CN105812208A - Multipoint service performance statistic method and system in frame type data communication device - Google Patents
Multipoint service performance statistic method and system in frame type data communication device Download PDFInfo
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- CN105812208A CN105812208A CN201610297118.4A CN201610297118A CN105812208A CN 105812208 A CN105812208 A CN 105812208A CN 201610297118 A CN201610297118 A CN 201610297118A CN 105812208 A CN105812208 A CN 105812208A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
Abstract
The invention discloses a multipoint service performance statistic method and system in a frame type data communication device, and relates to the field of performance statistics of the data communication device in optical communication. The method comprises following steps of distributing 4 counters to multipoint services; binding the IDs of the 4 counters with the multipoint services; issuing to service processing units in which all multipoint service ports are located; after import service processing units obtain the data packets of the multipoint services, setting the fields of the CounterID<receiving packets> as 1; setting the fields of the CounterID<receiving bytes> as Length; after export service processing units receive the data packets of the IDs and fields of the CounterID<receiving packets> and the CounterID<receiving bytes>, setting the fields of the CounterID<sending packets> as 1; setting the fields of the CounterID<sending bytes> as Length; and reporting the IDs and fields of the 4 counts to a master control unit by all export service processing units periodically through the management channels in network elements. According to the method and the system, the problem network elements can be positioned, and statistics is carried out on packet loss resulting from various conditions.
Description
Technical field
The present invention relates to the performance statistics field of datacom device in optic communication, the performance accounting method of the multipoint service being specifically related in a kind of frame datacom device and system.
Background technology
Along with the lasting propelling of telecommunication service IPization, and the integration of three networks, home broadband, mobile Internet universal rapidly, bring the explosive growth of network traffics, " flow is daily necessities " is obtaining the generally accreditation of the public, no longer repels flow consumption.Therefore, huge flow consumption will bring considerable business revenue to increase；But, continue and legacy network devices, the particularly performance of metropolitan area load bearing equipment defined immense pressure by the growth of quick flow.Make fine work server, be to make one efficiently, high resiliency, can O&M, can the network of evolution, SDN (SoftwareDefinedNetwork, software defined network) is subject to rapidly affirmative one of active path just of operator.
For the concern of operator, each equipment vendor has carried out the traffic management ability constantly making great efforts to strengthen equipment.Such as embedded RFC2544 testing tool, Y.1564 Ethernet Private Line commissioning instrument, the time delay based on Y.1731, packet loss, throughput are tested in a device, and IP-based TWAMP (two-way active test) instrument.Above-mentioned instrument drastically increases convenience and the effectiveness of network quality assessment, it might even be possible to accomplishes clocked flip, automatically run and output pattern form, directly instructs the network optimization, receives net fortune, the height of network optimization department can be determined.
But, although above-mentioned instrument can solve the problem that network quality evaluation and test end to end, but for problem business, it is difficult to orientation problem network element:
Such as: shown in Figure 1, in Metropolitan Area Network (MAN), user A and user B is 2 typical private line services.Under normal circumstances, the service quality (CIR, PIR, time delay, delay variation etc.) of 2 business can both meet configuration requirement.But data network is substantially the network of statistic multiplexing, and along with the increase of bearer traffic, quality of service is likely to occur decline end to end.Now, applying general measure means, such as TWAMP, being only able to detect time delay end to end increases, and packet loss increases, and can not be accurately positioned problem network element.In Fig. 1, private line service 1 is through network element A, B, C, D, E, and private line service 2 is through network element F, B, C, D, E, and how quick positioning question place network element becomes difficult point and the pain spot of network O&M.Particularly to frame datacom device, for instance PTN (PacketTransportNetwork, Packet Transport Network) equipment, IPRAN (wireless access network IPization) equipment, switch etc., especially true.
Shown in Figure 2, the Typical Disposition of frame datacom device is: centered by switching network, and configurable polylith Service Interface Card, system has good elasticity and extensibility.The srvice instance of one such as L2VPN (VPN (virtual private network) of data link layer) or L3VPN (VPN (virtual private network) of Internet) etc., it is necessary at least 2 pieces of Service Processing Units and switching network unit complete jointly；The typical services handling process of srvice instance is shown in Figure 3.
