CN102224709A - Method and apparatus of monitoring on ip bearing net performance - Google Patents
Method and apparatus of monitoring on ip bearing net performance Download PDFInfo
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- CN102224709A CN102224709A CN2011800003127A CN201180000312A CN102224709A CN 102224709 A CN102224709 A CN 102224709A CN 2011800003127 A CN2011800003127 A CN 2011800003127A CN 201180000312 A CN201180000312 A CN 201180000312A CN 102224709 A CN102224709 A CN 102224709A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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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
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
- H04L43/106—Active monitoring, e.g. heartbeat, ping or trace-route using time related information in packets, e.g. by adding timestamps
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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
- H04L43/0852—Delays
- H04L43/0858—One way delays
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Abstract
The invention discloses a method and an apparatus for monitoring on IP bearing net performance, relating to the communications technology field and increasing veracity of monitoring on the performance and the breakdown of the IP bearing net which employs the MPLS technology. According to the scheme provided by the embodiment of the invention, the service message carries source tag which is used as an unique identification of the the source PE and the source PE sends OAM frame to the goal PE, through the number of the service message sent by source PE in a predetermined time slot to goal PE. The scheme provided by the embodiment of the invention is suitable for being used during the performance monitoring on the IP bearing net.
Description
Technical field
The present invention relates to the communication network technology field, relate in particular to the method and apparatus of IP bearer network performance monitoring.
Background technology
IP (Internet Protocol, Internet protocol) is to interconnect between the network, the agreement of mutual communication, and the IP bearer network is to be made of the IP subnet that interconnects by routing device.
MPLS (Multiple Protocol Label Switching, multiprotocol label switching) is the key technology of IP bearer network, adopt the MPLS technology, by LDP (Label Distributed Protocol, tag distribution protocol) LSP (the Label Switch Path of Jian Liing, label switched path) in, direction along the service message transmission, adjacent node is respectively upstream node and downstream node, downstream node is divided FEC (Forwarding Equivalence Class according to destination address, forwarding equivalence class), described FEC can be according to source address, destination address, source port, destination interface, protocol type, the combination in any of VPN etc. is divided.For example, in traditional employing during the IP of long matching algorithm transmits, be exactly a FEC to all messages of same destination address.When downstream node distributed identical forwarding label at same FEC upstream nodes, service message can arrive purpose PE (Provider Edge, edge device) fast according to forwarding label.Active PE on a LDP LSP for example, purpose PE and intermediate equipment P1, P2, P3, P4, when downstream node P4 at same FEC upstream nodes P1, when P2 distributes identical forwarding label, the forwarding label that the P1 node distributes this locality is pressed in the MPLS label stack, suppose that this forwarding label indication is forwarded to the P3 node with service message, the service message that then at first carries forwarding label jumps to next according to forwarding label and jumps the P2 node, the P2 node is pressed into the forwarding label of this locality distribution in the MPLS label stack more then, the service message that carries forwarding label jumps to next again according to forwarding label and jumps the P3 node, promptly finish forwarding work, receive service message according to forwarding label P3 node.
Yet, when the IP bearer network that adopts the MPLS technology is carried out performance monitoring, on a LDP LSP, when the downstream node at same FEC, when upstream nodes is distributed identical forwarding label, which cause on the downstream node of a LDP LSP, can't coming from concrete upstream node according to MPLS tag recognition service message, promptly according to forwarding label when downstream node P3 receives service message, can not come from the P1 node or come from the P2 node by the identification services message, it is lower to cause carrying out the performance fault monitoring accuracy at the IP bearer network.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus of IP bearer network performance monitoring, have improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
One embodiment of the present of invention comprise a kind of method of IP bearer network performance monitoring, and described method comprises:
Determine the number of the service message that source provider edge equipment PE sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Described source PE to described purpose PE transmit operation, administer and maintain the OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
One embodiment of the present of invention comprise a kind of method of IP bearer network performance monitoring, and described method comprises:
Receive service message, described service message carries the source label that is used for unique identification source PE;
Determine the number of the described service message that carries described source label that purpose PE receives in the preset time section;
Receive the OAM frame and determine to receive time of described OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
The number and the number of the described service message that carries described source label that described purpose PE receives in the preset time section of the described service message that in described preset time section, sends according to the described source PE that carries in the described OAM frame to described purpose PE, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
Send the transmitting time of described OAM frame according to the described source PE that carries in time that receives described OAM frame and the described OAM frame, determine to send to the time delay of the described service message of described purpose PE from described source PE.
