hardware Power of test, it is when adding CFD networking, first sends link trace message (LTM, Linktrace Message), described LTM message is LTM multicast address message.

Described LTM multicast address message is that described first equipment is sent to described CFD networking member device, described LTM Purpose MAC(Target MAC in protocol Data Unit (PDU, the Protocol Data Unit) field of multicast address message) For purpose MAC(in Ethernet message head i.e. multicast MAC), its form is the level that value is MEP of 01-80-c2-00-00-3y, y Not, 0 to 7 rank MEP correspondence y values are 8-F, and message format is as shown in Figure 2.Owing to described LTM multicast address message is multicast report Literary composition, so the MEP under same Service Instance can receive in CFD networking, now due to purpose MAC in LTM PDU field For multicast address, the whole member devices receiving described LTM multicast address message in CFD networking all can process this LTM multicast Address message.

Member device in CFD networking is divided into two classes, has the member device of hardware detection ability and does not have hardware inspection The member device of survey ability.This two class members equipment is done after receiving the LTM multicast address message that described first equipment sends Process different, now divide briefing:

(1) member device with hardware detection ability receives the LTM multicast address message that described first equipment sends After, set up to should the MEP ID that carries of LTM multicast address message hardware table item, the neighbours with described first equipment be set close System is normal.There is the member device of hardware detection ability after new MEP ID hardware table item is set, just can identify first The CCM message that equipment is sent.

After described member device receives the LTM multicast address message that described first equipment sends, it is also possible to determine whether Create the hardware table item of corresponding described first equipment MEP ID, if it is, send LTM unicast address message to institute State the first equipment, if it is not, then set up the hardware table item of corresponding described first equipment MEP ID, and send LTM unicast address report Described first equipment given in literary composition.

The bridge MAC that purpose MAC is described first equipment in described LTM unicast address message PDU field, described LTM is mono- The self-defined TLV field broadcasting address message carries the member with hardware detection ability sending described LTM unicast address message The MEP ID of equipment.Because purpose MAC in the LTM PDU field that the member device with hardware detection ability sends is first to set Standby bridge MAC, is unicast address, so only described first equipment can process this LTM clean culture in same Service Instance Address message.

If described first equipment has hardware detection ability, receive then generate after described LTM unicast address message with There is the hardware table item corresponding for MEP ID of the member device of hardware detection ability such that it is able to process and there is hardware detection ability The CCM message sent of member device, the neighborhood setting up its member device having hardware detection ability with CFD networking is normal。

After receiving described LTM unicast address message, described first equipment can also further determine whether to have created The hardware table item of each member device MEP ID in corresponding described CFD networking, if it is, reply LTR message to described CFD group Net sends the member device of LTM unicast address message, otherwise sets up transmission LTM unicast address report in corresponding described CFD networking The hardware table item of the member device MEP ID of literary composition, then replys LTR message to sending LTM unicast address report in described CFD networking The member device of literary composition, described LTR message does not carry the MEP ID of described first equipment.

If described first equipment does not have hardware detection ability, then need not set up corresponding hardware table item just can be directly Process CFD networking and there is the CCM message that the member device of hardware detection ability is sent, set up it, with CFD networking, there is hardware inspection The neighborhood of the member device of survey ability is normal, so first equipment without hardware detection ability receives CFD group After net has the LTM unicast address message that the member device of hardware detection ability is sent, directly reply a LTR message, This LTR message does not carry the MEP ID of this equipment.

(2) member device without hardware detection ability can directly process the CCM report that described first equipment transmission comes Literary composition, does not the most have after the member device of hardware detection ability receives the LTM multicast address message that described first equipment sends, Respond a self-defining LTR message.As it is shown on figure 3, the self-defined TLV(Type/Length/Value of self-defined LTR message, Type/length/value) in carry the MEP ID value of the member device without hardware detection ability.

