CN114598569A - Network architecture - Google Patents
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- CN114598569A CN114598569A CN202210177549.2A CN202210177549A CN114598569A CN 114598569 A CN114598569 A CN 114598569A CN 202210177549 A CN202210177549 A CN 202210177549A CN 114598569 A CN114598569 A CN 114598569A
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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
Abstract
The embodiment of the disclosure discloses a network architecture. The network architecture comprises: the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the transmission nodes are sequentially connected in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode that non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire. The embodiment of the disclosure uses few signal lines and is low in cost, and the information transmission of each transmission node can be efficient and stable by using the first connection mode and the second connection mode jointly.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a network architecture.
Background
In the related technology, the basic bearing network of each service system of the rail transit adopts a ring-shaped networking form. Under the condition that two or more transmission nodes have faults, in order to reduce the possibility that the information transmission of the fault transmission nodes and the transmission nodes among the fault transmission nodes is influenced, the reliability of each service system of the rail transit is improved in a partial area in a form of full-network networking or biplane networking. In the full-network networking and the biplane networking, a large number of communication links are arranged, the number of signal lines is large, 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, the disclosed embodiment discloses a network architecture, which includes:
the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the transmission nodes are sequentially connected in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire.
In one embodiment, at least one group of signal lines is arranged between two adjacent transmission nodes connected in series; at least one signal wire in a group of signal wires is used for enabling one transmission node to receive information; at least one signal line of a group of signal lines is used to cause the one transmission node to transmit information.
In one embodiment, the second connection mode includes: and sequentially connecting the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on the even number positions in series through signal wires.
In one embodiment, the second connection mode includes: and sequentially connecting the transmission nodes positioned on the odd bits and arranged according to the preset arrangement sequence in series through signal wires.
In one embodiment, the second connection mode includes: the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on even numbers are connected in series through signal wires in sequence; and the transmission nodes on the odd bits arranged according to the preset arrangement sequence are connected in series through signal wires in sequence.
In one embodiment, the transmission nodes which are positioned on even-numbered bits and in the first predetermined order after the series and the transmission nodes which are positioned on odd-numbered bits and in the second predetermined order after the series are connected in series through a signal line.
In one embodiment, the transmission node comprises a relay transmission node; wherein, 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 orphan transmission node comprises: a transmission node which can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by 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 a transmission channel between the isolated transmission node and the control node; wherein the isolated transmission points comprise: a transmission node which can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by the transmission nodes according to a second connection mode; and the switched transmission channel is a channel for the isolated transmission node to transmit information with the control node through the relay transmission node.
In the embodiment of the disclosure, the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the at least two transmission nodes are sequentially connected in series through signal lines according to a predetermined arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire. Here, when the transmission node cannot communicate with the control node through the transmission channel corresponding to the first connection method, the transmission node can communicate with the control node through the transmission channel corresponding to the second connection method. Therefore, when a transmission node fails, the transmission channels corresponding to the first connection mode and the second connection mode are complementary. Through the transmission channel, normal information transmission can still be carried out between the transmission node and the control node.
Compared with the prior art in which a large number of communication links are arranged for information transmission, the embodiment of the disclosure uses fewer signal lines and is low in cost, and the information transmission of each transmission node can be efficient and stable by using the first connection mode and the second connection mode in a combined manner.
Drawings
FIG. 1 is a schematic diagram of a network architecture according to an example 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 example embodiment;
FIG. 4 is a schematic diagram of a network architecture according to an example embodiment;
FIG. 5 is a schematic diagram of a network architecture according to an example embodiment;
FIG. 6 is a schematic diagram of a network architecture according to an example embodiment;
FIG. 7 is a schematic diagram of a network architecture according to an example embodiment;
fig. 8 is a network architecture diagram illustrating an example embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection 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 understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
In the description that follows, references to the terms "first \ second \ third" are intended merely to distinguish similar objects and do not denote a particular order, but rather are to be understood that the terms "first \ second \ third" may be interchanged under certain circumstances or sequences of events to enable embodiments of the invention described herein to be practiced in other than those 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 disclosed embodiments provide a network architecture. The network architecture comprises:
the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the transmission nodes are sequentially connected in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire.
