Local device identifiers in a storage network

A method comprising:

• receiving, by a controller of a storage network, a packet sent from a source device to a destination device, wherein the packet includes a local identifier of the source device, a global identifier of the source device, a local identifier of the destination device, and a global identifier of the destination device;
• reading, by the controller, the local identifier of the source device at a first offset in the packet, wherein the global identifier of the source device is located at a second offset that is larger than the first offset;
• reading, by the controller, the local identifier of the destination device at a third offset in the packet, wherein the global identifier of the destination device is located at a fourth offset that is larger than the third offset;
• determining, by the controller, whether a combination of the local identifiers of the source and destination devices matches a predefined zone rule;
• and
• in response to a determination that the combination of the local identifiers of the source and destination devices matches the predefined zone rule, causing, by the controller, a delivery of the packet to the destination device.

A non-transitory machine-readable medium storing instructions that upon execution cause a controller to:

• receive a packet sent from a source device to a destination device in a storage network, wherein the packet includes a local identifier of the source device, a global identifier of the source device, a local identifier of the destination device, and a global identifier of the destination device;
• read the local identifier of the source device at a first offset in the packet, wherein the global identifier of the source device is located at a second offset that is larger than the first offset;
• read the local identifier of the destination device at a third offset in the packet, wherein the global identifier of the destination device is located at a fourth offset that is larger than the third offset;
• and
• in response to a determination that a combination of the local identifiers for the source and destination devices matches a predefined zone rule, cause a delivery of the packet to the destination device.