One embodiment of the present of invention comprise a kind of equipment of IP bearer network performance monitoring, and described equipment is physical equipment, preferably, are switch or router, and described equipment comprises:
Determining unit, the number of the service message that is used for determining that source provider edge equipment PE sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Transmitting element, be used for to described purpose PE transmit operation, administer and maintain the OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
One embodiment of the present of invention comprise a kind of equipment of IP bearer network performance monitoring, and described equipment is physical equipment, preferably, are switch or router, and described equipment comprises:
Receiving element is used to receive service message, and described service message carries the source label that is used for unique identification source PE;
First determining unit, the number of the described service message that carries described source label that is used for determining that purpose PE receives in the preset time section;
Second determining unit, the time that is used to receive the OAM frame and determines to receive described OAM frame, described OAM frame carries the number of the described service message that the described source PE of the source label that is used for the described source PE of unique identification sends to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
First performance element, the number of the described service message that the described source PE that is used for carrying according to described OAM frame sends to described purpose PE in described preset time section and the number of the described service message that carries described source label that described purpose PE receives in the preset time section, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
Second performance element is used for sending the transmitting time of described OAM frame, definite time delay that sends to the described service message of described purpose PE from described source PE according to receiving the time of described OAM frame and described source PE that described OAM frame carries.
The method and apparatus of the IP bearer network performance monitoring that the embodiment of the invention provides, by in the preset time section, determine the number of source PE to the service message of purpose PE transmission, and the OAM frame sent to described purpose PE, described OAM frame has carried the number of the service message that the source label that is used for the described source PE of unique identification, the introversive described purpose PE of the described preset time section of described source PE send and the time that described source PE sends described OAM frame.Pass through said method, after the embodiment of the invention can make described purpose PE receive service message and OAM frame, determine the number of dropped packets of described service message and the time delay of described service message by the number of determining the service message that carries described source label that purpose PE receives and the time that receives the OAM frame.With in the prior art owing to can not determine at purpose PE the service message that receives specifically by which source PE is sent, cause carrying out that the performance fault monitoring accuracy is low to be compared at the IP bearer network, the embodiment of the invention can make the equipment that receives service message determine the concrete source PE of the service message that receives, thereby has improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the method for a kind of IP bearer network performance monitoring that Fig. 1 provides for one embodiment of the invention;
The flow chart of the method for the alternative IP bearer network performance monitoring that Fig. 2 provides for one embodiment of the invention;
The block diagram of the equipment of a kind of IP bearer network performance monitoring that Fig. 3 provides for one embodiment of the invention;
The block diagram of the equipment of the alternative IP bearer network performance monitoring that Fig. 4 provides for one embodiment of the invention;
The flow chart of the method for the IP bearer network performance monitoring that Fig. 5 provides for one embodiment of the invention;
The block diagram of the equipment of a kind of IP bearer network performance monitoring that Fig. 6 provides for one embodiment of the invention;
The block diagram of the equipment of the alternative IP bearer network performance monitoring that Fig. 7 provides for one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1
Present embodiment provides a kind of method of IP bearer network performance monitoring, and as shown in Figure 1, this method comprises:
The executive agent of above steps can be source PE.
Pass through said method, after the embodiment of the invention can make described purpose PE receive service message and OAM frame, determine the number of dropped packets of described service message and the time delay of described service message by the number of determining the described service message that carries described source label that purpose PE receives and the time that receives the OAM frame.Therefore, the embodiment of the invention can make the equipment that receives service message determine the concrete source PE of the service message that receives, thereby has improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
Present embodiment provides the method for another kind of IP bearer network performance monitoring, and as shown in Figure 2, this method comprises:
The executive agent of above steps can be purpose PE.
