CN109889779A - A kind for the treatment of method and apparatus of packet out-ordering - Google Patents
A kind for the treatment of method and apparatus of packet out-ordering Download PDFInfo
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Abstract
The embodiment of the present application provides a kind for the treatment of method and apparatus of packet out-ordering, and the method and device are applied in view networking, and the view networking includes view connection cat terminal, with the internet terminal connecting depending on connection cat terminal；After first message is stored in first corresponding position depending on connection cat terminal, it may wait for the arrival of second message of target, or it will be after second message deposit, second corresponding position, it may wait for the arrival of first message of target, data recombination is realized with this, when the data forwarded depending on connection cat terminal are when a small range occurs out-of-order, the embodiment of the present application can avoid fragment message and abandon, and achieve the purpose that reduce packet loss.
Description
Technical field
This application involves view networking technology fields, and the processing method and a kind of message more particularly to a kind of packet out-ordering are random
The processing unit of sequence.
Background technique
It is the important milestone of network Development depending on networking, is the more advanced form of internet, is a real-time network, it can
It realizes the whole network HD video real-time Transmission that current internet cannot achieve, pushes numerous Internet applications to HD video,
High definition is face-to-face.It will finally realize that the world without distance, realizes that the distance of person to person in global range is the distance of a screen.
With the extensive use of view networking, the mutual access of view networking and internet is also achieved, but realizes view at present
There is packet out-ordering when forwarding data often in the view connection cat terminal and view connection cat server-side that networking is mutually accessed with internet
Phenomenon leads to the frequent packet loss of data.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present application and overcomes the above problem or at least partly in order to provide one kind
A kind of processing method of the packet out-ordering to solve the above problems and a kind of corresponding processing unit of packet out-ordering are, it can be achieved that view connection
Cat terminal or depending on the data that are forwarded of connection cat server-side when a small range occurs out-of-order, avoid fragment message from abandoning, reduction is lost
The purpose of packet rate.
To solve the above-mentioned problems, the embodiment of the present application discloses a kind of processing method of packet out-ordering, and the method is answered
For regarding in networking, the view networking includes view connection cat terminal, with the internet terminal connecting depending on connection cat terminal, the side
Method includes:
Whether the view connection cat terminal judges the networking message that regards as fragment for currently received view networking message
Message；
If so, described regard fragment message described in connection cat terminal recognition as first message or second message；
When recognition result is first message, comprising the following steps:
It is described to judge whether there be second message of target corresponding with first message in caching depending on connection cat terminal；
If there is second message of the target in the caching, view connection cat terminal is by first message and described
Second Packet reassembling of target generates interconnection network packet, and the interconnection network packet is sent to the internet terminal；
If without second message of the target in the caching, first message is stored in institute by the view connection cat terminal
State caching；
When recognition result is second message, comprising the following steps:
It is described to judge whether there be first message of target corresponding with second message in caching depending on connection cat terminal；
If there is first message of the target in the caching, view connection cat terminal is by second message and described
First Packet reassembling of target generates interconnection network packet, and the interconnection network packet is sent to the internet terminal；
If without first message of the target in the caching, second message is stored in institute by the view connection cat terminal
State caching.
Optionally, the fragment message includes view networking heading and load；
Described to carry segmental identification depending on networking heading, the segmental identification includes first mark or second mark
Know.
Optionally, the view connection cat terminal is by second Packet reassembling of first message and the target, or, by institute
First Packet reassembling of second message and the target is stated, generating the step of interconnecting network packet includes:
The connection cat terminal that regards disassembles second message of first message and the target as view networking message
Head and load, or first message of second message and the target is disassembled as view networking heading and load；
The view connection cat terminal splices the load of second message of first message and the target, or will be described
The load of first message of second message and the target is spliced；
The view connection cat terminal adds internet heading to spliced load, generates interconnection network packet.
