WO2011093593A2 - Commutateur ethernet - Google Patents

Commutateur ethernet Download PDF

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Publication number
WO2011093593A2
WO2011093593A2 PCT/KR2010/009193 KR2010009193W WO2011093593A2 WO 2011093593 A2 WO2011093593 A2 WO 2011093593A2 KR 2010009193 W KR2010009193 W KR 2010009193W WO 2011093593 A2 WO2011093593 A2 WO 2011093593A2
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WO
WIPO (PCT)
Prior art keywords
signal
signals
service
internet
ethernet
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Application number
PCT/KR2010/009193
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English (en)
Korean (ko)
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WO2011093593A3 (fr
Inventor
이은철
이창희
Original Assignee
인텔라 주식회사
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Publication of WO2011093593A2 publication Critical patent/WO2011093593A2/fr
Publication of WO2011093593A3 publication Critical patent/WO2011093593A3/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches

Definitions

  • the present invention relates to an Ethernet switch, and more particularly, one or more Internet signals and one or more service signals received from an external network are respectively multiplexed for each subscriber station to be transmitted, and the multiplexed signals are gigabit Ethernet frames.
  • the present invention relates to an Ethernet switch that is converted to and transmitted to the subscriber station.
  • the current communication technology environment is transformed into an environment in which anytime, anywhere, anytime device can be contacted and can perform creative collaboration through wired / wireless convergence, telecommunication broadcasting convergence, IP technology (telephony) expansion, and the emergence of integrated communication. have.
  • the user communication environment of the company is unable to work at the desired time due to the delayed collaboration that can be caused by the increasing number of communication channels that individuals encounter, the increased mobility of workers, and the reduced probability of communication with the desired person in one attempt.
  • the number of finishes is increasing.
  • the paradigm of communication technology to improve the above-mentioned environment is evolving into ubiquity, which is a human-centered computer environment, due to convergence of networks, services, and devices based on All-IP.
  • Ethernet switch used at the edge of the network is composed of a system for multiplexing multiple 10 / 100Mbps ports into one gigabit port and transmitting them to one gigabit port.
  • Ethernet switch can exist one or more per each floor of the building, the number of installation can be variously configured according to the size of the building, the internal shape and the number of Internet users.
  • the network configuration in most buildings has the form described above and provides only Internet services.
  • the present invention has been made to improve the prior art as described above, and multiplexing one or more service signals compressed at a predetermined compression ratio by one or more Internet signals and corresponding ports, respectively, and multiplexing the multiplexed signals by a Gigabit Ethernet frame. It is an object of the present invention to provide an Ethernet switch to convert to the outside through the corresponding port.
  • an Ethernet switch is to multiplex one or more service signals compressed at a predetermined compression ratio by one or more Internet signals and corresponding ports, respectively. And converting the multiplexed signal into a gigabit Ethernet frame and transmitting it externally through each corresponding port.
  • the Ethernet switch for receiving one or more service signals or one or more Internet signals in the form of optical signals from the outside through the optical cable;
  • a twisted pair interface matching unit configured to receive at least one service signal or at least one internet signal through a twisted pair;
  • a switch processor configured to perform packet processing and forwarding of signals to provide Gigabit Ethernet standard interfacing;
  • a data processor which compresses the at least one service signal and the at least one internet signal, matches a gigabit Ethernet frame, and digitally processes the compressed data;
  • a control processor for controlling operations of the data processor and the switch processor.
  • the optical cable interface matching unit of the Ethernet switch converts the optical signal into an electrical signal when the optical signal received from the outside through the optical cable includes an Internet signal of a Gigabit Ethernet standard transmission standard.
  • the Internet signal is extracted, and the Internet signal is converted into a Gigabit Ethernet frame of the IEEE802.3 GMII standard through a Gigabit PHY module and transmitted to the data processor.
  • the optical cable interface matching unit of the Ethernet switch if the optical signal received from the outside through the optical cable includes a service signal that is not a gigabit Ethernet standard transmission standard, the optical signal to the data processing unit It is characterized by bypass (bypass).
