OSPF-NSR-Synchronisationsreduktion

EP2575304 Art B1 12. November 2014

Anmelder: Telefonaktiebolaget LM Ericsson (publ), Telefonaktiebolaget L M Ericsson (publ), Telefonaktiebolaget L M Ericsson (PUBL) 🇸🇪

Details

Veröffentlichungs-Nr.: EP2575304
Aktenzeichen: EP12184029
Anmeldetag: 12. September 2012
Veröffentlichung: 12. November 2014
Erteilung: 12. November 2014
Rechtsraum: EP
IPC: H04L12/707H04L12/703H04L12/775H04L12/773

Offizieller Volltext

Abstract

A network element is configured to reduce the synchronization costs for implementing Open Shortest Path First (OSPF) Nonstop routing (NSR). The reduced synchronization costs are achieved by reducing the number of acknowledgement messages that are needed to be sent though reliable inter-process communication (IPC) between the active OSPF instance and the standby OSPF instance. The number of acknowledgement messages is reduced by tracking the link state advertisements (LSAs) that have been sent by the active OSPF instance to the standby OSPF instance and by the standby OSPF replying with an acknowledgement of only the last LSA in a group of LSAs received from the active OSPF instance, where the group can have a variety of boundaries such as a group of LSAs in an IPC message. This avoids having a significant number of acknowledgement messages sent through the IPC.

Anmelder

Firmen: Telefonaktiebolaget LM Ericsson (publ)
Telefonaktiebolaget L M Ericsson (publ)
Telefonaktiebolaget L M Ericsson (PUBL)
Land: 🇸🇪 Schweden

🇸🇪 Ericsson

Schwedischer Telekommunikationskonzern mit Sitz in Stockholm. Ericsson entwickelt Netzwerkinfrastruktur, Mobilfunktechnologien (u.a. 5G) und Kommunikationslösungen für Netzbetreiber und Unternehmen weltweit.

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