Optionally, described also to carry view networking serial number depending on networking heading；The caching includes cache threshold length；
Before the step of first message or second message are stored in the caching by the view connection cat terminal,
The method also includes:
It is described depending on connection cat terminal obtain first message the first view networking serial number or second message the
Two view networking serial numbers；
It is described that the cache threshold length is taken the remainder depending on networking serial number by described first depending on connection cat terminal, with the remainder
It is determined as first corresponding position number of first message in the caching；Or by the second view networking serial number to institute
It states cache threshold length to take the remainder, second corresponding position of second message in the caching is determined as with the remainder
Number.
Optionally, if without second message of the target in the caching, the view connection cat terminal reports described first
Text be stored in the caching the step of include:
If without second message of the target in the caching, the view connection cat terminal judges first message in institute
Whether the first corresponding position stated in caching is occupied；
If first corresponding position is unoccupied, first message is stored in described first by the view connection cat terminal
Corresponding position；
If first corresponding position is occupied, the view connection cat terminal is clear by the content of first corresponding position
It removes, and first message is stored in first corresponding position.
Optionally, if without first message of the target in the caching, the view connection cat terminal reports described second
Text be stored in the caching the step of include:
If without first message of the target in the caching, the view connection cat terminal judges second message in institute
Whether the second corresponding position stated in caching is occupied；
If second corresponding position is unoccupied, second message is stored in described second by the view connection cat terminal
Corresponding position；
If second corresponding position is occupied, the view connection cat terminal is clear by the content of second corresponding position
It removes, and second message is stored in second corresponding position.
Optionally, the view connection cat terminal includes view connection cat client and view connection cat server-side；The internet terminal packet
Include the user terminal and internet site server of internet protocol-based；
When it is described regard connection cat terminal for view connection cat client when, the internet terminal be user terminal；
When it is described regard connection cat terminal for view connection cat server-side when, the internet terminal be internet site server.
To solve the above-mentioned problems, the embodiment of the present application also discloses a kind of processing unit of packet out-ordering, described device
Applied in view networking, the view networking includes view connection cat terminal, described with the internet terminal connecting depending on connection cat terminal
Include: depending on connection cat terminal
Depending on message judgment module of networking, for judging the view networking message for currently received view networking message
It whether is fragment message；
Fragment message identification module, for it is described regard network message as fragment message when, identify that the fragment message is
First message or second message；
When recognition result is first message, comprise the following modules:
First judgment module is cached, it is target second corresponding with first message for judging whether to have in caching
Message；
The first recombination module of message, when for there is second message of target in the caching, by described first
Second Packet reassembling of message and the target generates interconnection network packet, and the interconnection network packet is sent to the interconnection
Network termination；
Message first is stored in module, when in the caching without second message of target, by described first
Message is stored in the caching；
When recognition result is second message, comprise the following modules:
The second judgment module is cached, it is target first corresponding with second message for judging whether to have in caching
Message；
The second recombination module of message, when for there is first message of target in the caching, by described second
First Packet reassembling of message and the target generates interconnection network packet, and the interconnection network packet is sent to the interconnection
Network termination；
Message second is stored in module, when in the caching without first message of target, by described second
Message is stored in the caching.
The embodiment of the present application also provides a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that the method that described device executes one or more described in the embodiment of the present application.
The embodiment of the present application also provides one or more machine readable medias, are stored thereon with instruction, when by one or
When multiple processors execute, so that the method that the processor executes one or more described in the embodiment of the present application.
The embodiment of the present application includes the following advantages:
The characteristic of the embodiment of the present application application view networking, is stored in described first pair for first message depending on connection cat terminal
After answering position, the arrival of second message of target may wait for；Or after second message be stored in second corresponding position,
It may wait for the arrival of first message of target, data recombination realized with this；When the data forwarded depending on connection cat terminal are in small range
When interior generation is out-of-order, the embodiment of the present application can avoid fragment message and abandon, and achieve the purpose that reduce packet loss.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the application；
Fig. 2 is a kind of hardware structural diagram of node server of the application；
Fig. 3 is a kind of hardware structural diagram of access switch of the application；
Fig. 4 is that a kind of Ethernet association of the application turns the hardware structural diagram of gateway；
Fig. 5 is a kind of step flow chart of the processing method of packet out-ordering of the embodiment of the present application；
Fig. 6 is a kind of structural block diagram of the processing unit of packet out-ordering of the embodiment of the present application.
