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1. WO2012065641 - DNS SERVER ARRANGEMENT AND METHOD

Publication Number WO/2012/065641
Publication Date 24.05.2012
International Application No. PCT/EP2010/067680
International Filing Date 17.11.2010
Chapter 2 Demand Filed 03.09.2012
IPC
H04L 29/12 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
12characterised by the data terminal
CPC
G06F 15/167
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
15Digital computers in general
16Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
163Interprocessor communication
167using a common memory, e.g. mailbox
G06F 9/45533
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
44Arrangements for executing specific programs
455Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
45533Hypervisors; Virtual machine monitors
H04L 29/12066
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12047Directories; name-to-address mapping
12056involving standard directories and standard directory access protocols
12066using Domain Name System [DNS]
H04L 29/12132
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12047Directories; name-to-address mapping
12132Mechanisms for table lookup, also between directories; Directory data structures; Synchronization of directories
H04L 29/12811
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12792Details
12811Caching of addresses
H04L 61/1511
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
15Directories; Name-to-address mapping
1505involving standard directories or standard directory access protocols
1511using domain name system [DNS]
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (publ) [SE]/[SE] (AllExceptUS)
  • ARKKO, Jari [FI]/[FI] (UsOnly)
  • GARNEIJ, Fredrik [SE]/[SE] (UsOnly)
  • GOTARE, Christian [SE]/[SE] (UsOnly)
  • KAUPPINEN, Tero [FI]/[FI] (UsOnly)
  • MAHKONEN, Heikki [FI]/[FI] (UsOnly)
  • MELÉN, Jan [FI]/[FI] (UsOnly)
Inventors
  • ARKKO, Jari
  • GARNEIJ, Fredrik
  • GOTARE, Christian
  • KAUPPINEN, Tero
  • MAHKONEN, Heikki
  • MELÉN, Jan
  • KUPARINEN, Martti
Agents
  • BRANN AB
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DNS SERVER ARRANGEMENT AND METHOD
(FR) AGENCEMENT DE SERVEUR DNS ET PROCÉDÉ ASSOCIÉ
Abstract
(EN)
The present invention relates to a Domain Name System, DNS, server (10) and a method for resolving DNS queries from a number of clients (12). The DNS server (10) comprises multiple virtual DNS server instances (13-1, 13-2, 13-3) servicing different clients (12). The DNS server (10) further comprises a shared cache (S1) for caching records which indicate answers to resolved DNS queries. The shared cache (S1) is shared between a set of virtual DNS server instances. The virtual DNS server instances that share the shared cache are able to cache DNS query results in the shared cache as well as resolve a DNS query by retrieving a cached record corresponding to the DNS query from the shared cache. Thus it is possible for a virtual DNS server instance to make use of DNS query results obtained by other virtual DNS server instances.
(FR)
La présente invention porte sur un serveur de système d'adressage par domaine (DNS) (10) et sur un procédé de résolution d'interrogations DNS provenant d'un certain nombre de clients (12). Le serveur DNS (10) comprend de multiples instances de serveur DNS virtuel (13-1, 13-2, 13-3) desservant différents clients (12). Le serveur DNS (10) comprend en outre un cache partagé (S1) pour mettre en cache des enregistrements qui indiquent des réponses à des interrogations DNS résolues. Le cache partagé (S1) est partagé entre un ensemble d'instances de serveur DNS virtuel. Les instances de serveur DNS virtuel qui partagent le cache partagé sont aptes à mettre en cache des résultats d'interrogation DNS dans le cache partagé, ainsi qu'à résoudre une interrogation DNS par récupération d'un enregistrement mis en cache correspondant à l'interrogation DNS dans le cache partagé. Il est ainsi possible pour une instance de serveur DNS virtuel d'utiliser des résultats d'interrogation DNS obtenus par d'autres instances de serveur DNS virtuel.
Also published as
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