Illustratively, as shown in fig. 1, the network architecture includes: the transmission nodes are arranged according to a preset arrangement sequence, and the sequence is as follows: a transmission node 1, a transmission node 2, a transmission node 3, and a 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 connected in series through signal lines in sequence; the second connection mode is a mode that the transmission nodes 1 and the transmission nodes 3 are not adjacent, and the transmission nodes 2 and the transmission nodes 4 are not adjacent and are connected in series through signal wires sequentially; and the control node is connected with the transmission node 1, the transmission node 2, the transmission node 3 and the transmission node 4 in series through signal lines. It should be noted that the series connection sequence of the control node and the transmission node through the signal line includes: a first series order corresponding to the first connection mode and a second series order 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 can be associated with a geographic position (a station or a railway communication transfer station). Or, the network architecture can also be applied to aspects such as an internet of things system and a subway operation system. Here, the application scenario of the network architecture is not limited.
In one embodiment, the network architecture comprises: the transmission nodes are connected in a first connection mode and a second connection mode; the number of transmission nodes is determined based on a deployment range 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 the 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 the predetermined value.
In one embodiment, the network architecture comprises: the transmission nodes are connected in 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 adopts a dual-transmission selective-reception hot standby mode. That is, the network architecture sends information to the transmission node synchronously with the control node by setting the standby data node, and receives the information sent by the transmission node through the control node. And 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 is a single-transmitting single-receiving cold standby mode. That is, the network architecture restores important data resources through a backup data node in the case where a control node has failed, thereby communicating with the transport node instead of the control 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 cost, a signal line is arranged between two adjacent transmission nodes which are connected in series through the first connection mode or the second connection mode; the signal line is used for receiving or sending information by the transmission node at different time.
In one embodiment, the network architecture is applied in a Frequency-division Duplex (FDD) system. The FDD system receives and transmits information on two separate symmetric frequency channels, respectively. At this time, at least one group of signal lines is arranged between two adjacent transmission nodes which are connected in series in a first connection mode or a second connection mode; at least one signal wire in a group of signal wires is used for enabling one transmission node to receive information; at least one signal line of a group 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 an electrical cable; the optical fiber may be a single core optical fiber or a dual core optical fiber.
In one embodiment, the transport node has a first port and a second port; wherein the first port has two first sub-ports; the second port has two second subports.
In one embodiment, the transmission nodes are connected by a first connection mode and a second connection mode; the first connection mode is a mode that the at least two transmission nodes are sequentially connected in series through a first group of signal lines according to a preset arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are sequentially connected in series through a second group of signal lines; 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 group of signal lines includes signal line 1 and signal line 2; the second group of signal lines includes signal lines 3 and signal lines 4.
In one embodiment, the transmission node is connected with a first group of signal lines for receiving and transmitting information through the two first sub-ports; the transmission node is connected with a second group of signal lines for receiving and sending information through two second sub-ports.
Exemplarily, 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 of the second sub-ports; the transmission node 1 is connected to a signal line 4 for transmitting information through the other of the second sub-ports.
It can be understood that, in the embodiments 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 coexists and is physically isolated from the second port by the first port. That is, the two different connection modes are separated by the first port and the second port respectively.
In one embodiment, the network architecture comprises: the transmission nodes are connected in a first connection mode and a second connection mode; a control node comprising a first port and a second port; connected to a first set of signal lines connecting the at least two transmission nodes in series through a first port; and a second group of signal lines connecting the two transmission nodes in series through the second port.
Illustratively, as shown in fig. 3, the first port of the control node is connected to a first set of signal lines connecting at least two transmission nodes in series; the first group of signal lines comprises a signal line 1 and a signal line 2; a second port of the control node is connected with a second group of signal lines which are connected with at least two transmission nodes in series; the second group of signal lines includes signal lines 3 and signal lines 4.
In one embodiment, the transmission nodes are connected in series sequentially through a first group of signal lines in a predetermined arrangement order; and the control node in the network architecture is respectively connected with the transmission node positioned at the head of the preset arrangement sequence and the transmission node positioned at the tail 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 that a ring-shaped transmission channel is formed by the control node and the transmission nodes 1, 2, 3 and 4; the first group of signal lines comprises signal lines 1 and signal lines 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 ring-shaped transmission channel; the control node is connected to at least two transmission nodes connected according to a second connection through a second port, thereby forming a second ring-shaped transmission channel.
In this way, when a transmission node of the transmission nodes arranged according to the predetermined arrangement sequence fails, a normal transmission node between the failed transmission nodes cannot transmit information through the first ring transmission channel, but can transmit normal information through the second ring transmission channel, thereby ensuring the information transmission efficiency between the transmission node and the control node.
