CN107104898A - Method, equipment and the system of message transmissions - Google Patents
Method, equipment and the system of message transmissions Download PDFInfo
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- CN107104898A CN107104898A CN201610098436.8A CN201610098436A CN107104898A CN 107104898 A CN107104898 A CN 107104898A CN 201610098436 A CN201610098436 A CN 201610098436A CN 107104898 A CN107104898 A CN 107104898A
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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
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/31—Flow control; Congestion control by tagging of packets, e.g. using discard eligibility [DE] bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to wireless communication technology field, more particularly to a kind of method of message transmissions, equipment and system, to solve present in prior art when Packet reassembling is not supported in base station, the problem of the packet loss easily caused, wherein this method includes：IngressPE nodes receive the former message that the first equipment is sent to the second equipment, it is determined that after MTU of the length more than transmission path of former message, to former message fragment, obtaining the carrying mark at least two fragment messages, each fragment message；Fragment message is sent to the second equipment by egressPE nodes.In this technical scheme, marked because each fragment message is carried, so that egressPE nodes can recognize that the message is the message after ingressPE node bursts, then so that egressPE nodes are recombinated to the message, it is to avoid the second equipment because can not reconstructed file and caused by packet loss.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of method of message transmissions, equipment and it is
System.
Background technology
In the prior art, (Internet Protocol Radio Access Network, IPization wirelessly connects IPRAN
Network) networking mode as shown in figure 1, including base station, MPLS (Multi-Protocol Label Switching,
Multiprotocol label switching) network and core net.Wherein, base station is entered by MPLS network with core net
Row communication.MPLS network can include equipment 100, equipment 110 and equipment 120.Specifically, base station with
Equipment 100 communicates, and core net communicates with equipment 110.Wherein equipment 100, equipment 110 are PE (Provider
Edge, Provider Edge) node, equipment 120 is the intermediate node in MPLS network, also known as P
(Provider, operator) node.When data are sent to core net by base station, equipment 100 is ingressPE
(ingress Provider Edge, entrance Provider Edge) node, equipment 110 is egressPE (egress
Provider Edge, outlet operator edge) node, when data are sent to base station by core net, equipment
110 be ingressPE nodes, and equipment 100 is egressPE nodes.
Because the communication network based on IPRAN is not only able to carry wireless speech business, and number can be carried
According to business, wherein wireless speech service message is used to transmit wireless voice data, is small messages, normal conditions
Under, the transmission unit of wireless speech service message is not over 1500 bytes, and data service message is used to pass
Transmission of data business, is big message, it is generally the case that the transmission unit of the data service message is more than 1500 words
Section.
Make it that big message can be transmitted in MPLS network, sent out with core net by MPLS network to base station
Exemplified by sending big message, when core net sends what equipment present in the transmission path of big message was supported to base station
MTU (Maximum Transmission Unit, MTU) is less than the length of the big message of transmission
When, ingressPE nodes carry out burst to the big message, and the message after burst is sent into base station.However,
When Packet reassembling is not supported in base station, base station will directly may be received after the message after receiving burst
Burst after message packet loss, cause business not run normally.
The content of the invention
The present invention provides a kind of method of message transmissions, equipment and system, to solve to exist in the prior art
When Packet reassembling is not supported in base station, after the message after receiving burst, will directly may receive
Message packet loss after burst, causes the problem of business can not normally be run.
First aspect includes there is provided a kind of method of message transmissions, this method：
Entrance Provider Edge ingressPE nodes receive the former message that the first equipment is sent to the second equipment, institute
State the first equipment and second equipment is communicated by multiprotocol label switching MPLS network, it is described
IngressPE nodes are to connect the node of first equipment in the MPLS network；It is determined that the former report
The length of text is more than after the MTU MTU of transmission path, to the former message fragment, obtains at least
Two length are not more than in the MTU of transmission path fragment message, at least two fragment message
Each fragment message carries mark, described to mark for identifying the fragment message for the ingressPE nodes
Message after burst；At least two fragment message is sent out by outlet operator edge egressPE nodes
Give second equipment, the egressPE nodes are to connect second equipment in the MPLS network
Node.
With reference in a first aspect, optional, the MTU of the transmission path is described in the MPLS network
The MTU supported in node between ingressPE nodes and the egressPE nodes for transmitting former message
Middle minimum MTU.
With reference in a first aspect, optional, this method also includes：The ingressPE nodes are if it is determined that the original
The length of message is not more than the MTU of the transmission path, then saves the former message by the egressPE
Point is sent to second equipment.
With reference in a first aspect, optionally, the mark is carried in the heading of the fragment message.
With reference in a first aspect, optional, if the former message is IP messages, the heading of the fragment message
In Flags fields and/or service type tos field include the mark.
With reference in a first aspect, optional, the fragment message carries burst configured information, and the burst is indicated
Information includes being used to indicate that the information of the former message of the fragment message ownership, the fragment message to be relative
In the piece offset of the former message and for indicating whether the fragment message is that the former message fragment is obtained
The information of last fragment message arrived.
With reference in a first aspect, optionally, the burst configured information is carried in the load of the fragment message.
Second aspect includes there is provided a kind of method of message transmissions, this method：
Outlet operator edge egressPE nodes receive the report from entrance Provider Edge ingressPE nodes
Text, the ingressPE nodes are to connect the node of the first equipment in multiprotocol label switching MPLS network,
The egressPE nodes are that the node of the second equipment is connected in the MPLS network, first equipment with
Second equipment is communicated by the MPLS network；It is determined that the message is carried after marking, according to institute
The burst configured information carried in message is stated, the position that the packet buffer is indicated to the burst configured information
Put, the position be the egressPE nodes in be used for Packet reassembling data space position,
The burst configured information includes being used to indicate that the information of the former message of the message ownership, the message to be relative
In the piece offset of the former message and for indicating that the whether described former message fragment of the message is obtained
The information of last message, the former message is the message that first equipment is sent to second equipment；
According to the burst configured information of all messages in the data space, it is determined that obtaining the former message；Will
The former message is sent to second equipment.
