CN103428116A - Gigabit Ethernet switch, control method thereof, and network system using the switch - Google Patents
Gigabit Ethernet switch, control method thereof, and network system using the switch Download PDFInfo
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- CN103428116A CN103428116A CN2012101646680A CN201210164668A CN103428116A CN 103428116 A CN103428116 A CN 103428116A CN 2012101646680 A CN2012101646680 A CN 2012101646680A CN 201210164668 A CN201210164668 A CN 201210164668A CN 103428116 A CN103428116 A CN 103428116A
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Abstract
The invention relates to a gigabit Ethernet switch, a control method thereof and a network system using the switch. The switch comprises a machine housing, at least two 100M connection ports and a gigabit Ethernet switch chip, wherein the at least two 100M connection ports are fixed on the machine housing, the 100M connection ports at least output four paths of signal lines to the gigabit Ethernet switch chip, and the two 100M connection ports are parallel connected and then output eight paths of signal lines for connection with the gigabit Ethernet switch chip so as to realize 1000M bandwidth. The switch also comprises a detection single-chip microcomputer, the detection single-chip microcomputer circularly detects the connection ports, when a connection port is detected to fail, the 100M bandwidth is maintained by controlling the gigabit Ethernet switch chip to degradingly switch from a normal connection state to four-path signal output, thus the technical effects of both ensuring the internet speed and ensuring continuous working without being affected by a single point of failure are realized.
Description
Technical field
The present invention relates to network communication equipment, especially gigabit ethernet switch and control method thereof and the network system of applying this gigabit ethernet switch.
Background technology
Video entertainment system is be applied to the field of track traffic such as train, subway, light rail a kind of based on digital video frequency server, Fast Ethernet network and the advanced technologies such as broadband embedded set top box and video jukebox software, and manage, control and play by the content to video playback, realize to video playback carry out completely, the system of targeted, high efficiency unified management.Ethernet switch is the hub transmission of whole video entertainment system, and the audio frequency and video effect of system plays is had to direct impact.Usually the Ethernet switch of media controller adopts the 100 m ethernet exchanger chip to connect several 100 m ethernets connectivity port, and actual network speed is only 50
-60000000.When system is provided with the multi-channel video channel, the not smooth phenomenons such as mosaic are often arranged in the playing audio-video process.
For solving the network speed problem, multiple gigabit ethernet switch has been developed in market, adopts the gigabit ethernet switch chip to be connected with two gigabit Ethernet connectivity ports and several 100 m ethernets connectivity port, so can realize 1,000 million network speed.But, in field of track traffic, because the Ethernet switch be applied on bullet train needs stability in use and the higher connectivity port of reliability, usually can only use 100,000,000 connectivity ports at present, as the M12 connectivity port, therefore, the lifting of bandwidth is restricted, and then has influence on the fluency of playing audio-video.In addition, once break down in one of them Ethernet connectivity port, whole Ethernet switch quits work, and has a strong impact on production.
Our company is devoted to research and develop a kind of 100,000,000 fault-tolerant Ethernets in early days, when broken down in connectivity port, can automatically be converted to other connectivity ports, unlikelyly affects production.But because bandwidth still is limited to 100,000,000, still have not smooth phenomenon in the playing audio-video process, still can not meet the requirement of track traffic application.
The Chinese invention patent application that application number is 201010162067.7, fast quick-recovery redundant technique in a kind of support 5ms is disclosed, the management type giga industry Ethernet switch that meets requirements of rail traffic control system, it adopts new redundant arithmetic, select principal and subordinate's switch and determine normal link and backup link by algorithm, judge the communications status of port by the method for interrupting, poll is monitored, and realize redundancy by the change port status.But still remain the recovery time of this redundant technique to be improved.
The Chinese invention patent application that application number is 201010567785.2, a kind of fault-tolerant network switch is disclosed, comprise two above network exchange unit and an interconnection unit without Single Point of Faliure, two network exchange unit network data bag all in normal operation, when one of them network exchange unit breaks down, will to bear all working uninterrupted to guarantee work for another network exchange unit.But can reduce the performance of switch.