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing and it is specific real
Applying mode, the present application will be further described in detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
To make those skilled in the art more fully understand the embodiment of the present application, it is introduced below to depending on networking:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
The seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (NetworkSecurity Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 the embodiment of the present application can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded: 1) port if meeting the following conditions
It is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operation such as initialization, read-write to hard disk；CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in the embodiment of the present application:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in the embodiment of the present application: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic of view networking, one of core idea of the embodiment of the present application is proposed, it then follows regard the association of networking
View is handled depending on the fragment message in networking, then the corresponding position of wherein a piece of fragment message deposit caching waits
Another fragment message of same view networking message arrives, and realizes Packet reassembling, generates interconnection network packet and retransmits to internet
Terminal can be realized depending on connection cat terminal or the view data that are forwarded of connection cat server-side when random ordering occurs for a small range with this, be avoided
Fragment message abandons, and reduces the purpose of packet loss.
Embodiment 1:
As shown in figure 5, showing a kind of step flow chart of the processing method of packet out-ordering of the embodiment of the present application, the side
Method can be applied in view networking, and the view networking includes view connection cat terminal, whole with the internet connecting depending on connection cat terminal
End, the method can specifically include following steps:
The view connection cat terminal of the embodiment of the present application includes view connection cat client and view connection cat server-side；The internet terminal
User terminal and internet site server including internet protocol-based；
When it is described regard connection cat terminal for view connection cat client when, the internet terminal be user terminal；
When it is described regard connection cat terminal for view connection cat server-side when, the internet terminal be internet site server.
According to the characteristic of view networking, data biography is generally carried out with the format of standard view networking data packet in view networking at present
Defeated, a standard is defaulted as 1024 bytes depending on the size of networking data packet.And 1514 bytes are generally depending on networking message, when excessive
It can not be transmitted in depending on networking unobstructedly, so at least can be into two pieces when being transmitted in depending on networking depending on networking message, formation point
Piece message.
Step S501: the view connection cat terminal judges the view networking message for currently received view networking message
It whether is fragment message；
Step S502: if so, described regard fragment message described in connection cat terminal recognition as first message or second message；
Since fragment message includes view networking heading and load；
Described to carry segmental identification depending on networking heading, the segmental identification includes first mark or second mark
Know.
So can judge that current view joins according to segmental identification depending on connection cat terminal in one alternative embodiment of the application
Whether network packet is fragment message, and according to the serial number of segmental identification, (serial number can be regarded as first mark or second mark herein
Know), it may further determine that this belongs to first message or second message depending on networking message.
Above-mentioned first mark or second mark can specifically identify for fragment, for example one regards networking message to divide
Piece message regards the segmental identification in networking heading as " 01/0001# ", and above-mentioned 0001# is specific segmental identification, is indicated
It is sent to first fragment message of the view connection cat terminal；01 is first mark, indicates the fragment message for institute's fragment
First.This mode can accurately identify the specific segmental identification when forward sight networking message, facilitate view connection cat terminal and make
It accurate judgement and performs the next step rapid out.
In addition, it is described regard connection cat terminal recognition described in fragment message can also be according to this as first message or second message
The size of data of fragment message identifies that after being split as fragment message depending on networking message, first fragment message be about standard
Depending on networking data packet size, about 1024 bytes；Second fragment message is generally complete to subtract standard view connection depending on networking message
The size of network data packet, about 490 bytes.If the size of data of current slice message is 1000 bytes or so, it is identified as the
A piece of message；If the size of data of current slice message is 500 bytes or so, it is identified as second message.This mode is known
Other fragment is relatively simple, is not take up the byte of data message, but recognition accuracy is not high.
In view networking, after establishing connection depending on connection cat terminal and depending on networking at present, when starting to carry out data interaction, go out often
The situation of existing fragment message random ordering.For example after some splits into two fragment messages depending on networking message, it will appear second often
Message is first sent to view connection cat terminal, or can not slowly receive second message after having received first message depending on connection cat terminal
The case where, and when only receiving any one fragment message depending on connection cat terminal, it is imperfect due to message, which can not be sent
Into internet, so packet loss that the view can only be networked, causes packet loss.