If described first equipment has hardware detection ability, then generate after receiving described LTR message and do not have firmly The hardware table item corresponding for MEP ID of the member device of part power of test such that it is able to process the one-tenth without hardware detection ability The CCM message that member's equipment is sent, the neighborhood setting up its member device not having hardware detection ability with CFD networking is normal。

After receiving described self-defined LTR message, it is right that described first equipment can also further determine whether to have created Answer the hardware table item of the member device MEP ID in described CFD networking without hardware detection ability, if it is, do not do any Process, otherwise set up the hardware table item of the member device MEP ID in corresponding described CFD networking without hardware detection ability.

If described first equipment does not have hardware detection ability, then need not set up corresponding hardware table item just can be directly Process CFD networking and not there is the CCM message that the member device of hardware detection ability is sent, set up it and do not have firmly with CFD networking The neighborhood of the member device of part power of test is normal.

For avoiding the neighbours being in fail state for a long time to take hardware resource, user can according to oneself need make equipment Enabling automatic link trace (LT, Linktrace) function, when enabling this function, equipment will be removed within the regular hour for a long time It is in the hardware resource that the neighbours of fail state take.It is implemented as follows:

Arranging an intervalometer, trigger intervalometer as device-aware neighbor device fail, after timer expiry, equipment is deleted Hardware table item except corresponding fail state neighbor device MEP ID.This intervalometer sets a time range, user when specifying Long.

User enables automatic LT function, i.e. it is right that certain MEP perception far-end neighbor state fail, and timer expiry is deleted After the hardware table item answered, just self-defining LT message (LTM message or LTR message), subsequent treatment stream in the transmission this case in cycle Journey is as described above.Thus avoiding under the abnormal conditions such as single-pass directly deleting can not be normal after hardware resource can make link normal Process the situation of CCM message.

Below with specific embodiment, situations various to the application illustrate respectively.As shown in Figure 4, Device A is CFD One equipment to be added of networking, its MEP rank is 5, DeviceB～Device D is the member device in CFD networking. Device A～Device D belongs to same Service Instance.Wherein Device B is the equipment with hardware detection ability, Device C and Device D does not have hardware detection ability.And Device B is not set up corresponding with the MEP ID of Device A Hardware table item.

Embodiment 1

Present embodiment assumes that Device A has hardware detection ability, and be not set up corresponding with the MEP ID of Device B Hardware table item, to have the Device A of hardware detection ability and the Device with hardware detection ability in CFD networking B creates as a example by hardware table item sets up neighborhood and illustrates technical scheme, and other CFD networkings have hardware detection The method that the member device of ability creates hardware table item with Device A is identical, does not repeats them here.Fig. 5 is the stream of the present embodiment Cheng Tu, comprises the following steps:

Step 501:Device A sends LTM multicast address message to the member device in CFD networking, described LTM multicast The self-defined TLV field of address message carries the MEP ID value of Device A, and purpose MAC in PDU field is multicast MAC, PDU The bridge MAC that source MAC is DeviceA in field.

In this step, purpose MAC in the PDU field of the LTM multicast address message that Device A sends is multicast MAC, The form of described multicast MAC be 01-80-c2-00-00-3y, y be the rank of described MEP, 0 to 7 rank MEP correspondence y values are 8- F, the MEP rank of the present embodiment Device A is 5, and corresponding y value is D.

Owing to described LTM multicast address message is multicast message, so CFD networking belongs to same clothes with Device A The equipment of pragmatic example all can process this message, i.e. Device B～any one equipment of Device D all can receive this LTM group Broadcast address message and process.

Step 502:Device B receives the LTM multicast address message that Device A sends, and sets up with Device A's Corresponding for MEP ID hardware table item, to arrange the neighborhood with Device A be normal, send LTM unicast address message to Device A。

In this step, Device B receives the LTM multicast address message that Device A sends, and it is hard that contrast has existed Part list item, finds not have corresponding hardware table item, then sets up the hardware table item corresponding with the MEP ID of Device A, arrange It is normal with the neighborhood of Device A.Device B is arranging the hardware table item corresponding with the MEP ID of Device A After, just can identify the CCM message that Device A sends, thus set up and the neighborhood of Device A.

