Global Patent Index - EP 1500237 A1

EP 1500237 A1 20050126 - METHOD FOR MONITORING THE AVAILABILITY OF CONNECTIONS IN MPLS NETWORKS

Title (en)

METHOD FOR MONITORING THE AVAILABILITY OF CONNECTIONS IN MPLS NETWORKS

Title (de)

VERFAHREN ZUR BERWACHUNG DER VERFÜGBARKEIT VON VERBINDUNGEN IN MPLS-NETZEN

Title (fr)

PROCEDE POUR CONTROLER LA DISPONIBILITE DE LIAISONS DANS DES RESEAUX MPLS

Publication

EP 1500237 A1 20050126 (DE)

Application

EP 03727217 A 20030424

Priority

  • DE 0301337 W 20030424
  • DE 10219154 A 20020429

Abstract (en)

[origin: WO03094443A1] The invention relates to a low-effort method for monitoring the availability of connections in MPLS networks, according to which specially configured MPLS-OAM packets (MPLS-OAM-LAV packets) are defined and are periodically inserted into the traffic flow of user data packets at the source (TLN1) of a connection or a partial section of a connection, said specially configured MPLS-OAM packets being distinguishable from other MPLS-OAM packets and the MPLS packets carrying user data by means of a special mark or identifier. The specially configured MPLS-OAM packets are periodically checked for arrival thereof at the acceptor (TLN2) of the connection or the partial section of the connection. The connection (LSP) is declared unavailable if none of said packets have been received within a predefined period of time.

IPC 1-7

H04L 12/56; H04L 12/24

IPC 8 full level

H04L 12/26 (2006.01); H04L 12/723 (2013.01)

CPC (source: EP)

H04L 43/50 (2013.01); H04L 45/50 (2013.01)

Citation (search report)

See references of WO 03094443A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03094443 A1 20031113; DE 10219154 A1 20031120; EP 1500237 A1 20050126; US 2005226236 A1 20051013

DOCDB simple family (application)

DE 0301337 W 20030424; DE 10219154 A 20020429; EP 03727217 A 20030424; US 51305304 A 20041028