CN101986719A

CN101986719A - Method for expanding registered frame in EPON system

Info

Publication number: CN101986719A
Application number: CN2010105495873A
Authority: CN
Inventors: 张宇
Original assignee: HANGZHOU KANDIT SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: HANGZHOU KANDIT SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2010-11-19
Filing date: 2010-11-19
Publication date: 2011-03-16

Abstract

The invention relates to a method for expanding a registered frame in an EPON system, which expands a standard registered frame by using padding bytes which are not used in the standard registered frame, and increases one byte of rejection reason, registration canceling reason and re-registration reason. When the EPON system is debugged, if the current ONU is disconnected, the registered frame can be received at the ONU side, but the registration canceling reason of the current ONU can not be confirmed according to the content of the standard registered frame, thus the purpose of the invention is completed through the following technical scheme: (1) removing the padding bytes in the standard registered frame, wherein other contents are not changed; and (2) expanding the standard registered frame by using the first byte of the padding bytes.

Description

The extended method of registration frame in the EPON system

Technical field

What the present invention relates to is among the OLT of a kind of EPON of being applied to system, is used for debugging the extended method of registration frame of the registration process of ONU in the EPON system.

Background technology

The EPON system is the network system of a kind of point to multiple spot, and it mainly comprises three parts: local side OLT, terminal (user side) ONU and passive optical splitter ODN, as shown in Figure 1.

In the EPON system, what begin most also is a vital step will solve the registration problem of optical network unit (ONU) exactly. for realizing extensibility that the EPON system is good and oam easily, after system opens operation, in the time of need increasing new ONU or the ONU after the fault restoration and will join system again with business development, wish these ONU automatically to add and do not influence operate as normal ONU that standard EPON discovery procedure as shown in Figure 2.

In the ONU registration process and after the ONU registration, the registration frame all plays great role, and as allowing the ONU registration, refusal ONU registration even can require the ONU volume that disappears re-registers etc., and the registration frame of standard as shown in Figure 3.

Summary of the invention

The objective of the invention is to overcome the deficiency that prior art exists, and the extended method of registration frame in a kind of EPON system is provided, it utilizes the byte of padding that does not use in the standards registration frame to expand the standards registration frame, has increased the Reason For Denial of 1 byte, the reason that disappears and re-register reason.

The objective of the invention is to finish by following technical solution, in debugging EPON system, if current ONU goes offline, can receive the registration frame in the ONU side, but can't confirm a current ONU reason that disappears according to the standards registration content frame, 1, remove byte of padding in the standards registration frame, other guide is constant; 2, utilize first byte of byte of padding, the standards registration frame is expanded.

Byte content of expansion and expression implication are as follows in above-mentioned (2):

Content	The expression implication
		0x01	Receive non-registered request in the flag=1 registration window
0x02	The flag=1 software requirement re-registers
		0x03	Flag=2 waits for ONU registration response timeout
0x04	Flag=2 ONU refuses registration
		0x05	Flag=2 MPCP is overtime
0x06	Flag=2 RTT drift
		0x07	The flag=2 software requirement ONU volume that disappears
0x08	Flag=2 ONU authentification failure
		0x09	The flag=4 MAC Address is illegal
0xa	The registration of flag=4 software refusal

Wherein flag is the flag territory of standards registration frame: 1 expression re-registers reason; 2 represent to disappear a reason; 4 expression Reasons For Denial.

Method of the present invention has been applied to actual chip R﹠D process, and has passed through actual test, and compatibility standard MPCP has fully increased the debugging property of EPON system simultaneously.

Description of drawings

Fig. 1 is the EPON system architecture diagram.

Fig. 2 is the block diagram of standard EPON discovery procedure.

Fig. 3 is the registration frame schematic block diagram of standard.

Fig. 4 is a registration frame schematic block diagram of the present invention.

Embodiment

The present invention will be described in detail below in conjunction with accompanying drawing: the present invention is in debugging EPON system, if current ONU goes offline, can receive the registration frame in the ONU side, but can't confirm a current ONU reason that disappears according to the standards registration content frame.The present invention utilizes the byte of padding that does not use in the standards registration frame to expand the standards registration frame, has increased the Reason For Denial of 1 byte, the reason that disappears and re-register reason, as shown in Figure 4:

(1) remove byte of padding in the standards registration frame, other guide is constant;

(2) utilize first byte of byte of padding, the standards registration frame is expanded;

Claims

1. the extended method of registration frame in the EPON system is characterized in that this method is to utilize the byte of padding that does not use in the standards registration frame to expand the standards registration frame, has increased the Reason For Denial of 1 byte, the reason that disappears and re-register reason,

Remove byte of padding in the standards registration frame, other guide is constant;

Utilize first byte of byte of padding, the standards registration frame is expanded.

2. the extended method of registration frame in the EPON according to claim 1 system is characterized in that a byte content of expansion in above-mentioned (2) and represents that implication is as follows: