Failover in a host concurrently supporting multiple virtual...

Details Failover in a host concurrently supporting multiple virtual... Failover in a host concurrently supporting multiple virtual...

H - Electricity

04

L

H04L 29/12 (2006.01) H04L 29/14 (2006.01)

Patent

CA 2699314

A host enables any adapter of multiple adapters of the host to concurrently support any VIPA of the multiple VIPAs assigned to the host. Responsive to a failure of at least one particular adapter from among the multiple adapters, the host triggers the remaining, functioning adapters to broadcast a separate hardware address update for each VIPA over the network, such that for a failover in the host supporting the multiple VIPAs the host directs at least one other host accessible via the network to address any new packets for the multiple VIPAs to one of the separate hardware addresses of one of the remaining adapters.

Selon l'invention, un hôte permet à un des adaptateurs d'une pluralité d'adaptateurs de l'hôte de supporter concurremment n'importe quelle adresse IP virtuelle (VIPA) parmi les VIPA attribuées à l'hôte. En réponse à une défaillance d'au moins un des adaptateurs de la pluralité d'adaptateurs, l'hôte fait démarrer les adaptateurs restants qui diffusent sur le réseau une mise à jour d'adresse matérielle séparée pour chaque VIPA, de sorte que, pour un basculement dans l'hôte supportant les multiples VIPA, l'hôte ordonne à au moins un autre hôte accessible par le réseau d'adresser tout nouveau paquet pour les multiples VIPA à l'une des adresses matérielles séparées de l'un des adaptateurs restants.

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