CN100466566C - Automatic configuration equipment for linking network media and its method - Google Patents

Automatic configuration equipment for linking network media and its method Download PDF

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Publication number
CN100466566C
CN100466566C CNB021322856A CN02132285A CN100466566C CN 100466566 C CN100466566 C CN 100466566C CN B021322856 A CNB021322856 A CN B021322856A CN 02132285 A CN02132285 A CN 02132285A CN 100466566 C CN100466566 C CN 100466566C
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China
Prior art keywords
media
pair
configuration
couple
configuration module
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CNB021322856A
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CN1481116A (en
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陈俊儒
童建勋
徐荣国
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Realtek Semiconductor Corp
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Realtek Semiconductor Corp
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    • H04W88/16—Gateway arrangements

Abstract

The method is to automaticaly configure media linking module of node device in LAN. There is at least two pair of wire connected between each node device for transmitting data in opposite directions. Node device possesses at least two pair of connection module for receiving and transmitting data. The device includes following parts. A media configuration module switches connecting state of two pair of connection module and two pair of wire selectively. When IDLE code is received, operation is stopped i.e. in pause state. The counter possesses a preset initial value. If the said pause state is ended, and connection signal has not received yet, the counter is added a first value. A timer is utilized to set the paused time in order to control time for stopping operation of media configuration module.

Description

Automatic configuration equipment and method that network media links
Technical field
The present invention relates to automatic configuration equipment and method that a kind of network media links, particularly a kind of by the running frequency of failure of setting up the existing media configuration equipment of a counter records, suspend the running time to reach device and method and dynamically change to correct configuration.
Background technology
Ethernet (Ethernet) is the LAN framework that the most widely uses now.In the Ethernet technology, commonly used have 10Base-T and a 100Base-TX, and it utilizes twisted-pair feeder (twisted pair cable) as passing the media (media) of receiving data between two node apparatus.Use in the network on-line of twisted-pair feeder one, be by one or many lead transmitted data, and with other one or many lead is received data according to rightabout.In a node apparatus, then be connected to lead via the connector that includes a plurality of pins (pin) (connector), media between this kind pin and lead link promptly be called media rely on interface (media dependent interface, MDI).If will set up binding, the pin that is used for reception (transmission) of a node just must be connected to the pin that another node is used for transmitting (reception) between two nodes.Based on such requirement, node of different nature just has different media and links configuration.As (network interface card NIC), just has different configurations with repeater (repeater) or network switch (network switch) as intermediate node as the adapter of terminal node.
See also Fig. 1, its media that is the RJ-45 connector is adopted relies on the schematic diagram of interface (MDI).As shown in Figure 1, in the Ethernet of 100Base-TX, used is the RJ-45 connector.The MDI of NIC assigns pin position 1 and 2 as transmitting (transmit pair), pin position 3 and 6 is as receiving (receive pair), and in order to satisfy aforesaid requirement, the repeater that links to each other with NIC, hub (hub) or interchanger, its configuration is then opposite with NIC, be that pin position 3 and 6 conduct transmission are right, and pin position 1 and 2 conduct receptions are right.The general configuration that Fig. 1 NIC is used is called MDI, and the used configuration of Fig. 1 hub then is called MDIX (media dependent interface crossover).
But, in LAN, NIC might directly be connected to another NIC, and hub also might be connected to another hub, so if do not adjust the configuration that media links, just can't set up online.So, just there has been the function of automatic selection MDI configuration to occur, the media configuration of its visual the other side's node and adjusting automatically, till both sides' configuration matches, that is the reception of a node (transmission) channel just is transmission (reception) channel of another node.At present existing increasing LAN equipment provides this kind to select the ability of MDI configuration automatically.
Yet, when the module of automatic selection MDI configuration when the module of automatic synchronization (auto-negotiation) operates, can under particular condition, produce and can't set up online problem.Automatic synchronization is meant function newly-increased among the IEEE802.3u herein, can allow the operating mode that obtains separately between Ethernet hub (or interchanger) and jockey to be supported, as speed (10 or 100 mbps) and multi-task state (full duplex or half-duplex) etc., use the optimal operation pattern that can both support each other of coordinating out.If equipment has activated the module of automatic selection MDI configuration and automatic synchronization simultaneously, though and coupled equipment has activated the module of automatic selection MDI configuration, transmission rate is forced at 100Mbps, so can produce special phenomena.When both MDI configurations are selected correct, just the transfer channel of an equipment is just during another person's receive channel, the automatic synchronization module can begin to carry out the action of parallel detection (parallel-detection), simultaneously also can stop to send continuous IDLE sign indicating number (IDLE code), so can allow and force equipment to activate the MDI mechanism of conversion automatically because of can not detecting signal at 100Mbps, make and cause the MDI configuration error automatic synchronization failure and can't set up online.
