CN114598569B - Network architecture - Google Patents
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- CN114598569B CN114598569B CN202210177549.2A CN202210177549A CN114598569B CN 114598569 B CN114598569 B CN 114598569B CN 202210177549 A CN202210177549 A CN 202210177549A CN 114598569 B CN114598569 B CN 114598569B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L2012/421—Interconnected ring systems
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Abstract
The embodiment of the disclosure discloses a network architecture. The network architecture comprises: the system comprises at least two transmission nodes, wherein the transmission nodes are connected through a first connection mode and a second connection mode, and the first connection mode is a mode of connecting the at least two transmission nodes in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; and the control node is connected with the at least two transmission nodes in series through the signal line. The signal lines used in the embodiment of the disclosure are less, the cost is low, and the information transmission of each transmission node can be efficient and stable through the combined use of the first connection mode and the second connection mode.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a network architecture.
Background
In the related art, a basic bearing network of each service system of the rail transit adopts a ring networking mode. In the case of failure of two or more transmission nodes, in order to reduce the possibility that the transmission of information of the failed transmission node and the transmission node between the failed transmission nodes is affected, the reliability of each service system of the rail transit is improved in a form of full network networking or biplane networking in a part of areas. In the whole network networking and the biplane networking, a plurality of communication links are arranged, the signal lines are more, the arrangement is complex, and the time delay of information transmission is high, the transmission efficiency is low and the cost is high.
Disclosure of Invention
In view of this, an embodiment of the present disclosure discloses a network architecture, including:
the system comprises at least two transmission nodes, wherein the transmission nodes are connected through a first connection mode and a second connection mode, and the first connection mode is a mode of connecting the at least two transmission nodes in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence;
and the control node is connected with the at least two transmission nodes in series through the signal line.
In one embodiment, at least one group of signal lines is provided between two adjacent transmission nodes connected in series; at least one signal line of a group of signal lines is used for enabling one transmission node to receive information; at least one signal line of a set of signal lines is used to cause the one transmission node to transmit information.
In one embodiment, the second connection mode includes: and connecting the transmission nodes on even number bits arranged according to the preset arrangement sequence in series through signal lines.
In one embodiment, the second connection mode includes: and connecting the transmission nodes on the odd digits arranged according to the preset arrangement sequence in series through signal lines.
In one embodiment, the second connection mode includes: the transmission nodes arranged according to the preset arrangement sequence and positioned on even number bits are sequentially connected in series through signal lines; and connecting the transmission nodes on the odd-numbered bits arranged according to the predetermined arrangement order in series through signal lines.
In one embodiment, the transmission nodes which are serially connected and located on even number bits and are in the first predetermined number are serially connected with the transmission nodes which are serially connected and located on odd number bits and are in the second predetermined number through signal lines.
In one embodiment, the transmission node comprises a relay transmission node; the relay transmission node is used for connecting any transmission node.
In one embodiment, the transmission node further comprises:
the address analysis module is used for configuring a transmission channel between the isolated transmission node and the relay transmission node; wherein the isolated transmission node comprises: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode.
In one embodiment, the address resolution module is configured to: and if the service type processed by the isolated transmission node is a preset service type, configuring a transmission channel between the isolated transmission node and the relay transmission node.
In one embodiment, the network architecture further comprises:
the automatic switching optical network module is used for switching the transmission channel between the isolated transmission node and the control node; wherein the isolated transmission points include: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode; the transmission channel after switching is a channel for the isolated transmission node to transmit information with the control node through the relay transmission node.
In this embodiment of the present disclosure, the transmission nodes are connected by a first connection manner and a second connection manner, where the first connection manner is a manner of connecting the at least two transmission nodes in series through signal lines sequentially according to a predetermined arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; and the control node is connected with the at least two transmission nodes in series through the signal line. Here, when the transmission node cannot communicate with the control node through the transmission channel corresponding to the first connection mode, the transmission node can communicate with the control node through the transmission channel corresponding to the second connection mode. When the transmission node fails, the transmission channels corresponding to the first connection mode and the second connection mode are mutually complemented. Through the transmission channel, normal information transmission can still be carried out between the transmission node and the control node.
Compared with the related art, a plurality of communication links are arranged for information transmission, the signal lines used in the embodiment of the disclosure are fewer, the cost is low, and the information transmission of each transmission node can be efficient and stable through the combined use of the first connection mode and the second connection mode.
