CN108882064A - A kind of port data packet transmission method and system based on GPON system - Google Patents
A kind of port data packet transmission method and system based on GPON system Download PDFInfo
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- CN108882064A CN108882064A CN201810665611.6A CN201810665611A CN108882064A CN 108882064 A CN108882064 A CN 108882064A CN 201810665611 A CN201810665611 A CN 201810665611A CN 108882064 A CN108882064 A CN 108882064A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0073—Provisions for forwarding or routing, e.g. lookup tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
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Abstract
The present invention relates to ethernet passive optical network technical fields, provide a kind of port data packet transmission method and system based on GPON system, and method includes：The data packet that each optical network unit ONU is sent is received, and the data packet received is temporarily stored in preconfigured reception buffer area；The relationship between port, purpose MAC and link direction is obtained, data packet unloading in the same direction will be belonged in corresponding buffer area in the same direction in the reception buffer area；Data packet in the buffer area in the same direction is parsed, port data is generated and sends pointer chained list；Pointer chained list is sent according to the port data of generation, it sends the data packet in the buffer area in the same direction in corresponding port buffer, to realize link loop free, load balancing to multiport send data packet, when a certain link breaks down, other links provide backup, improve the transmission reliability and transmitting efficiency of data message.
Description
Technical field
The invention belongs to ethernet passive optical network technical field more particularly to a kind of port data packets based on GPON system
Sending method and system.
Background technique
Ethernet passive optical network (Gigabit-Capable PON, GPON) technology is a kind of based on ethernet technology, point
To the passive optical network access technology of multiple spot, collect ethernet technology it is easy to maintain, inexpensive and PON network efficient the features such as
It, is the best mode for realizing Optical Access Network.
With the quickening of the integration of three networks and fiber entering household process, GPON system is generally used, broadband access network, video on demand,
The demands such as online game are increasing, and number of users is huge.Under the premise of GPON system resource is certain, the video of user's program request
Etc. contents there are delay phenomenon, there is Caton phenomenon in online game, and user experience is poor.Meanwhile when link breaks down, hair
It is raw to interrupt, influence user's use.
Summary of the invention
The purpose of the present invention is to provide a kind of port data packet transmission methods based on GPON system, it is intended to solve existing
In technology under the premise of GPON system resource is certain, there are delay phenomenon, online games to go out for the contents such as video of user's program request
Existing Caton phenomenon, user experience are poor.Meanwhile when link breaks down, interrupts, influence the problem of user uses.
The invention is realized in this way a kind of port data packet transmission method based on GPON system, the method includes
Following step：
The data packet that each optical network unit ONU is sent is received, and the data packet received is temporarily stored in preconfigured
It receives in buffer area；
The relationship between port, purpose MAC and link direction is obtained, data in the same direction will be belonged in the reception buffer area
Packet unloading is in corresponding buffer area in the same direction；
By parsing to input order and agreement, formation rule carries out the data packet in the buffer area in the same direction
Parsing generates port data and sends pointer chained list, and it includes data frame first address, data frame that the port data, which sends pointer chained list,
Relationship between length, next data frame header addresses and sending port；
Pointer chained list is sent according to the port data of generation, sends the data packet in the buffer area in the same direction to pair
In the port buffer answered；
Wherein, load balancing and mutually redundant strategy are all made of between the port between aggregation group and in aggregation group.
As an improvement scheme, the method also includes following step：
During port buffer sends data, the free memory capacity of each port buffer is carried out
Monitoring；
It is described to described slow in the same direction to the execution of the data packet in the buffer area in the same direction is delivered to from the reception buffer area
The data packet rushed in area is parsed, and the step of port data sends pointer chained list and subsequent step are generated.
As an improvement scheme, the method also includes following step：
Size priority and port data according to residual storage capacity send pointer chained list, deliver a packet to correspondence
Port buffer.
As an improvement scheme, the step of data packet in the buffer area in the same direction parses specifically wraps
Include following step：
By being parsed to input order and agreement, formation rule, obtain example corresponding to each data packet
Number, and determine that, for sending the aggregation group of data packet corresponding to each example, the rule includes port numbers, aggregation group
Number, instance number, vlan number, No. QINQ relationship between link direction；
According to the balanced rule of traffic load, the corresponding ports for sending data packet are determined in aggregation group.
