CN100496001C - Device and method for duplexing and deduplexing physical layer of Ethernet - Google Patents
Device and method for duplexing and deduplexing physical layer of Ethernet Download PDFInfo
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Abstract
A device of Ethernet network physical layer multiplexing and relieve multiplexing, including: the physical layer signal and the MAC layer signal transform the unit, the signal multiplexing and the relieve multiplexing mutually. The invention provides a method to achieve Ethernet network physical layer multiplexing and relieve multiplexing by the device, it includes: in the upward direction, transform at least two low speed physical layer signals to the corresponding low speed MAC layer signal; set and save the sign of the port; multiply a high speed MAC layer signal by time-division way; in the downward direction, relieve multiplexing the MAC layer high speed signal to at least two MAC low speed signal; read the MAC layer low speed signal and the port sign in the low speed signal by the low speed clock signal, and output the MAC layer low speed signal from the corresponding downward port according to the every port sign confirm the corresponding downward port. The invention can achieve the aim that one or few high speed upward port which correspond some low speed downward physical interface.
Description
Technical field
The present invention relates to the ethernet physical layer information processing, relate in particular to a kind of ethernet physical layer multiplexing and Deplexing apparatus and method.
Background technology
The specification that physical layer in the market inserts chip has 10/100M self adaptation, GE (GigabitEthernet, gigabit Ethernet) and 10GE etc.The major function of this class chip is to finish the encoding and decoding of physical layer, mould/number conversion, clock recovery and simulation amplification etc., and physical layer signal is converted into the MAC layer signal.With common 8 port one 00M physical chips is example, its internal structure is illustrated in fig. 1 shown below, and comprises 8 FE (Fast Ethernet, the Fast Ethernet) analog interface to physical layer, 8 FE digital interfaces to MAC (MediaAccess Control, medium access control) layer.As can be seen from Figure 1, the interface rate of these chip both sides all mates, i.e. the MAC layer digital interface of the corresponding FE of the physical layer analog interface of a FE.
The internal structure block diagram of this chip such as following shown in Figure 2, comprise: 8 analog interface units 21,8 A/D converters 22,8 clocks and coding and decoding unit 23,8 MAC layer interface processing units 24 and 8 digital interface unit 25, physical layer signal enters physical layer multiplex/demultiplexing chip from described analog interface 21, is digital signal by A/D converter 22 with analog signal conversion, and carry out the extraction and the decoding processing of clock through oversampling clock and coding/decoding unit 23, from the code signal of physical layer, extract the data message and the clock signal of MAC layer, be the MAC layer signal form of identical specification by MAC layer interface processing unit 23 with decoded conversion of signals then, send to the MAC layer by digital interface unit 25 at last.As can be seen from Figure 2, digital interface unit 25 numbers of the analog interface unit 21 of physical layer and MAC layer are one to one, and inner theory diagram is divided into 8 the tunnel to be realized.Just in time opposite to the flow process of the digital interface of MAC layer from the digital interface of MAC layer to the flow process of the analog interface of physical layer with analog interface from physical layer, the signal from digital interface unit 25 of MAC layer enters the ethernet physical layer chip, obtain the physical layer signal form of the required different specification of each physical port through MAC layer interface processing unit 23, encode by clock and coding/decoding unit 23, and be transformed to analog signal by A/D converter 22, send to physical layer by analog interface unit 21 at last.
Along with the continuous development of chips of Ethernet exchange technology, broadband access is a technology trends, and in the broadband access field, the average bandwidth that each household inserts is lower, can satisfy broadband access application 80% or more such as the access bandwidth of 10M.But the MAC layer chip that present Ethernet product adopts deflection enterprise network market, the access speed of every port all is 100M or 1G/10G, when this MAC layer chip and above-mentioned physical layer multiplex chip application are in broadband access, because each user needs a corresponding port, so just caused bandwidth waste to a great extent.
Summary of the invention
The problem that the present invention solves provides a kind of ethernet physical layer multiplexing and Deplexing apparatus and method, to solve in the prior art shortcoming that a MAC layer port can only a corresponding physical layer port.