  • the twisted pair interface interface of the Ethernet switch includes a WAN port, when receiving the Internet signal through the WAN port, the Internet signal through the gigabit PHY module IEEE802.3 GMII standard It converts to a gigabit Ethernet frame of the data transmission unit through a corresponding port.
  • the twisted pair interface interface of the Ethernet switch includes a LAN port, when receiving the Internet signal of the Gigabit Ethernet standard transmission standard through the LAN port, the Internet of the Gigabit Ethernet standard transmission standard The signal is processed to conform to the IEEE802.3 GMII standard and is transmitted to the data processor through the corresponding port.
  • the data processing unit of the Ethernet switch receives an optical signal including a service signal that is not a gigabit Ethernet standard transmission standard from the optical cable interface matching unit, the serial data of the optical signal in parallel
  • An Internet signal and a corresponding port for converting the data into data, separating the service signal from the optical frame of the optical signal, and compressing each of the separated service signals with a predetermined compression ratio to receive the compressed service signal from the switch processor.
  • After multiplexing for each of the multiplexed service signal and the Internet signal data to the Gigabit Ethernet frame is characterized in that the transmission to the subscriber terminal through each corresponding port.
  • the switch processing unit of the Ethernet switch by receiving a gigabit Ethernet frame in parallel through a GMII interface, extracts the frame for the 8-bit stream of the received gigabit Ethernet frame and CRC (Cyclic Redendancy Check), if there is no error, performs packet recognition classification, address lookup and forwarding, and traffic management functions for Layer2 switching of the extracted packets, and performs a fast Ethernet interface through the MII interface with reference to the selected forwarding table. It is characterized by transmitting a frame to another frame or another adjacent Gigabit Ethernet interface.
  • CRC Cyclic Redendancy Check
  • the Ethernet switch separates the Gigabit Ethernet frame received from the subscriber terminal into one or more Internet signals and one or more compressed service signals, the one or more Internet signals are converted to the MII interface to the external
  • Each of the one or more compressed service signals is decompressed and restored to the original service signal, and the one or more service signals of the same type are combined with each other and then multiplexed. It transmits to the external communication network through the service signal port.
  • the service signal of the Ethernet switch is any one of a mobile communication signal, broadcast signal, GPS signal, sensing data signal, and the Internet signal
  • the Ethernet switch is the restored one or more services Among the signals, the mobile communication signals are combined with the mobile communication signals, the broadcast signals are combined with the broadcast signals, the GPS signals are combined with the GPS signals, and the sensing data signals are combined with the sensing data signals.
  • Ethernet switch of the Ethernet switch compensates the system characteristics of the combined service signal through a channel-specific digital filter or AGC function, and the multiplexed service signal is mapped for each service It is characterized by transmitting to the external communication network for each service through the framer.
  • Ethernet switch of the present invention it is possible to obtain the effect of improving the transmission speed of the physical layer while maintaining the basic frame and frame specifications of the fast Ethernet switching device.
  • Ethernet switch of the present invention by compressing or restoring various wired / wireless service signals such as internet signals, mobile communication signals, broadcast signals, GPS signals, and sensing data signals at a predetermined compression ratio, The effect of transmitting various signals can be obtained.
  • wired / wireless service signals such as internet signals, mobile communication signals, broadcast signals, GPS signals, and sensing data signals at a predetermined compression ratio
  • FIG. 1 is a block diagram showing the configuration of an Ethernet switch according to an embodiment of the present invention.
  • Figure 2 is a block diagram showing the configuration of an optical cable interface matching unit 110 according to an embodiment of the present invention.
  • Figure 3 is a block diagram showing the configuration of the twisted pair interface interface according to an embodiment of the present invention.
  • FIG. 4 is a block diagram illustrating a signal forwarding processing function of a data processing unit according to an embodiment of the present invention.
