Nanning Fugui Precision Industrial Co., Ltd.

Hon Hai Precision Industry Co., Ltd.

Shih-Neng Lin

Kuan-Hung Lin

Bo-Run Shao

Chi-Feng Lee

Chia-Wei Yuan

An anti-replay processing method. The method is utilized in a service function path (SFP) to monitor packet count in the SFP to identify replay attack event, and recognizes a segment of the SFP where the replay attack event occurs as an insecure path. The method further initiates a secure path bypassing the insecure path, labels normal SFC packets with an asserted secure flag, and blocks replayed packets without the asserted secure flag at the exit stage of the secure path.

Anti-replay processing method and device utilizing the same

In a service function chaining (SFC) system, which comprises an SFC module and a software defined network (SDN) controller, the SDN controller generates a trace packet. The trace packet is classified by the SFC module, the SDN controller comprises a trace managing module, and the trace managing module determines whether equal cost multipath (ECMP) arrangement exists according to the classified trace packet. The trace managing module creates duplicate trace packet flow but keeps only one trace packet at next link in the chaining when that the ECMP arrangement is determined to exist in one SFF. Trace managing module creates normal and dropped trace packet flows and keeps only one trace packet at next link when existence of ECMP in different service function forwarders is determined. Thus, a client can identify failed trace through the trace packet upon trace failure. An SDN controller and trace tracking method are also provided.

Software defined network controller, service function chaining system and trace tracking method

A transmission path optimization method for a Multipath Transmission Control Protocol (MPTCP) applied in a software-defined networking controller located in a network topology. The method is based on detected MPTCP information, the SDN controller retrieves and selects one or more optimal routing paths for allocating to sub-flows of the MPTCP connection. The one or more routing paths are obtained from a first disjoint-path-set with highest compatibility.

Transmission path optimization method and software-defined networking controller using the method

A network service method based Software Defined Networking (SDN) assigns forwarding devices according to network addresses and identification of a client and provides the client with an optimum route according to user requirements and current network states. A continuous monitoring process is continuously performed for route optimization based on network states, topology variations, and user feedbacks.

Network service method and system based on software defined networking

A live video matching system provides a matching service between a video demander and a video provider. An orchestration module of the system dynamically adjusts live services provided by SDN edge devices according to network available resources. An SDN edge device of the system dynamically converts and integrates multiple video streams to generate a virtual channel based on results of matching within multiple requests for videos and provides live video channels for interested users.

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Taipei, Taiwan

Shih-Neng Lin