Therefore, those skilled in the art is devoted to exploitation and possesses the network speed that can guarantee that meets track traffic application and can realize rapidly again fault-tolerant gigabit ethernet switch and control method thereof and the network system of applying this switch.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention be to provide possess meet the track traffic application can the smooth playing audio frequency and video can continuous firing not be subject to gigabit ethernet switch and the control method thereof of single connectivity port fault effects and the network system of applying this switch again.
For achieving the above object, the invention provides gigabit ethernet switch, it comprises casing, at least two 100,000,000 connectivity ports, with the gigabit ethernet switch chip, described at least two 100,000,000 connectivity ports are fixed on described casing, each described 100,000,000 connectivity port has at least four road holding wires, it is characterized in that: every two described 100,000,000 connectivity ports are combined into the gigabit connectivity port with eight road holding wires, described gigabit connectivity port is connected with gigabit ethernet line in a side, and be connected with described gigabit ethernet switch chip at opposite side, thereby realize the 1000M bandwidth.
Adopt technique scheme, make an appearance seem the 100 m ethernet switch, by being connected with described gigabit ethernet switch chip forming eight road holding wires after two 100,000,000 connectivity port parallel connections, thereby realize the 1000M bandwidth.
Preferably, connectivity port of the present invention can be M12 connectivity port or RJ45 connectivity port.Preferably use the M12 connectivity port, because the M12 connectivity port is relatively more reliable and stable, more meet the requirement of field of track traffic.But it should be noted that; innovation of the present invention does not lie in the form of connectivity port; as long as can realize the existing connectivity port of data access and output function, and adopted technical scheme of the present invention to reach technique effect of the present invention, all in protection scope of the present invention.
Preferably, described M12 connectivity port is four-core connectivity port or eight core connectivity ports.
Preferably, gigabit ethernet switch of the present invention also comprises the detection single-chip microcomputer, and described detection single-chip microcomputer mainly is comprised of status register, central processing unit, signal control relay; Described status register is for storing predefined state value, and described central processing unit is used for the state of the described gigabit of cycle detection connectivity port and will detects income value and be stored in the interior state value of described status register and compare; In the situation that described detection single-chip microcomputer finds that described gigabit connectivity port breaks down by analysis, described detection single-chip microcomputer sends control signal by described central processing unit, and described signal control relay is for receiving the control signal that described central processing unit sends, control the eight tunnel degradation of signals that described gigabit ethernet switch chip exports from normal connected state and switch to four road signals outputs, thereby maintain the 100M bandwidth.
Preferably, be less than 1s the switching time that the described eight tunnel degradation of signals that described gigabit ethernet switch chip is exported from normal condition switch to four road signals outputs.
The present invention also provides the control method of gigabit ethernet switch, comprises the following steps:
(i) input predefined state value to the status register of described detection single-chip microcomputer;
(ii) signal condition of described each connectivity port of central processing unit cycle detection of described detection single-chip microcomputer;
(iii) will detect income value and the state value that is stored in described status register is compared;
(iv) through relatively finding in testing result and the unmatched situation of predefined state value, described connectivity port is identified breaks down, described central processing unit sends control signal to described signal control relay, described signal control relay is controlled the eight tunnel degradation of signals that described gigabit ethernet switch chip exports from normal connected state and is switched to four road signals outputs, maintains the 100M bandwidth.
Adopt technique scheme, except realizing the gigabit bandwidth, also realized fault-tolerant function.By detecting the single-chip microcomputer circulation, each connectivity port is detected, when certain connectivity port being detected and break down, switched to rapidly 100,000,000 outputs, thereby reached, can be guaranteed that network speed again can continuous firing be subject to the technique effect of single connectivity port fault effects.
In addition, the present invention also provides the network system of applying above-mentioned gigabit ethernet switch, and described network system comprises at least two described gigabit ethernet switch; Every described gigabit ethernet switch comprises that at least one is for the described gigabit connectivity port of signal input and at least one described gigabit connectivity port for signal output; And the described gigabit connectivity port for the signal input of First is connected with second described gigabit connectivity port for signal output, realizes the signal transmission of whole described network system.