After Device B has created the hardware table item corresponding with the MEP ID of Device A, send a LTM unicast address Message, the bridge MAC that purpose MAC is Device A in described LTM unicast address message PDU field, self-defined TLV field is carried The MEP ID of Device B.Because purpose MAC in the LTM unicast address message PDU field that Device B sends is Device A Bridge MAC, be unicast address, so only Device A can process this LTM unicast address report in same Service Instance Literary composition.

Step 503:Device A receives the LTM unicast address message that Device B sends, and creates corresponding Device B The hardware table item of MEP ID, reply LTR message to Device B.

In this step, Device A receives the LTM unicast address message that Device B sends, and it is hard that contrast has existed Part list item, finds not have corresponding hardware table item, then creates the hardware table item corresponding with the MEP ID of Device B, arrange It is that normal, Device A is arranging the hardware table item corresponding with the MEP ID of Device B with the neighborhood of Device B After, just can identify the CCM message that Device B sends, thus set up and the neighborhood of Device B.

Device A replys LTR message to Device B afterwards.Here, if Device A find existed with The hardware table item corresponding for MEP ID of Device B, does not the most do any process, directly replys LTR report LTM unicast address message Device B given in literary composition, does not carry the MEP ID of Device A in described LTR message.

Embodiment 2

Present embodiment assumes that Device A has hardware detection ability, and be not set up corresponding with the MEP ID of Device C Hardware table item, there is the Device A of hardware detection ability and CFD networking do not have hardware detection ability Device C creates as a example by hardware table item sets up neighborhood and illustrates technical scheme, and other CFD networkings do not have The member device having hardware detection ability is identical with the method that Device A creates hardware table item, does not repeats them here.Fig. 6 is this The flow chart of embodiment, comprises the following steps:

Step 601 is identical with step 501, is not described in detail in this.

Step 602:Device C receive Device A send LTM multicast address message after, respond one self-defined LTR message, described self-defined LTR message carries the MEP ID of Device C.

In this step, Device C does not have hardware detection ability, is not required to set up corresponding with the MEPID of Device A hard Part list item just can directly process Device A and send the CCM message of coming, and therefore Device C receives what Device A sent After LTM multicast address message, respond a self-defining LTR message.The self-defined TLV of self-defined LTR message carries The MEP ID value of Device C.

Step 603:Device A receives the self-defined LTR message from Device C, creates the MEP of corresponding Device C The hardware table item of ID.

In this step, Device A receives and contrasts, after the self-defined LTR message of Device C, the hardware existed List item, finds not have corresponding hardware table item, then creates the hardware table item of the MEP ID of corresponding Device C.Device A After new MEP ID hardware table item is set, just can identify the CCM message that Device C sends, thus set up and Device C Neighborhood, neighbor state is normal.

Embodiment 3

Present embodiment assumes that Device A does not have hardware detection ability, not have the Device A of hardware detection ability Create hardware table item with the Device B with hardware detection ability in CFD networking to set up as a example by neighborhood the application skill Art scheme illustrates, and other CFD networkings have the member device of hardware detection ability and create hardware table item with Device A Method is identical, does not repeats them here.Fig. 7 is the flow chart of the present embodiment, comprises the following steps:

Step 701 is identical with step 501, is not described in detail in this.

Step 702 is identical with step 502, is not described in detail in this.

Step 703:Device A receives the LTM unicast address message that Device B sends, and replys LTR message and gives Device B。

Owing to Device A does not have hardware detection ability, it is not required to set up the corresponding hardware list of MEP ID with Device B Item just can directly process the CCM message that Device B sends, and it is normal with the neighborhood of Device B, so Device After A receives the LTM unicast address message that Device B sends, it is left intact, directly replys a LTR message, should LTR message does not carry the MEP ID of Device A.

