CN214045898U - I-PON system with UDP tunnel constructed by SDN switch - Google Patents
I-PON system with UDP tunnel constructed by SDN switch Download PDFInfo
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- CN214045898U CN214045898U CN202023020211.1U CN202023020211U CN214045898U CN 214045898 U CN214045898 U CN 214045898U CN 202023020211 U CN202023020211 U CN 202023020211U CN 214045898 U CN214045898 U CN 214045898U
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Abstract
The utility model discloses a I-PON system with UDP tunnel that utilizes the SDN switch to construct, this I-PON system divide into business and management system end, network end, light distribution network end and user side, the network end contains metropolitan area network, light line terminal, fibre channel switch, fiber amplifier and SDN switch, wherein, metropolitan area network and business and management system end communication connection, metropolitan area network, light line terminal, light distribution network end and user side communication connection in proper order, the fibre channel switch respectively with business and management system end, metropolitan area network communication connection, the fiber channel switch, fiber amplifier, light distribution network end and user side communication connection in proper order, the SDN switch is connected with metropolitan area network communication and is used for constructing the UDP tunnel. The utility model discloses a have the jam that reduces PON uplink and downlink data transmission channel, improve video service quality, ten thousand million downstream bandwidth resources can make full use of's advantage simultaneously.
Description
Technical Field
The utility model relates to an I-PON system especially involves an I-PON system with UDP tunnel.
Background
According to the national standard, in an I-PON networking scheme, an I-PON dual-fiber three-wave networking scheme is adopted, the scheme adopts dual-fiber home entry, one fiber is used for gigabit IP broadcast transmission, and the other fiber is used for PON uplink and downlink data transmission. After being received by the I-PON optical receiver, the tera IP broadcast signals are accessed into a home network through a tera or gigabit network interface or through data signals received by an ONU (optical network unit) and are provided for equipment such as a set top box, a PC (personal computer) terminal and a convergence terminal.
Currently, in the overall structure of the existing network I-PON system, live broadcast services are carried by a gigabit system (VOD on demand services are not enabled in the I-PON system), OTT on demand services are carried by a PON (OLT-OUN), and an EPON/GPON data network carries all bidirectional services, including broadband data services and video on demand services.
The advantages of the existing architecture:
1. deployment is relatively simple.
2. The requirements of the existing program on demand with smaller code rate and broadband internet access are basically met.
3. The ten-thousand-million IP broadcast and PON uplink and downlink data transmission channels are completely separated, and the interference among multiple wavelengths is avoided.
But the prior architecture also has obvious problems:
1. the average user bandwidth of the OLT-ONU channels is only 15Mbps, the Internet service and the video on demand service share the bandwidth, and the network can be congested at the peak time, so that the video smoothness cannot be ensured.
2. The data network of broadcasting and television is a network constructed for meeting the requirement of internet broadband service, and aims to meet the requirement of data service, and the video service and the data service have great difference and completely different requirements on QoS (including network delay, jitter and packet loss), so that the video service using the data network faces great challenges and the quality is difficult to ensure.
3. At present, ten-thousand-megabyte downlink bandwidth is only used for broadcasting programs, the actual used bandwidth is only less than 3Gbps, and the residual 7Gbps bandwidth is idle, so that waste is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an I-PON system with UDP tunnel that utilizes the SDN switch to construct, can transfer some OTT on demand business to and bear by ten thousand million systems.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an I-PON system having UDP tunnels constructed using SDN switches, the I-PON system is divided into a service and management system end, a network end, an optical distribution network end and a user side, the network end comprises a metropolitan area network, an optical line terminal, a fiber channel switch, a fiber amplifier and an SDN switch, the optical network system comprises a metropolitan area network, an optical distribution network end, an optical fiber channel switch, an optical fiber amplifier, an optical distribution network end and a user side, wherein the metropolitan area network is in communication connection with the service and management system end, the optical line terminal is arranged between the metropolitan area network and the optical distribution network end, the metropolitan area network, the optical fiber terminal, the optical distribution network end and the user side are in communication connection in sequence, the optical fiber channel switch is respectively in communication connection with the service and management system end and the metropolitan area network, the optical fiber amplifier is arranged between the optical fiber channel switch and the optical distribution network end, the optical fiber channel switch, the optical fiber amplifier, the optical distribution network end and the user side are in communication connection in sequence, and the SDN switch is in communication connection with the metropolitan area network and used for building a UDP tunnel.
Furthermore, the service and management system end comprises a broadcast and television cable television system, a video on demand system, a management system, an application front end and the internet, wherein the broadcast and television cable television system is in communication connection with the optical fiber channel switch, and the video on demand system, the management system, the application front end and the internet are in communication connection with a metropolitan area network respectively.
Further, the optical distribution network end comprises a plurality of optical splitters.
Further, the user side comprises a plurality of user terminals, each of which comprises an optical receiver, a gateway and an application device.