Preferably, when in described network system, certain described gigabit ethernet switch breaks down, the gigabit ethernet switch of described fault enters the BYPASS pattern, and signal continues to be transferred to next described gigabit ethernet switch.
Network interface of the present invention, gigabit connectivity port or 100,000,000 connectivity ports can be optical interface or electrical interface.Preferably use electrical interface in field of track traffic.But, at other field, can realize all connected modes of signal transmission in prior art, as the connected modes such as optical fiber, twisted-pair feeder all can be applicable to the present invention.
The accompanying drawing explanation
Technique effect below with reference to accompanying drawing to design of the present invention, concrete structure and generation is described further, to understand fully purpose of the present invention, feature and effect.
Fig. 1 is the 100 m ethernet of the application M12 connectivity port of prior art;
Fig. 2 is the gigabit ethernet switch of application M12 connectivity port;
Fig. 3 is the M12 connectivity port;
Fig. 4 is M12 connectivity port in parallel;
Fig. 5 is the BYPASS pattern of network system;
Fig. 6 is control method schematic diagram of the present invention;
Wherein, 1. gigabit ethernet switch; 2. gigabit ethernet switch chip; 3. four road holding wires; 4. eight road holding wires; 5. detection single-chip microcomputer; 6. 100,000,000 connectivity ports; 60. gigabit connectivity port; 101. casing; 106.M12 connectivity port.
Embodiment
Fig. 1 shows the 100 m ethernet switch of prior art application M12 network interface, comprise casing 101, at least be provided with the M12 connectivity port 106 of several four-cores on casing 101, four road holding wires are respectively exported in M12 connectivity port 106, be connected with the exchanger chip of 100 m ethernet switch inside, realize signal transmission and exchanges data.
As shown in Figure 2, gigabit ethernet switch 1 of the present invention comprises casing 101, at least two 100,000,000 connectivity ports 6, with gigabit ethernet switch chip 2, described at least two 100,000,000 connectivity ports 6 are fixed on described casing 101, each described 100,000,000 connectivity port 6 has at least four road holding wires 3, it is characterized in that: every two described 100,000,000 connectivity ports 6 are combined into the gigabit connectivity port 60 with eight road holding wires 4, described gigabit connectivity port 60 is connected with gigabit ethernet line in a side, and be connected with described gigabit ethernet switch chip 2 at opposite side, thereby realize the 1000M bandwidth.
Alternatively, described gigabit ethernet switch 1 comprises switch casing 101 and is located at the gigabit ethernet switch chip 2 of switch inside, described casing 101 is provided with at least 2 100,000,000 connectivity ports 6 and optional mains switch, described at least two 100,000,000 connectivity ports 6 are fixed on described casing 101, each described 100,000,000 connectivity port 6 has at least four road holding wires 3, especially, every two described 100,000,000 connectivity ports 6 are combined into the gigabit connectivity port 60 with eight road holding wires 4, described gigabit connectivity port 60 is connected with gigabit ethernet line in a side, and be connected with described gigabit ethernet switch chip 2 at opposite side, thereby realize the 1000M bandwidth.
Preferably, described 100,000,000 connectivity ports 6 are M12 connectivity port 106 or RJ45 connectivity port.Described M12 connectivity port 106 is four-core connectivity port or eight core connectivity ports.
Preferably use the M12 connectivity port 106 shown in Fig. 2, Fig. 3, Fig. 4 in field of track traffic, M12 connectivity port 106 is the four-core connectivity port, there are four road holding wires 3, by after two M12 connectivity port 106 parallel connections, thering are eight road holding wires 4, be connected with described gigabit ethernet switch chip 2, thereby realize the 1000M bandwidth.
Another embodiment of the present invention, on above-mentioned technical scheme basis, also comprises detection single-chip microcomputer 5, and this detection single-chip microcomputer 5 is connected with gigabit ethernet switch chip 2, mainly status register, central processing unit, signal control relay, consists of.Described status register is for storing predefined state value, and described central processing unit is used for the state of described each connectivity port of cycle detection and will detects income value and be stored in the interior state value of described status register and compare; In the situation that described detection single-chip microcomputer 5 finds that certain connectivity port breaks down by analysis, described detection single-chip microcomputer 5 sends control signal by described central processing unit, and described signal control relay is for receiving the control signal that described central processing unit sends, control the eight tunnel degradation of signals that described gigabit ethernet switch chip 2 exports from normal connected state and switch to four road signals outputs, thereby maintain the 100M bandwidth.