  • FIG. 5 is a block diagram illustrating a signal reverse processing function of a data processing unit according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing the configuration of a switch processing unit 140 according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing a configuration of a control processing unit according to an embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of an Ethernet switch according to an embodiment of the present invention.
  • An Ethernet switch includes an optical cable interface matching unit 110, a twisted pair interface matching unit 120, a data processing unit 130, a switch processing unit 140, and a control processing unit 150.
  • the optical cable interface matching unit 110 receives one or more service signals or one or more internet signals in the form of optical signals from the outside through the optical cable.
  • the service signal may be implemented as any one of a mobile communication signal, a broadcast signal, a GPS signal, a sensing data signal, and an internet signal.
  • the twisted pair interface matching unit 120 receives one or more service signals or one or more internet signals from the outside through the twisted pair.
  • the data processor 130 compresses the at least one service signal and the at least one internet signal, matches a gigabit Ethernet frame, and digitally processes the compressed data.
  • the switch processor 140 performs packet processing and forwarding of signals to provide Gigabit Ethernet standard interfacing.
  • the control processor 150 controls the operations of the data processor 130 and the switch processor 140.
  • FIG. 2 is a block diagram illustrating a configuration of an optical cable interface matching unit 110 according to an embodiment of the present invention.
  • the optical cable interface matching unit 110 includes an optical connector 111, an extended optical transceiver 112, an optical transceiver 113 and 114, and a 1G PHY module 115.
  • the optical cable interface matching unit 110 extracts the Internet signal by converting the optical signal into an electrical signal and extracts the Internet signal. It can be converted into a Gigabit Ethernet frame of the IEEE802.3 GMII standard through a gigabit PHY module and transmitted to the data processing unit.
  • the optical cable interface matching unit 110 may bypass the optical signal to the data processing unit when the optical signal received from the outside through the optical cable includes a service signal that is not a gigabit Ethernet standard transmission standard. .
  • Functions of the optical cable interface matching unit 110 may be divided into basic functions and extended functions.
  • the basic function of the optical cable interface matching unit 110 refers to a function of processing a signal input to an optical standard interface standard
  • the extended function refers to a repeater function for long distance transmission.
  • the mode of the optical cable interface matching unit 110 may be classified into an Internet transmission mode and a service transmission mode according to the input signal.
  • the Internet mode of the optical cable interface matching unit 110 refers to a mode that is activated when a signal of the Gigabit Ethernet standard transmission standard is input.
  • the service transmission mode of the optical cable interface matching unit 110 refers to a mode that operates when the input signal is not the Gigabit Ethernet standard transmission standard.
  • the Gigabit Ethernet PHY module 115 may bypass the input signal and transmit it to the data processor 130.
  • the input signal of the service transmission mode may be implemented as a mobile communication signal, broadcast communication signal, GPS, sensing data.
  • the optical connector 111 is connected to an optical cable to receive an optical signal from the outside through the optical cable.
  • the optical transceivers 113 and 114 may convert an optical signal into an electrical signal, transmit the signal in the Gigabit PHY mode when the signal mode is the Internet mode, and bypass the data processor 130 in the service transmission mode.
  • the electrical signal passed through the gigabit PHY module 115 may be input to the data processor 130 according to the GMII standard. In the service transmission mode, the electric signal may be bypassed and input to the data processor.
  • the extended optical transceiver 112 may be implemented to selectively use the wavelength, the transmission speed, and the transmission distance according to the optical standard.
  • FIG. 3 is a block diagram illustrating a configuration of a twisted pair interface matching unit according to an exemplary embodiment of the present invention.
  • Twisted-wire interface matching unit 120 is RJ-45 terminal 121, the first 100M / 1G PHY module 121, the second 100M / 1G PHY module 122, the third 100M / 1G PHY module 123, and fourth 100M / 1G PHY module 124.
  • the RJ-45 terminal 121 may be connected to an external terminal or a network through a UTP cable.
  • the first 100M / 1G PHY module 121 may be connected to the data processor 130 through four ports.