For addressing the above problem, the invention provides a kind ofly, may further comprise the steps:
The physical layer signal converting unit is used to receive physical layer low-speed signal more than a tunnel, and every road low speed signal is converted to MAC floor low speed signal;
The signal multiplexing unit is used to receive the MAC layer low speed signal that described physical layer signal converting unit is exported, and every road low speed signal is provided with port label, and the multi-path low speed signal is multiplexing by the time-division multiplex mode, exports one road MAC floor height speed signal.
Described signal multiplexing unit comprises: port label is provided with subelement, port label storing sub-units and first storing sub-units at random,
Described port label is provided with subelement and is used to every road low speed signal that port label is set;
Described port label storing sub-units is used to store the port label that every road low speed signal is provided with;
Described first at random storing sub-units to be used for the time slot be that unit storage is provided with the low speed signal of port label, and under the driving of high-speed clock signal, read one road MAC floor height speed signal.
Described port label is according to the input physical port setting of described signal multiplexing unit or according to the service feature setting of importing low speed signal.
Described port label is pressed the Frame of low speed signal or is pressed the fixed data length setting of low speed signal.
Described high-speed clock signal is obtained by the low-speed clock frequency multiplication of extracting from low speed signal, or is directly obtained by clock generation circuit.
The present invention also provides a kind of ethernet physical layer Deplexing apparatus, comprising:
Demultiplexing unit receives MAC floor height speed signal, is low-rate signal with MAC floor height speed signal demultiplexing, and according to the port label in the low speed signal, determines descending transmit port;
MAC layer signal converting unit receives the low-rate signal that described demultiplexing unit is sent, and is physical layer signal with this conversion of signals, and sends to physical layer.
Described demultiplexing unit comprises: port label judgment sub-unit and second is storing sub-units at random;
Described port label judgment sub-unit is according to the port label that receives in the high speed signal, and determines the downstream signal port by searching described port label corresponding port information;
Described second at random storing sub-units be used for the storing high-speed signal, read two-way low speed signal at least by the driving of low-speed clock signal, send in the MAC layer signal converting unit corresponding downstream signal port.
Described low-speed clock signal is obtained by the low-speed clock that extracts the low speed signal of sending from physical layer, or is directly obtained by clock generation circuit.
The present invention also provides a kind of ethernet physical layer multiplexing and Deplexing apparatus, comprising: physical layer signal and the mutual converting unit of MAC layer signal, signal multiplexing demultiplexing unit;
Physical layer signal and the mutual converting unit of MAC layer signal are used to receive physical layer low-speed signal more than a tunnel, and every road low speed signal is converted to MAC floor low speed signal and exports to described signal multiplexing demultiplexing unit; Also be used to receive the low-rate signal that described multiplexing and demultiplexing unit is sent, be physical layer signal with this conversion of signals and send to physical layer;
The signal multiplexing demultiplexing unit, be used to receive the MAC layer low speed signal of described physical layer signal and the mutual converting unit output of MAC layer signal, after every road low speed signal is provided with port label, the multi-path low speed signal is multiplexing by the time-division multiplex mode, export one road MAC floor height speed signal; Also be used to receive MAC floor height speed signal, be low-rate signal with the high speed signal demultiplexing, and, determine descending transmit port according to the port label in the low speed signal.
The invention provides a kind of ethernet physical layer multiplexing method, comprising:
A, at least two low-rate physical layer signals of general are converted to corresponding low rate MAC layer signal;
B, described low rate MAC layer signal is provided with port label, and stores this port label;
C, each road low rate MAC layer signal that will have a port label are multiplexed with one tunnel two-forty MAC layer signal with time division way.
Step C comprises:
With the time slot is the low rate MAC layer signal that the unit storage is provided with port label;
Read one tunnel two-forty MAC layer signal with high-speed clock signal.
The invention provides a kind of ethernet physical layer Deplexing method, comprising:
Receive and store one road MAC floor height speed signal;
The MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
Read MAC layer low speed signal and port label wherein with low-speed clock signal, determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port according to each port label.
The invention provides a kind of ethernet physical layer multiplexing and demultiplexing method, comprising:
At up direction,
At least two low-rate physical layer signals are converted to corresponding low rate MAC layer signal;
Described low rate MAC signal is provided with port label, and stores this port label;
The multi-path low speed rate MAC layer signal that will have port label is multiplexed with one tunnel two-forty MAC layer signal with time division way;
At down direction,
Receive and store one road MAC floor height speed signal;
The MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
Read port label in MAC layer low speed signal and the low speed signal with low-speed clock signal, determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port according to each port label.