The central processing unit that detects single-chip microcomputer 5 is 8-bit CPU with Ethernet Mac (8051 single-chip microcomputer).Detect 5 pairs of exchanger chips 2 of single-chip microcomputer and monitor in real time, exchanger chip 2, by 8p in output, is realized the 1000M network speed under normal circumstances, and when detection exchanger chip 2 is abnormal, degradation is switched to by 4pin to be exported, and makes switch switch to 100M work; The technique effect reached is to use common 100,000,000 connectivity ports 6 by simple in parallel, and does not need additionally to increase gigabit connectivity port 60, can realize the upgrading of bandwidth; While can realize fault-tolerant, and switch still can be worked under fault to a certain degree, guarantees the unobstructed of transfer of data.
Gigabit ethernet switch 1 of the present invention is supported IEEE 803.3,802.3u, 802.3ab, 802.3z, 802.3x, 802.3ad, 802.1D, 802.1W, 802.1Q, 802.1p, 802.1X standard.Support Port Trunk with LACP, IGMP snooping, GMRP, SNTP, RSTP/STP, DHCP Server, SNMPV1/V2c/V3 agreement; Gbps: >=12.8Gbps switching matrix; Packet Forwarding Rate: >=6.55Mpps, all of the port surface speed forwarding; The Support Port Mirroring function; Support QoS, support bandwidth to control, support priority to control, support the priority based on 802.1P and DSCP; Support snmp protocol, support order line configuration (CLI), support Telnet Remote configuration, support configuration mouthful (Console) configuration, back-up system daily record, support the classification alarm, network management function is provided; Provide power supply, operation and each port network speed, network to connect warning light; Support is set the IP address by toggle switch to described switch module; The broadcast storm of support based on bandwidth percentage suppresses.
As shown in Figure 6, the control method of described gigabit ethernet switch 1 comprises the following steps:
(i) input predefined state value to the status register of described detection single-chip microcomputer 5;
(ii) signal condition of described each connectivity port of central processing unit cycle detection of described detection single-chip microcomputer 5;
(iii) will detect income value and the state value that is stored in described status register is compared;
(iv) through relatively finding in testing result and the unmatched situation of predefined state value, described connectivity port is identified breaks down, described central processing unit sends control signal to described signal control relay, described signal control relay is controlled the eight tunnel degradation of signals that described gigabit ethernet switch chip 2 exports from normal connected state and is switched to four road signals outputs, maintains the 100M bandwidth.
By software operation, in advance to the status register input preset value that detects single-chip microcomputer 5, the signal condition of described each connectivity port of central processing unit cycle detection, and the set point prestored in testing result and status register is contrasted, as detect certain connectivity port connection status for disconnection or unmatched through contrast discovery testing result and set point, think that this connectivity port breaks down, central processing unit sends control signal to signal control relay, control the eight tunnel degradation of signals that described gigabit ethernet switch chip 2 exports from normal connected state and switch to four road signals outputs, thereby maintain the 100M bandwidth, in the situation that detect the connection status of described connectivity port, be connection, described gigabit ethernet switch chip, with eight road signals outputs, is realized the 1000M bandwidth.
Controlling and be less than 5s the switching time that eight tunnel degradation of signals that described gigabit ethernet switch chip 2 exports from normal connected state switch to four road signals outputs, preferably be less than 1s, is more preferably 50ms, 100ms, 200ms, 600ms.
The present invention also provides the network system of applying above-mentioned gigabit ethernet switch 1, and described network system comprises at least two described gigabit ethernet switch 1; Every described gigabit ethernet switch 1 comprises that at least one is for the described gigabit connectivity port 60 of signal input and at least one described gigabit connectivity port 60 for signal output; And the described gigabit connectivity port 60 for the signal input of First is connected with second described gigabit connectivity port 60 for signal output, realizes the signal transmission of whole described network system.
