Ethernet-OTN Transmitter Failure Notification via Intermediary
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Solution Overview
Problem
In networks with interconnected Ethernets via OTN, devices struggle to quickly detect failures in opposing side Ethernets due to the lack of agreement on failure information exchange between Ethernets and OTN.
Innovation Solution
A transmitter system is introduced that relays communication data between Ethernets and OTN, generating and transmitting failure information through the OTN to quickly notify connected devices of communication failures, allowing for rapid detection and action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If failure information exchange protocols are implemented between Ethernets and OTN, then failure detection speed is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism where the transmitter embedded in the network device acts as a mediator between Ethernet and OTN networks. It generates failure information based on Ethernet failure detection and transmits this information through the OTN network to the other side, enabling cross-network failure notification without requiring complex bidirectional protocols between different network types.
Solution Approach 2:
The transmitter performs self-service by autonomously generating failure information when it detects a failure in its connected Ethernet network. It independently creates the failure information packet, determines the appropriate transmission path through OTN, and sends the notification without requiring external control or complex coordination with other network components.
2Reliability
If frequent failure confirmation frames are transmitted, then failure detection reliability is improved, but communication traffic increases
Solution Approach 1:
Instead of continuous or frequent periodic transmission of failure confirmation frames, the patent implements event-driven transmission. Failure information is transmitted only when actual failure conditions are detected, converting from periodic action to conditional action, thereby maintaining detection reliability while minimizing unnecessary traffic.
Solution Approach 2:
The patent extracts the essential failure notification function from the general communication traffic. By separating failure information transmission from regular data communication and using dedicated failure information packets with specific identifiers, the system achieves reliable failure detection without burdening the communication network with excessive traffic.
Data Source
AI summary
A transmitter used in a transmission system in which a first network is connected, via a second network, to a third network, the transmitter being arranged between the first network and the second network, the transmitter includes: a generator configured to specify an identifier of data area in which communication data affected by a failure occurred in the first network are stored, in a frame transmitted from the second network, and to generate failure information associated with the identifier specified; and a transmitter configured to transmit the failure information generated by the generator, via the second network, to another transmitter arranged between the second network and the third network.