International Business Machines Corporation

Lun-Pin Yuan

Cheng-Ta Lee

Ronald B Williams

'Multi-tenant awareness' is added to a set of one or more packet processing devices in a Software Defined Network (SDN) having a controller. For each of one or more tenants, information in a table associates network protocol address attributes with an Internet Protocol (IP) address unique to the tenant. The table is associated with a multiple-layer translation layer being managed by the SDN controller. As a data packet traverses the translation layer, network protocol address attributes are translated according to values in the table to enable logical routing of the packet (to a given PPD. This translation occurs dynamically (or 'on-the-fly') as packets are &#x201c;on route&#x201d; to their destination. By implementing a multi-layer network address translation (NAT), one layer may be used to translate network protocol address source attributes, while a second layer may be used to translate network protocol address destination attributes.

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Taoyuan, Taiwan

Lun-Pin Yuan