CN106027282A - Network probe for preventing link interruption and network probe method - Google Patents
Network probe for preventing link interruption and network probe method Download PDFInfo
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- CN106027282A CN106027282A CN201610272326.9A CN201610272326A CN106027282A CN 106027282 A CN106027282 A CN 106027282A CN 201610272326 A CN201610272326 A CN 201610272326A CN 106027282 A CN106027282 A CN 106027282A
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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
- H04L41/14—Network analysis or design
Abstract
The invention is applicable to the field of a network probe, and provides a network probe for preventing link interruption and a network probe method. The network probe comprises a first RJ45 interface based on a TIA/EIA-568-A wiring standard, a second RJ45 interface based on a TIA/EIA-568-B wiring standard, an Ethernet PHY module, a link switching module and a processor module. The Ethernet PHY module comprises a first Ethernet PHY unit and a second Ethernet PHY unit. According to the network probe and the method, when the network probe is electrified and works normally, the work information of the two Ethernet PHY units is read for nonvolatile storage; when the network probe is powered off, loopback links are established between the two RJ45 interfaces and between the two Ethernet PHY units; therefore, when the network is electrified and works normally again, the two Ethernet PHY units can be reconfigured according to the work information; the nonvolatile storage is carried out on the network information when the network is electrified and works normally; when the network probe is powered off, the communication link is not interrupted; and the data transmission completeness and reliability can be ensured.
Description
Technical field
The invention belongs to network shunt device field, particularly relate to a kind of network shunt device preventing link down and
Network shunt method.
Background technology
Network shunt device is a kind of network traffics copying equipment, and it uses and is serially connected between primitive network equipment
In physical link, in the case of not disturbing network proper communication, the flow transmitted in network is copied one
Part copy, the Network analyzing equipment that then copy sends to rear end processes, for managing and safeguarding network
Basis is provided.
But, existing network shunt device is during power-off and re-powering, due to the net of both link ends
Network interface is in link down or auto-negotiation state, makes in the data transmission on original data transfer path
Disconnected, thus cause data-bag lost, have a strong impact on the integrity of data transmission.
Summary of the invention
It is an object of the invention to provide a kind of network shunt device preventing link down and network shunt method,
Aim to solve the problem that existing network shunt device during power-off and re-powering, due to the network of both link ends
Interface is in link down or auto-negotiation state, makes the data-transmission interruptions on original data transfer path,
Thus cause data-bag lost, the problem having had a strong impact on the integrity of data transmission.
The present invention is achieved in that a kind of network shunt device preventing link down, including based on
Oneth RJ45 interface 210a of TIA/EIA-568-A line standard and based on TIA/EIA-568-B wiring mark
The 2nd accurate RJ45 interface 210b, also includes:
Ethernet PHY module, including the first ethernet PHY unit 240a and the second ethernet PHY list
Unit 240b；
Link switching module 20, respectively with a RJ45 interface 210a, the 2nd RJ45 interface 210b,
One ethernet PHY unit 240a and the second ethernet PHY unit 240b connects, at described network
When diverter normally works on power, it is respectively turned on a RJ45 interface 210a and the first ethernet PHY unit
Direct connected link between 240a and the 2nd RJ45 interface 210b and the second ethernet PHY unit 240b it
Between direct connected link；When described network shunt device power down, it is respectively turned on a RJ45 interface 210a and
Loopback link between two RJ45 interface 210b and the first ethernet PHY unit 240a and the second ether
Loopback link between net PHY unit 240b；
Processor module 250, is connected with link switching module 20 and ethernet PHY module respectively, is used for
Link switching module 20 is controlled, and when described network shunt device normally works on power, reads first
The job information of ethernet PHY unit 240a and the second ethernet PHY unit 240b carries out non-volatile
Storage, with after described network shunt device power down the most subnormal work on power time, reconfigure the first Ethernet
PHY unit 240a and the second ethernet PHY unit 240b.