Drawings
FIG. 1 is a schematic diagram of a network architecture according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a network architecture according to an example embodiment;
FIG. 3 is a schematic diagram of a network architecture according to an exemplary embodiment;
FIG. 4 is a schematic diagram of a network architecture according to an exemplary embodiment;
FIG. 5 is a schematic diagram of a network architecture according to an exemplary embodiment;
FIG. 6 is a schematic diagram of a network architecture shown in accordance with an exemplary embodiment;
FIG. 7 is a schematic diagram of a network architecture according to an example embodiment;
fig. 8 is a schematic diagram of a network architecture according to an exemplary embodiment.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, and the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.
In the following description, the terms "first", "second", "third" and the like are merely used to distinguish similar objects and do not represent a particular ordering of the objects, it being understood that the "first", "second", "third" may be interchanged with a particular order or sequence, as permitted, to enable embodiments of the invention described herein to be practiced otherwise than as illustrated or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
The embodiment of the disclosure provides a network architecture. The network architecture comprises:
the system comprises at least two transmission nodes, wherein the transmission nodes are connected through a first connection mode and a second connection mode, and the first connection mode is a mode of connecting the at least two transmission nodes in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence;
And the control node is connected with the at least two transmission nodes in series through the signal line.
Illustratively, as shown in fig. 1, the network architecture includes: the four transmission nodes are arranged according to a preset arrangement sequence, and the four transmission nodes are sequentially: transmission node 1, transmission node 2, transmission node 3 and transmission node 4; the transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode is a mode that a transmission node 1, a transmission node 2, a transmission node 3 and a transmission node 4 are sequentially connected in series through signal lines; the second connection mode is a mode that non-adjacent transmission nodes 1 and 3 and non-adjacent transmission nodes 2 and 4 are connected in series through signal lines in sequence; and the control node is connected in series with the transmission node 1, the transmission node 2, the transmission node 3 and the transmission node 4 through signal lines. It should be noted that, the serial connection sequence of the control node and the transmission node through the signal line includes: a first series sequence corresponding to the first connection mode and a second series sequence corresponding to the second connection mode.
In one embodiment, the network architecture is applied in a railway traffic system; wherein the transmission node in the network architecture may be associated with a geographic location (a station or a railway communication transfer station). Or, the network architecture can also be applied to the aspects of an internet of things system, a subway running system and the like. Here, the application scenario of the network architecture is not limited.
In one embodiment, the network architecture comprises: the transmission nodes are connected through a first connection mode and a second connection mode; the number of transmission nodes is determined based on a deployment scope of the network architecture.
In one embodiment, if the deployment range of the network architecture is greater than a first range value, the number of transmission nodes is greater than a predetermined value; or if the deployment range of the network architecture is smaller than the second range value, the number of the transmission nodes is smaller than a preset value.
In one embodiment, the network architecture comprises: the transmission nodes are connected through a first connection mode and a second connection mode; the number of transmission nodes is determined based on a transmission quality of the network architecture.
In one embodiment, if the transmission quality is less than a first value, the number of transmission nodes is less than a predetermined value; or if the transmission quality is greater than the second value, the number of the transmission nodes is greater than a predetermined value.
In one embodiment, the network architecture employs a dual-transceiver hot standby approach. That is, the network architecture sends information to the transmission node in synchronization with the control node by setting the spare data node, and receives the information sent by the transmission node through the control node. When the control node fails, the standby data node replaces the control node and communicates with the transmission node.
In one embodiment, the network architecture takes a single-shot, single-receipt, cold standby approach. That is, the network architecture restores important data resources through the spare data nodes in the case that the control node has failed, thereby replacing the control node and communicating with the transmission node.
In one embodiment, the network architecture is applied in a Time-division Duplex (TDD) system. The TDD system receives and transmits information in different time slots of the same frequency channel. At this time, in order to save the cost, a signal line is arranged between two adjacent transmission nodes connected in series by a first connection mode or a second connection mode; the signal lines are used to enable the transmitting nodes to receive or transmit information at different times.
In one embodiment, the network architecture is applied in a Frequency Division Duplex (FDD) system. The FDD system receives and transmits information on two separated symmetrical frequency channels respectively. At this time, at least one group of signal lines are arranged between two adjacent transmission nodes connected in series through a first connection mode or a second connection mode; at least one signal line of a group of signal lines is used for enabling one transmission node to receive information; at least one signal line of a set of signal lines is used to cause the one transmission node to transmit information.