Summary of the invention
Main purpose of the present invention provides the automatic configuration equipment that a kind of network media links, be to carry out automatic configuration in order to media connection assembly (media connectors) to the first node device in the LAN, be to be connected between each node apparatus in this LAN by at least one first pair and one second pair of lead, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of connection assembly at least, is used for passing the receipts data.This automatic configuration equipment comprises: a media configuration module, in order to optionally to switch the connection status of this first couple and second pair of connection assembly and this first couple and second pair of lead, and receive IDLE (free time) when sign indicating number in having detected, a time out decommissions; One counter is coupled to this media configuration module, and the initial value that tool one is preset after this time out finishes, when not receiving a binding signal, adds one first value in this media configuration module; And a timer, be coupled to media configuration module and counter, set this time out according to the value of counter, the time that decommissions with control media configuration module.
Of the present invention time a purpose provides the automatic configuration equipment that a kind of network media links, carry out automatic configuration in order to media connection assembly to the first node device in the LAN, be connected by at least one first pair and one second pair of lead between each node apparatus in this LAN, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of coupling assembling at least, be used for passing the receipts data, and optionally be connected to this first couple and second pair of lead, this automatic configuration equipment comprises media configuration module, this media configuration module comprises: a media switching device shifter (media swich), respond a controlling signal and an inhibit signal with switching position optionally, when switching to a primary importance, this the first couple is connected to this first couple and second pair of lead respectively with second pair of connection assembly, and when switching to a second place, this first couple is connected to this second couple and first pair of lead respectively with second pair of connection assembly; One controlling signal generation device, produce this controlling signal, switch in this first and second position intercropping in order to control this media switching device shifter, the value of this controlling signal in each default unit interval be one first value and one second value one of them, and be to change with a predetermined way; An and processing logic, detect this first couple and second pair of binding signal that coupling assembling received, and when detecting the binding signal, one forbids that signal is set to very, deliver to this media switching device shifter, this media switching device shifter is forbidden stopping to switch during signal is true in this.
Another object of the present invention provides the automatic configuration equipment that a kind of network media links, be to carry out automatic configuration in order to media coupling assembling to the first node device in the LAN, be to be connected between each node apparatus in this LAN by at least one first pair and one second pair of lead, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of coupling assembling at least, be used for passing the receipts data, and optionally be connected to this first couple and second pair of lead, this automatic configuration equipment comprises media configuration module, this media configuration module comprises: a media switching device shifter, respond a controlling signal and an inhibit signal with switching position optionally, when switching to a primary importance, this the first couple is connected to this first couple and second pair of lead respectively with second pair of connection assembly, when switching to a second place, this the first couple is connected to this second couple and first pair of lead respectively with second pair of connection assembly, and when switching to one the 3rd position, then this first couple and neither this first couple and the second pair of lead of being connected to of the second pair of connection assembly; One controlling signal generation device, produce this controlling signal, switch in this first, second and third position intercropping in order to control this media switching device shifter, this controlling signal comprises two place values, and these two place values are to change once every a default unit interval with a predetermined way; An and processing logic, detect this first couple and second pair of binding signal that connection assembly received, and when detecting the binding signal, an output forbids that signal is set to very, give this media switching device shifter, this media switching device shifter is forbidden stopping to switch during signal is true in this.
A further object of the present invention provides the automatic configuration method that a kind of network media links, be the media connection assembly of the node apparatus in one LAN to be carried out automatic configuration by a media configuration module, wherein the media coupling assembling tool of this node apparatus plural number is planted configuration, optionally switch by this media configuration module, this method is after media configuration module comes into operation, carry out following steps: (a) whether the module check of media configuration receives the IDLE sign indicating number, if then continue following steps; (b) value according to a counter determines a time out; (c) media configuration module is suspended running in this time out; (d) this media configuration module resumes operation after this time out finishes; (e) whether this media configuration module check receives that one links signal; And (f) when this media configuration module is not received this binding signal, then this media configuration module is carried out configuration and is switched, and the value of counter is added first value.