As shown in Figure 4, for realizing the transmission of gigabit networking, in the situation that the M12 connectivity port 106 of application four-core, signal input interface is at least the M12 connectivity port 106 of two parallel connections.Signal output interface is also correspondingly the M12 connectivity port 106 of two parallel connections.
As shown in Figure 5, when in network system, certain gigabit ethernet switch 1 breaks down, the gigabit ethernet switch 1 of described fault must enter the BYPASS pattern, and signal continues to be transferred to next gigabit ethernet switch 1.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in the determined protection range by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (8)
1. gigabit ethernet switch (1), it comprises casing (101), at least two 100,000,000 connectivity ports (6), with gigabit ethernet switch chip (2), described at least two 100,000,000 connectivity ports (6) are fixed on described casing (101), each described 100,000,000 connectivity port (6) has at least four road holding wires (3), it is characterized in that: every two described 100,000,000 connectivity ports (6) are combined into the gigabit connectivity port (60) with eight road holding wires (4), described gigabit connectivity port (60) is connected with gigabit ethernet line in a side, and be connected with described gigabit ethernet switch chip (2) at opposite side, thereby realize the 1000M bandwidth.
2. gigabit ethernet switch according to claim 1, it is characterized in that: described 100,000,000 connectivity ports (6) are M12 connectivity port (106) or RJ45 connectivity port.
3. gigabit ethernet switch according to claim 1 and 2, it is characterized in that: described M12 connectivity port (106) is four-core connectivity port or eight core connectivity ports.
4. according to the described gigabit ethernet switch of any one in claims 1 to 3, it is characterized in that: described gigabit ethernet switch also comprises detection single-chip microcomputer (5), and described detection single-chip microcomputer (5) mainly is comprised of status register, central processing unit, signal control relay;
Described status register is for storing predefined state value, and described central processing unit is used for the signal condition of described each connectivity port of cycle detection and will detects income value and be stored in the interior state value of described status register and compare;
In the situation that described detection single-chip microcomputer (5) finds that described connectivity port breaks down by analysis, described detection single-chip microcomputer (5) sends control signal by described central processing unit, and described signal control relay is for receiving the control signal that described central processing unit sends, control the eight tunnel degradation of signals that described gigabit ethernet switch chip (2) exports from normal connected state and switch to four road signals outputs, thereby maintain the 100M bandwidth.
5. gigabit ethernet switch according to claim 4 is characterized in that: be less than 1s the switching time that the described eight tunnel degradation of signals that described gigabit ethernet switch chip (2) is exported from normal condition switch to four road signals outputs.
6. the control method of gigabit ethernet switch as described as claim 4 or 5 (1), it is characterized in that: described control method comprises the following steps:
(i) input predefined state value to the status register of described detection single-chip microcomputer (5);
(ii) signal condition of described each connectivity port of central processing unit cycle detection of described detection single-chip microcomputer (5);
(iii) will detect income value and the state value that is stored in described status register is compared;
(iv) through relatively finding in testing result and the unmatched situation of predefined state value, described connectivity port is identified breaks down, described central processing unit sends control signal to described signal control relay, described signal control relay is controlled the eight tunnel degradation of signals that described gigabit ethernet switch chip (2) exports from normal connected state and is switched to four road signals outputs, maintains the 100M bandwidth.
7. the network system of gigabit ethernet switch (1), it is characterized in that: described network system comprises that at least two according to the described gigabit ethernet switch of claim 4 or 5 (1); Every described gigabit ethernet switch (1) comprises that at least one is for the described gigabit connectivity port (60) of signal input and at least one described gigabit connectivity port (60) for signal output; And the described gigabit connectivity port (60) for the signal input of First is connected with second described gigabit connectivity port (60) for signal output, realizes the signal transmission of whole described network system.
8. network system according to claim 7, it is characterized in that: when certain described gigabit ethernet switch (1) while breaking down, the gigabit ethernet switch of described fault (1) (1) enters the BYPASS pattern, and signal continues to be transferred to next described gigabit ethernet switch (1).
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Application publication date: 20131204 |