As an improvement scheme, the step of relationship obtained between port, purpose MAC and link direction is specific
Include the following steps：
According to the corresponding relationship between the port and link direction pre-established, to the data packet in the reception buffer area
Purpose MAC parsing is carried out, the relationship between port, purpose MAC and link direction is acquired.
Another object of the present invention is to provide a kind of port data packet dispatching system based on GPON system, the systems
Including：
Packet-receiving module, the data packet sent for receiving each optical network unit ONU；
Temporary storage module, for the data packet received to be temporarily stored in preconfigured reception buffer area；
First obtains module, for obtaining the relationship between port, purpose MAC and link direction；
Unloading module, for data packet unloading in the same direction will to be belonged in corresponding buffer area in the same direction in the reception buffer area
It is interior；
Resolve packet module, for by input order and agreement parse, formation rule, and to it is described in the same direction
Data packet in buffer area is parsed；
Pointer chained list generation module, for generating port data hair according to the parsing to the data packet in buffer area in the same direction
Pointer chained list is sent, it includes data frame first address, data frame length, next data frame stem that the port data, which sends pointer chained list,
Relationship between address and sending port；
First packet sending module will be described in the same direction for sending pointer chained list according to the port data of generation
Data packet in buffer area is sent in corresponding port buffer；
Wherein, load balancing and mutually redundant strategy are all made of between the port between aggregation group and in aggregation group.
As an improvement scheme, the system also includes：
Free memory capacity monitoring modular is used for during port buffer sends data, each end
The free memory capacity of mouth buffer area is monitored；
Execution module is returned to, for being delivered to the execution of the data packet in the buffer area in the same direction to from the reception buffer area
The data packet in the buffer area in the same direction parses, generate port data send pointer chained list the step of and it is subsequent
The step of.
As an improvement scheme, the system also includes：
Second packet sending module, for the size priority and port data transmission pointer according to residual storage capacity
Chained list delivers a packet to corresponding port buffer.
As an improvement scheme, the resolve packet module specifically includes：
Second obtains module, for by parsing to input order and agreement, formation rule to obtain each data
The corresponding instance number of packet, the rule comprising port numbers, polymerization group number, instance number, vlan number, No. QINQ and link direction it
Between relationship；
Aggregation group determining module, for determining corresponding to each example for sending the aggregation group of data packet；
Port determining module, for being determined for sending data packet in aggregation group according to the balanced rule of traffic load
Corresponding ports.
As an improvement scheme, it is described first acquisition module specifically includes：
Module is pre-established, the corresponding relationship between port and link direction for pre-establishing；
Target MAC (Media Access Control) address parsing module is obtained for carrying out purpose MAC parsing to the data packet in the reception buffer area
It obtains to the relationship between port, purpose MAC and link direction.
In embodiments of the present invention, the data packet that each optical network unit ONU is sent, and the data packet that will be received are received
It is temporarily stored in preconfigured reception buffer area；The relationship between port, purpose MAC and link direction is obtained, by the reception
Belong to data packet unloading in the same direction in buffer area in corresponding buffer area in the same direction；To the data packet in the buffer area in the same direction into
Row parsing generates port data and sends pointer chained list；Pointer chained list is sent according to the port data of generation, it will be described in the same direction
Data packet in buffer area is sent in corresponding port buffer, thus realize link loop free, load balancing to multiterminal
Mouth sends data packet, and when a certain link breaks down, other links provide backup, improves the transmission reliability and hair of data message
Efficiency is sent, while also solving video content Caton phenomenon, provides better service for user.
Detailed description of the invention
Fig. 1 is the implementation flow chart of the port data packet transmission method provided by the invention based on GPON system；
Fig. 2 is the link structure schematic diagram of OLT provided by the invention；
Fig. 3 is that data packet provided by the invention sends schematic diagram；
Fig. 4 is the implementation flow chart that the data packet provided by the invention in the buffer area in the same direction is parsed；
Fig. 5 is the structural block diagram of the port data packet dispatching system provided by the invention based on GPON system.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the implementation flow chart of the port data packet transmission method provided by the invention based on GPON system,
Specifically include following step：
In step s101, the data packet that each optical network unit ONU is sent is received, and the data packet received is kept in
In preconfigured reception buffer area.