Preferably, described link switching module 20 includes the first DPDT unit 220 and the second DPDT
Unit 230；
Wherein, communication link and a RJ45 interface are passed through in a moved end of the first DPDT unit 220
210a connects, and another moved end of the first DPDT unit 220 is connect by communication link and the 2nd RJ45
Mouthful 210b connects, and the first of the first DPDT unit 220 not moved end A is by communication link and second pair
The first of dpdt double-pole double-throw (DPDT) unit 230 not moved end a connects, the second of the first DPDT unit 220 not moved end B
By the second of communication link and the second DPDT unit 230 not moved end b connect, the first DPDT list
The 3rd of unit 220 not moved end A ' and the 4th not moved end B ' is connected by communication link；
Communication link and the first ethernet PHY unit are passed through in one moved end of the second DPDT unit 230
240a connects, and communication link and the second Ethernet are passed through in another moved end of the second DPDT unit 230
PHY unit 240b connects, the 3rd of the second DPDT unit 230 not moved end a ' and the 4th not moved end b '
Connected by communication link；
When described network shunt device normally works on power or described auto-negotiation function completes, the first DPDT
Two moved ends of unit 220 are thrown respectively in its first not moved end A and second not moved end B, the second DPDT
Two moved ends of unit 230 are thrown respectively in its first not moved end a and second not moved end b；
When described network shunt device power down, two moved ends of the first DPDT unit 220 are thrown respectively in it
3rd not moved end A ' and the 4th not moved end B ', two moved ends of the second DPDT unit 230 are thrown respectively
In its 3rd not moved end a ' and the 4th not moved end b '.
Preferably, the first DPDT unit 220 and the second DPDT unit 230 are DPDT class and are subject to
Control switch or relay.
Preferably, described link switching module 20 includes that the first single-pole double throw unit 220a, the second hilted broadsword are double
Throw unit 220b, the 3rd single-pole double throw unit 230a and the 4th single-pole double throw unit 230b；
Wherein, communication link and a RJ45 interface 210a are passed through in the moved end of the first single-pole double throw unit 220a
Connecting, the first of the first single-pole double throw unit 220a not moved end A passes through communication link and the 3rd single-pole double throw
The first of unit 230a not moved end a connects, and the second of the first single-pole double throw unit 220a not moved end A ' leads to
Cross the second not moved end B ' connection of communication link and the second single-pole double throw unit 220b；
The moved end of the second single-pole double throw unit 220b is connected by communication link and the 2nd RJ45 interface 210b,
The first of second single-pole double throw unit 220b not moved end B passes through communication link and the 4th single-pole double throw unit
The first of 230b not moved end b connects；
Communication link and the first ethernet PHY unit 240a are passed through in the moved end of the 3rd single-pole double throw unit 230a
Connecting, the second of the 3rd single-pole double throw unit 230a not moved end a ' passes through communication link and the 4th single-pole double throw
The second of unit 230b not moved end b ' connects；
Communication link and the second ethernet PHY unit 240b are passed through in the moved end of the 4th single-pole double throw unit 230b
Connect；
When described network shunt device normally works on power or described auto-negotiation function completes, the first single-pole double throw
The moved end of unit 220a is thrown in its first not moved end A, and the moved end of the second single-pole double throw unit 220b is thrown in it
First not moved end B, the 3rd single-pole double throw unit 230a moved end throws in its first not moved end a, and the 4th hilted broadsword is double
Throw the moved end of unit 230b to throw in the first not moved end b；
When described network shunt device power down, the first single-pole double throw unit 220a moved end is thrown in its second not moved end
A ', the moved end of the second single-pole double throw unit 220b is thrown in its second not moved end B ', the 3rd single-pole double throw list
Unit throws 230a moved end in the second not moved end a ', the moved end of the 4th single-pole double throw unit 230b throw in its second
Not moved end b '.
Preferably, the first single-pole double throw unit 220a, the second single-pole double throw unit 220b, the 3rd single-pole double throw
Unit 230a and the 4th single-pole double throw unit 230b is SPDT class controlled switch or relay.
Preferably, the link switching speed of described link switching module 20 is less than or equal to 50ms.
Preferably, the first ethernet PHY unit 240a and the second ethernet PHY unit 240b is list
Port ethernet PHY chip；Or, ethernet PHY module is integrated two-port ethernet PHY core
Sheet, the first ethernet PHY unit 240a and the second ethernet PHY unit 240b and described two-port with
Too two ports of net PHY chip connect one to one；Or, ethernet PHY module is integrated four
Port ethernet PHY chip, the first ethernet PHY unit 240a and the second ethernet PHY unit 240b
Connect one to one with two ports in described four port ethernet PHY chip.
