CN101296191B - Method and device for monitoring packet loss rate based on per hop behavior - Google Patents
Method and device for monitoring packet loss rate based on per hop behavior Download PDFInfo
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- CN101296191B CN101296191B CN200810126179XA CN200810126179A CN101296191B CN 101296191 B CN101296191 B CN 101296191B CN 200810126179X A CN200810126179X A CN 200810126179XA CN 200810126179 A CN200810126179 A CN 200810126179A CN 101296191 B CN101296191 B CN 101296191B
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Abstract
The invention discloses a method for monitoring packet loss ratio based on per hop behavior, which comprises the steps that: a source-end maintenance end point (MEP) generates an LM request message of a current time period corresponding to each of set PHBs and sends the LM request message to a termination end MEP; the source-end MEP receives the LM response message of the current time period, which is generated by the termination end MEP respectively corresponding to each LM request message of the current time period; according to the LM response message of the current time period corresponding to the PHB and the LM response message of a former time period, the remote-end packet loss ratio and the near-end packet loss ratio of each PHB within the current time period are calculated respectively. The invention also discloses a device for monitoring the packet loss ratio based on the per hop behavior. The device calculates the remote-end packet loss ratio and the near-end packet loss ratio of a plurality of the PHBs by a setting module, a message generating module, a recognition module and a calculation module. By adopting the method of the invention, the function of monitoring the packet loss ratio of a plurality of the PHBs on a link during message transmission process can be realized.
Description
Technical field
The present invention relates to network operation, management, safeguard (OAM, Operation, Administration, Maintenance) technology, relate in particular to a kind of based on the method and the device that whenever slip a line to (PHB, Per-Hop Behaviour) monitoring frame loss rate.
Background technology
Multiprotocol Label Switching Protocol (T-MPLS), in the carrier class core net transportation protocol (PBT), for the link performance to network is monitored, introduced packet loss monitoring (LM) function, at present this function can be monitored the packet loss of message transport process of the business of predefined some service quality ratings on a certain link, but a link can carry the business of a plurality of service quality ratings, both a plurality of different PHB, the client only is concerned about the wherein business of some service quality ratings, but be concerned about the wherein packet drop of the business of certain several service quality rating probably, for example a typical situation is, the client may be concerned about the wherein transmission packet loss of all better quality business, but at present the LM function only can be monitored a kind of in described all better quality business, can not satisfy client's demand.
Summary of the invention
In view of this, it is a kind of based on the method and the device that whenever slip a line to monitoring frame loss rate that main purpose of the present invention is to provide, and realized the function of the message transport process packet loss of a plurality of PHB on the monitoring link.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind ofly based on the method for whenever slipping a line to monitoring frame loss rate be set the time period, it is the PHB of PHB as the needs monitoring that one or more whenever slipping a line is set, and is respectively each set PHB and distributes a type codes, and described PHB is corresponding one by one with type codes; Every the set time period, this method may further comprise the steps:
Each PHB among the corresponding set PHB of source end maintaining end point MEP generates the packet loss monitoring LM request message of a current slot, and the type codes of PHB is added in the LM request message of current slot of described PHB correspondence, is sent to place end MEP; The source end that the LM request message of described current slot the carries current slot number of giving out a contract for a project;
After place end MEP receives the LM request message of current slot, the source end that takes out the entrained current slot of the LM request message of the described current slot number of giving out a contract for a project, and the give out a contract for a project Su Duanjiebao number of number, current slot of the Su Duan that detects current slot; With the source end of described current slot give out a contract for a project the Su Duan of number, Su Duanjiebao number pairing back and current slot give out a contract for a project number together encapsulation form the LM response message; The type codes of the LM request message of described current slot is copied in the described LM response message, form the LM response message of the pairing current slot of LM request message of described current slot, be sent to source end MEP;
Source end MEP receives the LM response message of current slot; The LM response message of described current slot is generated by end MEP place, place end, and is corresponding one by one with the LM request message of described current slot;
Source end MEP discerns the LM response message of the pairing described current slot of each PHB, and, calculate far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the current slot of each PHB correspondence and the LM response message of previous time period; Described identifying operation is specially: source end MEP finds the LM response message of the type codes described current slot identical with the type codes of PHB, and the LM response message of described current slot is the LM response message of the pairing current slot of described PHB.