Known referring to Fig. 2 and Fig. 3, for the multipoint service in frame datacom device, such as VPLS (VirtualPrivateLanService, VPLS), VRF (VirtualRoutingForwarding, VPN route forwarding table), it is typically characterised by network element and is jointly carried by many line cards, multiport, and therefore reporting of performance statistics becomes very thorny.
Summary of the invention
For the defect existed in prior art, present invention solves the technical problem that as orientation problem network element, add up the packet loss that multiple situation (channel failure between Service Processing Unit, network congestion, qos policy etc.) causes.
For reaching object above, the performance accounting method of the multipoint service in frame datacom device provided by the invention, the method comprises the following steps:
S1: the enumerator that the main control unit of frame datacom device is multipoint service distribution 4 at least 64 is respectively as follows:
(1) packet receiving counter CounterIDPacket receiving: for the packet entering multipoint service from all of the port is counted；
(2) give out a contract for a project counter CounterIDGive out a contract for a project: for the packet leaving multipoint service from all of the port is counted；
(3) byte number enumerator CounterID is receivedReceive word: for the byte number entering multipoint service from all of the port is counted；
(4) byte number enumerator CounterID is sent outSend out word: for the byte number leaving multipoint service from all of the port is counted；
S2: the ID of above-mentioned 4 enumerators is bound with multipoint service, and is issued to the Service Processing Unit at all multipoint service member port places；
S3: the access service processing unit of frame datacom device, the packet that network element is sent carries out bag process, obtains the packet of the multipoint service corresponding with the packet that network element sends；By CounterIDPacket receiving+ 1, CounterIDPacket receivingField be 1；By CounterIDReceive wordByte number Length, CounterID plus the packet of current multipoint serviceReceive wordField be Length；
S4: by CounterIDPacket receivingAnd CounterIDReceive wordID and field encapsulation to the packet of current multipoint service, sent to the export business processing unit of frame datacom device by switching network；
S5: after the packet received is carried out packet transaction and QoS process by export business processing unit, export business processing unit reads CounterIDPacket receivingAnd CounterIDReceive wordID and field；By CounterIDGive out a contract for a projectAnd CounterIDSend out wordCarry out following counting: CounterID respectivelyGive out a contract for a project=original value+1, CounterIDGive out a contract for a projectField be 1；CounterIDSend out word=original value+Length, CounterIDSend out wordField be Length；
S6: all outlet ports Service Processing Unit periodically by the ID of 4 enumerators and field, reports to main control unit by the management passage in network element.
On the basis of technique scheme, in S4, the form of packet after encapsulation is: FIH, be packaged with CounterIDPacket receivingAnd CounterIDReceive wordID and the header information of frame datacom device of field, ETH, IPHeader, Data and CRC.
On the basis of technique scheme, after S6 further comprising the steps of: S7: field identical for all CounterID is added up by main control unit, obtain the multipoint service total packet receiving counting in measurement period, counting of giving out a contract for a project, packet receiving byte number and byte number of giving out a contract for a project.
On the basis of technique scheme, periodic interval time described in S6 is send 1 time for 1 second.
On the basis of technique scheme, the flow process that bag described in S3 processes includes interface and processes and the process of flow point class.
On the basis of technique scheme, described in S1,4 enumerators are 16bit width.
On the basis of technique scheme, described in S1,4 enumerators are 132.
8, the performance statistics system of the multipoint service in a kind of frame datacom device realizing said method, is arranged in the enumerator distribution module on main control unit, the enumerator binding module sum counter package module being positioned at frame datacom device and the enumerator read module sum counter reporting module being positioned on export business unit；
Enumerator distribution module is used for: the enumerator for multipoint service distribution 4 at least 64 is respectively as follows:
(1) packet receiving counter CounterIDPacket receiving: for the packet entering multipoint service from all of the port is counted；
(2) give out a contract for a project counter CounterIDGive out a contract for a project: for the packet leaving multipoint service from all of the port is counted；
(3) byte number enumerator CounterID is receivedReceive word: for the byte number entering multipoint service from all of the port is counted；
(4) byte number enumerator CounterID is sent outSend out word: for the byte number leaving multipoint service from all of the port is counted；
Enumerator binding module is used for: the ID of 4 enumerators that enumerator distributes module assignment binds with multipoint service, and is issued to the Service Processing Unit at all multipoint service member port places；
Enumerator package module is used for: by CounterIDPacket receivingAnd CounterIDReceive wordID and field encapsulate to the packet of multipoint service, sent to the export business processing unit of frame datacom device by switching network；
Enumerator read module is used for: read CounterIDPacket receivingAnd CounterIDReceive wordID and field；By CounterIDGive out a contract for a projectAnd CounterIDSend out wordCarry out following counting: CounterID respectivelyGive out a contract for a project=original value+1, CounterIDGive out a contract for a projectField be 1；CounterIDSend out word=original value+Length, CounterIDSend out wordField be Length；
Enumerator reporting module is used for: periodically by the ID of 4 enumerators and field, report to main control unit by the management passage in network element.