Preferably, processor module 250 include for the first ethernet PHY unit 240a and second with
The too job information of net PHY unit 240b carries out the non-volatile memory cells of non-volatile memories.
Preferably, processor module 250 is microprocessor.
The present invention also provides for a kind of network shunt side based on the described network shunt device preventing link down
Method, described method includes:
When described network shunt device normally works on power, processor module 250 controls link handover module 20
The direct connected link being respectively turned between a RJ45 interface 210a and the first ethernet PHY unit 240a with
And the direct connected link that the 2nd between RJ45 interface 210b and the second ethernet PHY unit 240b, and read
The job information of the first ethernet PHY unit 240a and the second ethernet PHY unit 240b carry out non-easily
Mistake stores；
When described network shunt device power down, processor module 250 controls link handover module 20 and is respectively turned on
Oneth RJ45 interface 210a and the 2nd RJ45 interface 210b, the first ethernet PHY unit 240a and
Two ethernet PHY unit 240b so that a RJ45 interface 210a and the 2nd RJ45 interface 210b it
Between, respectively constitute ring between the first ethernet PHY unit 240a and the second ethernet PHY unit 240b
Return link；
Described network shunt device is the most subnormal work on power time, processor module 250 reads at described network
Carry out the job information of non-volatile memories when diverter normally works on power, with reconfigure respectively first with
Too net PHY unit 240a and the second ethernet PHY unit 240b, make the first ethernet PHY unit 240a
Auto-negotiation function is started with the second ethernet PHY unit 240b, and when described auto-negotiation function completes,
Processor module 250 controls link handover module 20 and is respectively turned on RJ45 interface 210a and first ether
Direct connected link between net PHY unit 240a and the 2nd RJ45 interface 210b and the second ethernet PHY
Direct connected link between unit 240b.
Compared with prior art, it has the beneficial effects that the present invention:
By when network shunt device normally works on power, read the first ethernet PHY unit and the second ether
The job information of net PHY unit carries out non-volatile memories；When described network shunt device power down, make first
With the first ethernet PHY unit and the second ethernet PHY list between RJ45 interface and the 2nd RJ45 interface
Loopback link is respectively constituted between unit；Make network shunt device is the most subnormal work on power time, can be according to institute
State carry out the job information of non-volatile memories reconfigure respectively the first ethernet PHY unit and second with
Too net PHY unit, during to ensure network shunt device power down, communication link does not interrupts, it is ensured that data transmission
Integrity and reliability；
By using SPDT class controlled switch or relay, or DPDT class controlled switch or relay are made
For link switching module, the link connection of described network shunt device is switched over, can effectively shorten link and cut
The time changed, it is ensured that the promptness of data transmission.
Accompanying drawing explanation
Fig. 1 is the basic structure block diagram of the network shunt device preventing link down that the embodiment of the present invention provides；
Fig. 2 is the concrete structure block diagram of the network shunt device preventing link down that the embodiment of the present invention provides；
Fig. 3 is the concrete structure frame of the network shunt device preventing link down that another embodiment of the present invention provides
Figure；
Fig. 4 is the flow chart of the network shunt method preventing link down that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
In order to explain the present invention, it is not intended to limit the present invention.
Fig. 1 is the basic structure block diagram of the network shunt device preventing link down that the embodiment of the present invention provides.
As it is shown in figure 1, the present embodiment provide the network shunt device preventing link down, including based on
Oneth RJ45 interface 210a of TIA/EIA-568-A line standard and based on TIA/EIA-568-B wiring mark
The 2nd accurate RJ45 interface 210b.
RJ45 interface is commonly called as crystal head, telecommunications outlet or communication exit, be used for inserting network twisted-pair cable with
Realize the communication connection with other equipment.
The network shunt device preventing link down that the present embodiment provides also includes ethernet PHY module, link
Handover module 20 and processor module 250.
Ethernet PHY module, including the first ethernet PHY unit 240a and the second ethernet PHY list
Unit 240b, in the present embodiment, HY unit 240a and the second ethernet PHY unit 240b all selects single-ended
Mouth ethernet PHY chip.