Further, the LM response message of described current slot according to each PHB correspondence and the LM response message of previous time period, the far-end packet loss and the near-end packet loss that calculate each PHB in the current slot respectively specifically comprise:
A, with the LM response message pairing of the source termination bag number of PHB current slot and this PHB current slot; The source end that the LM response message that extracts the current slot of this PHB correspondence carries the current slot of this PHB Su Duan of the Su Duanjiebao number of number, current slot and the current slot number of giving out a contract for a project of giving out a contract for a project; The source end of previous time period that the LM response message that extracts the previous time period of this PHB correspondence carries this PHB Su Duanjiebao number of number, previous time period and the Su Duan of the previous time period number of giving out a contract for a project of giving out a contract for a project, and extract the source termination bag number of the previous time period of this PHB correspondence;
B, the source end that calculates this PHB current slot number and the source ends of previous time period of this PHB several poor H1 that gives out a contract for a project that gives out a contract for a project, calculate the Su Duanjiebao number of this PHB current slot and the poor H2 of the Su Duanjiebao number of previous time period of this PHB, divided by H1, the merchant of gained is the near-end packet loss of this PHB at current slot by the difference of H1 and H2; The Su Duan that calculates this PHB current slot Su Duan of number and previous time period of this PHB several poor h1 that gives out a contract for a project that gives out a contract for a project, calculate the source termination bag number of this PHB current slot and the poor h2 of the source termination bag number of previous time period of this PHB, divided by h1, the merchant of gained is the far-end packet loss of this PHB at current slot by the difference of h1 and h2;
The computational process of C, repeating step A～B near-end packet loss and far-end packet loss is up to near-end packet loss and the far-end packet loss of the PHB that calculates each required monitoring at current slot.
It is a kind of based on the device that whenever slips a line to monitoring frame loss rate that the present invention also provides, and this device comprises:
Module is set, is used to be provided with the time period, it is the PHB of PHB as the needs monitoring that one or more whenever slipping a line is set, and is respectively type codes of each set PHB distribution, and described PHB is corresponding one by one with type codes;
The message generation module, each PHB that is used for corresponding set PHB generates the packet loss monitoring LM request message of a current slot, and the type codes of PHB is added in the LM request message of current slot of described PHB correspondence, be sent to place end MEP; The source end that the LM request message of described current slot the carries current slot number of giving out a contract for a project;
Identification module is used to receive the place end MEP LM response message of the current slot that generated of the LM request message of corresponding each described current slot respectively, and is used to discern the LM response message of the pairing described current slot of each PHB; Wherein, the LM response message that the LM request message of corresponding each the described current slot of place end MEP generates current slot is specially: after place end MEP receives the LM request message of current slot, the source end that takes out the entrained current slot of the LM request message of the described current slot number of giving out a contract for a project, and the give out a contract for a project Su Duanjiebao number of number, current slot of the Su Duan that detects current slot; With the source end of described current slot give out a contract for a project the Su Duan of number, Su Duanjiebao number pairing back and current slot give out a contract for a project number together encapsulation form the LM response message; The type codes of the LM request message of described current slot is copied in the described LM response message, form the LM response message of the pairing current slot of LM request message of described current slot, be sent to source end MEP;
Described identifying operation is specially: identification module finds the LM response message of the type codes described current slot identical with the type codes of PHB, and the LM response message of described current slot is the LM response message of the pairing current slot of described PHB;
Computing module is used for calculating far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the described current slot of each PHB correspondence and the LM response message of previous time period.
Digital signature method and device based on simple object access protocol message provided by the present invention have following advantage and characteristics:
Be the PHB of PHB by one or more whenever slipping a line is set, and calculate near-end packet loss and the far-end packet loss of each described PHB respectively, realized the function of the message transport process packet loss of the business of a plurality of different PHB on the monitoring link as the needs monitoring.