In one embodiment, the transmission nodes are connected by a first connection mode and a second connection mode; the first connection mode is a mode that the at least two transmission nodes arranged according to a preset arrangement sequence are connected in series through a first group of signal wires in sequence; the predetermined arrangement sequence is determined according to the service carrying capacity of the transmission nodes.
In one embodiment, the transmission node whose traffic carrying capacity is greater than a first value has sequence bits in a predetermined arrangement order greater than a first predetermined value; or, the sequence bits in the predetermined arrangement sequence of the transmission nodes with the service carrying capacity larger than the first value are smaller than the second predetermined value.
Illustratively, if the traffic carrying capacity of the transmission node a is greater than a first value, and the predetermined permutation order includes an order number from 1 to 10, the order bits of the transmission node are greater than a first predetermined value. For example, the first predetermined value may be 8, and the transmitting node is located on the 9 th order. Or the sequence bits of the transmission node are smaller than a second preset value. For example, the second predetermined value may be 3, and the transmitting node is located on the 2 nd order. Here, the number of transmission nodes between the transmission node with large service carrying capacity and the control node is less than a preset value, and the transmission node with large service carrying capacity is less likely to be interfered by other transmission nodes under the condition that the transmission node between the transmission node with large service carrying capacity and the control node does not have a fault. 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 node whose traffic carrying capacity is smaller than the second value has sequential bits in the predetermined permutation order within a predetermined interval.
Illustratively, the predetermined arrangement order includes an order number of 1 to 10, and the predetermined interval is an interval between 4 and 7. The transmission nodes with the service bearing capacity smaller than the second value have sequence bits in a preset arrangement sequence in the interval; wherein, the sequence bit in which the transmission node is located may be the 4 th bit or the 7 th bit, and so on.
In one embodiment, the transmission nodes are connected by a first connection mode and a second connection mode; the first connection mode is a mode that the at least two transmission nodes arranged according to a preset arrangement sequence are connected in series through a first group of signal lines in sequence; the predetermined arrangement order is determined according to the processing priority of the transmission nodes; the processing priority is the priority of the service processed by the transmission node.
In one embodiment, the transmission nodes having a processing priority greater than a first value have sequential bits in a predetermined ordering greater than a first predetermined value; or, the transmission nodes with the processing priority greater than the first value have sequence bits smaller than a second preset value in a preset arrangement sequence.
In one embodiment, the transmission nodes are connected by a first connection mode and a second connection mode; the first connection mode is a mode that the at least two transmission nodes are sequentially connected in series through a first group of signal wires according to a preset arrangement sequence; the predetermined arrangement order is determined according to communication quality of the transmission nodes. In one embodiment, the communication quality of the transmission node may be determined by the size of the number 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 to the transmission node, and the transmission node can complete information transmission by switching the transmission channels connected to the transmission node. For example, if the transmission node is connected with 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 transmitting node may be determined by a storage capacity of a memory of the transmitting node and a processing efficiency of a 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 has sequential bits in a predetermined permutation order greater than a first predetermined value; alternatively, the transmission node having the communication quality value larger than the first value has sequential bits in the predetermined arrangement order smaller than the second predetermined value.
In one embodiment, the transmission node having a communication quality value smaller than the second value has sequential bits in a predetermined permutation order within a predetermined interval.
In one embodiment, the transmission nodes are connected by a first connection mode and a second connection mode; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are sequentially connected in series through signal lines; wherein a predetermined number of transmission nodes are spaced between the two transmission nodes connected in series in sequence.
It is to be understood that the predetermined arranging order referred to herein may be any one of the predetermined arranging orders referred to above, and the non-adjacent transmission nodes of the at least two transmission nodes arranged according to the predetermined arranging order refer to transmission nodes whose sequence positions are not adjacent in any one of the predetermined arranging orders 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 that the at least two transmission nodes arranged according to a preset arrangement sequence are connected in series sequentially through a first group of signal lines.
In one embodiment, the predetermined number may be a random number; the random number is less than a maximum order value of the predetermined order. Illustratively, the predetermined permutation order is 1 to 10, and the predetermined number may be any random number smaller than the maximum order value 10, for example, the random number is 1, 2, 3, or 4, and so on.