In step s 102, framework is built according to network organizing and source MAC learns, obtain port, purpose MAC and chain
Relationship between the direction of road will belong to data packet unloading in the same direction in corresponding buffer area in the same direction in the reception buffer area.
In this step, buffer area in the same direction can be configured according to practical situation, be generally divided into according to service content
Both direction or four direction or eight directions etc., herein with both direction, that is, exist two buffer areas in the same direction for said
It is bright.
Wherein, received data packet is stored in and receives buffer area, according to the aggregate command inputted in the page, establish polymerization
Corresponding relationship between group, port and link direction analyzes the target MAC (Media Access Control) address of received data packet, finds MAC purpose
Then the data packet of the same direction is stored in buffer area in the same direction by the relationship between address, port, aggregation group and link direction；
The aggregate command can use following orders：
Interface interface-number
Port-group port-group–number
Interface aggregate-port port-number
Aggregate-port load-balance { dst-mac ︱ src-mac ︱ ip }.
In step s 103, by being parsed to input order and agreement, formation rule, and to the buffer area in the same direction
The frame originating point information of the data frame of interior data packet and the header information of IP datagram are parsed, and are generated port data and are sent pointer
Chained list, the port data send pointer chained list include data frame first address, data frame length, next data frame header addresses and
Relationship between sending port.
In this step, in buffer area in the same direction, take out the mac frame head of data packet in mac controller, according to VLAN,
Corresponding relationship between double layer VLAN and spanning-tree instance, to VLAN, double layer VLAN, the source MAC in the mac frame head of data packet
Location is analyzed, and the source IP address of data packet head, purpose IP address are analyzed in CPU in the packet header IP for taking out data packet,
According to the corresponding relationship between VLAN, double layer VLAN and Multiple Spanning Tree Instance, load balancing mode in aggregation group establishes port number
According to pointer chained list is sent, the data packet in buffer area in the same direction is sent in port buffer.
Wherein, buffer area in the same direction uses two-port RAM structure, and capacity controllable sends data pointer chained list handle according in the same direction
Batch data is transmitted to port buffer, port data send pointer list structure by data frame header addresses, data frame length,
Relationship between next frame data frame header addresses and sending port.
In step S104, pointer chained list is sent according to the port data of generation, it will be in the buffer area in the same direction
Data packet is sent in corresponding port buffer；
In this embodiment, between the port between aggregation group and in aggregation group (port number may be two or more)
Be all made of load balancing and mutually redundant strategy, wherein as shown in connection with fig. 2, each OLT device and corresponding interchanger it
Between there are multiple link directions, each link direction has a different aggregation groups, several ports are equipped in aggregation group.
In this step, port buffer uses fifo structure, is sequentially sent to chain road.
In conjunction with shown in Fig. 2 and Fig. 3, Fig. 2 is the link structure of OLT, and Fig. 3 is data packet transmission schematic diagram, wherein：
In Fig. 2, each OLT device corresponds to several OUN, and two service content are connected in each OLT device
Interchanger, i.e. interchanger 1 and interchanger 2, wherein the corresponding link direction of each interchanger, it is therefore, shown in Fig. 2
On schematic diagram, there are two link direction (direction 1 and direction 2), setting (is used respectively there are two aggregation group on each link direction
A and B are indicated), i.e. aggregation group 1 and aggregation group 2 set that there are two ports in each aggregation group；
Fig. 3 shows the corresponding relationship for receiving buffer area, buffer area in the same direction and port buffer, wherein：
Before executing above-mentioned steps S101, corresponding reception buffer area, buffer area in the same direction and port buffering are preset
Area, what is provided in Fig. 3 is the situation of two buffer areas and four ports in the same direction, and the first two port belongs to aggregation group A, latter two end
Mouth belongs to aggregation group B.
In this embodiment, during port buffer sends data, the sky of each port buffer
Not busy memory capacity is monitored；
It is described to described slow in the same direction to the execution of the data packet in the buffer area in the same direction is delivered to from the reception buffer area
The data packet rushed in area is parsed, and the step of port data sends pointer chained list and subsequent step are generated.