Embodiment 4

Present embodiment assumes that Device A does not have hardware detection ability, not have the Device A of hardware detection ability As a example by setting up neighborhood with the Device C without hardware detection ability in CFD networking, technical scheme is carried out Illustrating, the member device that other CFD networkings do not have hardware detection ability is identical with the method that Device A creates hardware table item, Do not repeat them here.Fig. 8 is the flow chart of the present embodiment, comprises the following steps:

Step 801 is identical with step 601, is not described in detail in this.

Step 802 is identical with step 602, is not described in detail in this.

Owing to Device A does not have hardware detection ability, it is not required to set up the corresponding hardware list of MEP ID with Device C Item just can directly process the CCM message that Device C sends, and it is normal with the neighborhood of Device C, so Device After A receives the self-defined LTR message that Device C sends, it is left intact.

When above example adds CFD networking with the equipment with hardware detection ability, have firmly with CFD networking respectively Create hardware table item between equipment and the equipment without hardware detection ability of part power of test and set up neighborhood, and not There is the equipment of hardware detection ability when adding CFD networking, with CFD networking, there is the equipment and not of hardware detection ability respectively Have between the equipment of hardware detection ability to create as a example by hardware table item sets up neighborhood and technical solution of the present invention is carried out Illustrate, by embodiment it can be seen that only set up hard the most accordingly when equipment needs to communicate with the member device in CFD networking Part list item rather than initial time all MEP lists that just a Service Instance can be included all be issued to hardware, it is to avoid nothing Taking hardware resource with MEP, the equipment of improve can support the quantity of Service Instance.

For said method, invention additionally discloses a kind of equipment, described equipment is for having in connection error detection CFD networking The equipment to be added of hardware detection ability, equipment disclosed by the invention is as it is shown in figure 9, include:

Message sending module 901, for sending link trace LTM multicast address message to the member in described CFD networking Equipment, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of this equipment, described LTM multicast Purpose MAC in address message protocol Data Unit PDU field is multicast MAC, the bridge that source MAC is this equipment in PDU field MAC；

Message receiver module 902, for receive LTM unicast address message that member device in described CFD networking sends or Link trace response LTR message, wherein,

List item creation module 903, for setting up the hardware of each member device MEPID in corresponding described CFD networking respectively List item, arranging with the neighborhood of corresponding member device is normal.

Described equipment farther includes,

Judge module 904, receives, for described message receiver module 902, the LTM that in described CFD networking, member device sends After unicast address message or LTR message, it may be judged whether created each member device MEP ID in corresponding described CFD networking Hardware table item, if NO, instruction list item creation module creates corresponding hardware table item, arranges the neighbours with corresponding member device Relation is normal.

Described message sending module 901 is further used for, if described message receiver module receives in described CFD networking The LTM unicast address message that member's equipment sends, sends LTR message to the one-tenth sending LTM unicast address message in described CFD networking Member's equipment, described LTR message does not carry the MEPID of described first equipment.

For said method, the invention also discloses a kind of equipment, described equipment in connection error detection CFD networking not Having the equipment to be added of hardware detection ability, as shown in Figure 10, this equipment includes:

Message sending module 1001, for sending link trace LTM multicast address message to the member in described CFD networking Equipment, described LTM multicast address message carries the rank safeguarding end points MEP and the MEP ID value of this equipment, described LTM multicast Purpose MAC in address message protocol Data Unit PDU field is multicast MAC, the bridge that source MAC is this equipment in PDU field MAC；

Message receiver module 1002, for receive LTM unicast address message that member device in described CFD networking sends or Link trace response LTR message；Wherein,

If described message receiver module 1002 receives the LTM unicast address report that in described CFD networking, member device sends Literary composition,

Described message sending module 1001 is further used for, and sends LTR message to sending LTM clean culture in described CFD networking The member device of address message, described LTR message does not carry the MEPID of described first equipment.