The present invention is described in detail with specific embodiment below in conjunction with accompanying drawing, so that further understand above-mentioned purpose of the present invention, content and advantage.
Description of drawings
Fig. 1 is the schematic diagram that the media that adopted of RJ-45 connector relies on interface (MDI);
Fig. 2 is the calcspar of the automatic configuration equipment of network media binding of the present invention;
Fig. 3 is the calcspar of a media configuration module of prior art;
Fig. 4 is the calcspar of first embodiment of media configuration module of the present invention;
Fig. 5 is the action flow chart of the automatic configuration method of network media binding of the present invention.
Drawing reference numeral explanation: the automatic configuration equipment that the 2-network media links; 21-media configuration module; The 22-counter; The 23-timer; The 24-RJ-45 connector; 211-media switching device shifter; The 2111-contact; It is right that 2112-transmits; It is right that 2113-receives; 212a-controlling signal generation device; 212b-controlling signal generation device; The linear offset buffer of feedbacking of 2121-; The 2122-adder; The 213-processing logic; The action flow chart of the automatic configuration method that 50～58-network media links.
Embodiment
The automatic configuration equipment that network media of the present invention links is described in detail in detail below,, makes mode in fact,, increase implementary value to deepen technical connotation of the present invention with two preferred embodiment narrations then at the media configuration module in this automatic configuration equipment.Last describe in detail again as how this automatic configuration equipment implement the automatic configuration method that network media of the present invention links.
Need emphasize earlier that herein though the following description is an example with the MDI/MDIX of Ethernet, notion of the present invention and technical connotation are when being not limited thereto.As long as in the LAN, be to be connected between each node apparatus by at least two pairs of leads, and these two pairs of leads transmit data according to opposite directions, node apparatus itself then has two pairs at least and is used to pass the media coupling assembling of receiving data, optionally be connected to this two pairs of leads, so then all can use device and method of the present invention.
See also Fig. 2, it is the calcspar of the automatic configuration equipment 2 of network media binding of the present invention.This automatic configuration equipment 2 can carry out automatic configuration in order to the media coupling assembling to the node apparatus in the Ethernet, this automatic configuration equipment 2 comprises: a media configuration module 21, in order to the MDI/MDIX configuration of switching node device optionally, and receive IDLE (free time) when sign indicating number in having detected, a time out decommissions; One counter 22 is coupled to media configuration module 21, the initial value that tool one is default, and in media configuration module 21 after this time out finishes, do not receive when linking signal, add one first value; And a timer 23, be coupled to media configuration module 21 and counter 22, set this time out according to the value of counter 22, the time that decommissions with control media configuration module 21.
As described in background of invention, when an equipment has activated media configuration module 21 and automatic synchronization module simultaneously, and the device activation that joins with it media configuration module 21 but transmission rate when being forced to 100Mbps, if both MDI select correct, then the equipment of stuck-at-00Mbps can activate the MDI mechanism of conversion automatically because of detecting less than the IDLE sign indicating number, causes online failure.So main concept of the present invention promptly is to allow media configuration module 21 in detecting when receiving the IDLE sign indicating number, decommissions one period that can dynamically adjust (being time out), so that parallel detection subsequently can correctly be operated.
As for how dynamically adjusting time out, then be to utilize counter 22 and timer 23.Counter 22 records how many times " after entering parallel detection, but can't finish whole trace routine ", adjusts timer 23 with this numerical value, and how long decision will be waited for.For for simplicity, the initial value of counter can be made as zero, and make that first value is one.Can't finish trace routine as for how to learn, then be to utilize parallel detection if do not finish smoothly, can make receive channel can't receive the binding signal.So on behalf of whole trace routine, media configuration module 21 if do not receive the binding signal yet, promptly do not finish in the time out end and after resuming operation, and counter 22 must be increased progressively one, to prolong time out.The alleged binding signal of the present invention is that expression one links (link) and sets up, and it comprises multiple possible signal, looks employed Ethernet technology and difference is arranged.The number of times that takes place along with special status increases, and the time of time-out will be long more, also therefore allows parallel detection have many more time can finish its running.