In one embodiment, the signal line may be an optical fiber or a cable; the optical fiber may be a single core optical fiber or a dual core optical fiber.
In one embodiment, the transmission node has a first port and a second port; wherein the first port has two first sub-ports; the second port has two second sub-ports.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode is a mode of connecting the at least two transmission nodes in series through a first group of signal lines in sequence according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through a second group of signal lines in sequence; the transmission node is connected with a first group of signal lines through a first port; the transmission node is connected with the second group of signal lines through a second port.
Illustratively, as shown in fig. 2, the first set of signal lines includes signal line 1 and signal line 2; the second set of signal lines includes signal line 3 and signal line 4.
In one embodiment, the transmission node is connected to a first set of signal lines for receiving information and transmitting information through the two first sub-ports; the transmission node is connected with a second group of signal lines for receiving information and transmitting information through two second sub-ports.
Illustratively, as shown in fig. 2, the transmission node 1 has a first port and a second port; wherein the first port has two first sub-ports; the second port has two second sub-ports; the transmission node 1 is connected with a signal line 1 for receiving information through one first sub-port; the transmission node 1 is connected with a signal line 2 for transmitting information through the other first sub-port; the transmission node 1 is connected with a signal line 3 for receiving information through one second sub-port; the transmission node 1 is connected to a signal line 4 for transmitting information via another of the second sub-ports.
It may be appreciated that in the embodiment of the present disclosure, the transmission nodes are connected by a first connection manner and a second connection manner, and a transmission channel formed according to the first connection manner and the second connection manner coexist and is physically isolated from the second port by the first port. That is, two different connection modes are isolated using the first port and the second port, respectively.
In one embodiment, the network architecture comprises: the transmission nodes are connected through a first connection mode and a second connection mode; the control node comprises a first port and a second port; a first group of signal lines connected with the at least two transmission nodes in series through a first port; and the second port is connected with a second group of signal lines which are connected with the two transmission nodes in series.
Illustratively, as shown in FIG. 3, a first port of the control node is connected to a first set of signal lines that connect at least two transmission nodes in series; wherein the first group of signal lines comprises a signal line 1 and a signal line 2; the second port of the control node is connected with a second group of signal lines connected with at least two transmission nodes in series; wherein the second set of signal lines includes signal line 3 and signal line 4.
In one embodiment, the transmission nodes are serially connected in a predetermined arrangement sequence through a first set of signal lines; the control node in the network architecture is respectively connected with the transmission node positioned at the first position of the preset arrangement sequence and the transmission node positioned at the last position of the preset arrangement sequence through the first group of signal lines.
Illustratively, as shown in fig. 3, the transmission node 1, the transmission node 2, the transmission node 3 and the transmission node 4 are sequentially connected in series through a first group of signal lines; the control node is respectively connected with the transmission node 1 and the transmission node 4 through the first group of signal lines so as to form an annular transmission channel with the transmission node 1, the transmission node 2, the transmission node 3 and the transmission node 4; the first group of signal lines comprises a signal line 1 and a signal line 2.
In one embodiment, the control node is connected with at least two transmission nodes connected according to a first connection mode through a first port, so as to form a first annular transmission channel; the control node is connected with at least two transmission nodes connected according to a second connection mode through a second port, so that a second annular transmission channel is formed.
Therefore, when the transmission nodes in the transmission nodes arranged according to the preset arrangement sequence are in failure, the normal transmission nodes among the failed transmission nodes cannot transmit information through the first annular transmission channel, but can transmit the normal information through the second annular transmission channel, so that the information transmission efficiency between the transmission nodes and the control node is ensured.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode is a mode of connecting the at least two transmission nodes arranged according to a preset arrangement sequence in series through a first group of signal lines; the predetermined arrangement sequence is determined according to the service bearing capacity of the transmission node.
In one embodiment, the transmission nodes having traffic loads greater than a first value, the order bits in the predetermined permutation order being greater than a first predetermined value; or, the transmission nodes with the traffic carrying capacity larger than the first value are arranged in the order of less than the second preset value.
