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Double PON ONU optical link protection switching device and protection method

A technology for protection switching and optical link, applied in the field of network communication, it can solve the problems of long time-consuming active/standby switching, insufficient CPLD resources, etc., achieving the effects of easy negotiation, ensuring system data security, and reducing switching frequency

Active Publication Date: 2016-07-06
SHENZHEN NEW GREENNET TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The technical problem to be solved by the present invention is: in the EPON system, when the main optical link is abnormal, by triggering CPLD (Complex ProgrammableLogicDevice, complex programmable logic device) to realize the main-standby data switchover, solve the existing technology CPLD resource is insufficient, the main To overcome the time-consuming problem of standby switching, provide a dual PON port ONU optical link protection switching device and protection method with high data switching efficiency and low data loss

Method used

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  • Double PON ONU optical link protection switching device and protection method
  • Double PON ONU optical link protection switching device and protection method
  • Double PON ONU optical link protection switching device and protection method

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Embodiment Construction

[0063] The present invention will be further described in detail with an embodiment below, but it should be noted that the protection scope of the present invention is not limited thereto.

[0064] like figure 2 As shown, the present invention provides a dual PON port ONU optical link protection switching device, including: the first optical module optical_1, the second optical module optical_2, the first PON_MAC chip PON_MAC1, the second PON_MAC chip PON_MAC2, complex programmable logic Device CPLD, multiplexer MUX, switch chip SWTICH;

[0065] Dual PON optical modules (optical_1, optical_2) connect two different OLTs to form a hand-in-hand protection link;

[0066] The corresponding control lines of the dual PON optical modules are electrically connected to the corresponding CPU (PON_MAC1, PON_MAC2), the LOS signal interruption line of the optical module is electrically connected to the corresponding CPU, optical_1 is connected to PON_MAC1, optical_2 is connected to PON_MA...

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Abstract

The invention discloses a double PON ONU optical link protection switching device and protection method. The device comprises a first optical module, a second optical module, a first PON_MAC chip, a second PON_MAC chip, a complex programmable logic device CPLD, a multiplexer MUX and an exchange chip. The first optical module and the second optical module are connected with two different optical line terminals OLT to form a protection link hand in hand. According to the invention, an uplink interface RGMII of the exchange chip is in direct line connection with the PON_MAC chip interface, MDC / MDIO is in direct connection with the multiplexer, a control line is used to control the CPLD to complete a switching motion, and the problems in the prior art that the CPLD source is insufficient and the main-standby switching time is long are solved.

Description

technical field [0001] The invention belongs to the field of network communication, and relates to an EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) system, in particular, to a dual PON (Passive Optical Network, passive optical network) port ONU (Optical Network Unit, Optical Network Unit) optical link Protection switching device and protection method. Background technique [0002] The development of EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) technology has accelerated the reform of light into copper and back, and the Internet has developed rapidly. EPON technology is standardized by the IEEE802.3EFM working group, adopting a unified standard to realize the interconnection of various manufacturers. Multiple services are provided on the Ethernet, which enables the integration of the three major networks of telecommunication network, Internet, and broadcasting network to meet the communication service requirements of v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/032H04B10/038
CPCH04B10/032H04B10/038
Inventor 龙金
Owner SHENZHEN NEW GREENNET TECH
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