For said method, invention additionally discloses a kind of equipment, described equipment has for connection error detection CFD networking firmly The member device of part power of test, the first equipment is the equipment to be added of described CFD networking, and as shown in figure 11, this equipment includes:

Message receiver module 1101, for receiving the link trace LTM multicast address message that described first equipment sends, institute State LTM multicast address message and carry the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast Purpose MAC in the protocol Data Unit PDU field of address message is multicast MAC, and the source MAC in PDU field is described first The bridge MAC of equipment；

List item creation module 1102, for setting up the hardware table item of the MEP ID of corresponding described first equipment, is arranged and institute The neighborhood stating the first equipment is normal；

Message sending module 1103, is used for sending LTM unicast address message to described first equipment, for described first Equipment sets up the hardware table item of corresponding this equipment MEP ID, described LTM unicast address message PDU word when having hardware detection ability Purpose MAC in Duan is the bridge MAC of described first equipment, and described LTM unicast address message carries the MEP ID of this equipment.

Described equipment also includes, it is judged that module 1104, receives, for described member device, the LTM that described first equipment sends After multicast address message, it may be judged whether created the hardware table item of corresponding described first equipment MEP ID, if NO, instruction List item creation module sets up the hardware table item of the MEP ID of corresponding described first equipment, arranges the neighbours with described first equipment and closes System is normal.

For said method, invention additionally discloses a kind of equipment, described equipment does not has for connection error detection CFD networking The member device of hardware detection ability, the first equipment is the equipment to be added of described CFD networking, as shown in figure 12, this equipment bag Include:

Message receiver module 1201, for receiving the link trace LTM multicast address message that described first equipment sends, institute State LTM multicast address message and carry the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast Purpose MAC in the protocol Data Unit PDU field of address message is multicast MAC, and the source MAC in PDU field is described first The bridge MAC of equipment；

Message sending module 1202, is used for sending link trace response LTR message to described first equipment, for described First equipment sets up the hardware table item of corresponding this equipment MEP ID when having hardware detection ability, wherein said LTR message carries The MEP ID of this member device.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any modification, equivalent substitution and improvement etc. done within god and principle, within should be included in the scope of protection of the invention.

Claims

1. connect the method that error detection group network system hardware table item generates, be applied to described connection error detection CFD group Net has first equipment to be added of hardware detection ability, it is characterised in that the method includes:

Described first equipment sends link trace LTM multicast address message to the member device in described CFD networking, described LTM Multicast address message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast address report Purpose MAC in literary composition protocol Data Unit PDU field is multicast MAC, and the source MAC in PDU field is the bridge of described first equipment MAC；

Described first equipment receives the LTM unicast address message or link trace response that in described CFD networking, member device sends LTR message, sets up the hardware table item of each member device MEP ID in corresponding described CFD networking respectively, arranges and corresponding member The neighborhood of equipment is normal；Wherein,

Described LTM unicast address message is that the member device in described CFD networking with hardware detection ability is according to described first The LTM multicast address message that equipment sends is set up the hardware table item of the MEP ID of corresponding described first equipment, is arranged and described the The neighborhood of one equipment is transmission after normal, and purpose MAC in described LTM unicast address message PDU field is described The bridge MAC of the first equipment, described LTM unicast address message carries in the CFD networking sending described LTM unicast address message to be had The MEP ID of the member device of hardware detection ability；

Described LTR message is that the member device in described CFD networking without hardware detection ability is sent out according to described first equipment The LTM multicast address message sent sends, and described LTR message carries in the CFD networking sending described LTR message does not have hardware The MEP ID of the member device of power of test.