Illustratively, if the traffic load of the transmission node a is greater than the first value, the predetermined permutation order includes an order number of 1 to 10, and the order bit of the transmission node is greater than the first predetermined value. For example, the first predetermined value may be 8, and the transmission node is located in the 9 th order. Alternatively, the order of the transmission nodes is less than a second predetermined value. For example, the second predetermined value may be 3, and the transmission node is located in the 2 nd order. Here, the number of transmission nodes between the transmission node with the large service bearing capacity and the control node is less than a preset value, and under the condition that the transmission node between the transmission node with the large service bearing capacity and the control node does not fail, the possibility that the transmission node with the large service bearing capacity is interfered by other transmission nodes is small. Therefore, the transmission node with large service bearing capacity can be ensured to normally operate under most conditions, and the performance of the network architecture in service implementation is improved.
In one embodiment, the transmission nodes having traffic load less than the second value are located in a predetermined interval in a predetermined permutation order.
Illustratively, the predetermined arrangement order includes an order number of 1 to 10, and the predetermined interval is an interval between 4 and 7. Transmission nodes with service bearing capacity smaller than the second value, wherein the sequence in the preset arrangement sequence is positioned in the interval; the order bit in which the transmission node is located may be bit 4 or bit 7, etc.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode is a mode of connecting the at least two transmission nodes arranged according to a preset arrangement sequence in series through a first group of signal lines; the predetermined arrangement sequence is determined according to the processing priority of the transmission node; the processing priority is the priority of the service processed by the transmission node.
In one embodiment, transmission nodes having a priority greater than a first value are processed, and the order bits in the predetermined permutation order are greater than a first predetermined value; or, processing the transmission nodes with priority higher than the first value, the order in the predetermined arrangement order being lower than the second predetermined value.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode is a mode of connecting the at least two transmission nodes in series through a first group of signal lines in sequence according to a preset arrangement sequence; the predetermined arrangement order is determined according to the communication quality of the transmission nodes. In one embodiment, the communication quality of the transmission node may be determined by the number and size of transmission channels to which the transmission node is connected; the communication quality value of the transmission node is positively correlated with the number of transmission channels connected with the transmission node, and the transmission node can complete information transmission by switching the transmission channels connected with the transmission node. For example, if the transmission node is connected to a first transmission channel and a second transmission channel, when the first transmission channel fails, the transmission node may switch to the second transmission channel to complete information transmission.
In one embodiment, the communication quality of the transmission node may be determined by the storage capacity of the memory of the transmission node and the processing efficiency of the processor; wherein the communication quality is positively correlated with the storage capacity and processing efficiency of the transmission node.
In one embodiment, the transmission node having a communication quality value greater than a first value, the order bits in the predetermined permutation order being greater than a first predetermined value; or, the transmission nodes having a communication quality value greater than the first value, the order in the predetermined arrangement order being less than the second predetermined value.
In one embodiment, the transmission nodes having a communication quality value less than the second value are located within a predetermined interval in a predetermined permutation order.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; wherein a predetermined number of transmission nodes are spaced between the two transmission nodes connected in series in turn.
It should be understood that, the predetermined arrangement sequence referred to herein may be any one of the predetermined arrangement sequences referred to above, and the non-adjacent transmission nodes in the at least two transmission nodes arranged according to the predetermined arrangement sequence refer to transmission nodes whose order bits are non-adjacent in any one of the predetermined arrangement sequences referred to above. Specifically, the predetermined arrangement order here is the same as the predetermined arrangement order in which the transmission nodes are connected according to the first connection manner; the first connection mode is a mode of connecting the at least two transmission nodes which are arranged according to a preset arrangement sequence in series through a first group of signal lines.
In one embodiment, the predetermined number may be a random number; the random number is smaller than a maximum sequence value of the predetermined arrangement sequence. Illustratively, the predetermined permutation order is 1 to 10, and the predetermined number may be any random number less than the maximum order value 10, for example, the random number is 1, 2, 3, or 4, etc.
Illustratively, the transmission node 1, the transmission node 2, the transmission node 3, the transmission node 4, the transmission node 5, and the transmission node 6 are sequentially arranged, wherein the transmission node 1, the transmission node 4, and the transmission node 7, which are not adjacent in the arrangement order, are sequentially connected; two transmission nodes are arranged between the transmission nodes 1 and the transmission nodes 4 which are connected in sequence; two transmission nodes are arranged between the transmission node 4 and the transmission node 7 which are connected in sequence.