Compared with prior art, the present invention has the following advantages:
Device of the present invention has increased the signal multiplexing demultiplexing unit in existing physical chip, reach one or a few two-forty to last interface, corresponding a plurality of low rate downlink physical interfaces.Method of the present invention is exactly multiplexing by what the multichannel physical layer was imported, in the physical port input of up direction with the multi-path low speed rate, is multiplexed into the MAC layer corresponding interface of a two-forty, stamps multiplexing mark when multiplexing, and carry out source port study.At down direction, will by label lookup, send to corresponding downlink physical port from the MAC layer of a two-forty business to last interface, finish the function of demultiplexing.Thereby reach one or a few two-forty to last interface, the purpose of corresponding a plurality of low rate downlink physical interfaces.
Description of drawings
Fig. 1 prior art ethernet physical layer multiplexing and demultiplexing chip view;
Fig. 2 is the cut-away view of ethernet physical layer multiplexing and demultiplexing chip among Fig. 1;
Fig. 3 is the structure chart of ethernet physical layer multiplexer of the present invention;
Fig. 4 is the cut-away view of signal multiplexing unit among Fig. 3;
Fig. 5 is the structure chart of ethernet physical layer Deplexing apparatus of the present invention;
Fig. 6 is the cut-away view of signal demultiplexing unit among Fig. 5;
Fig. 7 is the structure chart of ethernet physical layer apparatus for multiplexing and demultiplexing of the present invention;
Fig. 8 is the cut-away view of signal multiplexing demultiplexing unit among Fig. 7;
Fig. 9 is the flow chart of ethernet physical layer multiplexing method;
Figure 10 is the flow chart of ethernet physical layer Deplexing method.
Embodiment
Ethernet physical layer multiplexer of the present invention comprises physical layer signal converting unit 31, signal multiplexing unit 32 and digital interface unit 33 as shown in Figure 3.Described physical layer signal converting unit 31 receives physical layer low-speed signal more than a tunnel, handles by every road signal being carried out analog-to-digital conversion, Clock Extraction, decoding and MAC interface, and be corresponding MAC floor low speed signal with every road physical layer low-speed conversion of signals; Described signal multiplexing unit 32 receives the MAC layer low speed signal of described physical layer signal converting unit 31 outputs, and every road MAC floor low speed signal be provided with port label, and the multi-path low speed signal that port label will be set is multiplexed with one road MAC floor height speed signal by the time-division multiplex mode, sends to the MAC layer by digital interface unit 33.
Wherein, the internal structure of signal multiplexing unit 32 comprises as shown in Figure 4: port label is provided with subelement 321, port label storing sub-units 322 and first storing sub-units 323 at random.Described port label is provided with subelement 321 and is used to every road MAC floor low speed signal that port label is set; Described port label storing sub-units 322 is used to store the port label that every road low speed signal is provided with; Described first at random storing sub-units 323 to be used for the time slot be that unit storage is provided with the MAC layer low speed signal of port label, and under the driving of high-speed clock signal, read one road MAC floor height speed signal.Described high-speed clock signal can obtain by the low-speed clock frequency multiplication of extracting from the physical layer low-speed signal, also can directly be obtained by clock generation circuit.
Described port label is according to the input physical port setting of described signal multiplexing unit or according to the service feature setting of importing low speed signal.After the Ethernet data traffic frame enters this ethernet physical layer multiplexer from the physical layer signal converting unit 31 of up direction, according to configuring condition, the port label in the signal multiplexing unit 32 is provided with subelement 321 and at first is provided with and the corresponding unique port mark of input physical port.The input port mark can be the privately owned mark that the input physical port is provided with, and also can be the service feature VLAN mark of input ethernet data frame.322 pairs of port label of port label storing sub-units are stored then, set up the one-to-one relationship between mark and the physical port.For example, in the vlan domain, if input data frame does not carry the VLAN label, so just the situation according to corresponding input physical port is provided with the good VLAN label of configured in advance, and remembers which downlink physical inbound port this VLAN label belongs in ethernet data frame.At the situation of using the VLAN mark,, can replace original VLAN label again according to configuration so, or one deck VLAN mark is set again in underlined front if the Frame of input itself has carried the VLAN label; Also can admit the VLAN label that itself carries.