In a particular application, ethernet PHY module also can be selected for integrated two-port ethernet PHY chip,
First ethernet PHY unit 240a and the second ethernet PHY unit 240b and described two-port Ethernet
Two ports of PHY chip connect one to one；Or, ethernet PHY module selects four integrated ends
Mouth ethernet PHY chip, the first ethernet PHY unit 240a and the second ethernet PHY unit 240b
Connect one to one with two ports in described four port ethernet PHY chip.
Ethernet PHY chip, i.e. Ethernet PHY IC, for realizing IEEE802.3 standard criterion
The correlation function of 1000Base-T physical layer.
Link switching module 20, respectively by communication link and a RJ45 interface 210a, the 2nd RJ45
Interface 210b, the first ethernet PHY unit 240a and the second ethernet PHY unit 240b one_to_one corresponding
Connect, for when described network shunt device normally works on power, connect a RJ45 interface 210a and the
Direct connected link inline-1 between one ethernet PHY unit 240a and the 2nd RJ45 interface 210b and
Direct connected link inline-2 between second ethernet PHY unit 240b；When described network shunt device power down,
It is respectively turned on the loopback link Loopback-1 between a RJ45 interface 210a and the 2nd RJ45 interface 210b
And the loopback link that first between ethernet PHY unit 240a and the second ethernet PHY unit 240b
Loopback-2。
In a preferred embodiment, the link switching speed of described link switching module 20 is less than or equal to
50ms。
In a particular application, link switching module 20 is made up of four SPDT class controlled switch or relay,
Or be made up of two DPDT class controlled switch or relay, or by eight SPST class controlled switch or
Relay forms, and each controlled switch or relay in link switching module 20 are all connected with processor module
And be controlled, to control the break-make of link, thus realize link switching function.
Processor module 250, is connected with link switching module 20 and ethernet PHY module respectively, is used for
Link switching module 20 is controlled, and when described network shunt device normally works on power, reads first
The job information of ethernet PHY unit 240a and the second ethernet PHY unit 240b carries out non-volatile
Storage, with after described network shunt device power down the most subnormal work on power time, reconfigure the first Ethernet
PHY unit 240a and the second ethernet PHY unit 240b.
In the present embodiment, processor module 250 selects microprocessor.
Fig. 2 is the concrete structure block diagram of the network shunt device preventing link down that the embodiment of the present invention provides.
As in figure 2 it is shown, in the present embodiment, link switching module 20 includes the first DPDT unit 220
With the second DPDT unit 230, the first DPDT unit 220 and the second DPDT unit 230 are equal
For DPDT class controlled switch.
In a preferred embodiment, the first DPDT unit 220 and the second DPDT unit 230 are permissible
Equivalence replaces to DPDT class relay.
Wherein, communication link and a RJ45 interface are passed through in a moved end of the first DPDT unit 220
210a connects, and another moved end of the first DPDT unit 220 is connect by communication link and the 2nd RJ45
Mouthful 210b connects, and the first of the first DPDT unit 220 not moved end A is by communication link and second pair
The first of dpdt double-pole double-throw (DPDT) unit 230 not moved end a connects, the second of the first DPDT unit 220 not moved end B
By the second of communication link and the second DPDT unit 230 not moved end b connect, the first DPDT list
The 3rd of unit 220 not moved end A ' and the 4th not moved end B ' is connected by communication link；
Communication link and the first ethernet PHY unit are passed through in one moved end of the second DPDT unit 230
240a connects, and communication link and the second Ethernet are passed through in another moved end of the second DPDT unit 230
PHY unit 240b connects, the 3rd of the second DPDT unit 230 not moved end a ' and the 4th not moved end b '
Connected by communication link；
When described network shunt device normally works on power or described auto-negotiation function completes, the first DPDT
Two moved ends of unit 220 are thrown respectively in its first not moved end A and second not moved end B, the second DPDT
Two moved ends of unit 230 are thrown respectively in its first not moved end a and second not moved end b；To be respectively turned on
Direct connected link inline-1 between one RJ45 interface 210a and the first ethernet PHY unit 240a and
Direct connected link inline-2 between two RJ45 interface 210b and the second ethernet PHY unit 240b；
When described network shunt device power down, two moved ends of the first DPDT unit 220 are thrown respectively in it
3rd not moved end A ' and the 4th not moved end B ', two moved ends of the second DPDT unit 230 are thrown respectively
In its 3rd not moved end a ' and the 4th not moved end b '；So that a RJ45 interface 210a and the 2nd RJ45
Loopback link Loopback-1 is constituted between interface 210b；Make the first ethernet PHY unit 240a and second
Loopback link Loopback-2 between ethernet PHY unit 240b.
