Patent · US Active

Multicast-based inference of temporal loss characteristics in packet data networks

US8233402B2 · kind B2 · utility

12Cited by

7References

10Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Nicholas Duffield · Summit, US
Vijay Arya · Bengaluru, IN
Darryl Neil Veitch · Melbourne, AU

Key dates

Filing date	Sep 20, 2007
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Mar 9, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L43/0864
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Disclosed are method and apparatus for characterizing the temporal loss characteristics of a packet data network by multicast-based inference. Multicast probes are transmitted from a source node to a plurality of receiver nodes, which record the arrivals of the multicast probes. From the aggregate data comprising recorded arrivals of the end-to-end paths from the source node to each receiver node, temporal loss characteristics of individual links within the network may be calculated. In a network with a tree topology, the complexity of calculations may be reduced through a process of subtree partitioning.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.