Network communication architecture

Abstract

The utility model discloses a network communication architecture, which comprises a host A and a host B. Network connection between the host A and the host B comprises a physical layer, a data link layer, a network layer, a transmission layer, a session layer, a presentation layer and an application layer, the switch layer comprises a core layer switch, a convergence layer switch and an access layer switch, the core layer switch and the convergence layer switch are connected through double links, and the convergence layer switch and the access layer switch are connected through double links. According to the utility model, the dual-core-layer switch is started, so that the other core device can guarantee the uninterrupted operation of the network part after one core device fails; a convergence layer switch is started, it is guaranteed that large-flow data of an access layer is buffered on convergence layer equipment, a strategy can be set for control, uninterrupted operation of a network is guaranteed, practicability is high, and the method is worthy of application and popularization.

Description

Technical Field

[0001] The utility model relates to the field of network technology, and in particular to a network communication architecture. Background Art

[0002] In existing network architectures, switches and routers usually use a single-link connection method; the main defects of these connection methods are: when a link fails, the business carried out by this link will be interrupted accordingly, which will cause serious losses due to the business interruption; without an aggregation layer switch, it is impossible to aggregate users at the access layer, and it is impossible to aggregate, forward and switch packets. The core layer switch is greatly impacted by the traffic of the access switch, which can easily cause various network problems; when the core layer switch fails, the aggregation layer switch fails, or the link between the core and aggregation layers fails, the business of the device or the link will be interrupted, causing serious losses. Therefore, a network communication architecture is needed to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a network communication architecture to solve the above-mentioned defects in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A network communication architecture includes host A and host B. The physical layer of the network connection between host A and host B is a switch layer. The switch layer includes a core layer switch, an aggregation layer switch, and an access layer switch. The core layer switch and the aggregation layer switch are connected via a dual link, and the aggregation layer switch and the access layer switch are connected via a dual link.

[0006] Furthermore, the host A is a data management center server, and the host B is a client.

[0007] Furthermore, the core layer switches include core layer switch A and core layer switch B, and the core layer switches are four-layer switches.

[0008] Furthermore, the aggregation layer switches are provided in several groups, and the aggregation layer switches are three-layer switches.

[0009] Furthermore, the access layer switches are provided in several groups, and the several access layer switches are connected to the several aggregation layer switches in a one-to-one correspondence, and the access layer switches are layer 2 switches.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The present invention is a network communication architecture, including host A as a data management center server, which can also be a data transfer center server, and host B as a client used by users, including mobile phones, computers, etc. The connection between host A and host B includes a physical layer connection, and also includes connections between the data link layer, network layer, transport layer, session layer, presentation layer and application layer. Among them, the physical layer is the switch layer, and the switch layer includes a core layer switch, an aggregation layer switch and an access layer switch. The core layer switch and the aggregation layer switch are connected through dual links, and the aggregation layer switch and the access layer switch are connected through dual links. The dual links are optical fiber links. When one link fails, the other link can also perform network transmission, ensuring stable operation of the network and avoiding data loss.

[0012] 2. The core layer switch, aggregation layer switch and access layer switch in the present invention are respectively a fourth layer switch, a third layer switch and a second layer switch;

[0013] 3. The present invention enables dual-core layer switches to ensure that if one core device fails, the other can ensure uninterrupted operation of the network; enables aggregation layer switches to ensure that large-flow data of the access layer is buffered on the aggregation layer device and can be controlled by setting policies. At the same time, a bundled dual-link uplink is used between the access layer and aggregation layer switches to ensure that if one aggregation layer device fails, data can be transmitted through other aggregation layer switches, thereby ensuring uninterrupted operation of the network.

[0014] To sum up, the utility model enables dual core layer switches to ensure that after one core device fails, the other can ensure uninterrupted operation of the network; enables the aggregation layer switch to ensure that the large flow of data at the access layer is buffered on the aggregation layer device and can be controlled by setting policies. At the same time, a bundled dual-link uplink is used between the access layer and the aggregation layer switches to ensure that after a device at the aggregation layer fails, the data can be transmitted through other aggregation layer switches, ensuring uninterrupted operation of the network. It is highly practical and worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a schematic diagram of the connection structure of a network communication architecture proposed by the present invention.

[0017] In the figure: 1-Host A, 2-Core layer switch, 3-Aggregation layer switch, 4-Access layer switch, 5-Host B. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] Reference Figure 1 The network communication architecture between the data management center server as host A1 and the user client as host B5 includes the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. The physical layer is the switch layer, which includes core layer switch 2, aggregation layer switch 3, and access layer switch 4. The core layer switch 2 and aggregation layer switch 3 are connected via dual links, and the aggregation layer switch 3 and access layer switch 4 are connected via dual links. The user client can be a mobile phone, computer, etc.

[0021] The dual links are optical fiber links. When one link fails, the other link can still perform network transmission, ensuring stable operation of the network and avoiding data loss.

[0022] The core layer switch 2 includes a core layer switch A and a core layer switch B. The core layer switch 2 is a four-layer switch.

[0023] The core layer switch 2 in this invention is a four-layer switch with a chassis-like appearance and numerous redundant components. The core layer switch can also be considered the gateway of the switch. During network planning and design, core layer equipment typically accounts for the majority of the investment, as core layer equipment requires high redundancy, reliability, and transmission speed, and is used for connecting to servers.

[0024] The aggregation layer switches 3 are provided with several groups, and the aggregation layer switches 3 are three-layer switches.

[0025] The aggregation layer switch 3 in the present invention is the aggregation point of multiple access layer switches 4. It must be able to handle all communication traffic from the access layer devices and provide an uplink to the core layer. Therefore, compared with the access layer switch 4, the aggregation layer switch 3 requires higher performance, fewer interfaces and a higher switching rate.

[0026] The access layer switches 4 are provided in several groups, and the access layer switches 4 are connected to the aggregation layer switches 3 in a one-to-one correspondence. The access layer switches 4 are layer 2 switches.

[0027] The access layer switches 4 in this invention primarily prioritize high network performance and functionality in the core and aggregation layer designs. Therefore, the access layer design emphasizes the use of cost-effective devices. The access layer serves as the interface between end users and the network, requiring plug-and-play functionality and ease of use and maintenance.

[0028] The definitions of the above-mentioned second-layer switches, third-layer switches, and fourth-layer switches are as follows:

[0029] The second layer switch completes end-to-end data exchange based on the MAC address of the second layer data link layer and the selection of routes through the station table;

[0030] The third layer switch completes end-to-end data exchange directly based on the third layer network layer IP address;

[0031] Both Layer 2 and Layer 3 switches utilize an end-to-end switching process based on port addresses. While this MAC and IP address-based switching technology can significantly increase data transmission rates between nodes, it cannot autonomously determine or dynamically limit the port's switching process and data flow based on the application requirements of the port's host. This means it lacks the intelligent switching capabilities of Layer 4 applications. Layer 4 switches not only perform end-to-end switching but also determine or limit the amount of data exchanged based on the application characteristics of the port's host. Simply put, Layer 4 switches are based on the transport layer packet switching process and are a new type of LAN switch designed to meet the user application switching requirements of the TCP / IP protocol application layer.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A network communication architecture, comprising a host A (1) and a host B (5), wherein the physical layer of the network connection between the host A (1) and the host B (5) is a switch layer, characterized in that: The switch layer comprises a core layer switch (2), a convergence layer switch (3) and an access layer switch (4); the core layer switch (2) and the convergence layer switch (3) are connected via a dual link, and the convergence layer switch (3) and the access layer switch (4) are connected via a dual link.

2. A network communication architecture according to claim 1, characterized in that: The host A (1) is a data management center server, and the host B (5) is a client.

3. A network communication architecture according to claim 2, characterized in that: The core layer switch (2) comprises a core layer switch A and a core layer switch B, and the core layer switch (2) is a four-layer switch.

4. A network communication architecture according to claim 3, characterized in that: The aggregation layer switches (3) are provided with several groups, and the aggregation layer switches (3) are three-layer switches.

5. A network communication architecture according to claim 4, characterized in that: The access layer switches (4) are provided in a plurality of groups, and the plurality of access layer switches (4) and the plurality of aggregation layer switches (3) are connected in a one-to-one correspondence, and the access layer switches (4) are layer 2 switches.

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