In one embodiment, the transmission nodes are connected through a first connection mode and a second connection mode; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; wherein a predetermined number of transmission nodes are spaced between the two transmission nodes connected in series in turn. Illustratively, the predetermined number is determined based on a maximum order value of the predetermined ranking order; the predetermined number may be a quotient of the maximum sequential value divided by a preset value; the preset value is determined based on the computing resources allocated by the control node on the traffic handling of the network architecture. For example, if the computing resource allocated by the control node to the service processing is greater than a first value, the preset value is smaller than a first predetermined value; and if the computing resource allocated by the control node on the service processing is smaller than a second value, the preset value is smaller than a second preset value.
In this way, the more the control nodes allocate computing resources on the information transmission of the network architecture, the more the control nodes are connected in series with the transmission nodes connected in the second connection mode, so that the number of the transmission nodes can be adapted to the operation capacity of the control nodes.
In one embodiment, the second connection mode includes: and connecting the transmission nodes on even number bits arranged according to the preset arrangement sequence in series through signal lines.
In one embodiment, a predetermined number of the transmission nodes located at even-numbered bits arranged according to the predetermined arrangement order are sequentially connected in series through signal lines. Here, the number of transmission nodes located at even bits is not limited, and the transmission nodes may include all transmission nodes located at even bits, or may include transmission nodes partially located at even bits.
Illustratively, the transmission nodes include transmission nodes 1 to 10 arranged according to a predetermined arrangement order, wherein transmission node 2, transmission node 4 and transmission node 6 located at even number bits are connected in series in order through signal lines; alternatively, the transmission nodes 4, 6 and 8 located at even numbers are connected in series via signal lines in this order.
In one embodiment, the transmission nodes on even-numbered bits arranged according to the predetermined arrangement order are sequentially connected in series through a set of signal lines; the control node in the network architecture is respectively connected with the transmission node positioned at the first even number bit of the preset arrangement sequence and the transmission node positioned at the last even number bit of the preset arrangement sequence through the group of signal lines.
Illustratively, as shown in fig. 4, the control node is connected to the transmission node 2 and the transmission node 8, respectively, via signal lines.
In one embodiment, the transmission nodes on even number are transmission nodes with service bearing capacity greater than a preset value.
In one embodiment, the second connection mode includes: and connecting the transmission nodes on the odd digits arranged according to the preset arrangement sequence in series through signal lines. Here, the number of transmission nodes located on the odd-numbered bits is not limited, and the transmission nodes may include all transmission nodes located on the odd-numbered bits, or may include transmission nodes partially located on the odd-numbered bits.
Illustratively, as shown in fig. 5, the transmission nodes include transmission nodes 1 to 8 arranged according to a predetermined arrangement order, wherein transmission nodes 1, 3, 5, and 7 located at odd numbers are connected in series by signal lines in order.
In one embodiment, a predetermined number of the transmission nodes in odd-numbered bits arranged according to the predetermined arrangement order are sequentially connected in series through signal lines.
In one embodiment, the transmission nodes on even-numbered bits arranged according to the predetermined arrangement order are sequentially connected in series through a set of signal lines; the control node in the network architecture is respectively connected with the transmission node positioned at the first odd bit of the preset arrangement sequence and the transmission node positioned at the last odd bit of the preset arrangement sequence through the group of signal lines.
In one embodiment, the second connection mode includes: the transmission nodes arranged according to the preset arrangement sequence and positioned on even number bits are sequentially connected in series through signal lines; and connecting the transmission nodes on the odd-numbered bits arranged according to the predetermined arrangement order in series through signal lines.
In one embodiment, the control node in the network architecture includes a second port, where the second port includes two second sub-ports, and one of the second sub-ports is connected to the transmission node located in the first odd bit of the predetermined arrangement sequence through a signal line; the other second sub-port is connected with the transmission node positioned at the first odd bit of the preset arrangement sequence through a signal line. Or one of the second sub-ports is connected with a transmission node positioned at the last odd bit of the preset arrangement sequence through a signal line; the other second sub-port is connected with the transmission node positioned at the last even number bit of the preset arrangement sequence through a signal line. Here, there is no limitation on two transmission nodes to which the control node is connected through a signal line.