Wherein, pointer chain is sent when being parsed to the data packet for being newly stored in buffer area in the same direction and establish new port data
After table, when data packet is sent to port buffer from buffer area in the same direction, according to the size priority of residual storage capacity and end
Mouth data send pointer chained list and are sent, i.e., its priority of the bigger port buffer of residual storage capacity is higher, according to this
A sequence sends pointer chained list in combination with above-mentioned port data and carries out transmission data；In this embodiment, port data is sent
The structure of pointer chained list is as shown in the table：
| First address | Frame length | Next frame first address | Port |
The data for forming port numbers 1 send pointer chained list, and the data of port numbers 2 send pointer chained list, and form port
The data of number n send pointer chained list.
As shown in figure 4, the step of parsing to the data packet in the buffer area in the same direction specifically includes following step：
In step s 201, by being parsed to input order and agreement, formation rule, and obtain each data packet
Corresponding instance number, and determine that, for sending the aggregation group of data packet corresponding to each example, the rule includes end
Slogan, polymerization group number, instance number, vlan number, No. QINQ relationship between link direction.
In this step, which is that the rule pre-established uses this then during actual resolve packet
Rule parses data packet, particularly belongs to that instance number to obtain the data packet, and learn that the data packet passes through that
A aggregation group carries out data transmission, wherein there are two realize in the case of aggregation group for this situation；
Its concrete implementation process is：Using the priority vector of CIST2, { root path is opened outside CIST root bridge ID, CIST
Pin, the domain CIST root bid, CIST inner track expense, CIST specify bridge BID, CIST that aggregation group PID, CIST is specified to receive polymerization
Group PID and the priority vector of MSTI1 example { domain MSTI root bid, MSTI inner track expense, MSTI specify bridge BID, MSTI
Specified aggregation group PID, MSTI receive polymerization and rent PID }, generate multiple spanning tree.
In step S202, according to the balanced rule of traffic load, pair for sending data packet is determined in aggregation group
Answer port.
In this embodiment, after determining that data packet carries out data transmission by that aggregation group, it is thus necessary to determine that data packet
Data transmission is carried out by that port in aggregation group, specific implementation is according to the balanced rule of above-mentioned traffic load, wherein should
Traffic load equilibrium rule is specially：
(1) source IP address and VLAN operation；
(2) purpose IP address and VLAN operation；
(3) source IP address and purpose IP address is different and VLAN operation；
(4) source MAC and VLAN operation；
(5) target MAC (Media Access Control) address and VLAN operation；
(6) source MAC and target MAC (Media Access Control) address and VLAN operation；
One of operation rule is chosen, with the sending port of HASH algorithms selection aggregated links, details are not described herein,
But the limitation present invention is not had to.
The transmission link of no aggregation group divided can be used down as another specific implementation of the invention
The mode of stating realizes the determination of example and the determination of link：Using the priority vector of CIST1 { outside CIST root bridge ID, CIST
Root path cost, the domain CIST root bid, CIST inner track expense, CIST specify bridge BID, CIST designated port PID, and CIST connects
Receiving end mouth PID } and MSTI1 example priority vector the domain MSTI root bid, MSTI inner track expense, MSTI specify bridge BID,
MSTI designated port PID, MSTI receiving port PID }, generate multiple spanning tree.
Wherein, for there is polymerization to indicate and without the spanning tree order that polymerization indicates, can realize using following programs：
Spanning-tree
Spanning-tree mode mstp
Spanning-tree mode mstp instance instance-number VLAN vlan-number
Spanning-tree mode mstp instance instance-number port-
prioritypriority
Spanning-tree mode mstp instance instance-number LAG-prioritypriority
It is above-mentioned only to provide one of implementation, herein not to limit the present invention.
In embodiments of the present invention, when link works normally in aggregation group, load balancing is realized by HASH algorithm, works as chain
It when the failure of road, is mutually backups, continues as user and service is provided；When link is normal between aggregation group, realize that load is equal by example
Weighing apparatus, when link failure, is mutually backups, and continues as user and provides service, to realize the double copies of link.
For ease of description, following to provide concrete implementation example in conjunction with shown in Fig. 2 and Fig. 3：
According to group-network construction, the port the GPON system OLT port 1- 4 connects interchanger 1, is defined as link direction 1, GPON system
The system port the OLT port 5- 8 connects interchanger 2, is defined as link direction 2.Port 1 and port 2 polymerize, and are defined as aggregation group 1；End
Mouth 3 and port 4 polymerize, and are defined as aggregation group 2；Port 5 and port 6 polymerize, and are defined as aggregation group 3；Port 7 and port 8 polymerize,
It is defined as aggregation group 4.
