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VOLT multicast method and OLT equipment

A technology of multicast and equipment, applied in the field of optical communication, can solve the problems of inability to distinguish ONU users of different service requirement levels, inability to realize ONU granular vOLT multicast, etc., and achieve refined multicast operation and management, and the deployment method is simple and convenient. The effect of reducing bandwidth consumption

Active Publication Date: 2020-08-04
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For the above defects or improvement needs of the prior art, the present invention provides a vOLT multicast method and OLT equipment. In the prior art, it is impossible to distinguish ONU users of different service demand levels, resulting in the technical problem that the vOLT multicast at the ONU granularity cannot be realized

Method used

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  • VOLT multicast method and OLT equipment
  • VOLT multicast method and OLT equipment
  • VOLT multicast method and OLT equipment

Examples

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Embodiment 1

[0063] Such as figure 1 As shown in , it is a schematic diagram of a vOLT multicast implementation solution provided by the embodiment of the present invention. The implementation of the program is as follows:

[0064] Firstly, different forwarding domains are pre-allocated for each vOLT system in the PON system, and different GEMPORT IDs are allocated for each vOLT system, and the GEMPORT ID is used to bear the downlink multicast flow. And maintain the first table to record the corresponding relationship between each vOLT ID and GEMPORT ID. In this way, the system multicast pre-configuration is completed, and then the configuration of the GEMPORT ID needs to be delivered to the ONU user.

[0065] The control layer software module completes the service configuration of vOLT, and configures each ONU under each PON port into a vOLT system with different service requirements. The optical wavelengths of GPON and XGPON / XGSPON are different, and two different physical channels ar...

Embodiment 2

[0072] Such as figure 2 As shown, it is a flowchart of a method for creating a mapping between a vOLT ID and a downlink multicast GEMPORT ID in an embodiment of the present invention, and the steps include:

[0073] Step S101: During the vOLT initialization process, assign a unique GEMPORT ID for each vOLT to bear the downlink multicast flow, and record it in the first table. As shown in the first table, it is a mapping relationship table between vOLT ID and GEMPORT ID. It can be seen that each vOLT ID is in one-to-one correspondence with each GEMPORT ID.

[0074] Mapping relationship between vOLT ID and GEMPORT ID in the first table

[0075] vOLT ID GEMPORT ID 0 A 1 B 2 C n X

Embodiment 3

[0077] Such as image 3 As shown, it is used to create a flow chart of ONU ID & physical channel and vOLT ID mapping method in the embodiment of the present invention, and the steps include:

[0078] Step S201: when configuring the vOLT attribute of the ONU, record the mapping information of the physical channel of the ONU, the ONU ID binary group and the vOLT ID into a second table, that is, map to the vOLT ID through the combination of the ONU ID and the physical channel.

[0079]The second table is the mapping relationship table between ONU ID & physical channel and vOLT ID, that is, the two-tuple ONU ID and physical channel are mapped to vOLT ID; and then the combination query of the second table and the first table can get the corresponding ONU ID & physical channel GEMPORT ID. As in the example in the second table, two ONUs No. 1 and No. 2 under physical channel 1 and No. 1 ONU under physical channel 2 are configured in vOLT No. 0; ONU No. 3 under physical channel 2 is ...

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Abstract

The invention discloses a vOLT multicast method, which comprises the following steps: allocating different GEMPORT IDs special for multicast and used for bearing downlink multicast streams to each vOLT, and establishing a first table of a binding relationship between the vOLT IDs and the GEMPORT IDs special for multicast; configuring each ONU into the vOLT with different service demand levels, andestablishing a second table of binding relationships among the ONU IDs, the physical channels and the corresponding vOLT IDs; in combination with the first table, acquiring a special GEMPORT ID for multicast corresponding to each ONU, issuing the special GEMPORT ID for multicast to the corresponding ONU, and configuring the attribute of the GEMPORT ID as broadcast; and analyzing the uplink multicast signaling message of the ONU to realize the joining or leaving of the ONU multicast. According to the method provided by the invention, each ONU under the PON port is configured to the vOLT with different service requirement levels in the vOLT system, and different GEMPORT IDs are allocated to each vOLT to bear downlink multicast streams, so that ONU user multicast isolation with different service requirement levels is realized. The invention also provides OLT equipment for realizing the method.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and more specifically relates to a vOLT multicast method and OLT equipment. Background technique [0002] PON (Passive Optical Network, Passive Optical Network) system consists of OLT (Optical Line Terminal, Optical Line Terminal) at the central office, ODN (Optical Distribution Network, Optical Distribution Network) and ONU (Optical Network Unit, Optical Network Unit) on the user side . [0003] GPON (Gigabit-capable Passive Optical Networks, passive optical network with gigabit function) system and XGPON / XGSPON (10-Gigabit-capable Passive Optical Networks, passive optical network with ten-gigabit function) system are optical Access network equipment, which can carry Ethernet services, analog telephone services, IPTV (Internet Protocol Television, Internet TV) and other services. With the deployment and planning of high-bandwidth equipment by major operators, PON equipment is incr...

Claims

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Application Information

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IPC IPC(8): H04Q11/00
CPCH04Q11/0005H04Q11/0062H04Q2011/0047H04Q2011/0079
Inventor 明世鹏吕志华胡威夏灿军郭紫健
Owner FENGHUO COMM SCI & TECH CO LTD