The function of media configuration module 21 promptly is to switch in the intercropping of MDI/MDIX configuration automatically, as for how to switch, according to what switches in proper order, does not influence automatic configuration equipment 2 its functions of performance.But, the present invention proposes two preferred embodiments of media configuration module 21 in this, with further lifting value of the present invention.Before proposing these two embodiment, see the practice (U.S. Pat 6,175,865) of a prior art earlier: see also Fig. 3, it is the calcspar of a media configuration module 21 of prior art.As shown in Figure 3, media configuration module 21 comprises: a media switching device shifter 211; One controlling signal generation device 212; And a processing logic 213, be coupled to media switching device shifter 211 and controlling signal generation device 212.
The contact (contact) 2111 that has four changeable upper-lower positions in the media switching device shifter 211, as shown in the figure.When switching to when top, transmit the pin position 1 and 2 that promptly is connected to RJ-45 connector 24 to 2112, reception is to the 2113 pin positions 3 and 6 that promptly are connected to RJ-45 connecting pin 24, and this is the configuration of MDI; Switch to when below, transmit 2112 pin positions 3 and 6 that are connected to RJ-45 connecting pin 24, reception is promptly changed into the MDIX configuration to the 2113 pin positions 1 and 2 that are connected to RJ-45 connecting pin 24.Media switching device shifter 211 is controlling signal that response controlling signal generation device 212 is produced, and processing logic 213 produced one forbid signal, and optionally switch upper-lower position.
Processing logic 213 detects the binding signal that receives in 2113, is about to this and forbids that signal is set at very when detecting, and delivers to media switching device shifter 211, and media switching device shifter 211 forbids that in this signal is to stop to switch during very.Owing to receive the binding signal, expression MDI operating mode is selected correct, switches so must forbid media switching device shifter 211, and is online normal to keep.
As for controlling signal generation device 212,, produce this controlling signal then in the mode of a pseudorandom (pseudo-random).Its purpose is, allows any two tools select the network equipment of MDI configuration function automatically, can switch the MDI/MDIX configuration with different order, avoids both to cause because of transfer sequence is identical can't reaching to correct selection mode.It as rule is, utilize linearity back coupling offset buffer (the linear feedback shift register) 2121 and the adder 2122 of 11 positions of tool in the controlling signal generation device 212, connect in mode shown in Figure 3, every through a default unit interval (being controlled by the clock pulse generation device that does not show on the figure in addition), the highest order that is about to buffer 2121 is sent into adder 2122 and processing logic 213 simultaneously.Adder 2122 is about to the highest order and position 8 additions of buffer 2121, feedbacks to position 0 again.213 values according to the highest order of buffer 2121 of processing logic are controlled the position of contact 2111 in the media switching device shifter 211, switch to the top in the time of can setting the highest order value for logical one, then cut to the below during logical zero.
The pseudorandom mechanism attempt of this kind avoids any two equipment transfer sequences identical, but with regard to pseudorandom feature, when beginning to do the MDI selection as if two equipment, its preference pattern is just identical, then use any pseudorandom generation device, all may in finite time, can't reach correct selection.Therefore, first embodiment of media configuration module 21 of the present invention promptly gives up the demand for the pseudorandom circuit, and utilize an initial value, decide transfer sequence in the mode that recycles, so can save the circuit that produces pseudorandom numerical value, and have close fail safe.
First embodiment of media configuration module 21
See also Fig. 4, it is the calcspar of first embodiment of media configuration module 21 of the present invention.Compare with Fig. 3, be easy to just can find, Fig. 4 just gives up the pseudorandom circuit of Fig. 3, that is without adder 2122, directly the highest order of buffer 2121 is feedback to lowest order, also this highest order is sent into processing logic 213 simultaneously.On real the work, set up a counter in the network equipment, the value of this counter is according to the RC time constant of reopening machine (power-on reset) (RC time constant).We can set this network equipment when preparing to come into operation, and the value that is about to this counter writes buffer 2121, as the part of its initial value.Because the physical characteristic of assembly can make the RC time constant that each equipment had that a little difference is all arranged, this difference just is enough to make the value of this counter different because of each equipment, that is the value of this counter has characteristic at random.So wantonly two network equipments that connect are after the start running, the initial value of its buffer 2121 is neither identical, so can significantly reduce the probability that two equipment switch with same sequence.Then, promptly utilize the initial value of buffer 2121,, change once every a unit interval according to position height order.All the other make the situation of rule with Fig. 3.
