Deutschetelekom Ag

Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Anja Feldmann

Georgios Smaragdakis

Srinivasan Seetharaman

Ingmar Poese

Andreas Wundsam

Marco Canini

Benjamin Frank

Steve Uhlig

Said Jawad Saidi

Damien Foucard

Stefan Schmid

Daniel Levin

Method and system for capturing summaries of data flows in an electronic, packet-switched communication network, the method comprising: receiving, from a node of the communication network, packet flow data; obtaining a subset of the packet flow parameters (IP src, IP dst, port src, port dst, protocol), based on the packet flow data; obtaining a packet flow statistic, based on the packet flow data; updating a collection of stored packet flow summaries, based on a subset of the packet flow parameters and the packet flow statistic. The stored packet flow summaries are arranged as nodes in a tree data structure.

Distributed and timely network flow summarization at scale

A method and system of analyzing a network to identify a network defect allows user selection of traffic subset to be recorded. After recording the selected traffic subset of the network traffic during network operation, the recorded traffic is then replayed at least in part to the network to replicate, and thus assist in identifying, the network defect.

Virtualization and replay-based system for network debugging

A method for enabling collaboration between an internet service provider (ISP) and another entity includes: gathering a domain name system (DNS) query; evaluating the DNS query wherein the evaluating comprises collecting candidate hosts suitable for delivering content in accordance with the DNS query; ranking the candidate hosts collected by the ISP; providing a first list of the ISP-ranked candidate hosts; forwarding the DNS query to the another entity; evaluating the DNS query wherein the evaluating comprises collecting candidate hosts suitable for delivering content in accordance with the DNS query; ranking the candidate hosts collected by the another entity; providing a second list of the another entity-ranked candidate hosts; matching the first list and the second list; and providing a matched list of ranked candidate hosts. The another entity is a content distribution system (CDN) or another ISP.

Collaboration between internet service providers and content distribution systems

Growing community of inventors

Berlin, Germany

Anja Feldmann