In one embodiment, the control node in the network architecture includes a second port, the second port including two sub-ports; one of the second sub-ports is connected in series with the transmission nodes positioned on the odd digits of the preset arrangement sequence through a signal line to form a first series connection group; the other second sub-port is connected in series with the transmission node positioned on the preset arrangement sequential even bit through a signal wire to form a second series connection group; the first series connection group is connected in series with the second series connection group to form an annular transmission channel.
Illustratively, as shown in fig. 6, the transmission node 1, the transmission node 3, the transmission node 5, the transmission node 7, and the transmission node 9 located on the odd number bit are connected in order; the transmission node 2, the transmission node 4, the transmission node 6, the transmission node 8 and the transmission node 10 which are positioned on even numbers are connected in sequence; one of the second ports of the control node is connected with the transmission node 1 through a signal line; another second sub-port of the second ports of the control node is connected to the transmission node 2 via a signal line.
In one embodiment, the transmission nodes located on even bits and in the first predetermined number are connected in series with the transmission nodes located on odd bits and in the second predetermined number.
Illustratively, as shown in fig. 6, the transmission node 9 and the transmission node 10 on even bits are connected in series through a signal line.
In one embodiment, the transmission nodes are disposed in a station, and the arrangement sequence of the station is the arrangement sequence of the transmission nodes. The transmission nodes are connected through a first connection mode and a second connection mode; the first connection mode may also be referred to as a neighbor station jumper connection mode; the second connection mode may also be referred to as a station-jumper mode. The control node is connected with the transmission node in the first connection mode to form a first two-fiber self-healing ring; and the control node is connected with the transmission node in the second connection mode to form a second fiber self-healing ring. Each two-fiber self-healing ring comprises two optical fibers, a control node and a transmission node; the control node is connected with the transmission node through an optical fiber.
Illustratively, as shown in fig. 7, the transmission nodes indicated by the stations 1 to 10 are arranged in a predetermined arrangement order, thereby forming a first two-fiber self-healing ring; the transmission nodes indicated from the station 1 to the station 10 are connected in a station-separating and jumper-connecting mode, so that a second fiber self-healing ring is formed.
Here, assuming that the transmission nodes indicated by the stations 1 and 3 in the first two-fiber self-healing ring fail, the transmission node indicated by the station 2 between the stations 1 and 3 cannot transmit information through the first two-fiber self-healing ring and the control node. In the embodiment of the disclosure, a second fiber self-healing ring is also provided. In the second fiber self-healing ring, even if the transmission nodes indicated by the station 1 and the station 3 fail, the transmission node indicated by the station 2 between the station 1 and the station 3 can still transmit information with the control node through the second fiber self-healing ring. Therefore, under the condition that only two optical fibers are added, information transmission between each transmission node and the control node is safer and more stable.
In one embodiment, each service system of the network architecture application may set two ports respectively, and when configuring the service, configure the service of one of the ports in the first two-fiber self-healing ring respectively; traffic for the other port is configured in the second fiber self-healing ring.
In one embodiment, the network architecture comprises: at least two transmission nodes; the transmission nodes are connected through a first connection mode and a second connection mode, wherein the first connection mode is a mode of connecting the at least two transmission nodes in series through signal lines in sequence according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; an escape channel is configured between two adjacent transmission nodes in the at least two transmission nodes arranged according to a preset arrangement sequence; the escape passage is used for: the transmission node provides a transmission channel under the condition that information transmission with the control node cannot be carried out through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode; and the control node is connected with the at least two transmission nodes in series through the signal line. It should be noted that, the escape passage is a wired communication link and/or a wireless communication link.
In one embodiment, the bandwidth of the escape channel is determined according to the information quantity of the information transmission of the transmission node and the control node in the first state; the first state is a state in which the transmission node performs information transmission with the control node through the first set of signal lines and the second set of signal lines.
In one embodiment, the information amount is greater than a predetermined value, and the bandwidth of the escape route is less than a first value; or the information quantity is smaller than a preset value, and the bandwidth of the escape passage is smaller than a second value. Illustratively, if the amount of information is greater than a predetermined value, the bandwidth is less than a first value; the amount of information transmitted within the predetermined time of the bandwidth indication is less than one half of the predetermined value. Thus, the bandwidth of the escape channel is configured according to the information transmission requirement, and the configuration cost is saved when the escape channel does not operate; when the escape channel operates, the escape channel can maintain information transmission between the transmission node and the control node and reduce communication resources distributed to the transmission node by the control node.