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 node 1 and the transmission node 4 which are connected in sequence at intervals; 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 by a first connection mode and a second connection mode; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are sequentially connected in series through signal lines; wherein a predetermined number of transmission nodes are spaced between the two transmission nodes connected in series in sequence. Illustratively, the predetermined number is determined according to a maximum rank value of the predetermined rank order; the predetermined number may be a quotient of the maximum ordinal value divided by a preset value; the preset value is determined based on computing resources allocated by the control node on the traffic processing of the network architecture. For example, if the computational resource allocated by the control node on the service processing is greater than a first value, the preset value is smaller than a first preset value; and if the computing resource distributed 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 computing resources the control node allocates to the transmission of information over the network architecture, the more transport nodes the control node has a series connection with a second connection, so that the number of transport nodes can be adapted to the operational capacity of the control node.
In one embodiment, the second connection mode includes: and sequentially connecting the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on the even number positions in series through signal wires.
In one embodiment, a predetermined number of the transfer nodes at even-numbered positions arranged according to the predetermined arrangement order are connected in series through a signal line in turn. Here, the number of the transfer nodes located at the even-numbered positions is not limited, and the transfer nodes may include all the transfer nodes located at the even-numbered positions or may include some of the transfer nodes located at the even-numbered positions.
Illustratively, the transmission nodes include transmission nodes 1 to 10 arranged according to a predetermined arrangement order, wherein the transmission nodes 2, 4 and 6 located at even-numbered positions are sequentially connected in series by signal lines; alternatively, the transfer node 4, the transfer node 6, and the transfer node 8 located at even-numbered positions are sequentially connected in series by a signal line.
In one embodiment, the transmission nodes located at even-numbered positions arranged according to the predetermined arrangement order are connected in series through a group of signal lines in turn; and the control node in the network architecture is respectively connected with the transmission node positioned at the first even number position of the preset arrangement sequence and the transmission node positioned at the last even number position 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 through signal lines, respectively.
In one embodiment, the transmission nodes located at even-numbered positions are transmission nodes with a service carrying capacity greater than a preset value.
In one embodiment, the second connection mode includes: and sequentially connecting the transmission nodes positioned on the odd bits and arranged according to the preset arrangement sequence in series through signal wires. Here, the number of the transmission nodes located in the odd-numbered bits is not limited, and the transmission nodes may include all transmission nodes located in the odd-numbered bits or may include some transmission nodes located in 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 the transmission nodes 1, 3, 5, and 7 located at odd numbers are connected in series via signal lines in order.
In one embodiment, a predetermined number of the transmission nodes at odd-numbered bits arranged according to the predetermined arrangement order are connected in series through signal lines in turn.
In one embodiment, the transmission nodes located at even-numbered positions arranged according to the predetermined arrangement order are connected in series through a group of signal lines in turn; the control node in the network architecture is respectively connected with the transmission node positioned at the first odd digit of the preset arrangement sequence and the transmission node positioned at the last odd digit of the preset arrangement sequence through the group of signal wires.
In one embodiment, the second connection mode includes: sequentially connecting the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on the even number positions in series through signal wires; and the transmission nodes on the odd bits arranged according to the preset arrangement sequence are connected in series through signal wires in sequence.
In one embodiment, the control node in the network architecture comprises a second port, and the second port comprises two second sub-ports, wherein one second sub-port is connected with the transmission node at the first odd bit of the predetermined arrangement order through a signal line; the other second sub-port is connected to the transmission node located at the first odd bit of the predetermined arrangement order through a signal line. Or one of the second sub-ports is connected with the transmission node positioned at the last odd-numbered bit of the preset arrangement sequence through a signal line; and the other second sub-port is connected with the transmission node positioned at the last even number position of the preset arrangement sequence through a signal line. Here, the two transmission nodes to which the control node is connected through the signal line are not limited.
In one embodiment, a control node in the network architecture comprises a second port, wherein the second port comprises two sub-ports; one of the second sub-ports is connected in series with the transmission nodes positioned on the odd bits of the preset arrangement sequence through a signal line to form a first series connection group; the other second sub-port is connected with the transmission nodes positioned on the even-numbered positions of the preset arrangement sequence in series through a signal line to form a second series connection group; the first series connection group and the second series connection group are connected in series to form an annular transmission channel.
Exemplarily, 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 at odd-numbered positions are connected in sequence; 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 the even number position are connected in sequence; one second sub-port of the second ports of the control node is connected with the transmission node 1 through a signal line; the other of the second ports of the control node is connected to the transmission node 2 through a signal line.
In one embodiment, the transmission nodes located on even-numbered bits in the order of first predetermined number after the series and the transmission nodes located on odd-numbered bits in the order of second predetermined number after the series are connected in series by a signal line.
Illustratively, as shown in fig. 6, the transmission nodes 9 and 10 on even-numbered positions are connected in series by signal lines.