Second embodiment of media configuration module 21
Different with first embodiment, second embodiment then outside two kinds of selections of existing biography receipts, adds the third, makes the media configuration more diversified.This third selection promptly is that two channels of biography receipts all are the states that decommissions simultaneously, so can allow residual signal on line remove, and avoids the overlapping phenomenon of signal when exchanging.
On real the work, the third is selected promptly is to allow media switching device shifter 211 interior contacts 2111 not contact any pin position of RJ-45 connector 24.Because three kinds of configurations are arranged, comprise two place values so controlling signal is set at, as for how corresponding between configuration and place value, there is no particular restriction.For example, " 01 " can be corresponded to that MDI configuration, " 10 " correspond to the MDIX configuration, " 00 " corresponds to the third configuration, " 11 " then correspond to and keep original configuration, do not switch.
How to produce this controlling signal about controlling signal generation device 212, can adopt the used pseudo-random fashion of aforesaid U.S. Patent US 6,175,865, or first embodiment recycles the mode of buffer initial value, so also unrestricted.Include the third configuration in process range as for 213 need of processing logic, and cooperate the controlling signal producing method to do the corresponding modification design, only manner of execution does not then have too big difference.
The device 2 that how to utilize Fig. 2 then is described in detail in detail implements the automatic configuration method that network media links.See also Fig. 5, it is the action flow chart of the automatic configuration method of network media binding of the present invention.As shown in Figure 5, the method includes the steps of:
50: media configuration module 21 comes into operation;
51: media configuration module 21 response one controlling signal and inhibit signals, optionally carry out configuration and switch;
52: whether media configuration module 21 inspection receives the IDLE sign indicating number, if then continue following steps, and rebound step 51 then if not;
53: the value according to counter 22 determines a time out;
54: media configuration module 21 decommissions in this time out;
55: media configuration module 21 resumes operation after this time out finishes;
56: whether 21 inspections of media configuration module are received and are then continued following steps if not by the binding signal, if then skip to step 58;
57: media configuration module 21 is carried out the configuration switching, and the value of counter 22 is added one first value, and rebound step 51 continues to carry out again; And
58: the network on-line normal operation.
The media configuration that switch in this place, can as only comprise two kinds of MDI and MDIX, also second embodiment comprises the third configuration as described above, so there is no particular restriction.As for controlling signal in the step 51 and forbid the generation and the manner of execution of signal, then can aforementioned any practice implement, also unrestricted.
In the step 50, when media configuration module 21 came into operation, counter 22 was tool one initial value.For simplicity, this initial value can be made as zero, and this first value of step 57 is decided to be one.
Additional disclosure be, after step 58 confirms that network on-line is normal, link signal because media configuration module 21 can continue to have detected to receive, be made as very so can continue to forbid signal, to avoid carrying out the configuration switching.If there is specific factor (as pulling out grid line) to cause online interruption, then media configuration module 21 can will forbid that signal is made as vacation because of not receiving the binding signal, and recovers the action that configuration is switched afterwards.Also can in automatic configuration equipment 2, set up a timer herein, reset signal, media configuration module 21 whole restarting behind online interruption one special time be operated, but, will not give unnecessary details because of not having direct correlation with the present invention in order to produce one.
The above is to utilize preferred embodiment to describe the present invention in detail, but not limits the scope of the invention.Those of ordinary skill in the art will be appreciated that, suitably does slightly change and adjustment, will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention.

Claims (10)

1. the automatic configuration equipment that links of a network media, carry out automatic configuration in order to media connection assembly to the first node device in the LAN, be to be connected between each node apparatus in this LAN by at least one first pair and one second pair of lead, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of connection assembly at least, be used for transmitting and the reception data, and optionally be connected to this first couple and second pair of lead, this automatic configuration equipment comprises a media configuration module, and this media configuration module comprises:
One media switching device shifter, respond a controlling signal and an inhibit signal with switching position optionally, when this media switching device shifter switches to a primary importance, this the first couple is connected to this first couple and second pair of lead respectively with second pair of connection assembly, and when this media switching device shifter switches to a second place, this first couple is connected to this second couple and first pair of lead respectively with second pair of connection assembly;
One controlling signal generation device, produce this controlling signal, switch in this first and second position intercropping in order to control this media switching device shifter, the value of this controlling signal in each default unit interval be one first value and one second value one of them, and be to change with a predetermined way; And
One processing logic, detect this first couple and second pair of binding signal that connection assembly received, and when detecting the binding signal, one forbids that signal is set to very, deliver to this media switching device shifter, this media switching device shifter is forbidden stopping to switch during signal is true in this.