In view of the above problems, the embodiment of the present application is that view connection cat terminal is provided with caching mechanism, it is any a piece of when receiving
When fragment message, all the fragment message first can be put into caching, to wait same another fragment message depending on message of networking to arrive
Come.
When regard connection cat terminal to the recognition result of fragment message as first message when, it is described specifically can be with depending on joining cat terminal
Execute following steps:
Step S503: described to judge whether there is target second corresponding with first message in caching depending on connection cat terminal
Piece message；
If currently received fragment message is first message, the view connection cat terminal judgement is based on same view networking report
Whether second message of target of text has incorporated caching.
Step S504: if there is second message of the target in the caching, the view connection cat terminal is by described first
Second Packet reassembling of message and the target generates interconnection network packet, and the interconnection network packet is sent to internet end
End；
In one alternative embodiment of the application, the possibility implementation of step S504 is shown, can specifically include following
Step:
The connection cat terminal that regards disassembles second message of first message and the target as view networking message
Head and load；
The view connection cat terminal splices the load of second message of first message and the target, the view connection
Cat terminal adds internet heading to spliced load, generates interconnection network packet.
Above-mentioned steps realize the recombination of two panels fragment message, for example first message is 1024 bytes, and target second
Message is 500 bytes, second message of first message and the target is disassembled for view networking heading and load
Afterwards, the load contents of first message are 1000 bytes, and the load contents of second message of target are 476 bytes, whole depending on connection cat
After the load of second message of first message and the target is spliced at end, being formed by splicing load just is 1476 words
Section.For example added internet heading is 20 bytes, then interconnection network packet generated is just 1496 bytes.
Since segmental identification is located in view networking heading, after fragment message recombinates after being disassembled, depending on heading of networking
Also it is dropped automatically, so interconnection network packet generated is a complete message, not with segmental identification.
Step S505: if without second message of the target in the caching, the view connection cat terminal is by described first
Message is stored in the caching；
In one alternative embodiment of the application, the specific implementation sub-step of step S505 is shown:
Sub-step one: if without second message of the target in the caching, the view connection cat terminal judges described first
Whether first corresponding position of the piece message in the caching be occupied；
It is described also to carry view networking serial number depending on networking heading；The caching includes cache threshold length；
And inquire before corresponding position, the correspondence storage location in the buffer of first message must be determined first,
It is possible as follows to determine that the mode of position implements step:
The first view networking serial number that first message is obtained depending on connection cat terminal；
It is described that the cache threshold length is taken the remainder depending on networking serial number by described first depending on connection cat terminal, with the remainder
It is determined as first corresponding position number of first message in the caching.
It is also fixed depending on the digit entrained by networking heading depending on serial number of networking since cache threshold length is fixed
, the embodiment of the present application carries out percentage counting to the first view networking serial number and the cache threshold length, and takes the remainder, can be real
The searching loop of existing remainder.Because the same fragment message depending on networking serial number be it is fixed, serial number is to the caching
Threshold length takes the remainder, and obtained the first corresponding position number is also fixed.It is sent in a periodic manner depending on networking message
Join cat terminal to the view, exactly constantly sends some business to depending on connection cat terminal in a manner of broadcast type depending on networked server
Signaling includes that view several different is networked message in the traffic signaling, when all views of traffic signaling message of networking is complete
After portion is sent, it can repeat for the traffic signaling to be sent to the view connection cat terminal again depending on networked server.So view connection cat
Terminal can receive view networking message (fragment message) twice in a period, and the searching loop of remainder can be realized with this,
Will appear inquire the first corresponding position number of first message in the caching whether occupied step.
Sub-step two: if the first corresponding position is unoccupied, first message is stored in institute by the view connection cat terminal
State the first corresponding position；
Sub-step three: if the first corresponding position is occupied, the view connection cat terminal will be in first corresponding position
Hold and remove, and first message is stored in first corresponding position.