With 8 port physical layer multiplexers is example, supposes that 8 physical layer low-speed signals are the FE signal, all is 100M, and MAC floor height speed signal is 1 GE.The Frame of coming in from first 100M physical port so, signal multiplexing unit can be in the positions of its VLAN, and that stamps a VLAN=1 goes into the physical port mark, and remembers that the Frame of VLAN=1 corresponds to first 100M physical port; The corresponding Frame of coming in from second 100M physical port, signal multiplexing unit can be in the positions of its VLAN, and that stamps a VLAN=2 goes into the physical port mark, and remembers that the Frame of VLAN=2 corresponds to second 100M physical port; By that analogy.Beaten the later Frame of mark, sent from the GE port, because GE port can pass the Frame of 10 Fast Ethernet port, so the Frame of these 8 Fast Ethernet port can send from a GE port by the time-division multiplex mode.
In multiplexing process, described port label also can be provided with by the fixed data length of low speed signal.Only need be with mark just passable before each regular length.Such as the ethernet data frame of one 1500 byte, the front that under the normal condition is whole Frame is provided with an input physical port mark, but also can be according to a regular length, send to up multiplexing port as mark of per 500 bytes from three physical ports, the benefit of this way is can reduce multiplexing and storage pressure demultiplexing module.
Though above is that one road MAC floor height speed signal is the example explanation with 8 road physical layer low-speed signal multiplexings, the present invention is not limited to this.Can be that multichannel physical layer low-speed signal multiplexings such as 2 tunnel, 4 road or 16 tunnel are one road MAC floor height speed signal, also can be that the multi-path low speed signal multiplexing is several roads high speed signals, thereby realize one or a few at a high speed to last interface, corresponding a plurality of low speed downlink physical interfaces.
Ethernet physical layer Deplexing apparatus of the present invention comprises: MAC layer signal converting unit 41, signal demultiplexing unit 42 and digital interface unit 43, and described signal demultiplexing unit 42 receives from MAC floor height speed signal by described digital interface unit 43; Described signal demultiplexing unit 42 is a MAC layer low-rate signal with MAC floor height speed signal demultiplexing, and according to the port-mark in the low speed signal, determines descending transmit port; Described MAC layer signal converting unit receives the low-rate signal that described demultiplexing unit is sent, and is physical layer signal with this conversion of signals, and sends to physical layer.
Described signal demultiplexing unit 42 comprises: port label judgment sub-unit 411 and second is storing sub-units 412 at random; Described second at random storing sub-units 412 be used to store MAC floor height speed signal from digital interface unit 43, described port label judgment sub-unit 411 is according to the port label that receives in the high speed signal, and determines the downstream signal port by the information of searching in the described port label storing sub-units 322; And read two-way low speed signal at least by the driving of low-speed clock signal, send to downstream signal port corresponding in the MAC layer signal converting unit 41.Described low-speed clock signal is obtained by the low-speed clock that extracts the low speed signal of sending from physical layer, or is directly obtained by clock generation circuit.
After Fast Ethernet data service frame enters this ethernet physical layer Deplexing apparatus from MAC layer uplink port, determine downlink port according to mark after, send from the corresponding downstream physical port.When sending,, remove port label or carry port label according to configuring condition.Such as the VLAN label of the Frame of coming in according to uplink port, find out the corresponding sending terminal mouth after, can carry the VLAN label, also can remove the VLAN label.
With with the corresponding physical layer Deplexing apparatus of above-mentioned 8 port physical layer multiplexers be example, the MAC floor height speed Frame that gets off from the GE port must carry port label, just must carry the concrete numerical value of VLAN.Deplexing apparatus sends it to corresponding physical port according to the numerical value of VLAN, sends to first physical port as the Frame of VLAN=1, and the Frame of VLAN=2 sends to second physical port or the like.The process that sends from concrete physical port, remove privately owned mark, as after removing inner privately owned VLAN numerical value, send from corresponding physical port.Thereby finish the demultiplexing process of GE port to 8 Fast Ethernet port.