On the basis of technique scheme, this system also includes the counters count module being positioned on main control unit, it is used for: field identical for all CounterID added up, and obtains the multipoint service total packet receiving counting in measurement period, counting of giving out a contract for a project, packet receiving byte number and byte number of giving out a contract for a project.
On the basis of technique scheme, described frame datacom device is PTN device, and described multipoint service is VPLS.
Compared with prior art, it is an advantage of the current invention that:
The present invention is that multipoint service is assigned 4 enumerators: packet receiving, give out a contract for a project, receive byte and send out byte.When network element sends packet, 4 enumerators can be added up the packet receiving quantity of multipoint service packet, quantity of giving out a contract for a project respectively, receive byte length and send out byte length, and then determine overall transmitting-receiving bag quantity and transmitting-receiving byte length.It follows that the present invention can the transmitting-receiving bag number of each network element device of accurate count, if network element packet receiving number is different with number of giving out a contract for a project, then may determine that this network element is problem network element.
Meanwhile, the present invention only adds up at access service processing unit and export business processing unit, and then the packet loss that therefore multipoint service, qos policy cause all can be learnt by the present invention.Therefore, the present invention can the packet loss that causes of whole multiple situations of free from error statistics (such as channel failure between Service Processing Unit, network congestion, qos policy etc.).
Accompanying drawing explanation
Fig. 1 be in prior art in Metropolitan Area Network (MAN) private line service flow to schematic diagram；
Fig. 2 is the configuration schematic diagram of frame datacom device in prior art；
Fig. 3 is the business processing flow schematic diagram of frame datacom device in prior art；
Fig. 4 is the schematic diagram of VPLS example i in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Frame datacom device in the embodiment of the present invention is PTN device, multipoint service is VPLS, shown in participation Fig. 4, VPLS contains 4 UNI (UserNetworksinterface, family network-side port), 2 NNI (NetworktoNetworkInterface, network-side port) and cross over 4 pieces of line cards；4 pieces of line cards complete the task that data forward jointly.Under traditional design thinking, the performance statistics of this VPLS is difficult to, and reason is in that the uncertainty of business, and the bag of a port reception is likely to mail to other any 5 ports, and before completing shunting class action, it is impossible to determine whether to belong to this VPLS；Before completing packet transaction, it is impossible to determine port.Further, since QoS (QualityofService, service quality) is tactful, port congestion can result in this packet and is dropped.Therefore, the performance statistics based on VPLS becomes difficult to achieve.
On this basis, the performance accounting method of the multipoint service (VPLS) in frame datacom device (PTN device) in the embodiment of the present invention, comprise the following steps:
S1: when creating VPLS example i, the main control unit of frame datacom device is this VPLS enumerator (enumerator can also be 132) distributing the 16bit width of 4 at least 64, is respectively as follows:
(1) packet receiving counter CounterIDPacket receiving: for the packet entering VPLS example i from all of the port is counted.
(2) give out a contract for a project counter CounterIDGive out a contract for a project: for the packet leaving VPLS example i from all of the port is counted.
(3) byte number enumerator CounterID is receivedReceive word: for the byte number entering VPLS example i from all of the port is counted.
(4) byte number enumerator CounterID is sent outSend out word: for the byte number leaving VPLS example i from all of the port is counted.
S2: above-mentioned 4 enumerator ID and VPLS are bound, and it is issued to the Service Processing Unit at all VPLS member port places, namely each Service Processing Unit has all bound above-mentioned 4 enumerators.