With reference to second aspect, optionally, this method also includes：The egressPE nodes are if it is determined that from institute
The message for stating ingressPE nodes does not carry the mark, then by the message from the ingressPE nodes
It is sent to second equipment.
With reference to second aspect, optionally, the egressPE nodes determine to take in the head field of the message
With the mark.
With reference to second aspect, optionally, if the message is IP messages, the egressPE nodes are determined
Flags fields and/or service type tos field in the head field of the message include the mark.
There is provided a kind of ingressPE node devices of message transmissions, the ingressPE nodes for the third aspect
Equipment includes：Receiving module, processing module, sending module, wherein：Receiving module, for receiving first
Equipment is sent to the former message of the second equipment, and first equipment and second equipment pass through multiprotocol label
Exchange MPLS network communication, the ingressPE node devices are to connect described the in the MPLS network
The equipment of one equipment；Processing module, for it is determined that the length of the former message is more than the maximum of transmission path
After transmission unit MTU, to the former message fragment, obtain at least two length and be not more than the transmission path
MTU fragment message, each fragment message at least two fragment message carries mark, described
It is the message after the equipment burst to mark for identifying the fragment message；Sending module, for by described in
At least two fragment messages are sent to second equipment by outlet operator edge egressPE node devices,
The egressPE node devices are to connect the equipment of second equipment in the MPLS network.
With reference to the third aspect, optionally, the MTU of the transmission path is described in the MPLS network
Propped up in node between ingressPE node devices and the egressPE node devices for transmitting former message
Minimum MTU in the MTU held.
With reference to the third aspect, optionally, the sending module is additionally operable to described in processing module determination
The length of former message is not more than after the MTU of the transmission path, and the former message is passed through into the egressPE
Node device is sent to second equipment.
With reference to the third aspect, optionally, the mark is carried in the heading of the fragment message.
With reference to the third aspect, optionally, if the former message is IP messages, the heading of the fragment message
In Flags fields and/or service type tos field include the mark.
With reference to the third aspect, optionally, the fragment message carries burst configured information, and the burst is indicated
Information includes being used to indicate that the information of the former message of the fragment message ownership, the fragment message to be relative
In the piece offset of the former message and for indicating whether the fragment message is that the former message fragment is obtained
The information of last fragment message arrived.
With reference to the third aspect, optionally, the burst configured information is carried in the load of the fragment message.
Fourth aspect is set there is provided a kind of egressPE node devices of message transmissions, the egressPE nodes
It is standby to include：Receiving module, processing module, sending module, wherein：Receiving module, for receive come from into
The message of mouth Provider Edge ingressPE node devices, the ingressPE node devices are multi-protocols mark
Label exchange the equipment that the first equipment is connected in MPLS network, and the egressPE node devices are the MPLS
The equipment that the second equipment is connected in network, first equipment passes through the MPLS nets with second equipment
Network communicates；Processing module, for it is determined that the message is carried after marking, according to what is carried in the message
On burst configured information, the position that the packet buffer is indicated to the burst configured information, the position
For the position for the data space for being used for Packet reassembling in the egressPE node devices, the burst refers to
Show that information includes being used to indicate the information of the former message of the message ownership, the message relative to the former report
Text piece offset and for indicate the message whether be the former message fragment obtain last report
The information of text, the former message is the message that first equipment is sent to second equipment；And according to institute
The burst configured information of all messages in data space is stated, it is determined that obtaining the former message；Sending module,
For the former message to be sent into second equipment.
With reference to fourth aspect, optionally, the sending module is additionally operable to determine to come from institute in the processing module
The message for stating ingressPE node devices does not carry the mark, will come from the ingressPE node devices
Message be sent to second equipment.
With reference to fourth aspect, optionally, the processing module, specifically for determining the head word in the message
The mark is carried in section.
With reference to fourth aspect, optionally, if the message is IP messages, the processing module specifically for：
It is determined that the Flags fields and/or service type tos field in the head field of the message include the mark.
There is provided a kind of system of message transmissions in terms of 5th, including it is provided in an embodiment of the present invention any
IngressPE node devices, and any egressPE node devices provided in an embodiment of the present invention.
Because in technical solution of the present invention, ingressPE nodes are sent to the message of the second equipment in the first equipment
Length be more than transmission path MTU when, to the message carry out burst, wherein, each burst after burst
Message carries mark, so that when egressPE nodes receive the message for carrying mark, can recognize
It is the message after ingressPE node bursts to go out the message, then cause egressPE nodes to receive by
Message after ingressPE node bursts recombinated, it is to avoid egressPE nodes are directly by ingressPE
Message after node burst is sent to the second equipment so that the second equipment because can not reconstructed file and caused by lose
Bag, the problem of causing the interruption of business.
Brief description of the drawings
Fig. 1 is the network architecture of IPRAN in the prior art；
Fig. 2 is the method flow schematic diagram of message transmissions of the embodiment of the present invention；
Fig. 3 sends a kind of transmission path of former message for the equipment of the core net of the embodiment of the present invention to base station
Schematic diagram；
Fig. 4 is message format schematic diagram of the embodiment of the present invention；
Fig. 5 a are IP heading form schematic diagrams；
Fig. 5 b are the form schematic diagram of tos field in IP headings；
Fig. 6 is the former message fragment schematic diagram of ingress of embodiment of the present invention nodes；
Fig. 7 is the schematic diagram of the ingressPE node devices of message transmissions of the embodiment of the present invention；
Fig. 8 is the schematic diagram of the hardware configuration of the ingressPE node devices of message transmissions of the embodiment of the present invention；
Fig. 9 is the schematic diagram of the egressPE node devices of message transmissions of the embodiment of the present invention；
Figure 10 is the schematic diagram of the hardware configuration of the egressPE node devices of message transmissions of the embodiment of the present invention；
Figure 11 is the system schematic of message transmissions of the embodiment of the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, with reference to Figure of description pair
The embodiment of the present invention is described in further detail.