When regard connection cat terminal to the recognition result of fragment message as second message when, it is described specifically can be with depending on joining cat terminal
Execute following steps:
Step S506: described to judge whether there is target first corresponding with second message in caching depending on connection cat terminal
Piece message；
It is identified depending on connection cat terminal according to segmental identification and second, can judge whether have and described second in caching
Piece message first message of corresponding target.
Step S507: if there is first message of the target in the caching, the view connection cat terminal is by described second
First Packet reassembling of message and the target generates interconnection network packet, and the interconnection network packet is sent to internet end
End；
Above-mentioned reconstitution steps and the realization principle of step S504 are essentially identical, do not illustrate principle, reconstitution steps excessively herein
Specific implementation is as follows:
The connection cat terminal that regards disassembles first message of second message and the target as view networking message
Head and load；
The view connection cat terminal splices the load of first message of second message and the target；
The view connection cat terminal adds internet heading to spliced load, generates interconnection network packet.
Step S508: if without first message of the target in the caching, the view connection cat terminal is by described second
Message is stored in the caching.
Step S508 and the realization principle of step S505 are essentially identical, only herein to illustrate more.
The specific implementation for being stored in caching is as follows:
If without first message of the target in the caching, the view connection cat terminal judges second message in institute
Whether the second corresponding position stated in caching is occupied；
If the second corresponding position is unoccupied, the view connection cat terminal is corresponding by second message deposit described second
Position；
If the second corresponding position is occupied, the view connection cat terminal removes the content of second corresponding position, and
Second message is stored in second corresponding position.
Determine second corresponding position of second message in the caching, determining that the mode of position implements step can
It can be as follows:
The second view networking serial number that second message is obtained depending on connection cat terminal；
It is described that the cache threshold length is taken the remainder depending on networking serial number by described second depending on connection cat terminal, with the remainder
It is determined as second corresponding position number of second message in the caching.It realizes and the remainder of second message is traversed
Principle only herein to illustrate referring to first message more.
To sum up, after first message being stored in first corresponding position depending on connection cat terminal, it may wait for target second
The arrival of piece message；Or by after second message deposit, second corresponding position, it may wait for first message of target
It arrives, data recombination is realized with this.The embodiment of the present application can realize view connection cat terminal or view connection cat server-side by above step
The data forwarded avoid fragment message from abandoning, reduce the purpose of packet loss when a small range occurs out-of-order.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, the embodiment of the present application is not limited by the described action sequence, because according to
According to the embodiment of the present application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and related movement not necessarily the application is implemented
Necessary to example.
Embodiment 2:
As shown in fig. 6, the method in corresponding embodiment 1, shows a kind of processing dress of packet out-ordering of the embodiment of the present application
The structural block diagram set, described device can be applied in view networking, and the view networking includes view connection cat terminal, join cat with the view
The internet terminal of terminal connection, described to can specifically include depending on connection cat terminal with lower module:
Depending on message judgment module 601 of networking, for judging the view networking report for currently received view networking message
Whether text is fragment message；
Fragment message identification module 602, for it is described regard network message as fragment message when, identify the fragment message
For first message or second message；
When recognition result is first message, comprise the following modules:
First judgment module 603 is cached, for judge whether there is target corresponding with first message the in caching
Two messages；
The first recombination module of message 604, when for there is second message of target in the caching, by described first
Second Packet reassembling of piece message and the target generates interconnection network packet, and the interconnection network packet is sent to internet
Terminal；
Message first is stored in module 605, when in the caching without second message of target, by described first
Piece message is stored in the caching；
When recognition result is second message, comprise the following modules:
The second judgment module 606 is cached, for judging whether there is target corresponding with second message the in caching
A piece of message；
The second recombination module of message 607, when for there is first message of target in the caching, by described second
First Packet reassembling of piece message and the target generates interconnection network packet, and the interconnection network packet is sent to internet
Terminal；
Message second is stored in module 608, when in the caching without first message of target, by described second
Piece message is stored in the caching.
Method in corresponding the embodiment of the present application 1, described to can specifically include depending on connection cat terminal with lower module:
Message disassembles module, for disassembling second message of first message and the target as view networking report
Literary head and load, or first message of second message and the target is disassembled as view networking heading and load；
Splicing module is loaded, for the load of second message of first message and the target to be spliced, or will
The load of first message of second message and the target is spliced；
Internet message generation module generates interconnection network packet for adding internet heading to spliced load.