In a preferred embodiment, the first DPDT unit 220 and the second DPDT unit 230
Two SPDT class devices or four SPST class devices are replaced to equivalence.
Fig. 3 is the concrete structure frame of the network shunt device preventing link down that another embodiment of the present invention provides
Figure.
As it is shown on figure 3, in the present embodiment, link switching module 20 include the first single-pole double throw unit 220a,
Second single-pole double throw unit 220b, the 3rd single-pole double throw unit 230a and the 4th single-pole double throw unit 230b,
First single-pole double throw unit 220a, the second single-pole double throw unit 220b, the 3rd single-pole double throw unit 230a and
4th single-pole double throw unit 230b all selects SPDT class controlled switch.
In a preferred embodiment, the first single-pole double throw unit 220a, the second single-pole double throw unit 220b,
Three single-pole double throw unit 230a and the 4th single-pole double throw unit 230b all equivalence can replace to SPDT class and continue
Electrical equipment.
The moved end of the first single-pole double throw unit 220a is connected by communication link and a RJ45 interface 210a,
The first of first single-pole double throw unit 220a not moved end A passes through communication link and the 3rd single-pole double throw unit
The first of 230a not moved end a connects, and the second of the first single-pole double throw unit 220a not moved end A ' is by communication
Link and the second not moved end B ' connection of the second single-pole double throw unit 220b；
The moved end of the second single-pole double throw unit 220b is connected by communication link and the 2nd RJ45 interface 210b,
The first of second single-pole double throw unit 220b not moved end B passes through communication link and the 4th single-pole double throw unit
The first of 230b not moved end b connects；
Communication link and the first ethernet PHY unit 240a are passed through in the moved end of the 3rd single-pole double throw unit 230a
Connecting, the second of the 3rd single-pole double throw unit 230a not moved end a ' passes through communication link and the 4th single-pole double throw
The second of unit 230b not moved end b ' connects；
Communication link and the second ethernet PHY unit 240b are passed through in the moved end of the 4th single-pole double throw unit 230b
Connect；
When described network shunt device normally works on power or described auto-negotiation function completes, the first single-pole double throw
The moved end of unit 220a is thrown in its first not moved end A, and the moved end of the second single-pole double throw unit 220b is thrown in it
First not moved end B, the 3rd single-pole double throw unit 230a moved end throws in its first not moved end a, and the 4th hilted broadsword is double
Throw the moved end of unit 230b to throw in the first not moved end b；Be respectively turned on a RJ45 interface 210a and first with
The too direct connected link inline-1 between net PHY unit 240a and the 2nd RJ45 interface 210b and second
Direct connected link inline-2 between ethernet PHY unit 240b；
When described network shunt device power down, the first single-pole double throw unit 220a moved end is thrown in its second not moved end
A ', the moved end of the second single-pole double throw unit 220b is thrown in its second not moved end B ', the 3rd single-pole double throw list
Unit throws 230a moved end in the second not moved end a ', the moved end of the 4th single-pole double throw unit 230b throw in its second
Not moved end b '；So that constituting loopback chain between a RJ45 interface 210a and the 2nd RJ45 interface 210b
Road Loopback-1；Make the first ethernet PHY unit 240a and the second ethernet PHY unit 240b it
Between constitute loopback link Loopback-2.
