Global patent index - EP 1018240 A1

EP 1018240 A1 2000-07-12 - DYNAMIC OPTIMIZATION IN RELIABLE MULTICAST PROTOCOL

Title (en)

DYNAMIC OPTIMIZATION IN RELIABLE MULTICAST PROTOCOL

Title (de)

DYNAMISCHE OPTIMIERUNG IN BETRIEBSSICHEREM MEHRFACHSENDE-PROTOKOLL

Title (fr)

OPTIMISATION DYNAMIQUE DANS UN PROTOCOLE DE MULTIDIFFUSION FIABLE

Publication

EP 1018240 A1 (EN)

Application

EP 99933594 A

Priority

  • US 9914616 W
  • US 9133098 P
  • US 33666999 A
  • US 33666099 A

Abstract (en)

[origin: WO0001115A1] The number of repair head stations within a given TTL distance of each other is minimized in a dense topological arrangement of receiver stations. Receiver stations located close together in a computer network dynamically form a multicast repair tree by a plurality of receiver stations choosing a repair head station from among the closely located receiver stations. Each receiver station notices other repair head stations. Each receiver station notices the repair head stations by reading all of the HELLO messages and the HA messages arriving at that station after the messages are transmitted by repair head stations. Each receiver station then determines the number of member stations served by each head station by reading the TOTAL MEMBER COUNT field of the Hello Message or the DIRECT MEMBER COUNT field of the HA Message. The receiver station then reaffiliates with the repair head station having the largest number of member stations, and which is also within a given TTL distance of the receiver station. Alternatively, the affiliation change is initiated by a repair head station. In both cases, the number of repair head stations is reduced as repair groups of different repair head stations are consolidated.

IPC 1-7 (main, further and additional classification)

H04L 12/18

IPC 8 full level (invention and additional information)

H04L 12/18 (2006.01)

CPC (invention and additional information)

H04L 12/185 (2013.01); H04L 12/1863 (2013.01)

Citation (search report)

See references of WO 0001115A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0001115 A1 20000106; WO 0001115 A8 20000525; EP 1018240 A1 20000712

INPADOC legal status

2002-08-21 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020702

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000508

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT