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
Application
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
IPC 8 full level
H04L 12/26 (2006.01); H04L 12/723 (2013.01); H04L 45/50 (2022.01); H04L 12/56 (2006.01)
CPC (source: EP US)
H04L 43/50 (2013.01 - EP US); H04L 45/50 (2013.01 - EP US)
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