Method the most according to claim 1, it is characterised in that the method farther includes:

After described first equipment receives the LTM unicast address message or LTR message that in described CFD networking, member device sends, sentence Break and created the hardware table item of each member device MEP ID in corresponding described CFD networking, if it is, reply LTR Message gives the member device sending LTM unicast address message in described CFD networking, if it is not, then set up corresponding described CFD networking The hardware table item of middle member device MEP ID, and reply LTR message to described CFD networking sends LTM unicast address message Member device, described LTR message does not carry the MEP ID of described first equipment.

3. connect the method that error detection group network system hardware table item generates, be applied to described connection error detection CFD group Net does not have first equipment to be added of hardware detection ability, it is characterised in that the method includes:

Described first equipment receives the LTM unicast address message or link trace response that in described CFD networking, member device sends LTR message；Wherein,

Method the most according to claim 3, it is characterised in that the method farther includes:

After described first equipment receives the LTM unicast address message that in described CFD networking, member device sends, described first equipment Reply LTR message gives the member device sending LTM unicast address message in described CFD networking, and described LTR message does not carry described The MEP ID of the first equipment.

5. connect the method that error detection group network system hardware table item generates, be applied to described connection error detection CFD group Having the member device of hardware detection ability in net, the first equipment is the equipment to be added of described CFD networking, it is characterised in that The method includes:

Described member device receives the link trace LTM multicast address message that described first equipment sends, described LTM multicast address Message carries the rank safeguarding end points MEP and the MEP ID value of described first equipment, the agreement of described LTM multicast address message Purpose MAC in data cell PDU field is multicast MAC, and the source MAC in PDU field is the bridge MAC of described first equipment；

Described member device sets up the hardware table item of the MEP ID of corresponding described first equipment, arranges the neighbour with described first equipment The relation of residence is normal；

Described member device transmission LTM unicast address message, to described first equipment, has hardware for described first equipment The hardware table item of corresponding described member device MEP ID is set up, in described LTM unicast address message PDU field during power of test Purpose MAC is the bridge MAC of described first equipment, and described LTM unicast address message carries the MEP ID of described member device.

Method the most according to claim 5, it is characterised in that the method farther includes:

After described member device receives the LTM multicast address message that described first equipment sends, it may be judged whether created correspondence The hardware table item of described first equipment MEP ID, if it is, transmission LTM unicast address message is to described first equipment, if No, then set up the hardware table item of corresponding described first equipment MEP ID, and send LTM unicast address message and set to described first Standby.

7. connect the method that error detection group network system hardware table item generates, be applied to described connection error detection CFD group Not having the member device of hardware detection ability in net, the first equipment is the equipment to be added of described CFD networking, and its feature exists In, the method includes:

Described member device reply LTR message gives described first equipment, has hardware detection ability for described first equipment The hardware table item of the corresponding described member device MEP ID of Shi Jianli, wherein said LTR message carries the MEP of described member device ID。

8. one kind connects the equipment to be added in the networking of error detection CFD with hardware detection ability, it is characterised in that this equipment Including:

Message sending module, for sending link trace LTM multicast address message to the member device in described CFD networking, institute State LTM multicast address message and carry the rank safeguarding end points MEP and the MEP ID value of this equipment, described LTM multicast address report Purpose MAC in literary composition protocol Data Unit PDU field is multicast MAC, the bridge MAC that source MAC is this equipment in PDU field；

Message receiver module, for receiving the LTM unicast address message or link trace that in described CFD networking, member device sends Response LTR message, wherein,

Described LTM unicast address message is that the member device in described CFD networking with hardware detection ability is sent out according to this equipment The LTM multicast address message sent sets up the hardware table item of the MEP ID of this equipment corresponding, setting with the neighborhood of this equipment is Sending after normal, the bridge MAC that purpose MAC is this equipment in described LTM unicast address message PDU field, described LTM is mono- Broadcast address message and carry the member device in the CFD networking sending described LTM unicast address message with hardware detection ability MEP ID；

Described LTR message is not have the LTM that the member device of hardware detection ability sends according to this equipment in described CFD networking Multicast address message sends, and described LTR message carries in the CFD networking sending described LTR message does not have hardware detection energy The MEP ID of the member device of power；

List item creation module, for setting up the hardware table item of each member device MEP ID in corresponding described CFD networking respectively, if Putting the neighborhood with corresponding member device is normal.