S3: the access service processing unit of frame datacom device, the packet that network element is sent carries out bag process (interface processes and flow point class processes), obtains the packet of the VPLS example i corresponding with the packet that network element sends.By CounterIDPacket receiving+ 1, i.e. CounterIDPacket receiving=original value+1, CounterIDPacket receivingField be 1；By CounterIDReceive wordByte number Length, i.e. CounterID plus the packet of current VPLS example iReceive word=original value+Length, CounterIDReceive wordField be Length.
S4: in order to carry out, in outlet port unit, counting of giving out a contract for a project, by CounterIDPacket receivingAnd CounterIDReceive wordID and field encapsulation to the packet of current VPLS example i, sent to the export business processing unit of frame datacom device by switching network.
Ginseng is shown in Table 1, and the form of the packet after encapsulation is: FIH (FabricInterfaceHeader, the header information of switching network interface)；It is packaged with CounterIDPacket receivingAnd CounterIDReceive wordID and the header information of frame datacom device of field, the present embodiment is PPH (PacketProcessHeader, packet transaction header information)；ETH (Ethernet), IPHeader (the IP header information of current data packet), Data (data of current data packet) and CRC (CyclicRedundancyChec, cyclic redundancy check (CRC)).
Table 1, send to the data packet format of switching network
S5: after the packet received is carried out packet transaction and QoS process by export business processing unit, the microcode of NP (network processing unit) chip of export business processing unit reads CounterID from PPHPacket receivingAnd CounterIDReceive wordID and field.By CounterIDGive out a contract for a projectAnd CounterIDSend out wordCarry out following counting: CounterID respectivelyGive out a contract for a project=original value+1 (i.e. CounterIDPacket receivingField), CounterIDGive out a contract for a projectField be 1；CounterIDSend out word=original value+Length (i.e. CounterIDReceive wordField), CounterIDSend out wordField be Length.
S6: the ID by 4 enumerators of the NP chip periodicity (interval sends 1 time or other for 1 second, can freely configure) of all outlet ports Service Processing Unit and field, reports to main control unit by the management passage in network element.
S7: field identical for all CounterID is added up by main control unit, obtains the VPLS example i total packet receiving in measurement period counting, counting of giving out a contract for a project, packet receiving byte number and byte number of giving out a contract for a project；The statistical report of second level flow, 15 minutes flows can be carried out accordingly.
The performance statistics system of the multipoint service in the frame datacom device realizing said method in the embodiment of the present invention, identical with the description in claims, do not repeat at this.The NP chip in enumerator read module sum counter reporting module correspondence said method in this system.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, and these improvements and modifications are also considered as within protection scope of the present invention.The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. the performance accounting method of the multipoint service in a frame datacom device, it is characterised in that the method comprises the following steps:
S1: the enumerator that the main control unit of frame datacom device is multipoint service distribution 4 at least 64 is respectively as follows:
(1) packet receiving counter CounterIDPacket receiving: for the packet entering multipoint service from all of the port is counted；
(2) give out a contract for a project counter CounterIDGive out a contract for a project: for the packet leaving multipoint service from all of the port is counted；
(3) byte number enumerator CounterID is receivedReceive word: for the byte number entering multipoint service from all of the port is counted；
(4) byte number enumerator CounterID is sent outSend out word: for the byte number leaving multipoint service from all of the port is counted；
S2: the ID of above-mentioned 4 enumerators is bound with multipoint service, and is issued to the Service Processing Unit at all multipoint service member port places；
S3: the access service processing unit of frame datacom device, the packet that network element is sent carries out bag process, obtains the packet of the multipoint service corresponding with the packet that network element sends；By CounterIDPacket receiving+ 1, CounterIDPacket receivingField be 1；By CounterIDReceive wordByte number Length, CounterID plus the packet of current multipoint serviceReceive wordField be Length；
S4: by CounterIDPacket receivingAnd CounterIDReceive wordID and field encapsulation to the packet of current multipoint service, sent to the export business processing unit of frame datacom device by switching network；
S5: after the packet received is carried out packet transaction and QoS process by export business processing unit, export business processing unit reads CounterIDPacket receivingAnd CounterIDReceive wordID and field；By CounterIDGive out a contract for a projectAnd CounterIDSend out wordCarry out following counting: CounterID respectivelyGive out a contract for a project=original value+1, CounterIDGive out a contract for a projectField be 1；CounterIDSend out word=original value+Length, CounterIDSend out wordField be Length；
S6: all outlet ports Service Processing Unit periodically by the ID of 4 enumerators and field, reports to main control unit by the management passage in network element.
