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1. WO2020061168 - FAST REROUTE FOR CONNECTIONS OVER OUTBOUND PATHS

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Publication Number WO/2020/061168
Publication Date 26.03.2020
International Application No. PCT/US2019/051687
International Filing Date 18.09.2019
IPC
H04L 12/911 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
911Network admission control and resource allocation, e.g. bandwidth allocation or in-call renegotiation
H04L 12/751 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
751Topology update or discovery
H04L 25/52 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
38Synchronous or start-stop systems, e.g. for Baudot code
52Repeater circuits; Relay circuits
CPC
H04L 43/0823
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
43Arrangements for monitoring or testing packet switching networks
08Monitoring based on specific metrics
0823Errors
H04L 45/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
22Alternate routing
H04L 45/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
24Multipath
H04L 45/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
28Route fault recovery
H04L 45/42
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
42Centralized routing
H04L 45/7453
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
74Address processing for routing
745Address table lookup or address filtering
7453using hashing
Applicants
  • FASTLY, INC. [US]/[US]
Inventors
  • TAVEIRA, Joao
  • BUYTENHEK, Lennert
  • SAINO, Lorenzo
  • LANDA, Raul
Agents
  • ROCHE, Stephen, S.
  • ARMENT, Brian, L.
  • ARMENT, Keith, M.
  • BOVITZ, David, J.
  • COLLINS, Eric, M.
  • GEHMAN, Leslie, P.
  • RAUCH, Melanie, I.
  • SETTER, Michael, J.
Priority Data
62/732,66718.09.2018US
62/767,32814.11.2018US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FAST REROUTE FOR CONNECTIONS OVER OUTBOUND PATHS
(FR) REROUTAGE RAPIDE POUR CONNEXIONS SUR DES TRAJETS SORTANTS
front page image
Abstract
(EN) A server detects a failure of an outbound path based on at least a measure of forward progress made on a connection between the server and an end point. In response to the failure, the server generates a hash value based at least on an identifying value of the connection and a failure counter associated with the measure of forward progress made on the connection. The server then selects a next outbound path for the packet flow based on at least the hash value generated in response to the failure. The server also sends the packet flow over the next outbound path to the end point.
(FR) La présente invention concerne un serveur qui détecte une défaillance d'un trajet sortant sur la base d'au moins une mesure de progression vers l'avant effectuée sur une connexion entre le serveur et un point d'extrémité. En réponse à la défaillance, le serveur génère une valeur de hachage sur la base au moins d'une valeur d'identification de la connexion et d'un compteur de défaillance associé à la mesure de progression vers l'avant effectuée sur la connexion. Le serveur sélectionne ensuite un chemin sortant suivant destiné au flux de paquets sur la base d'au moins la valeur de hachage générée en réponse à la défaillance. Le serveur envoie également le flux de paquets sur le trajet sortant suivant jusqu'au point d'extrémité.
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