Specifically, the embodiment of the present invention can apply in the network architecture as shown in Figure 1, below with Fig. 1
The embodiment of the present invention is described in detail exemplified by the shown network architecture.
It should be understood that when the first equipment of the embodiment of the present invention is the equipment of core net, the second equipment is base station；
When first equipment is base station, the second equipment is the equipment of core net；Wherein, the equipment of base station and core net it
Between communicated by MPLS network, when the first equipment be core net equipment when, ingressPE nodes are and core
Equipment 100 in the MPLS network of the equipment connection of heart net, egressPE nodes are what is be connected with base station
Equipment 110 in MPLS network；When the first equipment is base station, ingressPE nodes are what is be connected with base station
Equipment 110 in MPLS network, during egressPE nodes are the MPLS network that is connected with the equipment of core net
Equipment 100.
It should be understood that illustrate only a base station, the equipment of core net, an ingressPE section in Fig. 1
Point, egressPE node, the situation of P node, but the embodiment of the present invention is in practical application
Base station, the equipment of core net, ingressPE nodes, egressPE nodes, the number of P node in the network architecture
Amount is not limited to one.
It should be understood that the equipment of the core net can be base station controller.
Below using the first equipment as the equipment of core net, the second equipment is to the methods of message transmissions exemplified by base station
Illustrate, when the first equipment be base station when, when the second equipment is the equipment of core net with the first equipment be core
The equipment of heart net, the second equipment is similar for the method for the message transmissions of base station, will not be repeated here.
As shown in Fig. 2 the method for message transmissions of the embodiment of the present invention, including：
Step 200, the equipment of core net will need the former message for being sent to base station to be sent to ingressPE nodes.
Step 201, ingressPE nodes receive former message.
Step 202, ingressPE nodes judge whether the length of former message is more than the MTU of transmission path, if
It is then to perform step 203, otherwise performs step 204.
It should be noted that the MTU of transmission path is set in advance in ingressPE nodes, wherein when
It is all between ingressPE nodes and egressPE nodes to be used to transmit the MTU that the node of former message is supported
When identical, MTU can be set to the MTU supported of ingressPE nodes, or less than ingressPE
The MTU that node is supported.It is used to transmit original when all between ingressPE nodes and egressPE nodes
When the MTU that the node of message is supported is differed, the MTU of transmission path is set to ingressPE sections
It is minimum in the MTU that all nodes for transmitting former message are supported between point and egressPE nodes
MTU。
By taking Fig. 3 as an example, Fig. 3 sends the one of former message to base station for the equipment of the core net of the embodiment of the present invention
Transmission path is planted, is specially：340 → P of equipment 360 → ingressPE, 350 → P nodes of node of core net
310 → base station of node 330 → P node, 320 → egressPE nodes 300.As ingressPE nodes 350, P
The MTU that node 340, P node 330, P node 320, egressPE nodes 310 are supported is 2000
During byte, preferably the MTU of transmission path can be set to 2000 bytes, can also be by transmission path
MTU be set to 1800 bytes；The MTU supported when ingressPE nodes 350 is 2000 bytes,
The MTU that the MTU that P node 340 is supported is supported by 2500 bytes, P node 330 is 1500 words
The MTU that the MTU that section, P node 320 are supported is supported by 2300 bytes, egressPE nodes 310
Supported during for 3000 byte, in transmission path MTU it is minimum for 1500 bytes, then by transmission path
MTU is set to 1500 bytes or the value less than 1500 bytes, wherein, the MTU of transmission path is set
It is a kind of preferably scheme to be set to 1500 bytes.
Step 203, the former message fragment is obtained at least two and is not more than transmission path by ingressPE nodes
MTU fragment message, perform step 205.
By taking Fig. 3 transmission path as an example, it is assumed that the length of former message is 4500 bytes, the MTU of transmission path
For 2000 bytes, then ingressPE nodes are after former message is received, because the length of former message is 4500
Byte, more than the MTU (2000 byte) of transmission path, therefore directly can not be transmitted on the transmit path,
Need into the message less than 2000 bytes to transmit former message fragment on the transmit path, for example burst is former
Then to start burst with 2000 bytes, when burst is to no longer burst when being less than 2000 byte, then by original report
Text can be divided into 3 fragment messages, and its length is respectively 2000 bytes, 2000 bytes and 500 bytes；Its
Middle ingressPE burst principle can also start burst with 1500 bytes, be not more than transmission road as long as meeting
The MTU in footpath.
It should be noted that ingressPE nodes are sent at least the two of base station in the equipment for receiving core net
During individual former message, serial process can be carried out at least two former messages received, can also be to receiving
At least two former messages carry out parallel processings.Specifically, when ingressPE nodes to receive at least two
When individual former message carries out serial process, i.e., when carrying out burst to one of former message, another former message etc.
Stay in buffer queue, wait after a burst terminates, burst is judged whether to next progress；When
When ingressPE nodes carry out parallel processing to the former message received, i.e., at least two former messages are handled simultaneously,
Judge whether to need to carry out burst simultaneously.
Step 204, the former message is sent to egressPE nodes by ingressPE nodes, performs step 207.
Step 205, ingressPE nodes set mark and burst to indicate in obtained each fragment message
Information, it is the message after ingressPE node bursts that the mark, which is used to identify the fragment message, and the burst is indicated
Information include the information of former message that fragment message belongs to, fragment message relative to former message piece offset with
And for indicate fragment message whether be last fragment message that former message fragment is obtained information.