According to aggregate command, make port 1, port 2 is defined as aggregation group 1；Make port 3, port 4 is defined as aggregation group 2.
GPON system OLT and interchanger 1 run aggregation protocol, make the port 1 of OLT, port 2, port 3, pair of port 4 and interchanger 1
Port is answered to polymerize respectively.
In port 1, load balancing, input load equalization command Aggregate-portload- are carried out between port 2
balance{ip}
The IP address and vlan number of terminal carry out HASH operation, and selection port sends data.
Spanning-Tree Protocol Spanning-tree is opened, Spanning-tree mode mstp runs Multiple Spanning Tree Protocol,
Spanning-tree mode mstp instance instance-number1VLANvlan-number VLAN1-
VLAN1-VLAN500 is mapped onto example 1, Spanning-treemode mstp instance instance- by VLAN500
VLAN501-VLAN1000 is mapped onto example 2 by number2VLAN vlan-numberVLAN501-VLAN1000；
Spanning-tree modemstp instance instance-number1LAG1-priority priority 16,
Spanning-tree mode mstp instance instance-number1LAG2-prioritypriority 4096,
Spanning-tree mode mstp instance instance-number2LAG1-priority priority 4096,
Spanning-tree mode mstp instanceinstance-number2LAG2-priority priority 16,
Example 1 is 16 in the priority number of aggregation group 1, and example 1 is 4096 in the priority number of aggregation group 2, and example 1 is poly-
It is combined 1 priority height.
Example 2 is 4096 in the priority number of aggregation group 1, and example 2 is 16 in the priority number of aggregation group 2, and example 2 is poly-
It is combined 2 priority height.
After running more example Spanning-Tree Protocols, the priority vector { outside CIST root bridge ID, the CIST root road of CIST2 is used
Diameter expense, the domain CIST root bid, CIST inner track expense, CIST specify bridge BID, CIST that aggregation group PID, CIST is specified to receive
Aggregation group PID } and MSTI1 example priority vector the domain MSTI root bid, MSTI inner track expense, MSTI specify bridge BID,
MSTI specifies aggregation group PID, MSTI to receive polymerization and rent PID }, carry out priority vector comparison.Establish NNI port numbers, aggregation group
Number, spanning-tree instance number, vlan number, No. QINQ, the relationship between link direction.Link under normal circumstances, example 1 is corresponding
Data packet by aggregation group 1 send, the corresponding data packet of example 2 by aggregation group 2 send.Data packet is in aggregation group 1,2
Between realize load sharing, load sharing is realized in aggregation group inner port 1 and port 2, and load sharing is realized in port 3 and port 4.
After OLT receives data packet, it is temporarily stored into and receives buffer area, analyze the target MAC (Media Access Control) address of data packet, find purpose
Data packet is stored in buffer area in the same direction by the corresponding relationship between MAC Address and link direction.Analyze buffer data packet in the same direction
The vlan information of data frame header, such as the vlan number of current data packet is 200,.Vlan number 200 belongs to example 1, current number
It is sent according to Bao Yingcong aggregation group 1, the IP address information and vlan number for then analyzing current data packet again carry out HASH operation, selection
The port of transmission.Then the port for forming current data packet sends pointer chained list.Being stored in the data packet of buffer area in the same direction successively
After analysis, the transmission pointer chained list of port 1-4 is formed, the data packet of buffer area in the same direction is then sent to port buffer, by
Data packet is sent to chain road by port buffer.The capacity of buffer area is controllable in the same direction, according to the free time of port buffer
Capacity determines the quantity for sending data packet.In the same direction buffer data packet only analyzes the information and IP datagram of data frame header
Header information forms port and sends pointer chained list, carries out batch data transmission, makes to send data faster.
When the link of aggregation group 1 breaks down, the data packet of the corresponding data packet of example 1 and example 2 all passes through aggregation group 2
It sends, realizing aggregation group 2 is the warm back-up of aggregation group 1, and is mutually backups.
When 1 middle port of aggregation group, 1 link breaks down, the data packet of aggregation group 1 is all sent from port 2.Realize port 1
It is mutually backups with port 2.
For this structure when link is normal, data packet transmission realizes load sharing, chain between aggregation group in aggregation group
It is all mutually backups between aggregation group in aggregation group when the failure of road, is hot double copies structure, it is relatively reliable.