The method of the IP bearer network performance monitoring that the embodiment of the invention provides, by the service message that sends at purpose PE reception sources PE, described service message carries the source label that is used for the described source PE of unique identification, determine the number of the described service message that carries described source label that purpose PE receives then and determine to receive time of OAM frame, determine at last described source PE send to described purpose PE described service message number of dropped packets and send the time delay of described service message.The performance fault monitoring accuracy is low to be compared with carrying out at the IP bearer network in the prior art, the scheme that the embodiment of the invention provides identifies source PE by adopting the source label, can determine the source of the service message that receives at purpose PE, the IP bearer network that has improved adopting the MPLS technology carries out the performance fault monitoring accuracy.
In order to realize the method for IP bearer network performance monitoring, the embodiment of the invention provides a kind of equipment of IP bearer network performance monitoring, this equipment can be source PE, described equipment is physical equipment, preferably, be switch or router, as shown in Figure 3, this equipment comprises: determining unit 301, transmitting element 302.
Determining unit 301, the number of the service message that is used for determining that the source edge device PE of operator sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Transmitting element 302, be used for to described purpose PE transmit operation, administer and maintain the OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
Pass through the said equipment, after the embodiment of the invention can make described purpose PE receive service message and OAM frame, determine the number of dropped packets of described service message and the time delay of described service message by the number of determining the described service message that carries described source label that purpose PE receives and the time that receives the OAM frame.Therefore, described equipment in the embodiment of the invention can provide the required information of source PE of determining described service message for the equipment that receives service message, make the equipment that receives described service message can determine to send the source device of described service message, thereby improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
The embodiment of the invention also provides the equipment of another kind of IP bearer network performance monitoring, this equipment can be purpose PE, described equipment is physical equipment, preferably, be switch or router, as shown in Figure 4, this equipment comprises: receiving element 401, first determining unit 402, second determining unit 403, first performance element 404, second performance element 405.
Receiving element 401 is used to receive service message, and described service message has carried and has been used for the source label that unique identification sends the source PE of described service message;
First determining unit 402, the number of the service message that carries described source label that is used for determining that purpose PE receives in the preset time section;
Second determining unit 403, the time that is used to receive the OAM frame and determines to receive described OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
First performance element 404, the number of the described service message that the described source PE that is used for carrying according to described OAM frame sends to described purpose PE in described preset time section and the number of the described service message that carries described source label that described purpose PE receives in the preset time section, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
Second performance element 405 is used for sending the transmitting time of described OAM frame, definite time delay that sends to the described service message of described purpose PE from described source PE according to receiving the time of described OAM frame and described source PE that described OAM frame carries.
The equipment of the IP bearer network performance monitoring that the embodiment of the invention provides, by the service message of receiving element in purpose PE reception sources PE transmission, described service message carries the source label that is used for the described source PE of unique identification, first determining unit is determined the number of the described service message that carries described source label that purpose PE receives and is received the OAM frame and determined that the time that receives described OAM frame determines that by first performance element described source PE sends to the number of dropped packets of the described service message of described purpose PE at last by second determining unit then, and second performance element determines to send the time delay of described service message.With carry out at the IP bearer network in the prior art that the performance fault monitoring accuracy is low to be compared, the equipment that the embodiment of the invention provides has improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
Embodiment 2
Present embodiment provides a kind of method of IP bearer network performance monitoring, and as shown in Figure 5, this method comprises:
Step 500, source PE sends service message to purpose PE, and described service message has carried the source label that is used for the described source PE of unique identification;
Described source PE periodically sends described service message to described purpose PE.PE is an edge device, and as VPN (Virtual Private Network, Virtual Private Network) professional starting point or terminal point, described source PE is the starting point of described vpn service, and described purpose PE is the terminal point of described vpn service.
The source label that is used for the described source PE of unique identification that carries in the described service message is positioned at the LDP label of multiprotocol label switching MPLS label stack of described service message with arbitrary layer, described LDP label is positioned at the outermost layer of described MPLS label stack, preferably, the source label that is used for the described source PE of unique identification that carries in the described service message is at the LDP label of the described MPLS label stack of described service message and the arbitrary layer between the VPN label.