It will be appreciated that the bandwidth of the escape route may be configured according to the requirements of the user and is not limited to the above. In some embodiments, the information transmission amount of the bandwidth indication of the escape route may be greater than the information transmission amount of the transmission node and the control node in the first state; the first state is a state in which the transmission node performs information transmission with the control node through the first set of signal lines and the second set of signal lines.
In this embodiment of the present disclosure, the transmission nodes are connected by a first connection manner and a second connection manner, where the first connection manner is a manner of connecting the at least two transmission nodes in series through signal lines sequentially according to a predetermined arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence; and the control node is connected with the at least two transmission nodes in series through the signal line. Here, when the transmission node cannot communicate with the control node through the transmission channel corresponding to the first connection mode, the transmission node can communicate with the control node through the transmission channel corresponding to the second connection mode. When the transmission node fails, the transmission channels corresponding to the first connection mode and the second connection mode are mutually complemented. Through the transmission channel, normal information transmission can still be carried out between the transmission node and the control node.
Compared with the related art, a plurality of communication links are arranged for information transmission, the signal lines used in the embodiment of the disclosure are fewer, the cost is low, and the information transmission of each transmission node can be efficient and stable through the combined use of the first connection mode and the second connection mode.
In one embodiment, the transmission node comprises a relay transmission node; the relay transmission node is used for connecting any transmission node. It should be noted that, the relay transmission node being used to connect any one of the transmission nodes means that the relay transmission node is separately connected with all transmission nodes except for itself in the network architecture; and a transmission channel is arranged between the relay transmission node and all transmission nodes except the relay transmission node in the network architecture. The transmission channel provides a channel for information transmission by the transmission node only when selected or enabled by the transmission node. The transmission channel exists as a spare transmission channel only under the condition of not being selected and not being enabled, and does not occupy the information transmission resources of each transmission node.
In one embodiment, each transmission node further comprises a third port, and the third port of the transmission node is connected with the relay transmission node through a signal line.
Illustratively, as shown in fig. 8, the transmission nodes include transmission nodes 1 to 10 arranged in a predetermined arrangement order, wherein the transmission node 2 is a relay transmission node, and other transmission nodes except the relay transmission node are all connected to the relay transmission node through signal lines.
In one embodiment, the transmission node comprises at least two relay transmission nodes; wherein the at least two relay transmission nodes are used for connecting any one of the transmission nodes.
In one embodiment, the communication quality of the relay transmission node is greater than a preset value; the communication quality of the relay transmission node can be determined by the storage capacity of a memory of the transmission node and the processing efficiency of a processor; the communication quality is positively correlated with the storage capacity and processing efficiency of the transmission node.
In one embodiment, a control node in the network architecture is directly connected with the relay transmission node through a signal line; or a predetermined number of transmission nodes are arranged between the control node and the relay transmission node. Illustratively, in fig. 8, the relay transmission node may be the transmission node 3 (the transmission node 3 is not shown in the figure as a relay transmission node). Here, the position of the relay transmission node is not limited.
In one embodiment, the transmission node further comprises:
the address analysis module is used for configuring a transmission channel between the isolated transmission node and the relay transmission node; wherein the isolated transmission node comprises: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode.
In one embodiment, the address resolution module is configured to: and if the service type processed by the isolated transmission node is a preset service type, configuring a transmission channel between the isolated transmission node and the relay transmission node.
The predetermined service type is determined based on a mapping relation between the service type and a processing priority, and the service type with the processing priority higher than a first predetermined value is the predetermined service type. For example, in an application scenario of railway traffic, the processing priority of railway collapse is highest, and at this time, if the isolated transmission node cannot perform information processing with the control node according to the first group of signal lines and the second group of signal lines; the isolated transmission node configures a transmission channel between the isolated transmission node and the relay transmission node through an address resolution module.
In one embodiment, a relay transmission node is connected to a control node, and an isolated transmission node obtains an IP address of the relay transmission node through a signal line connected between the relay transmission node and a third port of the isolated transmission node, and configures the obtained IP address as a target address of the isolated transmission node. In this way, information transmission can be performed by the relay transmission node and the control node.
Therefore, based on the business needing urgent processing, the isolated transmission node configures a new transmission channel, and completes information transmission with the control node through the transmission channel, thereby ensuring timely processing of the business. For the business which does not need urgent processing, the isolated transmission node can choose not to configure a new transmission channel, so that the resources consumed in analyzing and configuring are saved.