Fig. 5 shows the structural block diagram of the port data packet dispatching system provided by the invention based on GPON system, in order to
Convenient for explanation, part related to the embodiment of the present invention is only gived in figure.
Port data packet dispatching system based on GPON system includes：
Packet-receiving module 11, the data packet sent for receiving each optical network unit ONU；
Temporary storage module 12, for the data packet received to be temporarily stored in preconfigured reception buffer area；
First obtains module 13, for obtaining the relationship between port, purpose MAC and link direction；
Unloading module 14, for data packet unloading in the same direction will to be belonged in corresponding buffering in the same direction in the reception buffer area
In area；
Resolve packet module 15, for being parsed to the data packet in the buffer area in the same direction；
Pointer chained list generation module 16, for generating port data according to the parsing to the data packet in buffer area in the same direction
Pointer chained list is sent, it includes data frame first address, data frame length, next data frame head that the port data, which sends pointer chained list,
Relationship between portion address and sending port；
First packet sending module 17 will be described same for sending pointer chained list according to the port data of generation
Data packet into buffer area is sent in corresponding port buffer；
Wherein, load balancing and mutually redundant plan are all made of between two ports between aggregation group and in aggregation group
Slightly.
On the basis of the embodiment, the above-mentioned port data packet dispatching system based on GPON system further includes：
Free memory capacity monitoring modular 18 is used for during port buffer sends data, described in each
The free memory capacity of port buffer is monitored；
Execution module 19 is returned to, for holding to the data packet being delivered in the buffer area in the same direction from the reception buffer area
The row data packet in the buffer area in the same direction parses, generate the step of port data sends pointer chained list and after
Continuous step.
Wherein, the second packet sending module 20, for the size priority and port data according to residual storage capacity
Pointer chained list is sent, corresponding port buffer is delivered a packet to.
In embodiments of the present invention, resolve packet module 15 specifically includes：
Second obtains module 21, for obtaining corresponding to each data packet according to the spanning tree rule pre-established
Instance number, the spanning tree rule is comprising port numbers, polymerization group number, instance number, vlan number, No. QINQ between link direction
Relationship；
Aggregation group determining module 22, for determining corresponding to each example for sending the aggregation group of data packet；
Port determining module 23, for being determined for sending data in aggregation group according to the balanced rule of traffic load
The corresponding ports of packet.
In embodiments of the present invention, the first acquisition module 13 specifically includes：
Module 24 is pre-established, the corresponding relationship between port and link direction for pre-establishing；
Target MAC (Media Access Control) address parsing module 25, for carrying out purpose MAC parsing to the data packet in the reception buffer area,
Acquire the relationship between port, purpose MAC and link direction.
Wherein, the function of above-mentioned modules is as recorded in above method embodiment, and details are not described herein.
In embodiments of the present invention, the data packet that each optical network unit ONU is sent, and the data packet that will be received are received
It is temporarily stored in preconfigured reception buffer area；The relationship between port, purpose MAC and link direction is obtained, by the reception
Belong to data packet unloading in the same direction in buffer area in corresponding buffer area in the same direction；To the data packet in the buffer area in the same direction into
Row parsing generates port data and sends pointer chained list；Pointer chained list is sent according to the port data of generation, it will be described in the same direction
Data packet in buffer area is sent in corresponding port buffer, thus realize link loop free, load balancing to multiterminal
Mouth sends data packet, and when a certain link breaks down, other links provide backup, improves the transmission reliability and hair of data message
Efficiency is sent, while also solving video content Caton phenomenon, provides better service for user.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of port data packet transmission method based on GPON system, which is characterized in that the method includes the following steps：
The data packet that each optical network unit ONU is sent is received, and the data packet received is temporarily stored in preconfigured reception
In buffer area；
The relationship between port, purpose MAC and link direction is obtained, data packet in the same direction will be belonged in the reception buffer area and is turned
There are in corresponding buffer area in the same direction；
By parsing to input order and agreement, formation rule parses the data packet in the buffer area in the same direction,
Generate port data and send pointer chained list, the port data send pointer chained list include data frame first address, data frame length,
Relationship between next data frame header addresses and sending port；
Pointer chained list is sent according to the port data of generation, is sent the data packet in the buffer area in the same direction to corresponding
In port buffer；
Wherein, load balancing and mutually redundant strategy are all made of between the port between aggregation group and in aggregation group.