Above-mentioned physical layer multiplex Deplexing apparatus is gathered together, can form the multiplexing and Deplexing apparatus of a kind of ethernet physical layer, with the multiplexing and demultiplexing between two-way physical layer low-speed signal and one road MAC floor height speed signal is example, as shown in Figure 7, comprising: analog interface unit 61, D/A conversion unit 62, AD conversion unit 63, decoding unit 64, coding unit 65, MAC interface processing unit 66, signal multiplexing demultiplexing unit 67 and digital interface unit 68;
At up direction, described two-way physical layer low-speed signal enters the multiplexing and Deplexing apparatus of ethernet physical layer through analog interface unit 61 respectively, become low speed digital signal by AD conversion unit 62 by the low speed analog signal conversion, pass through the decoding processing of decoding unit 64 again, enter MAC interface processing unit 66, form MAC layer low speed digital signal; Described signal multiplexing demultiplexing unit 67 receives described MAC layer low speed signal, and described MAC layer low speed signal be provided with port label, with time division multiplexing mode two-way MAC floor low speed signal is multiplexed with one road MAC floor height speed signal, sends to the MAC layer by digital interface unit 68 at last.
At down direction, described signal multiplexing demultiplexing unit 67 receives from one road MAC floor height speed signal by digital interface unit 68, and demultiplexing is a two-way MAC layer low-rate signal, and according to port-mark, determines transmit port; MAC interface processing unit 66, coding unit 65, D/A conversion unit 63 and analog interface unit 61 by correspondence sends to physical layer successively.
Wherein the internal structure of signal multiplexing demultiplexing unit as shown in Figure 8, comprise that port label is provided with subelement 671, first storing sub-units 672, port label storing sub-units 673, port label judgment sub-unit 674 and second storing sub-units 675 at random at random, described port label is provided with subelement 671 and is used to every road low speed signal that port label is set; Described port label storing sub-units 673 is used to store the port label that every road low speed signal is provided with; Described first at random storing sub-units 672 to be used for the time slot be that unit storage is provided with the low speed signal of port label, and read one road MAC floor height speed signal under the driving by high-speed clock signal.Described port label judgment sub-unit 674 is according to the port label that receives in the high speed signal, and determines the downstream signal port by the information of searching in the described port label storing sub-units 673; Described second at random storing sub-units 675 be used for the storing high-speed signal, read two-way low speed signal at least by the driving of low-speed clock signal, send in the MAC layer signal converting unit corresponding downstream signal port.
Wherein said analog interface unit 61, D/A conversion unit 62, AD conversion unit 63, decoding unit 64, coding unit 65, MAC interface processing unit 66, signal multiplexing demultiplexing unit 67 have been formed physical layer signal and MAC layer signal converting unit, also can be the conglomerates of physical layer signal converting unit and MAC layer signal converting unit in the foregoing description.
Analog input port in the ethernet physical layer apparatus for multiplexing and demultiplexing of the present invention, D/A conversion unit, coding and decoding unit and MAC layer data processing unit are corresponding one by one, wherein, D/A converting circuit and analog to digital conversion circuit can integrate, and also can be separative element; Decoding unit and coding unit can integrate, and also can be separative element; Signal multiplexing unit and signal demultiplexing unit can integrate, and also can be separative element.
A kind of ethernet physical layer multiplexing method of the present invention as shown in Figure 9, comprising:
S101, at least two low-rate physical layer signals of general are converted to corresponding low rate MAC layer signal;
S102, described low rate MAC signal is provided with port label, and stores this port label;
S103, with the time slot MAC layer signal low-rate signal that the unit storage is provided with port label;
S104, read one road MAC floor height speed signal with high-speed clock signal.
A kind of ethernet physical layer Deplexing method of the present invention as shown in figure 10, comprising:
S201, reception and store M AC floor one road high speed signal;
S202, the MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
S203, read MAC layer low speed signal and port label wherein, determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port according to each port label with low-speed clock signal.
