Patent ID: 8463881
Filing Date: 2013-06-11
Classification: G06F,H04L

Abstract:
1. A method comprising: determining, by a computer system in a first domain, that a peer-to-peer connection is to be made between the first domain and a second domain alien to the first domain, wherein the first domain is not yet connected to the second domain; sending, by the computer system, a request to the second domain for a first set of domain numbers, the first set having a size equal to one more than a number N1 of alien domains currently connected to the first domain, the number N1 of alien domains not including the second domain; receiving, by the computer system, the first set of domain numbers from the second domain; associating, by the computer system, a domain number in the first set of domain numbers with a domain number stored in a local list of domain numbers, the local list of domain numbers being specific to the first domain; receiving, by the computer system, a request from the second domain for a second set of domain numbers, the second set having a size equal to one more than a number N2 of alien domains currently connected to the second domain, the number N2 of alien domains not including the first domain; generating, by the computer system, the second set of domain number from a pool of available domain numbers; and sending, by the computer system, the second set of domain numbers to the second domain; wherein each domain number in the first and second sets of domain numbers identifies a Peripheral Component Interconnect Express (PCIe) hierarchy with a single PCIe root element.