In one embodiment, the network architecture further comprises:
the automatic switching optical network module is used for switching the transmission channel between the isolated transmission node and the control node; wherein the isolated transmission points include: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode; the transmission channel after switching is a channel for the isolated transmission node to transmit information with the control node through the relay transmission node.
In one embodiment, the automatic switching optical network module includes: a transmission plane and a control plane; the control plane switches the transmission channels between the isolated transmission node and the control node by using interfaces, protocols and signaling systems through distributed intelligence arranged in the network architecture, so that dynamic routing is realized.
Therefore, when the isolated transmission node cannot transmit information with the control node due to the faults of other transmission nodes, the transmission channel is re-planned for the isolated node through the address analysis module or the automatic exchange optical network module, so that the communication between the isolated transmission node and the control node is ensured to be normal.
For example, as shown in fig. 8, if the transmission node 1 and the transmission node 5 fail, the transmission node 3 between the transmission node 1 and the transmission node 5 may reprogram a transmission channel for the isolated transmission node through the address resolution module and the automatic switching optical network module. In this way, it is ensured that the information transmission of the transmission node 3 is normal.
It should be noted that the re-planned transmission channel may be regarded as an escape channel for the transmission node, which is opened as an alternative only when emergency traffic handling is required. The bandwidth and communication quality of the escape passage can be inferior to those of the normal operation of the network architecture, thus ensuring that the escape passage which is only opened in emergency is configured with less cost. The normal operation refers to an operation state that the transmission nodes are connected through a first connection mode and a second connection mode and perform information transmission. Therefore, the cost for setting the escape channel and the information resources for supporting the escape channel to operate by each transmission node are saved, and the normal operation of each transmission node under most conditions can be realized.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (10)
1. A network architecture, the network architecture comprising:
the system comprises at least four transmission nodes, wherein the transmission nodes are connected through a first connection mode and a second connection mode, and the first connection mode is a mode of connecting the at least four transmission nodes in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode of connecting non-adjacent transmission nodes in the at least four transmission nodes arranged according to the preset arrangement sequence in series through signal lines in sequence;
and the control node is connected with the at least four transmission nodes in series through the signal lines.
2. The network architecture of claim 1, wherein at least one set of signal lines is provided between two adjacent transmission nodes connected in series; wherein at least one signal line of a set of signal lines is for enabling one of the transmission nodes to receive information; at least one signal line of a set of signal lines is used for causing one of the transmission nodes to transmit information.
3. The network architecture of claim 1, wherein the second connection means comprises: and connecting the transmission nodes on even number bits arranged according to the preset arrangement sequence in series through signal lines.
4. The network architecture of claim 1, wherein the second connection means comprises: and connecting the transmission nodes on the odd digits arranged according to the preset arrangement sequence in series through signal lines.
5. The network architecture of claim 1, wherein the second connection means comprises: the transmission nodes arranged according to the preset arrangement sequence and positioned on even number bits are sequentially connected in series through signal lines; and connecting the transmission nodes on the odd-numbered bits arranged according to the predetermined arrangement order in series through signal lines.
6. The network architecture of claim 5, wherein the transmission nodes in the first predetermined number and the transmission nodes in the second predetermined number and the transmission nodes in the odd number are connected in series via signal lines.
7. The network architecture of claim 1, wherein the transmission node comprises a relay transmission node; the relay transmission node is used for connecting any transmission node.
8. The network architecture of claim 7, wherein the transmission node further comprises:
the address analysis module is used for configuring a transmission channel between the isolated transmission node and the relay transmission node; wherein the isolated transmission node comprises: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode.
9. The network architecture of claim 8, wherein the address resolution module is configured to: and if the service type processed by the isolated transmission node is a preset service type, configuring a transmission channel between the isolated transmission node and the relay transmission node.
10. The network architecture of claim 7, wherein the network architecture further comprises:
The automatic switching optical network module is used for switching the transmission channel between the isolated transmission node and the control node; wherein the orphan transmission node comprises: a transmission node which cannot transmit information with the control node through the first group of signal lines and the second group of signal lines; the first group of signal lines are signal lines which are connected with the transmission nodes in a first connection mode; the second group of signal lines are signal lines which are connected with the transmission nodes according to a second connection mode; the transmission channel after switching is a channel for the isolated transmission node to transmit information with the control node through the relay transmission node.
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