It should be noted that ingressPE nodes can be set while former message fragment in fragment message
Mark and burst configured information, can also be after fragment message be obtained, then in burst report by former message fragment
Mark and burst configured information are set in text, and Fig. 2 only to exist again after former message fragment is obtained into fragment message
Set and illustrated exemplified by mark and burst configured information in fragment message, wherein, ingressPE nodes can be with
Mark and burst configured information are set in fragment message simultaneously, mark can also be first set in fragment message,
Burst configured information is being set, burst configured information can also be first set in fragment message, mark is being set.
Specifically, being illustrated by taking the message schematic diagram shown in Fig. 4 as an example, message includes the load of message
(payload) and heading two parts, the load of message is the data for being actually needed transmission.
Wherein, the mark can be arranged in the load of message, can also be arranged in heading.
It is the form schematic diagram of IP headings as shown in Figure 5 a when the message is IP messages, wherein,
IP headings include following field：Version (version number), IHL (Internet Header Length, header
Length), ToS (Type of Service, service type), Total Length (total length), Identification
(mark), Flags (mark), Fragment Offset (piece offset), Time to Live (life span),
Protocol (protocol number), Header Checksum (header check and), Source Address (source address),
Destination Address (destination address), Options (option), Padding (filling).
Wherein, according to RFC1122 definition, IP precedence (IP Precedence) is used in tos field
0th bit as shown in Figure 5 b, uses the 0th bit to the 5th to the 2nd bit, and in RFC2474
Bit sets DSCP (Differentiated Services Codepoint, differentiated services code points), in RFC
In 3168 (The Addition of Explicit Congestion Notification (ECN) to IP), by ToS
The bit of reserved bit the 6th and the 7th bit definitions in field are：ECN(Explicit Congestion
Notification, explicit congestion notice), the congestion for indicating business.
From the point of view of practical application, the 3rd bit to the 7th bit in different specific networks in tos field
Use less, particularly the 6th bit and the 7th bit, therefore the 3rd bit that can be in tos field is extremely
At least one bit in 7th bit sets mark.In addition, the 0th bit in Flags fields also seldom makes
With therefore, it can by the 3rd bit in the 0th bit and/or tos field in Flags fields extremely
7th bit at least one bit setting mark, wherein, it is ingressPE nodes that the mark, which is used for identification message,
Message after burst.
For example the 0th bit in Flags fields is set and marked, after message is entry PE node burst
During obtained message, the 0th bit is set to 1, represents the message to obtain after ingressPE node bursts
Message, when the message obtained after the message is not ingressPE node bursts, ought the 0th bit set
For 0, it is not the obtained message after ingressPE node bursts to represent the message.In for Flags fields
During at least one bit in the 3rd to the 7th bit in the 0th bit or tos field, and in TOS domains
0th bit sets the mode of mark similar, will not be repeated here.
It should be noted that burst configured information can be arranged in the heading of fragment message, it can also set
Put in the load of fragment message.Specifically, when the equipment of core net is sent to the former report of ingressPE nodes
Text for core net equipment burst after message when, because the field in heading is all occupied, it is therefore necessary to
Burst configured information is carried by the load of message；
When the equipment of core net is sent to report of the former message of ingressPE nodes for the non-burst of equipment of core net
Wen Shi, can be returned by the Identification fields in heading to carry the fragment message in burst configured information
The information of the former message of category, burst configured information is carried by the 2nd bit in Flags fields in heading
In be used for indicate fragment message whether be last fragment message that former message fragment is obtained information, lead to
It is inclined relative to the piece of former message to carry the fragment message in burst configured information to cross Fragment Offset fields
Shifting amount；Burst configured information can also be carried by the load of message.
To simplify the implementation for carrying burst configured information, optionally, no matter under what circumstances, pass through
The load of message carries burst configured information.
When mark and burst configured information all by the load of message to carry when, wherein load in carry mark
Position from carry burst configured information position it is different.
Step 206, the fragment message for carrying mark and burst configured information is sent to by ingressPE nodes
EgressPE nodes.
It should be understood that ingressPE nodes can be sent the message after burst one by one by identical transmission path
Go out, or egressPE nodes are sent to by different transmission paths.
Step 207, egressPE nodes receive the message that ingressPE nodes are sent.
Wherein, when carrying mark in message, the report that the ingressPE nodes that egressPE nodes are received are sent
Text is the message after ingressPE node bursts, when not carrying mark in message, and egressPE nodes are received
The message that sends of ingressPE nodes be former message, after the former message can be for the equipment burst of core net
Message, or the message after the non-burst of equipment of core net.
Step 208, egressPE nodes judge whether there is mark in the message received, and the mark is used to identify this
Message is the message after ingressPE node bursts, if so, then performing step 209, otherwise performs step 212.
For example：The 0th bit in Flags fields is arranged on when the mark, when the 0th bit is set to 1,
It is the message after ingressPE node bursts for identifying the message, when the 0th bit is set to 0, is used for
It is not the message after ingressPE node bursts to identify the message, specifically, egressPE nodal tests Flags
Whether the 0th bit of field is 1, if 1 execution step 209, otherwise performs step 212.
When in the 3rd bit that the mark is arranged in TOS fields to the 7th bit and/or Flags fields
It is similar with above-mentioned situation during at least one bit in 0 bit, it will not be repeated here.
Step 209, egressPE nodes are according to the burst configured information carried in the message, by the packet buffer
To burst configured information indicate position on, wherein, the position be egressPE nodes in be used for Packet reassembling
Data space position.
It should be noted that the burst configured information be ingressPE nodes to the progress of the former message received
The burst configured information of burst.
