Method, device and system for carrying MPLS messages in PON

A technology of message encapsulation and message, which is applied in the field of optical communication network, can solve the problems of large message header overhead, complex implementation, and low bearer efficiency, so as to reduce the overhead of the protocol stack layer, simplify the layer of the protocol stack, and improve the bearer efficiency Effect

Inactive Publication Date: 2010-02-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology can only carry MPLS to Ethernet first, perform QoS (Quality of Service) mapping from MPLS to Ethernet first, and then carry Ethernet to PON, and perform the second QoS mapping from Ethernet to PON , the protocol stack has many layers, the bearer efficiency is low, the implementation is more complicated, and the cost is high; in addition, the backhaul of the base station has relatively high requirements on the bandwidth of the PON, and the PON is a shared medium access technology, which is the bandwidth bottleneck of the network. The protocol stack The packet header overhead caused by multiple layers is very large, which brings about the bandwidth bottleneck problem of PON

Method used

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  • Method, device and system for carrying MPLS messages in PON
  • Method, device and system for carrying MPLS messages in PON
  • Method, device and system for carrying MPLS messages in PON

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Embodiment Construction

[0060] The method, ONU / ONT / OLT, and system for carrying MPLS packets in the PON of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0061] On the one hand, an embodiment of the present invention provides a method for sending an MPLS message carried in a PON.

[0062] The embodiment of the present invention can be used in the first scenario, that is, the ONU / ONT obtains the MPLS message from the customer premises network, and can also be used in the second scenario, that is, the OLT obtains the MPLS message from the service function point. The embodiment of the present invention is described by taking the second scenario as an example, that is, the OLT obtains the MPLS message from the service function point.

[0063] Such as image 3 As shown, the method for sending MPLS packets in PON in the embodiment of the present invention includes:

[0064] The method for sending the MPLS message in the PON of the ...

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Abstract

The embodiment of invention discloses a sending method, a receiving method, an ONU (optical network unit) / ONT (optical network terminal) / OLT (optical line termination) and a communication system for PON carried MPLS messages, relates to an optical communication network and is designed for solving the technical problem that the protocol stack hierarchy is complicated when the passive optical network (PON) is coupled with a mobile network. The sending method comprises the following steps of: acquiring the MPLS messages; encapsulating the MPLS messages into GEM frames; and sending the GEM frames.The receiving method comprises the following steps of: receiving the GEM frames; encapsulating the GEM frames into MPLS messages; and sending the MPLS messages. The method, the device and the systemare used for tightly coupling the passive optical network and the mobile network.

Description

technical field [0001] The invention relates to an optical communication network, in particular to a method for carrying MPLS messages in a PON, an ONU / ONT / OLT and a system. Background technique [0002] The entire reference architecture of Optical Access Network (OAN) is composed of Customer Premises Network (CPN), Access Network (Access Network) and Service Node Function, such as figure 1 shown. Among them, in the access network, AF (AdaptationFunction, adaptation function body) is an optional device, mainly to provide ONU / ONT / ONT (Optical Network Unit, Optical Network Unit / Optical Network Terminal, Optical Network Terminal) interface and UNI (UserNetwork Interface, user network interface) interface conversion, AF can also be built in ONU / ONT, so that (a) the reference point can be omitted. The AF can also be placed behind the OLT as a mutual conversion between the OLT (Optical Line Termination, optical line terminal) interface and the SNI (Service Node Interface, servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08H04J3/24
CPCH04Q11/0071H04W52/0251H04Q2011/0077H04L45/50H04Q11/0067H04L12/4633H04L69/14H04L29/06088Y02B60/50H04L45/00H04W76/28H04W52/0206H04W52/02H04W52/0245H04W52/0216H04W52/0229Y02D30/70
Inventor 郑若滨
Owner HUAWEI TECH CO LTD
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