Step 501, described source PE determines the number of the described service message that described source PE sends to described purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Described preset time section can send the one-period of described service message for described source PE to described purpose PE.
Described source label is the extra one deck label that increases on the basis of existing MPLS label stack, described source label and each source PE are corresponding one by one, can source PE of unique identification, thereby make described purpose PE receive after the described service message, can determine which source PE the described described service message that receives specifically comes from by described source label.
Described source label can adopt following any distribution mechanism: described source label is distributed to described source PE by described purpose PE by control protocol; Perhaps,
Described source label is the static preset label; Perhaps,
Described source label is existing PW (pseudo-line) label that can identification sources PE.
Particularly, described source label is distributed to described source PE by described purpose PE by control protocol, be that described purpose PE distributes a label that differs from one another by control protocol other PE in the IP bearer network at described source PE and described purpose PE place, as the source label of the described source of sign PE identity.Described purpose PE need increase source label resource management module, differs from one another to guarantee the label of distributing to other PE in the IP bearer network.
Described source label is the static preset label, and described static preset label is by unique label in the IP bearer network at the described source PE of human configuration and described purpose PE place.Particularly, all PE in the described IP bearer network all in IP bearer network of separate configurations unique label as the source label of the identification sources PE identity mode by human configuration can be on PE with the order line configuration, by unified network management center's distribution.
Described source label is existing PW (pseudo-line) label that can identification sources PE, particularly, can adopt the PW label of layer 2 virtual private network L2VPN, described PW label of each PW distribution for each PE in the IP bearer network at described source PE and described purpose PE place, described source label and described PW label are carried out relatedly, described PW label can be used as the source label of sign described source PE identity again.
Step 502, described source PE sends the OAM frame to described purpose PE, and described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
Described OAM frame adopts No. 13 labels of reserving in the described MPLS label stack, particularly, described No. 13 labels are made up of tag head GAL and message body G-ACH two parts, and the source label that is used for the described source PE of unique identification that carries in the described OAM frame is positioned at the message body of described No. 13 labels.
Need to prove that described OAM frame is a kind of OAM frame message, or described OAM frame is encapsulated in a kind of OAM frame message that is mail to described purpose PE by described source PE.The scheme that the embodiment of the invention provides is to be that example describes with the process of transmitting of described service message in a preset time section, thereby, in a preset time section, described OAM frame sends to described purpose PE after described service message is sent completely.
Step 503, described purpose PE receives described service message, and described service message carries the source label that is used for the described source PE of unique identification;
The source label that is used for the described source PE of unique identification that carries in the described service message is positioned at the LDP label of described MPLS label stack of described service message with arbitrary layer, and described LDP label is positioned at the outermost layer of described MPLS label stack; Perhaps,
That carries in the described service message is used for the arbitrary layer of source label between the LDP label of the described MPLS label stack of described service message and VPN label that unique identification sends the source PE of described service message.
Step 504 is determined the number of the described service message that carries described source label that purpose PE receives in the preset time section;
Step 505, described purpose PE receives the OAM frame and determines to receive the time of described OAM frame, and described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
Described OAM frame adopts No. 13 labels of reserving in the described MPLS label stack, and particularly, described No. 13 labels are made up of tag head GAL and message body G-ACH two parts.Source label in the described OAM frame is arranged in the message body of described No. 13 labels.
Step 506, the number and the number of the described service message that carries described source label that described purpose PE receives in the preset time section of the described service message that described purpose PE sends to described purpose PE in described preset time section according to the described source PE that carries in the described OAM frame, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
When the described described source PE that gets access to when the number of dropped packets of described purpose PE is 0, between described source PE and described purpose PE packet loss does not take place promptly; When the described described source PE that gets access to the number of dropped packets of described purpose PE greater than 0 the time, i.e. packet loss between described source PE and described purpose PE.
Step 507, described purpose PE sends the transmitting time of described OAM frame, definite time delay that sends to the described service message of described purpose PE from described source PE according to the described source PE that carries in the time that receives described OAM frame and the described OAM frame.
Described definite time delay that sends to the described service message of described purpose PE from described source PE is under identical application scenarios, and different terminal uses judges whether the IP bearer network exists the immediate data foundation of performance fault.For example: when between the terminal use, carrying out speech business, the time delay of described service message that sends to described purpose PE as described source PE is during less than thresholding, conversation is smooth between the terminal use, described IP bearer network nonexistence energy failure problems is described, described thresholding is to be determined according to the demand of oneself by the terminal use; The time delay of described service message that sends to described purpose PE as described source PE is during greater than thresholding, and conversation can not be carried out smoothly between the terminal use, illustrates that there is the performance failure problems in described IP bearer network.
Need to prove, when being carried out the performance fault monitoring, the IP bearer network can also adopt external probe technique, the physical support of described external probe technique is a special etui equipment that is independent of the network equipment, hangs over source PE and the purpose PE two ends that need carry out performance monitoring.By source probe simulation actual services message, additional configurations artificial service message is given out a contract for a project, and described purpose PE receives the described artificial service message line correlation performance data statistics of going forward side by side., can realize by monitoring reception emulation message with to the statistics of correlated performance data at described purpose PE the network performance failure location.Yet in adopting external probe technique, the cost of external probe is than higher, external in addition probe is a simulation actual services message, carry out performance monitoring at artificial message, accuracy is not high, in the scheme that provides in embodiments of the present invention, adopts the OAM frame to carry out with road performance monitoring cost low, and be that real service message is monitored, test result is more accurate.
The method of the IP bearer network performance monitoring that the embodiment of the invention provides, by in the preset time section, service message and OAM frame being sent to purpose PE, described OAM frame has carried the source label that is used for unique identification source PE, the number of the described service message that described source PE sends to described purpose PE in described preset time section and the transmitting time that described source PE sends described OAM frame, after described purpose PE receives described service message and described OAM frame, number by determining the described service message that carries described source label that described purpose PE receives and the time that receives described OAM frame are determined from described source PE and send to the number of dropped packets of described service message of described purpose PE and the time delay of described service message, with can not determine at purpose PE which source PE the service message that receives specifically comes from the prior art, cause carrying out that the performance fault monitoring accuracy is low to be compared at the IP bearer network, the scheme that the embodiment of the invention provides is by monitoring real service message, the monitoring cost is low, and can determine at purpose PE which source PE the service message that receives specifically comes from, the IP bearer network that has improved adopting the MPLS technology carries out the performance fault monitoring accuracy.
Embodiment 3
One embodiment of the present of invention provide a kind of equipment of IP bearer network performance monitoring, and described equipment can be source PE, and described equipment is physical equipment, preferably, be switch or router, equipment as shown in Figure 6, this equipment comprises: determining unit 601, transmitting element 602.
Determining unit 601, the number of the service message that is used for determining that source provider edge equipment PE sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification.
The source label that is used for the described source PE of unique identification that carries in the described service message is positioned at the LDP label of MPLS label stack of described service message with arbitrary layer, and described LDP label is positioned at the outermost layer of described MPLS label stack; Perhaps, the source label that is used for the described source PE of unique identification that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the VPN label.Preferably, the source label that is used for the described source PE of unique identification that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the VPN label.
Described source label is the extra one deck label that increases on the basis of existing MPLS label stack, described source label and each source PE are corresponding one by one, can source PE of unique identification, thereby make described purpose PE receive after the described service message, can determine which source PE the described described service message that receives specifically comes from by the source label.
Described source label can adopt following any distribution mechanism: described source label is distributed to described source PE by described purpose PE by control protocol; Perhaps, described source label is the static preset label; Perhaps, described source label is existing PW (pseudo-line) label that can identification sources PE.
Particularly, described source label is distributed to described source PE by described purpose PE by control protocol, be that described purpose PE distributes a label that differs from one another by control protocol other PE in the IP bearer network at described source PE and described purpose PE place, as the source label of the described source of sign PE identity.Described purpose PE need increase source label resource management module, differs from one another to guarantee the label of distributing to other PE in the IP bearer network.
Described source label is the static preset label, and described default label is by unique label in the IP bearer network at the described source PE of human configuration and described purpose PE place.Particularly, all PE in the described IP bearer network are unique label in IP bearer network of separate configurations, as the source label of the described source of sign PE identity.Mode by human configuration can be to dispose, distributed by unified network management center with order line on PE.
Described source label is existing PW label that can identification sources PE, particularly, can adopt the PW label of layer 2 virtual private network L2VPN, PW label of each PW distribution for each PE in the IP bearer network at described source PE and described purpose PE place, source label and PW label are carried out relatedly, described PW label can be used as the source label of sign described source PE identity again.
Transmitting element 602, be used for sending the OAM frame to described purpose PE, described OAM frame has carried the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
Described OAM frame adopts No. 13 labels of reserving in the described MPLS label stack, the message body that the source label that is used for the described source PE of unique identification that carries in the described OAM frame is positioned at described No. 13 labels particularly, described No. 13 labels are made up of tag head GAL and message body G-ACH two parts.
Described OAM frame is a kind of OAM frame message, or described OAM frame is encapsulated in a kind of OAM frame message that is mail to described purpose PE by described source PE.In the scheme that the embodiment of the invention provides, in the preset time section, described OAM frame sends to described purpose PE after described service message is sent completely.
Embodiment 4
One embodiment of the present of invention provide the equipment of another kind of IP bearer network performance monitoring, this equipment can be purpose PE, described equipment is physical equipment, preferably, be switch or router, equipment as shown in Figure 7, this equipment comprises: receiving element 701, first determining unit 702, second determining unit 703, first performance element 704, second performance element 705.
Receiving element 701 is used to receive service message, and described service message carries the source label that is used for unique identification source PE.
The source label that is used for unique identification source PE that carries in the described service message is positioned at the LDP label of MPLS label stack of described service message with arbitrary layer; Perhaps, the source label that is used for unique identification source PE that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the VPN label, and described LDP label is positioned at the outermost layer of described MPLS label stack.Preferably, the source label that is used for unique identification source PE that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the VPN label.
First determining unit 702, the number of the described service message that carries described source label that is used for determining that purpose PE receives in the preset time section.
Second determining unit 703, the time that is used to receive the OAM frame and determines to receive described OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
Described OAM frame adopts No. 13 labels of reserving in the described MPLS label stack, and the source label in the described OAM frame is arranged in the message body of described No. 13 labels.Particularly, described No. 13 labels are made up of tag head GAL and message body G-ACH two parts.
When the described described source PE that gets access to when the number of dropped packets of described purpose PE is 0, between described source PE and described purpose PE packet loss does not take place promptly; When the described described source PE that gets access to the number of dropped packets of described purpose PE greater than 0 the time, i.e. packet loss between described source PE and described purpose PE.
The described time delay of obtaining that sends described service message from described source PE to described purpose PE is under identical application scenarios, and different terminal uses judges whether the IP bearer network exists the immediate data foundation of performance fault.
The equipment of the IP bearer network performance monitoring that the embodiment of the invention provides, by the service message of receiving element in purpose PE reception sources PE transmission, first determining unit is determined the service message that carries described source label that receives and the time of the OAM frame being determined by second determining unit to receive then, determine that by first performance element described source PE sends to the number of dropped packets of the described service message of described purpose PE at last, the time delay that second performance element obtains described service message is judged the performance of IP bearer network.The performance fault monitoring accuracy is low to be compared with carrying out at the IP bearer network in the prior art, the equipment that the embodiment of the invention provides is by monitoring real service message, the monitoring cost is low, and has improved the accuracy when the IP bearer network that adopts the MPLS technology carried out the performance fault monitoring.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (10)
1. the method for an IP bearer network performance monitoring is characterized in that, comprising:
Determine the number of the service message that source provider edge equipment PE sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Described source PE to described purpose PE transmit operation, administer and maintain the OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
2. the method for IP bearer network performance monitoring according to claim 1 is characterized in that,
Described source label is distributed to described source PE by described purpose PE by control protocol; Perhaps,
Described source label is the static preset label; Perhaps,
Described source label is existing pseudo-line PW label that can identification sources PE.