To being specifically described on the position that indicates the packet buffer to burst configured information by taking Fig. 6 as an example,
The former burst of message 0 is obtained fragment message 1, fragment message 2, fragment message 3 by ingressPE nodes, wherein,
The burst configured information that fragment message 1 is carried includes：The former message of fragment message ownership is former message 0, burst
Message 1 is 0 and for indicating that fragment message 1 is not former message 0 relative to the piece offset of former message 0
The information for last fragment message that burst is obtained, it is assumed that the message that egressPE nodes are received is burst
Message 1, then egressPE nodes former reported according to what fragment message in the burst configured information of fragment message 1 belonged to
The information of Wen Weiyuan messages 0, the data space for recombinating former message 0 is cached to by fragment message 1
In, specifically it is stored in the position in data space and is reported according to fragment message 1 in burst configured information relative to original
The piece offset of text 0 is determined, because the piece offset of fragment message 1 is 0, is then stored in fragment message 1
The position started in data space for recombinating former message 0, wherein i.e. from data space
Location caches fragment message 1 for 0 position, because fragment message 1 is not last fragment message, then burst
Also there is fragment message after message 1.If the message that egressPE nodes are received is fragment message 2, it is assumed that point
Piece message 2 is 1024 bytes relative to the piece offset of former message 0, then from the number for recombinating former message 0
Start to cache fragment message 2 according to the position of 1024 bytes in memory space, when the message received is burst report
It is similar with above-mentioned cache way during text 3, it will not be repeated here.
Further, since egressPE nodes are possible to receive point obtained after the former message fragment for belonging to different
Piece message, the then information of the former message belonged to according to fragment message in burst configured information, respectively by burst report
Text is cached in data buffer storage space corresponding with former message, and such as egressPE nodes receive former message 1
Fragment message 0, the fragment message 1 of former message 2, then fragment message 0 is cached to for recombinating former message
In 1 data buffer storage space, fragment message 1 is cached in the data buffer storage space for recombinating former message 2.
Step 210, egressPE nodes are according to the burst configured informations of all messages in the data space,
It is determined that obtaining the former message, step 211 is then performed.
Specifically, by taking Fig. 6 as an example, when egressPE nodes determine the data storage sky for recombinating former message
Between include last fragment message 3, and during fragment message corresponding including all piece offsets, then
EgressPE nodes determine to complete the restructuring of fragment message, obtain former message, perform step 211.
If in addition, egressPE nodes are in default duration, the institute obtained after former message fragment is not received
There is fragment message, then egressPE nodes abandon all fragment messages in the data space.Abandoning
Afterwards, the message that egressPE nodes can also be abandoned to the equipment feedback fragment message of core net.
Step 211, the former message after restructuring is sent to base station by egressPE nodes.
Step 212, former message is sent to base station by egressPE nodes.
If because ingressPE nodes have carried out burst to message in embodiments of the present invention, to burst report
Text marking respectively, the message for marking the message to obtain after ingressPE node bursts, when egressPE sections
Whether point, when receiving the message, can be ingressPE node bursts according to the marker recognition to the message
Message afterwards, if the message be ingressPE node bursts after message, egressPE nodes can to by
Message after ingressPE node bursts is recombinated, therefore, is solved when message is excessive, MPLS network
In ingressPE nodes to message fragment after, base station or core net are transmitted directly to, for not supporting message
The equipment of equipment in the base station of restructuring or core net, base station or core net after the message after receiving burst,
Direct packet loss so that the problem of business can not normally be run.
Also, for supporting the base station of burst and restructuring, because egressPE nodes are receiving message
When, whether can be message after ingressPE node bursts, i.e. egressPE according to marker recognition to the message
Node is just for the Packet reassembling after ingressPE node bursts, when egressPE nodes receive core net
Equipment is sent after fragment message, these messages is not recombinated, so that base station can normally be run,
If egressPE nodes are recombinated to all fragment messages, message amount that base station receives is easily caused significantly
Degree is reduced so that base station is mistaken for a large amount of packet losses, so as to exit service state, is stopped.
Based on same inventive concept, a kind of ingressPE sections of message transmissions are additionally provided in the embodiment of the present invention
Point device, because the corresponding method of ingressPE node devices of message transmissions passes for message of the embodiment of the present invention
Defeated method, therefore the implementation of the ingressPE node devices of message transmissions of the embodiment of the present invention may refer to this
The implementation of method, repeats part and repeats no more.
As shown in fig. 7, the ingressPE node devices of message transmissions of the embodiment of the present invention, including receiving module
700th, processing module 701, sending module 702, wherein, receiving module 700 is used to receive the first equipment hair
The former message of the second equipment is given, the first equipment and the second equipment pass through multiprotocol label switching MPLS network
Communication, the ingressPE node devices are to connect the equipment of the first equipment in MPLS network；Processing module 701
For it is determined that after MTU MTU of the length more than transmission path of former message, dividing former message
Piece, obtains the fragment message that at least two length are not more than the MTU of transmission path, at least two fragment messages
In each fragment message carry mark, it is the message after equipment burst to mark for identifying fragment message；Hair
Module 702 is sent to be used to send out at least two fragment messages by outlet operator edge egressPE node devices
Give the second equipment, egressPE node devices are the equipment that the second equipment is connected in MPLS network.
Optionally, the MTU of transmission path be MPLS network between equipment and egressPE node devices
Minimum MTU in the MTU supported in node for transmitting former message.
Optionally, after processing module 701 determines that the length of former message is not more than the MTU of transmission path, hair
Module 702 is sent to be additionally operable to former message being sent to the second equipment by egressPE node devices.
Optionally, mark is carried in the heading of fragment message.
If former message is IP messages, optionally, Flags fields and/or service in the heading of fragment message
Type tos field includes mark.