Furthermore, the communication between the fiber channel switch and the metropolitan area network is unidirectional data transmission, and data is transmitted from the metropolitan area network to the fiber channel switch.
Further, the communication between the SDN switch and the metropolitan area network is bidirectional data transmission.
Still further, the fibre channel switch is an SDN switch.
The utility model has the advantages that:
the utility model provides an I-PON system with UDP tunnel that utilizes SDN switch to construct, through designing fibre channel switch and metropolitan area network communication connection, and increasing an SDN switch, and SDN switch and metropolitan area network communication connection, make establish UDP tunnel in I-PON system, thereby realized OTT on-demand business can get into fibre channel switch from metropolitan area network, thereby get into the ten thousand million IP broadcast data transmission passageway, and once OTT on-demand business can walk ten thousand million IP broadcast data transmission passageway and can solve PON uplink and downlink data transmission passageway (OLT-ONU passageway) jam, the video service quality is relatively poor, and the shortcoming of the ten thousand million downstream bandwidth resource waste, have reduced PON uplink and downlink data transmission passageway (OLT-ONU passageway) jam, can improve the video service quality after the bandwidth increases, and simultaneously ten-thousand-million downlink bandwidth resources are fully utilized.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
The reference numbers in the figures are: 1. a metropolitan area network; 2. a fibre channel switch; 3. an optical fiber amplifier; 4. an optical line terminal; 5. a light splitter; 6. an optical receiver; 7. a gateway; 8. an application device; 9. an SDN switch; 10. a video-on-demand system; 11. broadcast and television cable television systems; 12. a management system; 13. applying a front end; 14. an internet; 20. a user terminal.
Detailed Description
The present invention is described below with reference to the accompanying drawings, and the specific embodiments described herein are only used for illustrating and explaining the present invention, and are not used for limiting the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall into the protection scope of the present invention without departing from the design spirit of the present invention.
As shown in fig. 1, the I-PON system of this embodiment is divided into a service and management system end, a network end, an optical distribution network end, and a user side. The service and management system end comprises a radio and television cable television system 11(CATV), a video on demand system 10(VoD), a management system 12, an application front end 13 and the Internet 14. The network end comprises a metropolitan area network 1, an optical line terminal 4(OLT), a fiber channel switch 2, a fiber amplifier 3 and an SDN switch 9, wherein the fiber channel switch 2 is the SDN switch. The optical distribution network end comprises a plurality of mutually independent optical splitters 5; the user side comprises a plurality of user terminals 20, each user terminal 20 comprises an optical receiver 6, a gateway 7 and an application device 8, the application device 8 comprises a telephone, a television and the like, and the optical receiver 6 is an ONU + I-PON optical receiver.
The I-PON system of this embodiment has two data transmission channels, one is a gigabit IP broadcast data transmission channel, and the other is a PON uplink and downlink data transmission channel (OLT-ONU channel, gigabit bandwidth), where the gigabit IP broadcast data transmission channel is a unidirectional downlink data transmission channel, and the PON uplink and downlink data transmission channel is a bidirectional uplink and downlink data transmission channel.
The components of the tera IP broadcast data transmission channel comprise: a radio and television cable television system 11(CATV), a fiber channel switch 2, a fiber amplifier 3, a plurality of splitters 5, and a plurality of user terminals 20. The connection mode is as follows: a radio and television system 11(CATV), a fiber channel switch 2, a fiber amplifier 3, a plurality of splitters 5, and a plurality of user terminals 20 are sequentially connected in communication. The data transmission direction is: a radio and television cable television system 11(CATV), a fiber channel switch 2, a fiber amplifier 3, a plurality of splitters 5, and a plurality of user terminals 20 perform unidirectional transmission in sequence.
The PON uplink and downlink data transmission channel comprises the following components: a video on demand system 10(VoD), a management system 12, an application front end 13, the internet 14, a metropolitan area network 1, an optical line terminal 4, a plurality of optical splitters 5, and a plurality of user terminals 20. The connection mode is as follows: the VoD system 10(VoD), the management system 12, the application front end 13, and the internet 14 are respectively in communication with the metropolitan area network 1 (edge router), the metropolitan area network 1, the optical line terminal 4, the optical splitters 5, and the user terminals 20 are in communication connection in sequence, the optical line terminal 4 is one-to-many with respect to the optical splitters 5, and the optical splitters 5 are one-to-many with respect to the optical receiver 6. The data transmission direction is: the data transmission system comprises a metropolitan area network 1, an optical line terminal 4, a plurality of optical splitters 5 and a plurality of user terminals 20.
In the I-PON system of this embodiment, the fiber channel switch 2 is further in communication connection with the metropolitan area network 1, and the data transmission direction is unidirectional transmission from the metropolitan area network 1 to the fiber channel switch 2, so that the OTT on-demand service has a link condition that the OTT on-demand service can enter the fiber channel switch 2 from the metropolitan area network 1, thereby entering the ten-gigabit IP broadcast data transmission channel.