The embodiment of the present invention also provides for a kind of network shunt method preventing link down, and described method includes:
When described network shunt device normally works on power, processor module 250 controls link handover module 20
The direct connected link being respectively turned between a RJ45 interface 210a and the first ethernet PHY unit 240a with
And the direct connected link that the 2nd between RJ45 interface 210b and the second ethernet PHY unit 240b, and read
The job information of the first ethernet PHY unit 240a and the second ethernet PHY unit 240b carry out non-easily
Mistake stores；
When described network shunt device power down, processor module 250 controls link handover module 20 and is respectively turned on
Oneth RJ45 interface 210a and the 2nd RJ45 interface 210b, the first ethernet PHY unit 240a and
Two ethernet PHY unit 240b so that a RJ45 interface 210a and the 2nd RJ45 interface 210b it
Between so that respectively structure between the first ethernet PHY unit 240a and the second ethernet PHY unit 240b
Become loopback link；
Described network shunt device is the most subnormal work on power time, processor module 250 reads at described network
Carry out the job information of non-volatile memories when diverter normally works on power, with reconfigure respectively first with
Too net PHY unit 240a and the second ethernet PHY unit 240b, make the first ethernet PHY unit 240a
Auto-negotiation function is started with the second ethernet PHY unit 240b, and when described auto-negotiation function completes,
Processor module 250 controls link handover module 20 and is respectively turned on RJ45 interface 210a and first ether
Direct connected link between net PHY unit 240a and the 2nd RJ45 interface 210b and the second ethernet PHY
Direct connected link between unit 240b.
In a particular application, described job information includes network rate, dual-mode, MDI/MDI-X
(Medium Dependent Interface/Medium Dependent Interface cross-over)、
The information such as Master/Slave (master/slave mode).
Fig. 4 is the flow chart of the network shunt method preventing link down that the embodiment of the present invention provides.
As shown in Figure 4, the network shunt method preventing link down that the present embodiment provides, including walking as follows
Rapid:
Connect with direct connected link inline-2 at direct connected link inline-1, network shunt device is when normally working on power,
The job information reading the first ethernet PHY unit 240a and the second ethernet PHY unit 240b is gone forward side by side
Row non-volatile memories；
When network shunt device power down, disconnect direct connected link inline-1 and direct connected link inline-2, connect ring
Return link Loopback-1 and loopback link Loopback-2；
Described network shunt device is the most subnormal work on power time, read normally work on power at network shunt device
The job information of Shi Jinhang non-volatile memories, reconfigures the first ethernet PHY unit 240a and second
Ethernet PHY unit 240b；
Start the first ethernet PHY unit 240a and the auto-negotiation merit of the second ethernet PHY unit 240b
Energy；
Wait that described auto-negotiation function completes；
If described auto-negotiation function is not fully complete, then return to waiting for the step that described auto-negotiation function completes；
If described auto-negotiation function completes, then reclose direct connected link inline-1 and direct connected link inline-2.
Link inline-1, inline-2, Loopback-1 and Loopback-2 in the present invention all use dotted line table
Show signal path.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (10)
1. prevent a network shunt device for link down, including based on TIA/EIA-568-A line standard
Oneth RJ45 interface (210a) and the 2nd RJ45 interface (210b) based on TIA/EIA-568-B line standard,
It is characterized in that, described network shunt device also includes:
Ethernet PHY module, including the first ethernet PHY unit (240a) and the second ethernet PHY
Unit (240b)；
Link switching module (20), respectively with a RJ45 interface (210a), the 2nd RJ45 interface (210b),
First ethernet PHY unit (240a) and the second ethernet PHY unit (240b) connect, and are used for
When described network shunt device normally works on power, it is respectively turned on RJ45 interface (210a) and first ether
Direct connected link between net PHY unit (240a) and the 2nd RJ45 interface (210b) and the second ether
Direct connected link between net PHY unit (240b)；When described network shunt device power down, it is respectively turned on
Loopback link between one RJ45 interface (210a) and the 2nd RJ45 interface (210b) and the first ether
Loopback link between net PHY unit (240a) and the second ethernet PHY unit (240b)；
Processor module (250), is connected with link switching module (20) and ethernet PHY module respectively,
For link switching module (20) is controlled, and when described network shunt device normally works on power,
Read the work letter of the first ethernet PHY unit (240a) and the second ethernet PHY unit (240b)
Breath carry out non-volatile memories, with after described network shunt device power down the most subnormal work on power time, again
Configure the first ethernet PHY unit (240a) and the second ethernet PHY unit (240b).
