International Business Machines Corporation

Marianne Aubry

Claude Basso

Paolo Scotton

Olen L Stokes

Douglas H Dykeman

B Stephen Currie

William C Souhrada

Fernando Matos

Michael Osbourne

Aram Avetisyan

Minh-Tri Do Khac

A method includes: receiving communications from first and second tenants of a multi-tenant computing environment over first and second dedicated networks, respectively, the communications being transmitted to a first globally unique IP address in first and second dedicated environments, respectively; NATing the first globally unique IP address, to which the communication from the first tenant was transmitted, to a first non-globally unique IP address that is locally unique in the service provider environment; NATing the first globally unique IP address, to which the communication from the second tenant was transmitted, to a second non-globally unique IP address that is locally unique in the service provider environment; providing the communication from the first tenant and the communication from the second tenant access to a shared resource in the service provider environment using the first and second non-globally unique IP addresses, respectively.

Multi-tenant environment with overlapping address space

Address management methods and apparatus are provided for a node serving as peer group leader for a peer group of nodes in one level of the hierarchy of a PNNI hierarchical network, whereby the peer group leader represents the peer group to one or more neighboring nodes in the next level up of the hierarchy. The peer group leader has a memory () for storing peer group topology data (), comprising address data which is supplied to the peer group leader from nodes in the peer group and represents addresses for access by the network, and peer group leader topology data (), comprising address data which is supplied to said neighboring nodes by the peer group leader and represents addresses accessible via the peer group. The address management method comprises: checking whether addresses represented by said address data are accessible via the peer group; notifying said neighboring nodes of changes in the accessibility of addresses so identified; and updating said peer group leader topology data () in accordance with said changes.

Address management in PNNI hierarchical networks

Growing community of inventors

Saint Paul de Vence, France

Marianne Aubry