Optionally, fragment message carries burst configured information, and burst configured information includes being used to indicate burst report
The information of former message of text ownership, fragment message are relative to the piece offset of former message and for indicating burst
Message whether be last fragment message that former message fragment is obtained information.
Optionally, burst configured information is carried in the load of fragment message.
It should be noted that being schematical to the division of module in the embodiment of the present invention, only one kind is patrolled
Collect function to divide, there can be other dividing mode when actually realizing, in addition, in each embodiment of the application
In each functional module can be integrated in a module or individually be physically present, can also be two
Or two or more module is integrated in a module.Above-mentioned integrated module both can be real using the form of hardware
It is existing, it would however also be possible to employ the form of software function module is realized.
Specifically, in the embodiment of the present invention, processing module 701 can be realized by processor, receiving module 700
There can be receiver realization, sending module 702 can be realized that wherein receiver and transmitter can by transmitter
With when hardware is realized it is integrated in a transceiver.
Fig. 8 for message transmissions ingressPE node devices hardware architecture diagram, including processor 810,
Transceiver 820 and memory 830.Wherein, memory 830 can be used for stored messages transmission equipment dispatch from the factory
When program/code for pre-installing, code when being performed for processor 810 etc. can also be stored.The ingressPE
Each component in node device is coupled by bus system 840, and wherein bus system 840 is except bag
Include outside data/address bus, in addition to power bus, controlling bus and status signal bus in addition.Wherein, processor
810 can use general central processing unit (Central Processing Unit, CPU), and microprocessor should
With application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or many
Individual integrated circuit, for performing associative operation, to realize technical scheme that the embodiment of the present invention is provided.
Although it should be noted that the ingressPE node devices shown in Fig. 8 illustrate only processor 810, transmitting-receiving
Device 820 and memory 830, but during implementing, it should be apparent to a person skilled in the art that should
IngressPE node devices are also comprising other devices necessary to realizing normal operation.Meanwhile, according to specific need
Will, it should be apparent to a person skilled in the art that the ingressPE node devices can also be added comprising other are realized
The hardware device of function.In addition, it should be apparent to a person skilled in the art that the ingressPE node devices
Can be only comprising device or module necessary to realizing the embodiment of the present invention, without comprising shown in Fig. 8
Whole devices.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized,
It can be by computer program to instruct the hardware of correlation to complete, above-mentioned program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, above-mentioned storage medium can be disk, CD, read-only memory (ROM：Read-Only
) or random access memory (RAM Memory：Random Access Memory) etc..
Based on same inventive concept, a kind of egressPE sections of message transmissions are additionally provided in the embodiment of the present invention
Point node device, because the corresponding method of egressPE node devices of message transmissions is report of the embodiment of the present invention
The method of text transmission, therefore the implementation of the egressPE node equipment of message transmissions of the embodiment of the present invention can
Repeated no more with referring to the implementation of this method, repeating part.
As shown in figure 9, the egressPE node devices of message transmissions of the embodiment of the present invention, including receiving module
900th, processing module 901, sending module 902, wherein, receiving module 900 is used to receive from entrance fortune
The message of business edge ingressPE node devices is sought, the ingressPE node devices are multiprotocol label switching
The equipment that the first equipment is connected in MPLS network, the egressPE node devices are connection in MPLS network
The equipment of second equipment, the first equipment is communicated with the second equipment by MPLS network；Processing module 901 is used
In after it is determined that message carries mark, according to the burst configured information carried in message, by packet buffer to dividing
Piece configured information indicate position on, position be equipment in be used for Packet reassembling data space position,
Burst configured information includes being used to indicate the piece of the information of the former message of message ownership, message relative to former message
Offset and for indicate message whether be last message that former message fragment is obtained information, original report
Text is sent to the message of the second equipment for the first equipment；And according to the burst of all messages in data space
Configured information, it is determined that obtaining former message；Sending module 902 is used to former message being sent to the second equipment.
Optionally, determine that the message from ingressPE node devices does not carry mark hair in processing module 901
Module 902 is sent to be additionally operable to the message from ingressPE node devices being sent to the second equipment.
Optionally, processing module 901, are marked specifically for determining to carry in the head field of message.
Optionally, if message is IP messages, processing module 901, specifically for determining the head field in message
In Flags fields and/or service type tos field include mark.
It should be noted that being schematical to the division of module in the embodiment of the present invention, only one kind is patrolled
Collect function to divide, there can be other dividing mode when actually realizing, in addition, in each embodiment of the application
In each functional module can be integrated in a module or individually be physically present, can also be two
Or two or more module is integrated in a module.Above-mentioned integrated module both can be real using the form of hardware
It is existing, it would however also be possible to employ the form of software function module is realized.
Specifically, in the embodiment of the present invention, processing module 901 can be realized by processor, receiving module 900
There can be receiver realization, sending module 902 can be realized that wherein receiver and transmitter can by transmitter
With when hardware is realized it is integrated in a transceiver.
Figure 10 for message transmissions egressPE node devices hardware architecture diagram, including processor 1010,
Transceiver 1020 and memory 1030.Wherein, memory 1030 can be used for storage egressPE nodes set
Standby program/the code pre-installed when dispatching from the factory, can also store code when being performed for processor 1010 etc..Should
Each component in egressPE node devices is coupled by bus system 1040, wherein bus system
1040 in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.Wherein,
Processor 1010 can use general central processing unit (Central Processing Unit, CPU), micro- place
Reason device, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or
One or more integrated circuits, for performing associative operation, to realize technology that the embodiment of the present invention is provided
Scheme.
