Data communication method in optical network system, optical network unit and system
AssigneeHuawei Technologies Co., Ltd.
InventorBiao CHENG
Life of this patent
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Abstract
The present invention provides a data communication method, where the method includes: receiving, through a first port of a first optical network unit, a first message sent by a first optical line terminal, where the first message is used to instruct the first optical network unit to switch to the second port from the first port; and after the first optical network unit switches to the second port from the first port according to the first message, performing data communication with a second optical line terminal through the second port. It is ensured that switchover time between the OLTs is within 50 ms, and reliability of data communication is further improved.
Claims15
A data communication method in an optical network system, wherein at least one first optical network unit in the optical network system is respectively connected to a first optical line terminal by using a first port, and is connected to a second optical line terminal by using a second port, and the data communication method comprises:
- receiving, through the first port of the first optical network unit, a first message sent by the first optical line terminal, wherein the first message is used to instruct the first optical network unit to switch to the second port from the first port;
- and
- switching, by the first optical network unit, to the second port from the first port according to the first message, and performing data communication with the second optical line terminal through the second port.
An optical network unit, wherein the optical network unit is respectively connected to a first optical line terminal by using a first port, and is connected to a second optical line terminal by using a second port, and the optical network unit comprises:
- a first receiving unit, configured to receive, through the first port of the optical network unit, a first message sent by the first optical line terminal, wherein the first message is used to instruct the optical network unit to switch to the second port from the first port;
- and
- a switchover processing unit, configured to switch the optical network unit to the second port from the first port according to the first message, and perform data communication with the second optical line terminal through the second port.
An optical network system, wherein at least one first optical network unit in the optical network system is respectively connected to a first optical line terminal by using a first port, and is connected to a second optical line terminal by using a second port, and the optical network system comprises:
- the first optical line terminal, configured to send a first message to the first optical network unit, wherein the first message is used to instruct the optical network unit to switch to the second port from the first port;
- the first optical network unit, configured to receive, through the first port of the first optical network unit, the first message sent by the first optical line terminal;
- and switch to the second port from the first port according to the first message, and perform data communication with the second optical line terminal through the second port;
- and
- the second optical line terminal, configured to:
- after the first optical network unit switches to the second port from the first port, perform data communication with the first optical network unit through the second port of the first optical network unit.
Dependencies are inferred from the claim text.