In one embodiment, the transmission nodes are arranged 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 can also be called as an adjacent station hopping connection mode; the second connection mode can also be called a station jump connection mode. Through the first connection mode, the control node is connected with the transmission node to form a first two-fiber self-healing ring; and the control node is connected with the transmission node by 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; and the control node is connected with the transmission node through an optical fiber.
Exemplarily, as shown in fig. 7, the transmission nodes indicated by the stations 1 to 10 are arranged in a predetermined arrangement order, so as to form a first two-fiber self-healing ring; and the transmission nodes indicated by the stations 1 to 10 are connected in a station-to-station jump connection mode, so that a second optical fiber self-healing ring is formed.
Here, if a transmission node indicated by the station 1 and the station 3 in the first two-fiber self-healing ring fails, the transmission node indicated by the station 2 between the station 1 and the station 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 further provided. In the second optical fiber self-healing ring, even if the transmission node indicated by the station 1 and the station 3 fails, 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 optical fiber self-healing ring. Therefore, under the condition that only two optical fibers are added, the information transmission between each transmission node and the control node is safer and more stable.
In an embodiment, each service system of the network architecture application may respectively set two ports, and when configuring a service, configure the service of one of the ports in the first two-fiber self-healing ring; and the service of 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 in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the at least two transmission nodes are sequentially connected in series through signal wires according to a preset arrangement sequence; the second connection mode is a mode that non-adjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected in series through signal lines in sequence; an escape channel is configured between two adjacent transmission nodes in the at least two transmission nodes which are arranged according to a preset arrangement sequence; the escape passage is used for: the transmission node provides a transmission channel under the condition that the transmission node 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by 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 wire. It should be noted that the escape route is a wired communication link and/or a wireless communication link.
In one embodiment, the bandwidth of the escape route is determined according to the information quantity of the information transmission between the transmission node and the control node in the first state; the first state is a state in which the transmission node transmits information to the control node through the first group of signal lines and the second group of signal lines.
In one embodiment, the information amount is larger than a predetermined value, and the bandwidth of the escape route is smaller 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, the bandwidth is less than a first value if the amount of information is greater than a predetermined value; the amount of information transmitted within a predetermined time indicated by the bandwidth is less than one-half of the predetermined value. Therefore, the bandwidth of the escape passage is configured according to the requirement of information transmission, and the configuration cost is saved when the escape passage does not operate; when the escape passage operates, the information transmission between the transmission node and the control node can be maintained, and the communication resources distributed to the transmission node by the control node can be reduced.
It is understood that the bandwidth of the escape route can be configured according to the user's requirement, and is not limited to the above situation. In some embodiments, the information transmission quantity indicated by the bandwidth of the escape route may be greater than the information transmission quantity of the transmission node and the control node in the first state; the first state is a state in which the transmission node transmits information to the control node through the first group of signal lines and the second group of signal lines.
In the embodiment of the disclosure, the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the at least two transmission nodes are sequentially connected in series through signal lines according to a predetermined arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire. Here, when the transmission node cannot communicate with the control node through the transmission channel corresponding to the first connection method, the transmission node can communicate with the control node through the transmission channel corresponding to the second connection method. Therefore, when a transmission node fails, the transmission channels corresponding to the first connection mode and the second connection mode are complementary. Through the transmission channel, normal information transmission can still be carried out between the transmission node and the control node.
Compared with the prior art in which a large number of communication links are arranged for information transmission, the method and the device have the advantages that the number of signal lines used in the embodiment of the disclosure is small, 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; wherein, the relay transmission node is used for connecting any transmission node. It should be noted that the relay transmission node is used for connecting any one of the transmission nodes, which means that the relay transmission node is separately connected with all transmission nodes except the transmission node in the network architecture; and a transmission channel is arranged between the relay transmission node and all transmission nodes except the relay transmission node and the network architecture. The transmission channel provides a channel for information transmission by the transmission node only when the transmission channel is selected or enabled by the transmission node. And the transmission channel only exists as a standby transmission channel under the conditions of non-selection and non-enabling, and does not occupy the information transmission resource 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 the other transmission nodes except the relay transmission node itself are all connected to the relay transmission node through signal lines.
In one embodiment, the transmission nodes comprise at least two relay transmission nodes; wherein, the at least two relay transmission nodes are used for connecting any one transmission node.