Method in corresponding the embodiment of the present application 1, described to can specifically include depending on connection cat terminal with lower module:
Module is obtained depending on networking serial number, for obtaining the first view networking serial number or described second of first message
Second view networking serial number of piece message；
Corresponding position determining module, for described first to take the remainder the cache threshold length depending on networking serial number, with
The remainder is determined as first corresponding position number of first message in the caching；Or the view connection cat terminal will
Described second takes the remainder the cache threshold length depending on networking serial number, is determined as second message in institute with the remainder
State the second corresponding position number in caching.
Method in corresponding the embodiment of the present application 1, message first, which is stored in module 605, can specifically include following submodule:
First corresponding position judging submodule, when in the caching without second message of target, the view
Connection cat terminal judges whether first corresponding position of first message in the caching be occupied；
First message is stored in submodule, for when the first corresponding position is unoccupied, first message to be deposited
Enter first corresponding position；
First message replaces submodule, is used for when the first corresponding position is occupied, by first corresponding position
Content remove, and will first message deposit, first corresponding position.
Method in corresponding the embodiment of the present application 1, message second, which is stored in module 608, can specifically include following submodule:
Second corresponding position judging submodule judges institute when in the caching without first message of target
Whether occupied state the second corresponding position of second message in the caching；
Second message is stored in submodule, for when the second corresponding position is unoccupied, second message to be deposited
Enter second corresponding position；
Second message replaces submodule, is used for when the second corresponding position is occupied, by second corresponding position
Content remove, and will second message deposit, second corresponding position.
The embodiment of the present application also provides a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that the method that described device executes one or more described in the embodiment of the present application.
The embodiment of the present application also provides one or more machine readable medias, are stored thereon with instruction, when by one or
When multiple processors execute, so that the method that the processor executes one or more described in the embodiment of the present application.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiments of the present application may be provided as method, apparatus or calculating
Machine program product.Therefore, the embodiment of the present application can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present application can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present application is referring to according to the method for the embodiment of the present application, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although preferred embodiments of the embodiments of the present application have been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and all change and modification within the scope of the embodiments of the present application.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Processing method to a kind of packet out-ordering provided herein and a kind of processing unit of packet out-ordering above, into
It has gone and has been discussed in detail, specific examples are used herein to illustrate the principle and implementation manner of the present application, the above implementation
The explanation of example is merely used to help understand the present processes and its core concept；Meanwhile for the general technology people of this field
Member, according to the thought of the application, there will be changes in the specific implementation manner and application range, in conclusion this explanation
Book content should not be construed as the limitation to the application.
Claims (10)
1. a kind of processing method of packet out-ordering, which is characterized in that the method is applied in view networking, described to include depending on networking
Depending on joining cat terminal, with the internet terminal being connect depending on connection cat terminal, which comprises
Whether the view connection cat terminal judges the networking message that regards as fragment report for currently received view networking message
Text；
If so, described regard fragment message described in connection cat terminal recognition as first message or second message；
When recognition result is first message, comprising the following steps:
It is described to judge whether there be second message of target corresponding with first message in caching depending on connection cat terminal；
If there is second message of the target in the caching, the view joins cat terminal for first message and the target
Second Packet reassembling generates interconnection network packet, and the interconnection network packet is sent to the internet terminal；
If without second message of the target in the caching, the view connection cat terminal is described slow by first message deposit
It deposits；
When recognition result is second message, comprising the following steps:
It is described to judge whether there be first message of target corresponding with second message in caching depending on connection cat terminal；
If there is first message of the target in the caching, the view joins cat terminal for second message and the target
First Packet reassembling generates interconnection network packet, and the interconnection network packet is sent to the internet terminal；
If without first message of the target in the caching, the view connection cat terminal is described slow by second message deposit
It deposits.
2. the method according to claim 1, wherein
The fragment message includes view networking heading and load；
Described to carry segmental identification depending on networking heading, the segmental identification includes first mark or second mark.