Although it should be noted that the egressPE node devices shown in Figure 10 illustrate only processor 1010, transmitting-receiving
Device 1020 and memory 1030, but during implementing, it should be apparent to a person skilled in the art that
The equipment is also comprising other devices necessary to realizing normal operation.Meanwhile, according to specific needs, this area
Technical staff should be understood that the egressPE node devices can also be comprising realizing the hardware of other additional functions
Device.In addition, it should be apparent to a person skilled in the art that the egressPE node devices also can be included only
Device or module necessary to realizing the embodiment of the present invention, without including whole devices shown in Figure 10.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized,
It can be by computer program to instruct the hardware of correlation to complete, above-mentioned program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, above-mentioned storage medium can be disk, CD, read-only memory (ROM：Read-Only
) or random access memory (RAM Memory：Random Access Memory) etc..
Based on same inventive concept, a kind of system of message transmissions is additionally provided in the embodiment of the present invention, due to
The corresponding method of system of message transmissions be message transmissions of the embodiment of the present invention method, therefore the present invention implement
The implementation of the system of example message transmissions may refer to the implementation of this method, repeats part and repeats no more.
As shown in figure 11, the system of message transmissions of the embodiment of the present invention, including provided in an embodiment of the present invention
One ingressPE node devices 1110 and any egressPE node devices provided in an embodiment of the present invention
1120。
It can be seen from the above：IngressPE nodes receive the former report that the first equipment is sent to the second equipment
Text, first equipment and second equipment are communicated by multiprotocol label switching MPLS network, described
IngressPE nodes are to connect the node of first equipment in the MPLS network；It is determined that the former report
The length of text is more than after the MTU MTU of transmission path, to the former message fragment, obtains at least
Two length are not more than in the MTU of transmission path fragment message, at least two fragment message
Each fragment message carries mark, described to mark for identifying the fragment message for the ingressPE nodes
Message after burst；At least two fragment message is sent out by outlet operator edge egressPE nodes
Give second equipment, the egressPE nodes are to connect second equipment in the MPLS network
Node.Because ingressPE nodes are sent to the message of the second equipment in the first equipment in this technical scheme
Length be more than transmission path MTU when, to the message carry out burst, wherein, each burst after burst
Message carries mark, so that when egressPE nodes receive the message for carrying mark, can recognize
It is the message after ingressPE node bursts to go out the message, then cause egressPE nodes to receive by
Message after ingressPE node bursts recombinated, it is to avoid egressPE nodes are directly by ingressPE
Message after node burst is sent to the second equipment so that the second equipment because can not reconstructed file and caused by lose
Bag, the problem of causing the interruption of business.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
The form of embodiment in terms of conjunction software and hardware.Wherein wrapped one or more moreover, the present invention can be used
Containing computer usable program code computer-usable storage medium (include but is not limited to magnetic disk storage,
CD-ROM, optical memory etc.) on the form of computer program product implemented.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Flow chart and/or block diagram describe.It should be understood that can by computer program instructions implementation process figure and/
Or each flow and/or square frame in block diagram and the flow in flow chart and/or block diagram and/or
The combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, embedded
Processor or the processor of other programmable data processing devices are to produce a machine so that pass through computer
Or the instruction of the computing device of other programmable data processing devices is produced for realizing in one stream of flow chart
The device for the function of being specified in journey or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices
In the computer-readable memory worked in a specific way so that be stored in the computer-readable memory
Instruction, which is produced, includes the manufacture of command device, and the command device is realized in one flow of flow chart or multiple streams
The function of being specified in one square frame of journey and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and perform series of operation steps on computer or other programmable devices to produce computer implemented place
Reason, so that the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of being specified in flow or multiple flows and/or one square frame of block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the present invention
Bright spirit and scope.So, if the present invention these modifications and variations belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (23)
1. a kind of method of message transmissions, it is characterised in that this method includes：
Entrance Provider Edge ingressPE nodes receive the former message that the first equipment is sent to the second equipment, institute
State the first equipment and second equipment is communicated by multiprotocol label switching MPLS network, it is described
IngressPE nodes are to connect the node of first equipment in the MPLS network；
The ingressPE nodes are it is determined that the length of the former message is more than the MTU of transmission path
After MTU, to the former message fragment, the MTU that at least two length are not more than the transmission path is obtained
Fragment message, each fragment message at least two fragment message carries mark, and the mark is used
It is the message after the ingressPE nodes burst in identifying the fragment message；
At least two fragment message is passed through outlet operator edge egressPE by the ingressPE nodes
Node is sent to second equipment, and the egressPE nodes are that described the is connected in the MPLS network
The node of two equipment.
2. the method as described in claim 1, it is characterised in that the MTU of the transmission path is described
It is used for the section for transmitting former message between ingressPE nodes described in MPLS network and the egressPE nodes
Minimum MTU in the MTU supported in point.
3. method as claimed in claim 1 or 2, it is characterised in that also include：
The ingressPE nodes if it is determined that the length of the former message is not more than the MTU of the transmission path,
The former message is then sent to second equipment by the egressPE nodes.
4. the method as described in claims 1 to 3 is any, it is characterised in that the message of the fragment message
The mark is carried in head.
5. method as claimed in claim 4, it is characterised in that described if the former message is IP messages
Flags fields and/or service type tos field in the heading of fragment message include the mark.
6. the method as described in claim 1 to 5 is any, it is characterised in that the fragment message, which is carried, to be divided
Piece configured information, the burst configured information includes the former message for being used to indicate the fragment message ownership
Information, the fragment message is relative to the piece offset of the former message and for indicating the burst report
Text whether be last fragment message that the former message fragment is obtained information.
7. method as claimed in claim 6, it is characterised in that institute is carried in the load of the fragment message
State burst configured information.
