Address resolution system

H - Electricity – 04 – L

Patent

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Details

H04L 29/02 (2006.01) H04L 12/12 (2006.01) H04L 12/56 (2006.01) H04L 12/66 (2006.01) H04L 29/12 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2213011

In an NHRP (NBMA Next Hop Resolution Protocol) address resolution system for transforming a network layer address to a data link layer address in an NBMA (Non-Broadcast, Multi-Access) network not sharing media, an NHRP processing section provides a function of resolving an address while an ATMARP (Asynchronous Transfer Mode Address Resolution Protocol) processing section provides a function of resolving an address on the basis of the ATMARP. A holding section is selectively accessed by the NHRP processing section or ATMARP processing section for holding address information registered by the NHRP or address information registered by the ATMARP. When the NHRP processing section receives an NHRP resolution request packet requesting for a resolution of the address of a given ATMARP terminal's address, the processing section sends, if the ATMARP terminal and a terminal sent the NHRP resolution request packet do not belong to the same subnetwork, a reply representative of the address information of an interface received the request packet.

Dans un système de résolution d'adresses NHRP (NBMA Next Hop Resolution Protocol) permettant de transformer une adresse de couche réseau en une adresse de couche liaison de données dans un réseau NBMA (Non-Broadcast, Multi-Access) sans partage de supports, une section de traitement NHRP assure la résolution d'une adresse tandis qu'une section de traitement ATMARP (Asynchronous Transfer Mode Address Resolution Protocol) assure la résolution d'une adresse conformément à l'ATMARP. Une section de conservation fait l'objet d'un accès sélectif par la section de traitement NHRP ou la section de traitement ATMARP afin de conserver l'information d'adresse enregistrée par le NHRP ou par l'ATMARP. Lorsque la section de traitement NHRP reçoit un paquet demandant la résolution d'une adresse d'un terminal ATMARP donné, et si le terminal ATMARP et le terminal auquel a été envoyé ledit paquet ne font pas partie du même réseau, la section de traitement envoie une réponse indiquant l'information d'adresse d'une interface qui a reçu ledit paquet.

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