  • the second 100M / 1G PHY module 122 may be connected to the data processor 130 through four ports.
  • the third 100M / 1G PHY module 123 may be connected to the data processor 130 through two ports.
  • the fourth 100M / 1G PHY module 124 may be connected to the switch processor 140 through one port.
  • the twisted pair interface matching unit 120 includes a WAN port, and when receiving an Internet signal through the WAN port, converts the Internet signal into a Gigabit Ethernet frame of the IEEE802.3 GMII standard through a Gigabit PHY module to convert the corresponding port. Through the data processing unit can be transmitted.
  • the twisted pair interface matching unit 120 includes a LAN port, and when the Internet signal of the Gigabit Ethernet standard transmission standard is received through the LAN port, the twisted pair interface matching unit 120 transmits the Internet signal of the Gigabit Ethernet standard transmission standard to the IEEE802.3 GMII standard. The signal may be processed and transmitted to the data processor through the corresponding port.
  • the twisted pair interface matching unit 120 may be classified into a WAN connection mode and a LAN connection mode. That is, when the Internet backbone signal is transmitted or received at 1 Gbps, it may be implemented in WAN connection mode, and when the Internet signal and various services are simultaneously transmitted or received at 1 Gbps, it may be implemented in LAN connection mode.
  • the WAN connection mode In the WAN connection mode, it receives the Internet signal from the WAN connection port and transmits the data to the GMII MAC module 142 of the switch processing unit 140 according to the GMII interface via the gigabit PHY.
  • a signal input to a LAN connection port follows a gigabit physical standard, and the input signal may be input as a gigabit frame in accordance with the Gigabit Ethernet physical standard and the Fast Ethernet signal and various service signals.
  • the signal multiplexed with the Internet and various services inputted through a plurality of LAN connection ports may be transmitted to each gigabit PHY port and processed to comply with the GMII standard, and then the signal may be transmitted to the data processor 130 for each designated port. .
  • the switch processing unit 130 may determine the respective LAN output port of the twisted pair interface matching unit 120 and transmit the port information to the data processing unit 130.
  • the data processor 130 may multiplex the Internet signal and the service signal to be provided, convert the data signal into a Gigabit Ethernet frame, and transmit the Gigabit PHY.
  • Each PHY may convert a signal to meet the physical layer standard and transmit the signal to a port of a signal to be transmitted.
  • the twisted pair interface matching unit 120 may perform basic and extended functions, respectively.
  • the basic function signal may be implemented in the case of transmitting 100m, and the extension function may configure a spare port capable of operating in a repeater mode to transmit 200m by extending the transmission distance to relay a signal except an internet signal. Can be implemented.
  • FIG. 4 is a block diagram illustrating a signal forwarding processing function of a data processing unit according to an embodiment of the present invention.
  • the data processor 130 when the data processor 130 receives an optical signal including a service signal that is not a Gigabit Ethernet standard transmission standard from the optical cable interface matching unit 110, the serial data of the optical signal is paralleled. And convert the data into data and separate the service signals from the optical frames of the optical signals.
  • the data processor 130 compresses each of the separated service signals at a predetermined compression ratio, and multiplexes the compressed service signal from the switch processor by the Internet port and the corresponding port, and then multiplexes the service signal into a gigabit Ethernet frame. And data of the Internet signal may be allocated and transmitted to the subscriber station through each corresponding port.
  • serial data of the service signal received from the optical cable interface matching unit 110 in the form of an optical signal is converted in parallel, and the service signal is separated from the optical frame of the optical signal. can do.
  • the data processor 130 may efficiently use the transmission bandwidth by compressing each service signal of the separated signal. For example, if the sampling rate of the service signal is 100Msps and the digital bit of the signal is 10bit, the transmission rate may be implemented at 1Gbps, and when the compression ratio is set to 2: 1, the 1Gbps signal may be transmitted at 500Mbps. Thus, different service signals can be transmitted at the same time.