Description of drawings
Fig. 1 the present invention is based on the realization flow figure that whenever slips a line to the method for monitoring frame loss rate;
Fig. 2 the present invention is based on the structural representation that whenever slips a line to the device of monitoring frame loss rate.
Embodiment
The present invention is based on whenever slip a line into the realization flow of the method for monitoring frame loss rate as shown in Figure 1, this method may further comprise the steps:
Step 101: the time period is set, the PHB of one or more PHB as the needs monitoring is set; And being respectively type codes of each set PHB distribution, described PHB is corresponding one by one with type codes.
Every the set time period, execution in step 102～104.
Step 102: each PHB among the corresponding set PHB of source end maintaining end point (MEP) generates the LM request message of a current slot, and with the type codes of PHB, is added in the LM request message of current slot of this PHB correspondence, is sent to place end MEP; The source end that the LM request message of described current slot the carries current slot number of giving out a contract for a project, the source end of described current slot is given out a contract for a project number when pointing to current slot and finishing, and the source end is sent belongs to quantity with the bag of the pairing PHB of LM request message of this current time period.
Step 103: source end MEP receives the LM response message of current slot; The LM response message of described current slot is generated by end MEP place, place end, and is corresponding one by one with the LM request message of described current slot; In any described current slot, PHB is corresponding one by one with the LM request message of current slot, and the LM request message of current slot is corresponding one by one with the LM response message of current slot;
The LM response message that place end MEP generates the pairing current slot of LM request message of a described current slot specifically comprises:
A, the source end that takes out the entrained current slot of the LM request message of the described current slot number of giving out a contract for a project,
The give out a contract for a project Su Duanjiebao number of number, current slot of the Su Duan that b, place end MEP detect current slot,
C, with the source end of described current slot give out a contract for a project the Su Duan of the Su Duanjiebao number pairing back of number, current slot and current slot give out a contract for a project number together encapsulation form the LM response message,
D, the style number of the LM request message of described current slot is copied in the described LM response message, form the LM response message of the pairing current slot of LM request message of described current slot;
The Su Duan of described current slot gives out a contract for a project number when pointing to current slot and finishing, and the place end is sent belongs to quantity with the bag of the pairing PHB of the corresponding message of LM of this current time period; The Su Duanjiebao number of described current slot points to current slot when finishing, and the place end is received belongs to quantity with the bag of the pairing PHB of the corresponding message of LM of this current time period.
Step 104: source end MEP discerns the LM response message of the pairing described current slot of each PHB, and, calculate far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the current slot of each PHB correspondence and the LM response message of previous time period.
The LM response message of the pairing described current slot of each PHB of described identification specifically comprises: source end MEP finds the LM response message of the style number described current slot identical with the style number of PHB, and the LM response message of this current time period is the LM response message of the pairing current slot of this PHB.
Far-end packet loss and the near-end packet loss of each PHB specifically comprise in the described calculating current slot:
A, with the LM response message pairing of the source termination bag number of PHB current slot and this PHB current slot; The source end that the LM response message that extracts the current slot of this PHB correspondence carries the current slot of this PHB Su Duan of the Su Duanjiebao number of number, current slot and the current slot number of giving out a contract for a project of giving out a contract for a project; The source end of previous time period that carries this PHB by the LM response message of the previous time period that extracts this PHB correspondence in the memory Su Duanjiebao number of number, previous time period and the Su Duan of the previous time period number of giving out a contract for a project of giving out a contract for a project, and by the source termination bag number of the previous time period that extracts this PHB correspondence in the described memory; The source termination bag number of described current slot points to current slot when finishing, and the source end is received belongs to quantity with the bag of the pairing PHB of the corresponding message of LM of this current time period.