A kind of ethernet physical layer multiplexing and demultiplexing method of the present invention comprises:
At up direction,
At least two low-rate physical layer signals are converted to corresponding low rate MAC layer signal;
Described low rate MAC signal is provided with port label, and stores this port label;
With the time slot is the MAC layer signal low-rate signal that the unit storage is provided with port label;
The low rate MAC layer signal that will have port label is multiplexed with one tunnel two-forty MAC layer signal with time division way;
At down direction,
Receive and store M AC floor one road high speed signal;
The MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
Read port label in MAC layer low speed signal and the low speed signal with low-speed clock signal, determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port according to each port label.
In addition, the present invention is not limited to this.For in other network, for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, the method for employing also belongs to protection scope of the present invention.
Claims (10)
1, a kind of ethernet physical layer multiplexer is characterized in that, comprising:
The physical layer signal converting unit is used to receive physical layer low-speed signal more than a tunnel, and every road low speed signal is converted to MAC floor low speed signal;
The signal multiplexing unit is used to receive the MAC layer low speed signal that described physical layer signal converting unit is exported, and every road low speed signal is provided with port label, and the multi-path low speed signal is multiplexing by the time-division multiplex mode, exports one road MAC floor height speed signal;
Described signal multiplexing unit comprises:
Port label is provided with subelement, is used to every road low speed signal that port label is set;
The port label storing sub-units is used to store the port label that every road low speed signal is provided with;
First storing sub-units at random, being used for the time slot is that the unit storage is provided with the low speed signal of port label, and reads one road MAC floor height speed signal under the driving of high-speed clock signal.
2, ethernet physical layer multiplexer according to claim 1 is characterized in that: described port label is provided with according to the input physical port of described signal multiplexing unit or according to the service feature setting of input low speed signal.
3, ethernet physical layer multiplexer according to claim 1 is characterized in that: the fixed data length that described port label is pressed the Frame of low speed signal or pressed low speed signal is provided with.
4, ethernet physical layer multiplexer according to claim 1, it is characterized in that: described high-speed clock signal is obtained by the low-speed clock frequency multiplication of extracting from low speed signal, or is directly obtained by clock generation circuit.
5, a kind of ethernet physical layer Deplexing apparatus is characterized in that, comprising:
Demultiplexing unit receives MAC floor height speed signal, is low-rate signal with MAC floor height speed signal demultiplexing, and according to the port label in the low speed signal, determines descending transmit port;
Described demultiplexing unit comprises:
The port label judgment sub-unit is determined the port label in the low speed signal, and determines the downstream signal port by searching described port label corresponding port information;
Second storing sub-units at random is used for the storing high-speed signal, reads two-way low speed signal at least by the driving of low-speed clock signal, and sends to downstream signal port corresponding in the MAC layer signal converting unit;
MAC layer signal converting unit receives the low-rate signal that described demultiplexing unit is sent, and is physical layer signal with this conversion of signals, and sends to physical layer.
6, as ethernet physical layer Deplexing apparatus as described in the claim 5, it is characterized in that described low-speed clock signal is obtained by the low-speed clock that extracts the low speed signal of sending from physical layer, or is directly obtained by clock generation circuit.
7, the multiplexing and Deplexing apparatus of a kind of ethernet physical layer is characterized in that, comprising: physical layer signal and the mutual converting unit of MAC layer signal, signal multiplexing demultiplexing unit;
Physical layer signal and the mutual converting unit of MAC layer signal are used to receive physical layer low-speed signal more than a tunnel, and every road low speed signal is converted to MAC floor low speed signal and exports to described signal multiplexing demultiplexing unit; Also be used to receive the low-rate signal that described signal multiplexing demultiplexing unit is sent, be physical layer signal with this conversion of signals and send to physical layer;
The signal multiplexing demultiplexing unit, be used to receive the MAC layer low speed signal of described physical layer signal and the mutual converting unit output of MAC layer signal, store after every road low speed signal is provided with port label, the multi-path low speed signal of storage is multiplexing by the time-division multiplex mode, export one road MAC floor height speed signal; Also be used for receiving and store M AC floor height speed signal, be low-rate signal with the high speed signal demultiplexing of storing, and, determine descending transmit port according to the port label in the low speed signal;
Described this signal multiplexing demultiplexing unit comprises:
Port label is provided with subelement, is used to every road low speed signal that port label is set;
The port label storing sub-units is used to store the port label that every road low speed signal is provided with;
First storing sub-units at random, being used for the time slot is that the unit storage is provided with the low speed signal of port label, and reads one road MAC floor height speed signal under the driving by high-speed clock signal;
The port label judgment sub-unit according to the port label in the low speed signal, and is determined the downstream signal port by the information of searching in the described port label storing sub-units;
Second storing sub-units at random is used for the storing high-speed signal, reads two-way low speed signal at least by the driving of low-speed clock signal, sends to the downstream signal port that described port label judgment sub-unit is determined.