Prevent the network shunt device of link down the most as claimed in claim 1, it is characterised in that described chain
Road handover module (20) includes the first DPDT unit (220) and the second DPDT unit (230)；
Wherein, a moved end of the first DPDT unit (220) is connect by communication link and a RJ45
Mouth (210a) connects, and communication link and second is passed through in another moved end of the first DPDT unit (220)
RJ45 interface (210b) connects, and the first of the first DPDT unit (220) not moved end (A) is by logical
The first of letter link and the second DPDT unit (230) not moved end (a) connection, the first DPDT list
The second of unit (220) not moved end (B) by communication link and the second DPDT unit (230) the
Two not moved end (b) connections, the 3rd of the first DPDT unit (220) not moved end (A ') and the 4th
Moved end (B ') is not connected by communication link；
Communication link and the first ethernet PHY list are passed through in one moved end of the second DPDT unit (230)
Unit (240a) connects, and communication link and second is passed through in another moved end of the second DPDT unit (230)
Ethernet PHY unit (240b) connects, the 3rd of the second DPDT unit (230) not moved end (a ')
With the 4th not moved end (b ') connected by communication link；
When described network shunt device normally works on power or described auto-negotiation function completes, the first DPDT
Two moved ends of unit (220) are thrown in its first not moved end (A) and second not moved end (B) respectively, and
Two moved ends of two DPDT unit (230) are thrown respectively in its first not moved end (a) and the second not moved end
(b)；
When described network shunt device power down, two moved ends of the first DPDT unit (220) throw respectively in
Its 3rd not moved end (A ') and the 4th not moved end (B '), two of the second DPDT unit (230)
Individual moved end is thrown in it the 3rd not moved end (a ') and the 4th not moved end (b ') respectively.
Prevent the network shunt device of link down the most as claimed in claim 2, it is characterised in that first pair
Dpdt double-pole double-throw (DPDT) unit (220) and the second DPDT unit (230) are DPDT class controlled switch or relay
Device.
Prevent the network shunt device of link down the most as claimed in claim 1, it is characterised in that described chain
Road handover module (20) include the first single-pole double throw unit (220a), the second single-pole double throw unit (220b),
3rd single-pole double throw unit (230a) and the 4th single-pole double throw unit (230b)；
Wherein, communication link and a RJ45 interface are passed through in the moved end of the first single-pole double throw unit (220a)
(210a) connecting, the first of the first single-pole double throw unit (220a) not moved end (A) passes through communication link
With the first of the 3rd single-pole double throw unit (230a) not moved end (a) be connected, the first single-pole double throw unit (220a)
Second not moved end (A ') motionless by the second of communication link and the second single-pole double throw unit (220b)
End (B ') connect；
Communication link and the 2nd RJ45 interface (210b) are passed through in the moved end of the second single-pole double throw unit (220b)
Connecting, the first of the second single-pole double throw unit (220b) not moved end (B) is single by communication link and the 4th
The first of dpdt double-pole double-throw (DPDT) unit (230b) not moved end (b) connects；
Communication link and the first ethernet PHY unit are passed through in the moved end of the 3rd single-pole double throw unit (230a)
(240a) connect, and the second of the 3rd single-pole double throw unit (230a) not moved end (a ') pass through communication link
With the second of the 4th single-pole double throw unit (230b) not moved end (b ') be connected；
Communication link and the second ethernet PHY unit are passed through in the moved end of the 4th single-pole double throw unit (230b)
(240b) connect；
When described network shunt device normally works on power or described auto-negotiation function completes, the first single-pole double throw
The moved end of unit (220a) is thrown in its first not moved end (A), the second single-pole double throw unit (220b)
Moved end is thrown in its first not moved end (B), and the 3rd single-pole double throw unit (230a) moved end is thrown in it first not
Moved end (a), the moved end of the 4th single-pole double throw unit (230b) is thrown in the first not moved end (b)；
When described network shunt device power down, the first single-pole double throw unit (220a) moved end is thrown in it second not
Moved end (A '), the moved end of the second single-pole double throw unit (220b) is thrown in it second not moved end (B '),
3rd single-pole double throw unit (230a) moved end is thrown in the second not moved end (a '), the 4th single-pole double throw unit (230b)
Moved end throw in it second not moved end (b ').
Prevent the network shunt device of link down the most as claimed in claim 4, it is characterised in that first is single
Dpdt double-pole double-throw (DPDT) unit (220a), the second single-pole double throw unit (220b), the 3rd single-pole double throw unit (230a)
It is SPDT class controlled switch or relay with the 4th single-pole double throw unit (230b).