2. automatic configuration equipment as claimed in claim 1, wherein this controlling signal generation device also comprises a counter, and change the predetermined way of the value of this controlling signal, be with one group of value with sequencing in regular turn varying cyclically carry out, wherein the value of this group with sequencing comprises the value of counter.
3. the automatic configuration equipment that links of a network media, carry out automatic configuration in order to media connection assembly to the first node device in the LAN, be to be connected between each node apparatus in this LAN by at least one first pair and one second pair of lead, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of connection assembly at least, be used for transmitting and the reception data, and optionally be connected to this first couple and second pair of lead, it is characterized in that, this automatic configuration equipment comprises a media configuration module, and this media configuration module comprises:
One media switching device shifter, respond a controlling signal and an inhibit signal with switching position optionally, when this media switching device shifter switches to a primary importance, this the first couple is connected to this first couple and second pair of lead respectively with second pair of connection assembly, when this media switching device shifter switches to a second place, this the first couple is connected to this second couple and first pair of lead respectively with second pair of connection assembly, and when this mediation device switches to one the 3rd position, then this first couple and neither this first couple and the second pair of lead of being connected to of the second pair of connection assembly;
One controlling signal generation device, produce this controlling signal, switch in this first, second and third position intercropping in order to control this media switching device shifter, this controlling signal comprises two place values, and these two place values are to change once every a default unit interval with a predetermined way; And
One processing logic, detect this first couple and second pair of binding signal that connection assembly received, and when detecting the binding signal, an output forbids that signal is set to very, give this media switching device shifter, this media switching device shifter is forbidden stopping to switch during signal is true in this.
4. automatic configuration equipment as claimed in claim 3 wherein changes this predetermined ways of these two place values of this controlling signal, is to change in regular turn with one group of value that has according to position height order to carry out.
5. the automatic configuration equipment that links of a network media, carry out automatic configuration in order to media connection assembly to the first node device in the LAN, be to be connected between each node apparatus in the LAN by at least one first pair and one second pair of lead, and this first couple and second pair of lead transmit data according to opposite directions, this first node device then has one first pair and one second pair of connection assembly at least, be used for transmitting and the reception data, it is characterized in that this automatic configuration equipment comprises:
One media configuration module, in order to optionally switching the connection status of this first couple and second pair of connection assembly and this first couple and second pair of lead, and in having detected when receiving the IDLE sign indicating number, a time out decommissions;
One counter is coupled to this media configuration module, the initial value that tool one is default, and configuration be in this media configuration module after this time out finishes, when not receiving a binding signal, add one first value; And
One timer is coupled to this media configuration module and this counter, sets this time out according to the value of counter, to control the time that media configuration module decommissions.
6. automatic configuration equipment as claimed in claim 5, wherein this first node device comprise following both one of them: as a MDI adapter of a terminal node device, and as the MDIX of the part of a repeater or interchanger.
7. the automatic configuration method that links of a network media, by a media configuration module media connection assembly of the node apparatus in one LAN is carried out automatic configuration, wherein the media connection assembly tool of this node apparatus plural number is planted configuration, optionally switch by this media configuration module, it is characterized in that, this method is after this media configuration module comes into operation, and carries out following steps:
(a) whether this media configuration module check receives the IDLE sign indicating number, if then continue following steps;
(b) value according to a counter determines a time out;
(c) this media configuration module is suspended running in this time out;
(d) this media configuration module resumes operation after this time out finishes;
(e) whether this media configuration module check receives that one links signal; And
(f) when this media configuration module is not received this binding signal, then this media configuration module is carried out the configuration switching, and the value of counter is added first value.
8. automatic configuration method as claimed in claim 7 is characterized in that, step (a) also comprises a step (a0):
(a0) this media configuration module responds one controlling signal and an inhibit signal are optionally carried out configuration and are switched.
9. automatic configuration method as claimed in claim 8, after wherein step (f) value that also is contained in this counter added this first value, rebound step again (a0) continued to carry out.
10. automatic configuration method as claimed in claim 7 wherein should plural number kind configuration comprise a MDI configuration and a MDIX configuration.
CNB021322856A 2002-09-04 2002-09-04 Automatic configuration equipment for linking network media and its method Expired - Lifetime CN100466566C (en)

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