Light network unit log method based on inquiry in Ethernet non-light source network

Abstract

The method comprises: after the optical line terminal (OLT) sends a registration message to the optical network unit (ONU), it sends a strobe message with a wideband authorization; if ONU process the registration message rapidly, then it can return a registration confirmation message to the OLT in the wideband authorization time defined by the strobe message so as to make successful registration; if in the wideband authorization time the registration message is not returned, then the OLT sends a strobe message to ONU in order to enquiry its state; after the ONU processes the registration message, the OLT sends the strobe message with a wideband authorization again in order to provide a wideband authorization for the ONU.

Description

technical field

[0001] The invention relates to a multipoint control protocol (MPCP) discovery process applied to an Ethernet passive optical network (EPON), in particular to a method for registering an optical network unit based on an inquiry mechanism. Background technique

[0002] With the rapid development of the Internet and new services and applications such as IPTV, which have higher and higher requirements for access bandwidth, optical fiber access has become an inevitable direction for the development of broadband access networks. Considering the maturity of technology and operating cost, EPON is the main implementation method of optical fiber access, and it is also the access technology with the most development potential.

[0003] The EPON system adopts a broadband shared point-to-multipoint topology. Each optical line terminal (OLT) is connected to multiple optical network units (ONUs) through an optical distribution network (ODN). The downlink uses broadcast tra...

Examples

Embodiment Construction

[0016] Embodiments of an ONU registration method based on an inquiry mechanism in an Ethernet passive optical network according to the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 It represents the handshake process of the discovery message defined in the IEEE 802.3ah standard in the prior art. Such as figure 1 As shown, the discovery process is initiated by the OLT, which periodically generates a legal discovery time window to detect offline ONUs. The OLT notifies the ONU of the period of the discovery window by broadcasting a discovery gate message (Discovery GATE). After receiving the discovery strobe message, the off-line ONU waits for the start of the discovery window period, and then sends a registration request message REGISTER_REQ to the OLT during the discovery window period. After receiving the valid REGISTER_REQ, the OLT registers the ONU, allocates and specifies the logical link identifier (LL...

technical field

[0001] The invention relates to a multipoint control protocol (MPCP) discovery process applied to an Ethernet passive optical network (EPON), in particular to a method for registering an optical network unit based on an inquiry mechanism. Background technique

[0002] With the rapid development of the Internet and new services and applications such as IPTV, which have higher and higher requirements for access bandwidth, optical fiber access has become an inevitable direction for the development of broadband access networks. Considering the maturity of technology and operating cost, EPON is the main implementation method of optical fiber access, and it is also the access technology with the most development potential.

[0003] The EPON system adopts a broadband shared point-to-multipoint topology. Each optical line terminal (OLT) is connected to multiple optical network units (ONUs) through an optical distribution network (ODN). The downlink uses broadcast tra...

Examples

Embodiment Construction

[0016] Embodiments of an ONU registration method based on an inquiry mechanism in an Ethernet passive optical network according to the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 It represents the handshake process of the discovery message defined in the IEEE 802.3ah standard in the prior art. Such as figure 1 As shown, the discovery process is initiated by the OLT, which periodically generates a legal discovery time window to detect offline ONUs. The OLT notifies the ONU of the period of the discovery window by broadcasting a discovery gate message (Discovery GATE). After receiving the discovery strobe message, the off-line ONU waits for the start of the discovery window period, and then sends a registration request message REGISTER_REQ to the OLT during the discovery window period. After receiving the valid REGISTER_REQ, the OLT registers the ONU, allocates and specifies the logical link identifier (LL...

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