2. the port data packet transmission method according to claim 1 based on GPON system, which is characterized in that the method
It further include following step：
During port buffer sends data, the free memory capacity of each port buffer is supervised
It surveys；
It is described to the buffer area in the same direction to the execution of the data packet in the buffer area in the same direction is delivered to from the reception buffer area
Interior data packet is parsed, and the step of port data sends pointer chained list and subsequent step are generated.
3. the port data packet transmission method according to claim 2 based on GPON system, which is characterized in that the method
It further include following step：
Size priority and port data according to residual storage capacity send pointer chained list, deliver a packet to corresponding end
Mouth buffer area.
4. the port data packet transmission method according to claim 3 based on GPON system, which is characterized in that described to institute
It states the step of data packet in buffer area in the same direction is parsed and specifically includes following step：
By parsing to input order and agreement, formation rule obtains instance number corresponding to each data packet, and really
For sending the aggregation group of data packet corresponding to each fixed example, the rule includes port numbers, polymerization group number, example
Number, vlan number, No. QINQ relationship between link direction；
According to the balanced rule of traffic load, the corresponding ports for sending data packet are determined in aggregation group.
5. the port data packet transmission method according to claim 4 based on GPON system, which is characterized in that the acquisition
The step of relationship between port, purpose MAC and link direction, specifically includes following step：
According to the corresponding relationship between the port and link direction pre-established, the data packet in the reception buffer area is carried out
Purpose MAC parsing, acquires the relationship between port, purpose MAC and link direction.
6. a kind of port data packet dispatching system based on GPON system, which is characterized in that the system comprises：
Packet-receiving module, the data packet sent for receiving each optical network unit ONU；
Temporary storage module, for the data packet received to be temporarily stored in preconfigured reception buffer area；
First obtains module, for obtaining the relationship between port, purpose MAC and link direction；
Unloading module, for data packet unloading in the same direction will to be belonged in corresponding buffer area in the same direction in the reception buffer area；
Resolve packet module, for by being parsed to input order and agreement, formation rule, and to the buffering in the same direction
Data packet in area is parsed；
Pointer chained list generation module, for generating port data transmission and referring to according to the parsing to the data packet in buffer area in the same direction
Needle chained list, it includes data frame first address, data frame length, next data frame header addresses that the port data, which sends pointer chained list,
Relationship between sending port；
First packet sending module, for sending pointer chained list according to the port data of generation, by the buffering in the same direction
Data packet in area is sent in corresponding port buffer；
Wherein, load balancing and mutually redundant strategy are all made of between the port between aggregation group and in aggregation group.
7. the port data packet dispatching system according to claim 6 based on GPON system, which is characterized in that the system
Further include：
Free memory capacity monitoring modular, for delaying during port buffer sends data each port
The free memory capacity for rushing area is monitored；
Execution module is returned to, for being delivered to described in the execution of the data packet in the buffer area in the same direction to from the reception buffer area
Data packet in the buffer area in the same direction is parsed, the step of port data sends pointer chained list and subsequent step are generated
Suddenly.
8. the port data packet dispatching system according to claim 7 based on GPON system, which is characterized in that the system
Further include：
Second packet sending module, for the size priority and port data transmission pointer chain according to residual storage capacity
Table delivers a packet to corresponding port buffer.
9. the port data packet dispatching system according to claim 8 based on GPON system, which is characterized in that the data
Packet analyzing module specifically includes：
Second obtains module, for by parsing to input order and agreement, formation rule to obtain each data packet institute
Corresponding instance number, the rule is comprising port numbers, polymerization group number, instance number, vlan number, No. QINQ between link direction
Relationship；
Aggregation group determining module, for determining corresponding to each example for sending the aggregation group of data packet；
Port determining module, for determining pair for sending data packet in aggregation group according to the balanced rule of traffic load
Answer port.
10. the port data packet dispatching system according to claim 9 based on GPON system, which is characterized in that described
One acquisition module specifically includes：
Module is pre-established, the corresponding relationship between port and link direction for pre-establishing；
Target MAC (Media Access Control) address parsing module is obtained for carrying out purpose MAC parsing to the data packet in the reception buffer area
Relationship between port, purpose MAC and link direction.
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