In the I-PON system of this embodiment, the SDN switch 9 is further in communication connection with the metropolitan area network 1, a data transmission direction is that the metropolitan area network 1 and the SDN switch 9 perform bidirectional transmission, the SDN switch 9 mainly functions as a proxy gateway, a packet header format of a data packet is modified, a UDP tunnel is constructed in the I-PON system, the UDP tunnel is used to transmit the data packet, data transmitted by using the UDP tunnel may be data frames or packets (such as a TCP protocol) of different protocols, the UDP tunnel protocol re-encapsulates the data frames or packets of the TCP protocol in a new packet header for transmission, the new packet header provides routing information, and an OTT on-demand service may enter the fiber channel switch 2 from the metropolitan area network 1 through the routing information, thereby entering a gigabit IP broadcast data transmission channel.
In summary, the I-PON system of the present embodiment is designed to be communicatively connected to the metropolitan area network 1 through the fibre channel switch 2, and one SDN switch 9 is added, and the SDN switch 9 is in communication connection with the metropolitan area network 1, so that a UDP tunnel is constructed in the I-PON system, thereby realizing that OTT on demand service can enter the optical fiber channel exchanger 2 from the metropolitan area network 1, thereby entering the ten-gigabit IP broadcast data transmission channel, once the OTT on-demand service can go through the ten-gigabit IP broadcast data transmission channel, the problem of congestion of the PON uplink and downlink data transmission channels (OLT-ONU channels) and poor video service quality can be solved, the method has the advantages that congestion of uplink and downlink data transmission channels (OLT-ONU channels) of the PON is reduced, video service quality can be improved after the bandwidth is increased, and ten-thousand-megabyte downlink bandwidth resources are fully utilized.
It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. An I-PON system with UDP tunnel constructed by SDN switch, the I-PON system is divided into service and management system end, network end, light distribution network end and user side, characterized in that: the network end comprises a metropolitan area network (1), an optical line terminal (4), a fiber channel switch (2), a fiber amplifier (3) and an SDN switch (9), the optical network system comprises a metropolitan area network (1), an optical line terminal (4), a fiber channel switch (2), an optical amplifier (3), an optical distribution network end and a user side, wherein the metropolitan area network (1) is in communication connection with a service and management system end and the optical distribution network end, the optical line terminal (4), the optical distribution network end and the user side are in communication connection in sequence, the fiber channel switch (2) is in communication connection with the service and management system end and the metropolitan area network (1) respectively, the optical amplifier (3) is arranged between the fiber channel switch (2) and the optical distribution network end, the fiber channel switch (2), the optical amplifier (3), the optical distribution network end and the user side are in communication connection in sequence, and an SDN switch (9) is in communication connection with the metropolitan area network (1) and is used for constructing a UDP tunnel; the service and management system end comprises a broadcast and television cable television system (11), a video on demand system (10), a management system (12), an application front end (13) and the Internet (14), wherein the broadcast and television cable television system (11) is in communication connection with the optical fiber channel switch (2), and the video on demand system (10), the management system (12), the application front end (13) and the Internet (14) are in communication connection with the metropolitan area network (1) respectively; the optical distribution network end comprises a plurality of optical splitters (5).
2. The I-PON system with UDP tunnels established with an SDN switch according to claim 1, wherein: the user side comprises a plurality of user terminals (20), each user terminal (20) comprising an optical receiver (6), a gateway (7) and an application device (8).
3. The I-PON system with UDP tunnels established with an SDN switch according to claim 1, wherein: the communication between the optical fiber channel switch (2) and the metropolitan area network (1) is unidirectional data transmission, and data are transmitted from the metropolitan area network (1) to the optical fiber channel switch (2).
4. The I-PON system with UDP tunnels established with an SDN switch according to claim 1, wherein: the communication between the SDN switch (9) and the metropolitan area network (1) is bidirectional data transmission.
5. I-PON system with UDP tunnels built with SDN switches according to any of claims 1-4, characterized in that: the fibre channel switch (2) is an SDN switch.
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| CN202023020211.1U CN214045898U (en) | 2020-12-15 | 2020-12-15 | I-PON system with UDP tunnel constructed by SDN switch |
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| CN202023020211.1U CN214045898U (en) | 2020-12-15 | 2020-12-15 | I-PON system with UDP tunnel constructed by SDN switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113965783A (en) * | 2021-09-14 | 2022-01-21 | 广西广播电视信息网络股份有限公司 | Method for realizing VOD playing of ten-gigabit-capable channel by using I-PON standard |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113965783A (en) * | 2021-09-14 | 2022-01-21 | 广西广播电视信息网络股份有限公司 | Method for realizing VOD playing of ten-gigabit-capable channel by using I-PON standard |
| CN113965783B (en) * | 2021-09-14 | 2024-05-31 | 广西广播电视信息网络股份有限公司 | Method for realizing VOD playing millions of channels by using I-PON standard |
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