Argela Yazilim Ve Bilisim Teknolojileri San Ve Tic A.s.

Serkant Uluderya

Seyhan Civanlar

Ali Volkan Atli

Bulent Kaytaz

Sinan Tatlicioglu

Ceyda Idilkurt

Okan Tekdas

Tolga Tanriverdi

C Bora Eliacik

Galip Dursun

Alper Aykac

Neva Ozcu

Fatih Cakici

A novel technique is shown for throttling control traffic in a Software Defined Network (SDN) between a controller and network switches when the controller and/or one or more control channels are congested. In this technique, the controller's processing power and the limited control channel bandwidth are more efficiently managed by drastically cutting down the control traffic during times of congestion.

System and method for control traffic reduction between SDN controller and switch

An adaptive network-based approach for reducing congestion on certain select-group of flows within a programmable network wherein switches dynamically adjust the receive window size (rwnd) and/or the ACK pace of other TCP flows by interfering their ACK packets, those flows sharing network resources causing congestion on the select-group of flows. The TCP flow rate is reduced to make more network resources available to the group of select-flows. The system of invention further comprises a centralized controller detecting so called a 'bad queue' causing persistent traffic slow-down due to TCP behavior. The bad queue detection is performed by (i) monitoring switch ports' transmit and receive queues, (ii) calculating minimum packet sojourn times on queues, (iii) determining which flows to slow down to clear detected bad queues, and (iv) sending messages to certain switches to execute changes to a group of ACK packets.

System and method to prevent persistent full switch queues in software defined networks

This invention is an apparatus an methods which integrates users' avatars into IP-based calling and messaging telecommunication services in such a way that avatar can be animated in real-time according to spoken words, anticipated gestures and pre-set and stored emotions. The invention includes an online editor to generate and customize users avatars.

Interactive avatars for telecommunication systems

Growing community of inventors

Istanbul, Turkey

Serkant Uluderya