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Device for realizing dual-backup switching of Ethernet link inside communication equipment

A technology for Ethernet links and communication equipment, which is applied in the field of devices for realizing dual backup switching of Ethernet links inside communication equipment, and can solve problems such as large switching gaps and complex backplane wiring

Active Publication Date: 2011-09-14
GUANGDONG JIAHE COMM TECH
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Problems solved by technology

[0010] Aiming at the deficiencies of the prior art, the present invention provides a device for realizing double-backup switchover of the Ethernet link inside the communication equipment, which can ensure that the main control board is switched over when the main control board is switched over in the communication system with 1+1 redundant hot backup of the main control board. Fast switching of Ethernet links in the system to achieve the purpose of solving defects such as large switching gap and complex backplane wiring in the prior art

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  • Device for realizing dual-backup switching of Ethernet link inside communication equipment
  • Device for realizing dual-backup switching of Ethernet link inside communication equipment
  • Device for realizing dual-backup switching of Ethernet link inside communication equipment

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Embodiment Construction

[0046] The structure of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0047] We know that both ends of the Ethernet link are in auto-negotiation mode, and the IP address and MAC address of the target device are determined through the ARP table.

[0048] The so-called self-negotiation:

[0049] Each node in the Ethernet is connected together by a twisted pair, and must agree on the link speed and full-duplex / half-duplex mode before communicating. This process is called the self-negotiation process of the network, which is realized by the link pulse. When a new host is found on the network, Link Pulse sends a "Link Advertisement" to establish a connection. The interval between link pulse transmissions is about 16±8 milliseconds. Considering the response process at both ends of the network link, the initial link establishment process at both ends of the network link is about 50 milliseconds. The auto-negotiation proces...

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Abstract

The invention discloses a device for realizing dual-backup switching of an Ethernet link inside communication equipment, belonging to the technical field of product structures of devices for mainly realizing dual-backup of internal network links by systems in a communication technical equipment product. The device for realizing dual-backup switching of the Ethernet link inside the communication equipment comprises at least one main control mother plate, at least one main control opposite plate, at least one back plate and at least one business plate, wherein a structure, in which the main control mother plate and the main control opposite plate are in a dual-backup relation in whole device, control flow analysis and business flow direction control are mainly finished and only one main control plate is in a primary state while the other one main control plate is in a standby state at any time, is formed. By using the device disclosed by the invention, a fast switching effect can be realized on the basis of reducing the wiring difficulty and cost of the back plate and the business plate while the main and standby backups are switched.

Description

technical field [0001] The invention relates to a device for realizing double-backup switching of internal Ethernet links of communication equipment, which belongs to the technical field of communication technology equipment product structure, and specifically belongs to a product of communication technology equipment products that mainly realizes dual backup devices for internal network links of the system Structured technical fields. Background technique [0002] Usually, in some high-reliability applications, the requirements for the voice gateway will clearly propose 1+1 dual-redundant hot backup of key components, especially the dual backup of the main control board. In the voice gateway system, the control flow or service flow of each service board in the system is processed by the main control board in the system and then interacts with other networks or servers in the form of IP packets in the form of IP packets. If the main control board fails, or the external netw...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/24
Inventor 黄俊良粟兵张勇胜周伟强房军杰
Owner GUANGDONG JIAHE COMM TECH
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