B, the source end that calculates this PHB current slot number and the source ends of previous time period of this PHB several poor H1 that gives out a contract for a project that gives out a contract for a project, calculate the Su Duanjiebao number of this PHB current slot and the poor H2 of the Su Duanjiebao number of previous time period of this PHB, divided by H1, the merchant of gained is the near-end packet loss of this PHB at current slot by the difference of H1 and H2; The Su Duan that calculates this PHB current slot Su Duan of number and previous time period of this PHB several poor h1 that gives out a contract for a project that gives out a contract for a project, calculate the source termination bag number of this PHB current slot and the poor h2 of the source termination bag number of previous time period of this PHB, divided by h1, the merchant of gained is the far-end packet loss of this PHB at current slot by the difference of h1 and h2;
C, with the source termination bag number of this PHB current slot, and the LM response message of the current slot of this PHB correspondence, replace the source termination bag number of the previous time period of this PHB correspondence of current storage in the described memory, and the LM response message of the previous time period of this PHB correspondence, as the source termination bag number of previous time period of this PHB correspondence, and the LM response message of the previous time period of this PHB correspondence;
The computational process of D, repeating step A～C near-end packet loss and far-end packet loss is up to near-end packet loss and the far-end packet loss of the PHB that calculates each required monitoring at current slot.
The present invention is the PHB of PHB as the needs monitoring by one or more whenever slipping a line is set, and calculates near-end packet loss and the far-end packet loss of each described PHB respectively, has realized the function of the message transport process packet loss of a plurality of different PHB on the monitoring link.
The present invention is based on whenever slip a line into the structure of the device of monitoring frame loss rate as shown in Figure 2, this device comprises:
Module is set, is used to be provided with the time period, one or more whenever slipping a line is set is the PHB of PHB as the needs monitoring.
The message generation module, each PHB that is used for corresponding set PHB generates the LM request message of a current slot, and is sent to place end MEP;
Identification module, be used to receive the place end MEP LM response message of the current slot that generated of the LM request message of corresponding each described current slot respectively, and be used to discern the LM response message of the pairing described current slot of each PHB, recognition result is sent to computing module;
Computing module is used for calculating far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the described current slot of each PHB correspondence and the LM response message of previous time period.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (3)
1. one kind based on the method for whenever slipping a line to monitoring frame loss rate, it is characterized in that, the time period is set, one or more whenever slipping a line is set is the PHB of PHB as the needs monitoring, and being respectively type codes of each set PHB distribution, described PHB is corresponding one by one with type codes; Every the set time period, this method may further comprise the steps:
Each PHB among the corresponding set PHB of source end maintaining end point MEP generates the packet loss monitoring LM request message of a current slot, and the type codes of PHB is added in the LM request message of current slot of described PHB correspondence, is sent to place end MEP; The source end that the LM request message of described current slot the carries current slot number of giving out a contract for a project;
After place end MEP receives the LM request message of current slot, the source end that takes out the entrained current slot of the LM request message of the described current slot number of giving out a contract for a project, and the give out a contract for a project Su Duanjiebao number of number, current slot of the Su Duan that detects current slot; With the source end of described current slot give out a contract for a project the Su Duan of number, Su Duanjiebao number pairing back and current slot give out a contract for a project number together encapsulation form the LM response message; The type codes of the LM request message of described current slot is copied in the described LM response message, form the LM response message of the pairing current slot of LM request message of described current slot, be sent to source end MEP;
Source end MEP receives the LM response message of current slot; The LM response message of described current slot is generated by end MEP place, place end, and is corresponding one by one with the LM request message of described current slot;
Source end MEP discerns the LM response message of the pairing described current slot of each PHB, and, calculate far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the current slot of each PHB correspondence and the LM response message of previous time period; Described identifying operation is specially: source end MEP finds the LM response message of the type codes described current slot identical with the type codes of PHB, and the LM response message of described current slot is the LM response message of the pairing current slot of described PHB.
