Optical Transport Network Stuffing Bytes for Bandwidth Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In optical network systems, bandwidth in containers is often wasted when only one user is assigned to a container, even if the bandwidth is underutilized, as no other user can access the unused capacity, leading to inefficient use of resources.
Innovation Solution
The implementation of stuffing bytes in optical transport network frames allows multiple users to share a container by identifying the origin of frames and channels, enabling asynchronous mapping and efficient use of bandwidth through channel identification, payload type, and error correction bits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single user is assigned to a container, then the user has dedicated bandwidth access, but the bandwidth is wasted when underutilized as no other user can access the unused capacity
Solution Approach 1:
The container is designed to serve multiple users simultaneously by incorporating channel identification bytes that enable the receiving end to distinguish and separate frames from different users. This multi-functionality allows the same bandwidth resource to be shared among multiple users while maintaining reliable dedicated access for each user through logical separation.
2Productivity
If bandwidth is allocated to multiple users in a container, then bandwidth utilization improves, but the complexity of identifying and separating user channels increases
Solution Approach 1:
Channel identification bytes are introduced as intermediary elements that facilitate the separation of multiple user channels within a shared container. These identification bytes act as mediators that enable the receiving end to efficiently distinguish and route frames to the appropriate users without requiring complex processing, thus improving bandwidth utilization while keeping the system manageable.
3Adaptability or versatility
If stuffing bytes are added to identify multiple users, then bandwidth sharing is enabled, but the frame structure becomes more complex
Solution Approach 1:
The frame structure is segmented by incorporating dedicated channel identification bytes within the stuffing byte positions. This segmentation allows each user's data to be clearly demarcated and identified within the shared container, enabling bandwidth sharing while maintaining a structured and organized frame format that is not excessively complex.
Data Source
AI summary
Methods and apparatus for allowing containers in an optical transport network to be shared between users are disclosed. According to one aspect of the present invention, a first network element that is a part of an optical transport network includes a frame generator and an output arrangement. The frame generator creates a frame with a fixed stuff area that includes a first set of bits that provide channel identification information, a second set of bits that provide justification information, and a third set of bits that indicate either or both payload type information and client signal fail information. The output arrangement places the frame within a container for transport through the optical transport network. The bandwidth of the container is arranged to be utilized by a plurality of network elements including the first network element.