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Communication network device and system

A communication network and optical network technology, which is applied in the field of communication network devices and systems, can solve problems such as inability to switch optical fiber links, and services cannot operate normally, and achieve the effect of ensuring normal operation

Active Publication Date: 2014-08-13
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0005] However, when the optical path between the OLT and the first device at the substation fails, it is difficult for the downstream ONU to know that the upstream path of the OLT is faulty, so in this case, no optical fiber link Switching, so that the business cannot run normally

Method used

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The embodiment of the present invention discloses a communication network device, such as figure 2 As shown, the device may include: a first optical network distribution unit 100, a second optical network distribution unit 200, a first main optical fiber link 300 with a real-time switch 300A and a real-time switch 300B, a real-time switch 400A and a real-time switch The second primary fiber optic link 400 of 400B.

[0042] The first optical network di...

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Abstract

The invention discloses a communication network device and system. The device comprises a first optical network distribution unit, a second optical network distribution unit, a first main optical fiber link provided with at least one real-time exchanger, and a second main optical fiber link provided with at least one real-time exchanger. The real-time exchangers are devices based on a PTN and an EPON. The first main optical fiber link is connected between a first PON port of the first optical network distribution unit and a first PON of the second optical network distribution unit. The second main optical fiber link is connected between a second PON port of the first optical network distribution unit and a second PON port of the second optical network distribution unit. The first PON port and the second PON port of the first optical network distribution unit are used respectively by the first optical network distribution unit to send the same service data to the second network optical network distribution unit via the first main optical fiber link and the second main optical fiber link so that when one main optical link fails, the service data can also be sent to the second optical network distribution unit through the other main optical fiber link, and normal operation of services is ensured.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically relates to a communication network device and system. Background technique [0002] Existing communication network systems generally have a core layer, an aggregation layer, and an access layer. The core layer and the aggregation layer can be collectively referred to as the transport layer. The transport layer and the access layer are generally composed of different devices. [0003] For example, the transport layer device may include a first device composed of an SDH-based multi-service transfer platform (Multi-Service Transfer Platform, MSTP); the access layer may include a first device composed of an Ethernet Passive Optical Network (Ethernet Passive Optical Networks, EPON) composed of the second device. [0004] specific, figure 1 A network device that constitutes the above-mentioned communication network system is shown, consisting of figure 1 It can be...

Claims

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Application Information

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IPC IPC(8): H04B10/035H04B10/038
Inventor 张磊马平徐伟东沈浩钦张倩朱航张少卿张利军
Owner STATE GRID CORP OF CHINA
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