  • the data processing unit 130 converts the MII standard into the GMII standard, multiplexes the compressed signal and the Internet signal of each port obtained through the switch processing unit 130, and allocates data to gigabit frames for gigabit transmission. You can send to the port location.
  • FIG. 5 is a block diagram illustrating a signal reverse processing function of a data processing unit according to an embodiment of the present invention.
  • the data processing unit 130 separates the Gigabit Ethernet frame received from the subscriber station into one or more Internet signals and one or more compressed service signals when the signal is reversely processed, and converts the one or more Internet signals into an MII interface to the external Internet. Each can be sent over the network.
  • the data processor 130 decompresses the one or more compressed service signals to restore the original service signal, combines the restored one or more service signals with each other, and multiplexes the corresponding service signals.
  • the signal port allows transmission to an external communication network. That is, among the one or more service signals, the mobile communication signals may be combined with the mobile communication signals, the broadcast signals may be combined with the broadcast signals, the GPS signals may be combined with the GPS signals, and the sensing data signals may be combined with the sensing data signals and transmitted. .
  • the data processor 130 may convert the signal transmitted from each terminal and the access point into the GMII interface in the twisted pair interface matching unit 120 and receive the signals through the corresponding ports.
  • the data processor 130 may separate the LAN signal and the service signals from the signal transmitted to each port through the deframer.
  • the data processor 130 may separate the signal of the service location in the gigabit frame through the reverse process of the framer, and restore the compressed packetized service signal to the original signal by reconstructing the reverse process of the compression process. .
  • the data processing unit 130 first restores the information of the header and changes the information such as compression rate, noise reduction rate, center frequency, and bandwidth change through the restored information. Can be used to restore the original signal. Since the compression ratio may be implemented differently according to the signal characteristics of the service during compression, compression may be performed according to each service. In addition, the restoration can also use each restoration block for each service.
  • the data processor 130 may separate signals for each service and combine the same service signals.
  • the mobile communication signal can be separated from the base station modem because the user can be separated from the signal receiver. Since noise increase and system characteristic deterioration may occur due to service-specific combining and compression, the data processor 130 may compensate for system characteristics by using a digital filter for each channel or performing an AGC function through a digital signal processing function. .
  • the data processor 130 may multiplex each processed service signal through a service mux function.
  • the multiplexed service signal may be processed by the framer to map to respective positions of the already framed framer.
  • the LAN signal processed separately from the service signal may be converted into the MII interface and transferred to the switching processor 140 to aggregate each LAN signal.
  • FIG. 6 is a block diagram showing the configuration of the switch processing unit 140 according to an embodiment of the present invention.
  • the switch processor 140 includes an MII MAC module 141, a GMII MAC module 142, and a switching processor 143.
  • the switch processor 140 may receive and process a gigabit Ethernet frame in parallel through a GMII interface, extract a frame for an 8-bit stream of the received gigabit Ethernet frame, and perform a cyclic redendancy check (CRC) check.
  • CRC cyclic redendancy check
  • the switch processing unit 140 performs packet recognition classification, address lookup and forwarding, and traffic management for Layer 2 switching on the extracted packet if there is no error as a result of the inspection, and performs the MII interface with reference to the selected forwarding table. This allows the frame to be sent to the Fast Ethernet interface or to other adjacent Gigabit Ethernet interfaces.
  • the switch processing unit 140 receives the Ethernet frame from the 1 Gigabit interface in parallel through the GMI interface, extracts the received 8-bit stream by performing frame extraction and CRC (Cyclic Redundancy Check) check on the received 8-bit stream. Packet recognition and classification, address lookup and forwarding, and traffic management for Layer 2 switching can be performed on the packet.
  • the switch processor 140 may transmit the frame to the fast Ethernet interface through the MII interface or the frame to another adjacent 1 Gigabit Ethernet interface with reference to the forwarding table.