8. a kind of method of message transmissions, it is characterised in that this method includes：
Outlet operator edge egressPE nodes receive the report from entrance Provider Edge ingressPE nodes
Text, the ingressPE nodes are to connect the node of the first equipment in multiprotocol label switching MPLS network,
The egressPE nodes are that the node of the second equipment is connected in the MPLS network, first equipment with
Second equipment is communicated by the MPLS network；
The egressPE nodes are it is determined that the message is carried after marking, according to point carried in the message
On piece configured information, the position that the packet buffer is indicated to the burst configured information, the position is
It is used for the position of the data space of Packet reassembling, the burst configured information in the egressPE nodes
The piece of information, the message relative to the former message including the former message for indicating the message ownership
Offset and for indicate the message whether be last message that the former message fragment is obtained letter
Breath, the former message is the message that first equipment is sent to second equipment；
The egressPE nodes are according to the burst configured informations of all messages in the data space, really
Surely the former message is obtained；
The former message is sent to second equipment by the egressPE nodes.
9. method as claimed in claim 8, it is characterised in that also include：
The egressPE nodes if it is determined that the message from the ingressPE nodes does not carry the mark,
The message from the ingressPE nodes is then sent to second equipment.
10. method as claimed in claim 8 or 9, it is characterised in that the egressPE nodes are determined
The message carries the mark, including：
The egressPE nodes determine to carry the mark in the head field of the message.
11. method as claimed in claim 10, it is characterised in that described if the message is IP messages
The determination of egressPE nodes carries the mark in the head field of the message, including：
The egressPE nodes determine Flags fields and/or service type in the head field of the message
Tos field includes the mark.
12. a kind of entrance Provider Edge ingressPE node devices of message transmissions, it is characterised in that institute
Stating ingressPE node devices includes：
Receiving module, the former message of the second equipment is sent to for receiving the first equipment, first equipment and
Second equipment is communicated by multiprotocol label switching MPLS network, and the ingressPE node devices are
The equipment that first equipment is connected in the MPLS network；
Processing module, for it is determined that the length of the former message is more than the MTU of transmission path
After MTU, to the former message fragment, the MTU that at least two length are not more than the transmission path is obtained
Fragment message, each fragment message at least two fragment message carries mark, and the mark is used
It is the message after the ingressPE node devices burst in identifying the fragment message；
Sending module, at least two fragment message to be saved by outlet operator edge egressPE
Point device is sent to second equipment, and the egressPE node devices are connection in the MPLS network
The equipment of second equipment.
13. ingressPE node devices as claimed in claim 12, it is characterised in that the transmission road
The MTU in footpath is that ingressPE node devices are set with the egressPE nodes described in the MPLS network
Minimum MTU in the MTU supported in node between standby for transmitting former message.
14. the ingressPE node devices as described in claim 12 or 13, it is characterised in that the hair
Module is sent, is additionally operable to：
, will after the processing module determines that the length of the former message is not more than the MTU of the transmission path
The former message is sent to second equipment by the egressPE node devices.
15. the ingressPE node devices as described in claim 12 to 14 is any, it is characterised in that institute
The mark is carried in the heading for stating fragment message.
16. ingressPE node devices as claimed in claim 15, it is characterised in that if the former report
Text is IP messages, Flags fields and/or service type tos field bag in the heading of the fragment message
Include the mark.
17. the ingressPE node devices as described in claim 12 to 16 is any, it is characterised in that institute
State fragment message and carry burst configured information, the burst configured information includes being used to indicate the fragment message
The piece offset and use of the information of the former message of ownership, the fragment message relative to the former message
In indicate the fragment message whether be last fragment message that the former message fragment is obtained information.
18. ingressPE node devices as claimed in claim 17, it is characterised in that the burst report
The burst configured information is carried in the load of text.
19. a kind of outlet operator edge egressPE node devices of message transmissions, it is characterised in that institute
Stating egressPE node devices includes：
Receiving module, it is described for receiving the message from entrance Provider Edge ingressPE node devices
IngressPE node devices are to connect the equipment of the first equipment in multiprotocol label switching MPLS network, described
EgressPE node devices are that the equipment of the second equipment is connected in the MPLS network, first equipment with
Second equipment is communicated by the MPLS network；
Processing module, for it is determined that the message is carried after marking, according to the burst carried in the message
On configured information, the position that the packet buffer is indicated to the burst configured information, the position is institute
The position for the data space for being used for Packet reassembling in egressPE node devices is stated, the burst indicates letter
Breath includes being used to indicate the information of the former message of the message ownership, the message relative to the former message
Piece offset and for indicating whether the message is last message that the former message fragment is obtained
Information, the former message is the message that first equipment is sent to second equipment；And according to the number
According to the burst configured information of all messages in memory space, it is determined that obtaining the former message；
Sending module, for the former message to be sent into second equipment.
20. egressPE node devices as claimed in claim 19, it is characterised in that the sending module
It is additionally operable to：
Determine that the message from the ingressPE node devices does not carry the mark in the processing module,
Message from the ingressPE node devices is sent to second equipment.
21. the egressPE node devices as described in claim 19 or 20, it is characterised in that the place
Module is managed, specifically for：
It is determined that carrying the mark in the head field of the message.
22. egressPE node devices as claimed in claim 21, it is characterised in that if the message is
IP messages, the processing module, specifically for：
It is determined that the Flags fields and/or service type tos field in the head field of the message are including described
Mark.
23. a kind of system of message transmissions, it is characterised in that including any institute of such as claim 12 to 18
The ingressPE node devices stated, and egressPE nodes as described in claim 19 to 22 is any are set
It is standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098436.8A CN107104898A (en) | 2016-02-22 | 2016-02-22 | Method, equipment and the system of message transmissions |
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| CN201610098436.8A CN107104898A (en) | 2016-02-22 | 2016-02-22 | Method, equipment and the system of message transmissions |
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| CN112333094B (en) * | 2020-11-27 | 2022-10-18 | 迈普通信技术股份有限公司 | Data transmission processing method and device, network equipment and readable storage medium |
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Application publication date: 20170829 |