2. the performance accounting method of the multipoint service in frame datacom device as claimed in claim 1, it is characterised in that: in S4, the form of packet after encapsulation is: FIH, be packaged with CounterIDPacket receivingAnd CounterIDReceive wordID and the header information of frame datacom device of field, ETH, IPHeader, Data and CRC.
3. the performance accounting method of the multipoint service in frame datacom device as claimed in claim 1, it is characterized in that: further comprising the steps of after S6: S7: field identical for all CounterID is added up by main control unit, obtain the multipoint service total packet receiving counting in measurement period, counting of giving out a contract for a project, packet receiving byte number and byte number of giving out a contract for a project.
4. the performance accounting method of the multipoint service in frame datacom device as claimed in claim 1, it is characterised in that: periodic interval time described in S6 is send 1 time for 1 second.
5. the performance accounting method of the multipoint service in frame datacom device as claimed in claim 1, it is characterised in that: the flow process that bag described in S3 processes includes interface and processes and the process of flow point class.
6. the performance accounting method of the multipoint service in the frame datacom device as described in any one of claim 1 to 5, it is characterised in that: described in S1,4 enumerators are 16bit width.
7. the performance accounting method of the multipoint service in the frame datacom device as described in any one of claim 1 to 5, it is characterised in that: described in S1,4 enumerators are 132.
8. the performance statistics system of the multipoint service realized in the frame datacom device of method described in any one of claim 1 to 7, it is characterised in that: it is arranged in the enumerator distribution module on main control unit, the enumerator binding module sum counter package module being positioned at frame datacom device and the enumerator read module sum counter reporting module being positioned on export business unit；
Enumerator distribution module is used for: the enumerator for multipoint service distribution 4 at least 64 is respectively as follows:
(1) packet receiving counter CounterIDPacket receiving: for the packet entering multipoint service from all of the port is counted；
(2) give out a contract for a project counter CounterIDGive out a contract for a project: for the packet leaving multipoint service from all of the port is counted；
(3) byte number enumerator CounterID is receivedReceive word: for the byte number entering multipoint service from all of the port is counted；
(4) byte number enumerator CounterID is sent outSend out word: for the byte number leaving multipoint service from all of the port is counted；
Enumerator binding module is used for: the ID of 4 enumerators that enumerator distributes module assignment binds with multipoint service, and is issued to the Service Processing Unit at all multipoint service member port places；
Enumerator package module is used for: by CounterIDPacket receivingAnd CounterIDReceive wordID and field encapsulate to the packet of multipoint service, sent to the export business processing unit of frame datacom device by switching network；
Enumerator read module is used for: read CounterIDPacket receivingAnd CounterIDReceive wordID and field；By CounterIDGive out a contract for a projectAnd CounterIDSend out wordCarry out following counting: CounterID respectivelyGive out a contract for a project=original value+1, CounterIDGive out a contract for a projectField be 1；CounterIDSend out word=original value+Length, CounterIDSend out wordField be Length；
Enumerator reporting module is used for: periodically by the ID of 4 enumerators and field, report to main control unit by the management passage in network element.
9. the performance statistics system of the multipoint service in frame datacom device as claimed in claim 8, it is characterized in that: this system also includes the counters count module being positioned on main control unit, it is used for: field identical for all CounterID added up, and obtains the multipoint service total packet receiving counting in measurement period, counting of giving out a contract for a project, packet receiving byte number and byte number of giving out a contract for a project.
10. the performance statistics system of the multipoint service in frame datacom device as claimed in claim 8 or 9, it is characterised in that: described frame datacom device is PTN device, and described multipoint service is VPLS.
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| CN114125912A (en) * | 2021-10-27 | 2022-03-01 | 中盈优创资讯科技有限公司 | Method and device for positioning packet loss fault of 5G special line service |
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