6. the network shunt device preventing link down as described in any one of Claims 1 to 5, it is characterised in that
The link switching speed of described link switching module (20) is less than or equal to 50ms.
Prevent the network shunt device of link down the most as claimed in claim 1, it is characterised in that first with
Too net PHY unit (240a) and the second ethernet PHY unit (240b) is single-port ethernet PHY
Chip；Or, ethernet PHY module is integrated two-port ethernet PHY chip, the first Ethernet
PHY unit (240a) and the second ethernet PHY unit (240b) and described two-port ethernet PHY
Two ports of chip connect one to one；Or, ethernet PHY module is four integrated port ethernets
PHY chip, the first ethernet PHY unit (240a) and the second ethernet PHY unit (240b) with
Two ports in described four port ethernet PHY chip connect one to one.
Prevent the network shunt device of link down the most as claimed in claim 1, it is characterised in that processor
Module (250) includes for the first ethernet PHY unit (240a) and the second ethernet PHY unit
(240b) job information carries out the non-volatile memory cells of non-volatile memories.
Prevent the network shunt device of link down the most as claimed in claim 1, it is characterised in that processor
Module (250) is microprocessor.
10. a network based on the network shunt device preventing link down described in any one of claim 1～9
Shunt method, it is characterised in that described method includes:
When described network shunt device normally works on power, processor module (250) controls link handover module
(20) it is respectively turned between a RJ45 interface (210a) and the first ethernet PHY unit (240a)
Direct connected link and the 2nd RJ45 interface (210b) and the second ethernet PHY unit (240b) between
Direct connected link, and read the first ethernet PHY unit (240a) and the second ethernet PHY unit (240b)
Job information carry out non-volatile memories；
When described network shunt device power down, processor module (250) controls link handover module (20) point
Jie Tong a RJ45 interface (210a) and the 2nd RJ45 interface (210b), the first ethernet PHY list
Unit (240a) and the second ethernet PHY unit (240b) so that a RJ45 interface (210a) and
Between 2nd RJ45 interface (210b), the first ethernet PHY unit (240a) and the second ethernet PHY
Loopback link is respectively constituted between unit (240b)；
Described network shunt device is the most subnormal work on power time, processor module (250) read at described net
The job information of non-volatile memories is carried out, to reconfigure first respectively when network diverter normally works on power
Ethernet PHY unit (240a) and the second ethernet PHY unit (240b), make the first ethernet PHY
Unit (240a) and the second ethernet PHY unit (240b) start auto-negotiation function, and described self tuning
When business's function completes, processor module (250) controls link handover module (20) and is respectively turned on a RJ45
Direct connected link between interface (210a) and the first ethernet PHY unit (240a) and the 2nd RJ45
Direct connected link between interface (210b) and the second ethernet PHY unit (240b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272326.9A CN106027282A (en) | 2016-04-28 | 2016-04-28 | Network probe for preventing link interruption and network probe method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272326.9A CN106027282A (en) | 2016-04-28 | 2016-04-28 | Network probe for preventing link interruption and network probe method |
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| CN106027282A true CN106027282A (en) | 2016-10-12 |
Family
ID=57081194
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610272326.9A Pending CN106027282A (en) | 2016-04-28 | 2016-04-28 | Network probe for preventing link interruption and network probe method |
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| CN (1) | CN106027282A (en) |
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| CN106603310A (en) * | 2017-01-12 | 2017-04-26 | 深圳市恒扬数据股份有限公司 | Network management interface system and network splitter |
| CN107395407A (en) * | 2017-07-13 | 2017-11-24 | 杭州迪普科技股份有限公司 | A kind of method and apparatus of power-off protection |
| CN107579770A (en) * | 2017-09-15 | 2018-01-12 | 通鼎互联信息股份有限公司 | Communications network system, diverter device and its method for accessing one-way transport network |
| CN112087400A (en) * | 2020-09-16 | 2020-12-15 | 浙江中烟工业有限责任公司 | Network flow mirroring system and method based on EtherCAT slave station chip |
| CN112260901A (en) * | 2020-10-23 | 2021-01-22 | 北京信而泰科技股份有限公司 | Network damage instrument and use method thereof |
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