8, a kind of ethernet physical layer multiplexing method is characterized in that, comprising:
A, at least two low-rate physical layer signals of general are converted to corresponding low rate MAC layer signal;
B, described low rate MAC layer signal is provided with port label, and stores this port label;
C, each road low rate MAC layer signal that will have a port label are multiplexed with one tunnel two-forty MAC layer signal with time division way, are specially: be the low rate MAC layer signal that the unit storage is provided with port label with the time slot; Read one tunnel two-forty MAC layer signal with high-speed clock signal.
9, a kind of ethernet physical layer Deplexing method is characterized in that, comprising:
Receive and store one road MAC floor height speed signal;
The MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
With the port label that low-speed clock signal is read MAC layer low speed signal, search described port label corresponding port information according to each port label and determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port.
10, a kind of ethernet physical layer multiplexing and demultiplexing method is characterized in that, comprising:
At up direction,
At least two low-rate physical layer signals are converted to corresponding low rate MAC layer signal;
Described low rate MAC signal is provided with port label, and stores this port label;
The multi-path low speed rate MAC layer signal that will have port label is multiplexed with one tunnel two-forty MAC layer signal with time division way, is specially: be the low rate MAC layer signal that the unit storage is provided with port label with the time slot; Read one tunnel two-forty MAC layer signal with high-speed clock signal;
At down direction,
Receive and store one road MAC floor height speed signal;
The MAC floor height speed signal demultiplexing of storage is at least two MAC layer low speed signals;
With the port label that low-speed clock signal is read MAC layer low speed signal, search described port label corresponding port information according to each port label and determine corresponding downlink port, and then MAC layer low speed signal exported from corresponding downlink port.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510066285XA CN100496001C (en) | 2005-04-26 | 2005-04-26 | Device and method for duplexing and deduplexing physical layer of Ethernet |
| PCT/CN2005/001985 WO2006114032A1 (en) | 2005-04-26 | 2005-11-24 | An appratus for multiplexing, demultiplxing and series multiplexing in the physical layer of the ethernet and the method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510066285XA CN100496001C (en) | 2005-04-26 | 2005-04-26 | Device and method for duplexing and deduplexing physical layer of Ethernet |
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| Publication Number | Publication Date |
|---|---|
| CN1855858A CN1855858A (en) | 2006-11-01 |
| CN100496001C true CN100496001C (en) | 2009-06-03 |
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| CN101437035A (en) * | 2008-12-18 | 2009-05-20 | 杭州华三通信技术有限公司 | Data communication method and Ethernet equipment |
| CN103533090A (en) * | 2013-10-23 | 2014-01-22 | 中国科学院声学研究所 | Mapping method and device for simulating single physical network port into multiple logical network ports |
| CN103957476B (en) * | 2014-04-29 | 2015-07-15 | 中国人民解放军国防科学技术大学 | High-speed message obtaining method and system based on PON delay distance |
| CN106010251A (en) * | 2016-05-30 | 2016-10-12 | 广州晶品智能压塑科技股份有限公司 | High-binding force and high-hardness cap maker die coating layer |
| CN111951744B (en) * | 2020-06-30 | 2021-11-30 | 上海美仁半导体有限公司 | Interface switching circuit, chip and household appliance |
| CN114500393B (en) * | 2021-12-31 | 2024-03-15 | 伟乐视讯科技股份有限公司 | Communication method and communication equipment for MAC (media access control) to multiple PHY (physical layer) modules |
| CN114499762A (en) * | 2022-02-11 | 2022-05-13 | 深圳震有科技股份有限公司 | Communication system, multi-path forwarding method under 5G network and communication equipment |
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