In one embodiment, the communication quality of the relay transmission node is greater than a preset value; wherein the communication quality of the relay transmission node can be determined by the storage capacity of the memory of the transmission node and the processing efficiency of the processor; the communication quality is positively correlated with the storage capacity and processing efficiency of the transmission node.
In one embodiment, the control node in the network architecture is directly connected with the relay transmission node through a signal wire; or a predetermined number of transmission nodes are arranged between the control node and the relay transmission node. Exemplarily, in fig. 8, the relay transmission node may be a transmission node 3 (the transmission node 3 is not shown in the figure as a relay transmission node). Here, the location 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 orphan transmission node comprises: a transmission node which can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by 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 the 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 priority of processing the railway collapse is the 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; and 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, the relay transmission node is connected with the control node, the isolated transmission node acquires 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 acquired IP address as a target address of the isolated transmission node. In this way, information transmission can be performed with the control node through the relay transmission node.
Therefore, based on the service needing emergency 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 service. For services which do not need emergency processing, the isolated transmission node can choose not to configure a new transmission channel, so that resources consumed in configuration analysis are saved.
In one embodiment, the network architecture further comprises:
the automatic switching optical network module is used for switching a transmission channel between the isolated transmission node and the control node; wherein the isolated transmission points comprise: a transmission node which can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by the transmission nodes according to a second connection mode; and the switched transmission channel 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 transmission plane comprises a predetermined number of transmission channels, and the control plane switches the transmission channels between the isolated transmission nodes and the control nodes by using an interface, a protocol and a signaling system 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, a transmission channel is planned again for the isolated node through the address resolution module or the automatic switching optical network module, so that the normal communication between the isolated transmission node and the control node is ensured.
For example, as shown in fig. 8, if a transmission node 1 and a transmission node 5 fail, the transmission node 3 between the transmission node 1 and the transmission node 5 may re-plan a transmission channel for the isolated transmission node through the address resolution module and the automatic switched 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 of the transmission node, and the escape channel is only opened as an alternative when emergency service processing is required. The bandwidth and the communication quality of the escape route can be lower than the communication quality when the network architecture normally operates, so that the escape route which is opened only in an emergency situation can be configured with low cost. The normal operation refers to an operation state that the transmission nodes are connected in a first connection mode and a second mode and perform information transmission. Therefore, the cost for setting the escape passage and the information resource for supporting the operation of the escape passage by each transmission node are saved, and the normal operation of each transmission node under most conditions can be realized.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A network architecture, the network architecture comprising:
the transmission nodes are connected in a first connection mode and a second connection mode, wherein the first connection mode is a mode that the transmission nodes are sequentially connected in series through signal lines according to a preset arrangement sequence; the second connection mode is a mode that nonadjacent transmission nodes in the at least two transmission nodes arranged according to the preset arrangement sequence are connected 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 wire.
2. The network architecture according to claim 1, characterized in that there is at least one set of signal lines between two adjacent transmission nodes connected in series; wherein at least one signal line of a set of signal lines is used for enabling one of the transmission nodes to receive information; at least one signal line of a group of signal lines is used to enable one of the transmission nodes to transmit information.
3. The network architecture of claim 1, wherein the second connection means comprises: and sequentially connecting the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on the even number positions in series through signal wires.
4. The network architecture of claim 1, wherein the second connection means comprises: and sequentially connecting the transmission nodes positioned on the odd bits and arranged according to the preset arrangement sequence in series through signal wires.
5. The network architecture of claim 1, wherein the second connection means comprises: sequentially connecting the transmission nodes which are arranged according to the preset arrangement sequence and are positioned on the even number positions in series through signal wires; and the transmission nodes positioned on the odd bits and arranged according to the preset arrangement sequence are connected in series through signal wires in sequence.
6. The network architecture of claim 5, wherein the serially connected transmission nodes located at even bits and in a first predetermined order are serially connected to the serially connected transmission nodes located at odd bits and in a second predetermined order through a signal line.
7. The network architecture of claim 1, wherein the transport node comprises a relay transport node; wherein, the relay transmission node is used for connecting any transmission node.
8. The network architecture of claim 7, wherein the transmitting 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 orphan transmission node comprises: the transmission node can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by 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, further comprising:
the automatic switching optical network module is used for switching a transmission channel between the isolated transmission node and the control node; wherein the isolated transmission points comprise: a transmission node which can not 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 connected by the transmission nodes according to a first connection mode; the second group of signal lines are signal lines connected by the transmission nodes according to a second connection mode; and the switched transmission channel is a channel for the isolated transmission node to transmit information with the control node through the relay transmission node.
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