Equipment the most according to claim 8, it is characterised in that this equipment farther includes:

Judge module, receives, for this equipment, the LTM unicast address message or LTR report that in described CFD networking, member device sends Wen Hou, it may be judged whether created the hardware table item of each member device MEP ID in corresponding described CFD networking, if NO, Instruction list item creation module creates corresponding hardware table item, and arranging with the neighborhood of corresponding member device is normal；

Described message sending module is further used for, if described message receiver module receives member device in described CFD networking The LTM unicast address message sent, sends LTR message and sets to the member sending LTM unicast address message in described CFD networking Standby, described LTR message does not carry the MEP ID of described first equipment.

10. one kind connects the equipment to be added in the networking of error detection CFD without hardware detection ability, it is characterised in that should Equipment includes:

Message receiver module, for receiving the LTM unicast address message or link trace that in described CFD networking, member device sends Response LTR message；Wherein,

Described LTM unicast address message is to have the member device of hardware detection ability in described CFD networking according to described message The LTM multicast address message that sending module sends is set up the hardware table item of the MEP ID of this equipment corresponding, is arranged and this equipment Neighborhood is transmission after normal, the bridge that purpose MAC is this equipment in described LTM unicast address message PDU field MAC, described LTM unicast address message carries in the CFD networking sending described LTM unicast address message has hardware detection ability The MEP ID of member device；

Described LTR message is that the member device in described CFD networking without hardware detection ability sends mould according to described message The LTM multicast address message that block sends sends, and described LTR message carries in the CFD networking sending described LTR message not to be had The MEP ID of the member device of hardware detection ability.

11. equipment according to claim 10, it is characterised in that if described message receiver module receives described CFD group The LTM unicast address message that in net, member device sends,

Described message sending module is further used for, and sends LTR message to sending LTM unicast address message in described CFD networking Member device, described LTR message does not carry the MEP ID of this equipment.

12. 1 kinds connect the networking of error detection CFD and have the member device of hardware detection ability, and the first equipment is described CFD group The equipment to be added of net, it is characterised in that this equipment includes:

Message receiver module, for receiving the link trace LTM multicast address message that described first equipment sends, described LTM group Broadcast address message and carry the rank safeguarding end points MEP and the MEP ID value of described first equipment, described LTM multicast address message Protocol Data Unit PDU field in purpose MAC be multicast MAC, the source MAC in PDU field is the bridge of described first equipment MAC；

List item creation module, for setting up the hardware table item of the MEP ID of corresponding described first equipment, arranges and sets with described first Standby neighborhood is normal；

Message sending module, is used for sending LTM unicast address message to described first equipment, has for described first equipment The hardware table item of corresponding this equipment MEP ID, the mesh in described LTM unicast address message PDU field is set up during hardware detection ability The bridge MAC that MAC is described first equipment, described LTM unicast address message carries the MEP ID of this equipment.

13. equipment according to claim 12, it is characterised in that this equipment farther includes:

Judge module, after described member device receives the LTM multicast address message that described first equipment sends, it may be judged whether Having created the hardware table item of corresponding described first equipment MEP ID, if NO, instruction list item creation module sets up corresponding institute Stating the hardware table item of the MEP ID of the first equipment, arranging the neighborhood with described first equipment is normal.

14. 1 kinds connect the networking of error detection CFD and do not have the member device of hardware detection ability, and the first equipment is described CFD The equipment to be added of networking, it is characterised in that this equipment includes:

Message sending module, is used for sending LTR message to described first equipment, has hardware detection for described first equipment Setting up the hardware table item of corresponding this equipment MEP ID during ability, wherein said LTR message carries the MEP ID of this member device.