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Method and device for realizing line card upper-connected master control panel in distributed OLT

A main control panel and midline card technology, which is applied in the field of realizing distributed OLT midline cards connected to the main control panel, can solve problems such as increasing equipment costs, and achieve the effects of controlling equipment costs, controlling deployment costs, and reducing deployment complexity.

Inactive Publication Date: 2019-02-22
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional solution uses a special one-to-two switching chip to solve the dual transmission and single reception between the line card and the fabric master and backup, which greatly increases the equipment cost

Method used

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  • Method and device for realizing line card upper-connected master control panel in distributed OLT
  • Method and device for realizing line card upper-connected master control panel in distributed OLT
  • Method and device for realizing line card upper-connected master control panel in distributed OLT

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a method for realizing a distributed OLT central line card uplink main control disk according to an embodiment of the present invention may include the following steps:

[0031] Step S101, preset the mapping relationship between the local port and the main and standby cards of the main control disk.

[0032] Step S102, when receiving the message sent by the uplink port, discard the message sent from the standby card of the main control disk, and forward the message to the local port corresponding to the main card of the main control disk.

[0033] Step S103, when receiving the message sent by the downlink interface, multicast the message to the local ports corresponding to the active and standby cards of the main control disk, and then send the messages from the local ports to the main control disk respectively. Primary and secondary cards.

[0034] Through the embodiments of the present invention, the same function as that of a switching ch...

Embodiment 2

[0036] In order to solve the above-mentioned technical problem, on the basis of the first embodiment, the embodiment of the present invention also discloses another method for realizing the connection of the central line card of the distributed OLT to the main control disk through the serial-to-parallel converter. The serializer-deserializer (SerDes) is an abbreviation of a serializer and a deserializer. The serializer Serializer is also called the SerDes transmitting end Tx, and the Deserializer is also called the receiving end Rx. The serial-to-parallel converter is used to realize the serial-to-parallel conversion. In the incoming direction of the message, the parallel signal is converted into a serial signal and sent to the chip for subsequent further processing. Specifically, as figure 2As shown, embodiments of the present invention may include:

[0037] In step S201, the uplink port of the line card includes serial-to-parallel converters respectively connected to the m...

Embodiment 3

[0050] For the situation that there is no concept of serial-to-parallel converter SerDes on the device, resulting in the situation that the connection with the active and standby fabric cards cannot be realized according to the mapping relationship of SerDes, the embodiment of the present invention is provided as a supplement, specifically, as image 3 As shown, the following steps may be included:

[0051] Step S301, preset the mapping relationship between the local port and the active and standby cards of the master control disk.

[0052] Step S302, when receiving the message sent by the uplink port, close the message receiving on the local port mac of the standby card corresponding to the main control disk, and enable the message receiving on the local port mac of the main card corresponding to the main control disk .

[0053] For services coming from the uplink port, control whether the port receives packets by closing and enabling rxEnable on the mac. Specifically, both...

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Abstract

The invention discloses a method and device for realizing line card upper-connected master control panel in a distributed OLT (optical line terminal). The method comprises the following steps: presetting a mapping relation of a local port and an active-standby card of a master control panel; when receiving a message sent by an upper connecting port, abandoning the message sent from the standby card of the master control panel, and forwarding the message to the local port corresponding to the active card of the master control panel; when receiving the message sent by an upper connecting port, multicasting the message to the local port corresponding to the active / standby card of the master control panel, and then sending the message to the active / standby card of the master control panel fromthe local port. Through the method and device disclosed by the invention, the dual-transmitting and single-receiving and fast and reliable active-standby conversion on the data service layer can be accomplished by using a single chip for the line card in the OLT are realized, and the OLT equipment cost is saved.

Description

technical field [0001] The invention relates to computer network communication technology, in particular to a method and a device for realizing a distributed OLT middle line card uplink main control disk. Background technique [0002] An optical line terminal (OLT) of an Ethernet Passive Optical Network (EPON) generally adopts a plug-in card structure. At present, the OLTs of mainstream manufacturers are composed of main control boards (active and standby) and line cards (or also called service boards or interface boards). Generally, the main control board is responsible for the main switching, that is, the switching between line cards inside the equipment and the switching to the network equipment at the aggregation layer. It is mainly composed of a medium-to-high-end switching chip and a medium-to-high-end CPU. The line card is mainly used to provide EPON interface, which is composed of EPON chip plus a mid-range switch chip and CPU. [0003] In order to consider redunda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00
CPCH04Q11/0005H04Q11/0062H04Q2011/0079
Inventor 杨曙军李晨徐海青裴园
Owner SUZHOU CENTEC COMM CO LTD
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