Performance study of token-passing protocol for traffic multiplicity in optical networks

2003 ◽  
Author(s):  
S. Selvakennedy ◽  
A.K. Ramani
Keyword(s):  
Optical Networks ◽  
Performance Study ◽  
Token Passing

Performance study on a new reservation dual‐bus token passing protocol

1989 ◽  
Vol 12 (3) ◽  
pp. 353-360
Author(s):  
Jean‐Lien C. Wu ◽  
Jingshown Wu ◽  
Tien‐Yu Huang
Keyword(s):  
Performance Study ◽  
Token Passing

scholarly journals Sub-Tree-Based Approach for Reconfiguration of Light-Tree Pair without Flow Interruption in Sparse Wavelength Converter Network

Information ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 211
Author(s):  
Amanvon Ferdinand Atta ◽  
Joël Christian Adépo ◽  
Bernard Cousin ◽  
Souleymane Oumtanaga
Keyword(s):  
Optical Flow ◽  
Optical Networks ◽  
Network Performance ◽  
Wavelength Conversion ◽  
Performance Study ◽  
Wavelength Converter ◽  
Network Nodes ◽  
Flow Interruption ◽  
Tree Pair ◽  
Flow Transfer

Network reconfiguration is an important mechanism for network operators to optimize network performance and optical flow transfer. It concerns unicast and multicast connections. Multicast connections are required to meet the bandwidth requirements of multicast applications, such as Internet Protocol-based TeleVision (IPTV), distance learning, and telemedicine. In optical networks, a multicast connection is made possible by the creation of an optical tree-shaped path called a light-tree. The problem of light-tree pair reconfiguration is addressed in this study. Given an initial light-tree used to transfer an optical flow and a final light-tree that is computed by the network operator to optimize network performance, the goal is to migrate the optical flow from the initial light-tree to the final light-tree without flow interruption. Flow interruption is not desirable for network operators because it forces them to pay financial penalties to their customers. To solve this problem, existing methods use a branch approach that is inefficient if some network nodes do not have wavelength conversion capability. Therefore, we proposed in this study a sub-tree-based method. This approach selects and configures sub-tree pairs from the light-tree pair (initial light-tree, final light-tree) to be reconfigured. Then, we produce a sequence of configurations. The performance study confirms that our method is efficient in solving the problem of light-tree pair reconfiguration because our method does not cause flow interruption.

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