2. described based on the method for whenever slipping a line to monitoring frame loss rate according to claim 1, it is characterized in that, the LM response message of described current slot according to each PHB correspondence and the LM response message of previous time period, the far-end packet loss and the near-end packet loss that calculate each PHB in the current slot respectively specifically comprise:
A, with the LM response message pairing of the source termination bag number of PHB current slot and this PHB current slot; The source end that the LM response message that extracts the current slot of this PHB correspondence carries the current slot of this PHB Su Duan of the Su Duanjiebao number of number, current slot and the current slot number of giving out a contract for a project of giving out a contract for a project; The source end of previous time period that the LM response message that extracts the previous time period of this PHB correspondence carries this PHB Su Duanjiebao number of number, previous time period and the Su Duan of the previous time period number of giving out a contract for a project of giving out a contract for a project, and extract the source termination bag number of the previous time period of this PHB correspondence;
B, the source end that calculates this PHB current slot number and the source ends of previous time period of this PHB several poor H1 that gives out a contract for a project that gives out a contract for a project, calculate the Su Duanjiebao number of this PHB current slot and the poor H2 of the Su Duanjiebao number of previous time period of this PHB, divided by H1, the merchant of gained is the near-end packet loss of this PHB at current slot by the difference of H1 and H2; The Su Duan that calculates this PHB current slot Su Duan of number and previous time period of this PHB several poor h1 that gives out a contract for a project that gives out a contract for a project, calculate the source termination bag number of this PHB current slot and the poor h2 of the source termination bag number of previous time period of this PHB, divided by h1, the merchant of gained is the far-end packet loss of this PHB at current slot by the difference of h1 and h2;
The computational process of C, repeating step A～B near-end packet loss and far-end packet loss is up to near-end packet loss and the far-end packet loss of the PHB that calculates each required monitoring at current slot.
3. one kind based on the device that whenever slips a line to monitoring frame loss rate, it is characterized in that this device comprises:
Module is set, is used to be provided with the time period, it is the PHB of PHB as the needs monitoring that one or more whenever slipping a line is set, and is respectively type codes of each set PHB distribution, and described PHB is corresponding one by one with type codes;
The message generation module, each PHB that is used for corresponding set PHB generates the packet loss monitoring LM request message of a current slot, and the type codes of PHB is added in the LM request message of current slot of described PHB correspondence, be sent to place end MEP; The source end that the LM request message of described current slot the carries current slot number of giving out a contract for a project;
Identification module is used to receive the place end MEP LM response message of the current slot that generated of the LM request message of corresponding each described current slot respectively, and is used to discern the LM response message of the pairing described current slot of each PHB; Wherein, the LM response message that the LM request message of corresponding each the described current slot of place end MEP generates current slot is specially: after place end MEP receives the LM request message of current slot, the source end that takes out the entrained current slot of the LM request message of the described current slot number of giving out a contract for a project, and the give out a contract for a project Su Duanjiebao number of number, current slot of the Su Duan that detects current slot; With the source end of described current slot give out a contract for a project the Su Duan of number, Su Duanjiebao number pairing back and current slot give out a contract for a project number together encapsulation form the LM response message; The type codes of the LM request message of described current slot is copied in the described LM response message, form the LM response message of the pairing current slot of LM request message of described current slot, be sent to source end MEP;
Described identifying operation is specially: identification module finds the LM response message of the type codes described current slot identical with the type codes of PHB, and the LM response message of described current slot is the LM response message of the pairing current slot of described PHB;
Computing module is used for calculating far-end packet loss and the near-end packet loss of each PHB in the current slot respectively according to the LM response message of the described current slot of each PHB correspondence and the LM response message of previous time period.
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| CN102857385B (en) * | 2011-06-30 | 2018-01-16 | 中兴通讯股份有限公司 | Packet loss detection method and system in a kind of Packet Transport Network |
| CN102780640B (en) * | 2012-08-17 | 2014-12-10 | 盛科网络（苏州）有限公司 | Method and device for realizing multilayer LM (loss measurement) in switching chip |
| CN104917641B (en) * | 2014-03-11 | 2019-06-25 | 中国电信股份有限公司 | It is a kind of for testing the method, test equipment and system of packet loss |
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| US6798757B2 (en) * | 2001-01-11 | 2004-09-28 | Hitachi, Ltd. | Establishing a route with a level of quality of service in a mobile network |
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| CN1881908A (en) * | 2005-06-13 | 2006-12-20 | 华为技术有限公司 | Method for measuring MPLS network performance parameter |
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