3. according to the method described in claim 2, it is characterized in that, the view joins cat terminal for first message and described
Second Packet reassembling of target, or, first Packet reassembling of second message and the target is generated interconnection network packet
The step of include:
It is described regard connection cat terminal will second message of first message and the target disassemble for regard network heading with
Load, or first message of second message and the target is disassembled as view networking heading and load；
The view connection cat terminal splices the load of second message of first message and the target, or by described second
The load of first message of piece message and the target is spliced；
The view connection cat terminal adds internet heading to spliced load, generates interconnection network packet.
4. according to the method described in claim 2, it is characterized in that, described also carry view networking serial number depending on networking heading；
The caching includes cache threshold length；
It is described before the step of first message or second message are stored in the caching by the view connection cat terminal
Method further include:
It is described to obtain the first view networking serial number of first message or the second view of second message depending on connection cat terminal
Networking serial number；
It is described that the cache threshold length is taken the remainder depending on networking serial number by described first depending on connection cat terminal, it is determined with the remainder
The first corresponding position for being first message in caching number；Or by the second view networking serial number to described slow
It deposits threshold length to take the remainder, second corresponding position of second message in the caching is determined as with the remainder and is compiled
Number.
5. according to the method described in claim 4, it is characterized in that, if without second message of the target, institute in the caching
Stating the step of first message is stored in the caching depending on connection cat terminal includes:
If without second message of the target in the caching, the view connection cat terminal judges first message described slow
Whether the first corresponding position in depositing is occupied；
If first corresponding position is unoccupied, the view connection cat terminal is corresponding by first message deposit described first
Position；
If first corresponding position is occupied, the view connection cat terminal removes the content of first corresponding position, and
First message is stored in first corresponding position.
6. according to the method described in claim 4, it is characterized in that, if without first message of the target, institute in the caching
Stating the step of second message is stored in the caching depending on connection cat terminal includes:
If without first message of the target in the caching, the view connection cat terminal judges second message described slow
Whether the second corresponding position in depositing is occupied；
If second corresponding position is unoccupied, the view connection cat terminal is corresponding by second message deposit described second
Position；
If second corresponding position is occupied, the view connection cat terminal removes the content of second corresponding position, and
Second message is stored in second corresponding position.
7. the method according to claim 1, wherein view connection cat terminal includes view connection cat client and view connection
Cat server-side；The internet terminal includes the user terminal and internet site server of internet protocol-based；
When it is described regard connection cat terminal for view connection cat client when, the internet terminal be user terminal；
When it is described regard connection cat terminal for view connection cat server-side when, the internet terminal be internet site server.
8. a kind of processing unit of packet out-ordering, which is characterized in that described device is applied in view networking, described to include depending on networking
It is described to include: depending on connection cat terminal with the internet terminal being connect depending on connection cat terminal depending on joining cat terminal
Depending on message judgment module of networking, for whether judging the view networking message for currently received view networking message
For fragment message；
Fragment message identification module, for it is described regard networking message as fragment message when, identify the fragment message be first
Piece message or second message；
When recognition result is first message, comprise the following modules:
First judgment module is cached, for judging whether there be target second report corresponding with first message in caching
Text；
The first recombination module of message, when for there is second message of target in the caching, by first message
With second Packet reassembling of the target, interconnection network packet is generated, and the interconnection network packet is sent to the internet end
End；
Message first is stored in module, when in the caching without second message of target, by first message
It is stored in the caching；
When recognition result is second message, comprise the following modules:
The second judgment module is cached, for judging whether there be target first report corresponding with second message in caching
Text；
The second recombination module of message, when for there is first message of target in the caching, by second message
With first Packet reassembling of the target, interconnection network packet is generated, and the interconnection network packet is sent to the internet end
End；
Message second is stored in module, when in the caching without first message of target, by second message
It is stored in the caching.
9. a kind of device characterized by comprising
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, when being executed by one or more of processors, are made
The methods for obtaining the one or more that described device is executed as described in claim 1-7.
10. one or more machine readable medias, which is characterized in that instruction is stored thereon with, when by one or more processors
When execution, so that the processor executes one or more methods as described in claim 1-7.
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