  • the switch processing unit 140 receives the Ethernet frame from the fast Ethernet interface in parallel through the MII interface, and performs layer extraction and CRC check on the received bit stream, and if there is no error, the layer 2 is performed on the extracted packet. Packet recognition and classification for switching, address lookup and forwarding, and traffic management can be performed, and a frame can be transmitted to a 1 gigabit interface through the GMII interface with reference to the forwarding table.
  • FIG. 7 is a block diagram showing a configuration of a control processing unit according to an embodiment of the present invention.
  • the control processor 150 includes a program memory 151, a data memory 152, and a system monitor 153.
  • the system control processor of the control processing unit 150 may be driven by a boot loader and an execution program mounted in a program memory, and may exchange system control and status information through the local bus with the system monitoring unit 153,
  • the packet forwarding unit may be initialized and driven by the processing and forwarding unit, and the forwarding table management function and the traffic management function of the Layer 2 function may be performed in association with the data memory.
  • the system monitoring unit 152 monitors the dismount / mounting and failure status of the line media matching unit of the 1 Gigabit Ethernet matching unit, so that a system operator can recover from the failure in the event of a hernia or failure, so that the system operator can recover from the failure. Can provide facts.
  • the system monitoring unit 152 may monitor a failure state of the power supply unit and the blower to automatically switch to a redundant power supply unit and a blower that are redundantly installed when a failure occurs, thereby providing high reliability of the system.
  • system monitoring unit 152 may check the state of the remote device and provide a control signal, and monitor the state of the data processing unit 130 to provide a system operator warning message when an alarm occurs.
  • control processor 150 may perform a function of monitoring and controlling whether an appropriate operation is performed on parameters presented by a user for compression / restore, which is a main function of the data processor 130.
  • Ethernet switch of the present invention it is possible to improve the transmission speed of the physical layer while maintaining the basic frame and frame specifications of the high-speed Ethernet switching device, Internet signals, mobile communication signals, broadcast signals, GPS signals, sensing data signals, etc.
  • Internet signals By compressing or reconstructing and transmitting various wired and wireless service signals at a predetermined compression ratio, various signals can be simultaneously transmitted at the maximum transmission rate.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

Selon un mode de réalisation de l'invention, un commutateur Ethernet multiplexe chacun d'un ou de plusieurs signaux de service comprimés selon un rapport de compression choisi, en fonction d'un ou de plusieurs signaux Internet et de chaque port correspondant; convertit les signaux multiplexés en trames Ethernet; et transmet les trames Ethernet à l'extérieur par le biais des ports individuels correspondants.
PCT/KR2010/009193 2010-01-27 2010-12-22 Commutateur ethernet WO2011093593A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0007541 2010-01-27
KR1020100007541A KR100989920B1 (ko) 2010-01-27 2010-01-27 이더넷 스위치

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WO2011093593A2 true WO2011093593A2 (fr) 2011-08-04
WO2011093593A3 WO2011093593A3 (fr) 2011-11-03

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2018017261A1 (fr) 2016-07-22 2018-01-25 Intel Corporation Techniques de traitement de paquets dans un environnement de commutation bimode

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KR100503815B1 (ko) * 2004-02-02 2005-07-27 (주) 지피시스 아이피 스위칭 시스템의 백플레인
KR100678246B1 (ko) * 2004-12-28 2007-02-02 삼성전자주식회사 이더넷 수동형 광통신망 시스템
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018017261A1 (fr) 2016-07-22 2018-01-25 Intel Corporation Techniques de traitement de paquets dans un environnement de commutation bimode
CN109417518A (zh) * 2016-07-22 2019-03-01 英特尔公司 用于在双模交换环境中处理分组的技术
EP3488573A4 (fr) * 2016-07-22 2020-01-22 INTEL Corporation Techniques de traitement de paquets dans un environnement de commutation bimode
CN109417518B (zh) * 2016-07-22 2021-07-23 英特尔公司 用于在双模交换环境中处理分组的技术

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WO2011093593A3 (fr) 2011-11-03

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