3. the method for IP bearer network performance monitoring according to claim 1, it is characterized in that the source label that is used for the described source PE of unique identification that carries in the described service message is positioned at the tag distribution protocol LDP label of multiprotocol label switching MPLS label stack of described service message with arbitrary layer; Perhaps,
The source label that is used for the described source PE of unique identification that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the virtual private network label.
4. the method for IP bearer network performance monitoring according to claim 1, it is characterized in that described OAM frame adopts the source label that is used for the described source PE of unique identification that carries in the described OAM frame of reserving in the multiprotocol label switching MPLS label stack of No. 13 labels to be positioned at the message body of described No. 13 labels.
5. the method for IP bearer network performance monitoring according to claim 1 is characterized in that, described OAM frame is a kind of OAM frame message, or described OAM frame is encapsulated in a kind of OAM frame message that is mail to described purpose PE by described source PE.
6. the method for an IP bearer network performance monitoring is characterized in that, comprising:
Receive service message, described service message carries the source label that is used for unique identification source PE;
Determine the number of the described service message that carries described source label that purpose PE receives in the preset time section;
Receive the OAM frame and determine to receive time of described OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
The number and the number of the described service message that carries described source label that described purpose PE receives in the preset time section of the described service message that in described preset time section, sends according to the described source PE that carries in the described OAM frame to described purpose PE, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
Send the transmitting time of described OAM frame according to the described source PE that carries in time that receives described OAM frame and the described OAM frame, determine to send to the time delay of the described service message of described purpose PE from described source PE.
7. the method for IP bearer network performance monitoring according to claim 6 is characterized in that, the source label that is used for the described source PE of unique identification that carries in the described service message is positioned at the LDP label of MPLS label stack of described service message with arbitrary layer; Perhaps,
The source label that is used for the described source PE of unique identification that carries in the described service message is at the LDP label of the MPLS of described service message label stack and the arbitrary layer between the VPN label.
8. the method for IP bearer network performance monitoring according to claim 6 is characterized in that, described OAM frame adopts No. 13 labels of reserving in the MPLS label stack, and the source label in the described OAM frame is arranged in the message body of described No. 13 labels.
9. the equipment of an IP bearer network performance monitoring is characterized in that, comprising:
Determining unit, the number of the service message that is used for determining that source provider edge equipment PE sends to purpose PE in the preset time section, described service message carries the source label that is used for the described source PE of unique identification;
Transmitting element, be used for to described purpose PE transmit operation, administer and maintain the OAM frame, described OAM frame carries the number of the described service message that the source label that is used for the described source PE of unique identification, described source PE send to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section.
10. the equipment of an IP bearer network performance monitoring is characterized in that, comprising:
Receiving element is used to receive service message, and described service message carries the source label that is used for unique identification source PE;
First determining unit, the number of the described service message that carries described source label that is used for determining that purpose PE receives in the preset time section;
Second determining unit, the time that is used to receive the OAM frame and determines to receive described OAM frame, described OAM frame carries the number of the described service message that the described source PE of the source label that is used for the described source PE of unique identification sends to described purpose PE and the transmitting time that described source PE sends described OAM frame in described preset time section;
First performance element, the number of the described service message that the described source PE that is used for carrying according to described OAM frame sends to described purpose PE in described preset time section and the number of the described service message that carries described source label that described purpose PE receives in the preset time section, definite number of dropped packets that sends to the described service message of described purpose PE from described source PE;
Second performance element is used for sending the transmitting time of described OAM frame, definite time delay that sends to the described service message of described purpose PE from described source PE according to receiving the time of described OAM frame and described source PE that described OAM frame carries.
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| PCT/CN2011/073057 WO2012142753A1 (en) | 2011-04-20 | 2011-04-20 | Method and device for monitoring ip bearer network performance |
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| WO (1) | WO2012142753A1 (en) |
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