SECURE NETWORK IDENTITY ALLOCATION
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Abstract
A computer system is connectable to a network. The computer system includes a plurality of processing units, each of the processing units being provided with a respective network identity for communication with the network. At least one service processor is operable to allocate network identities to the processing units. A switch is provided for interconnecting the processing units to the network. The switch is operable to maintain a record of the network identities allocated to the processing units by the service processor and filters network access by each processing unit such that network access is blocked where a processing unit identity does not correspond to that held by the switch. By maintaining a record of the network identities allocated to the processing units by the service processor in the switch and filtering network access, access by a processing unit that has been changed or where its network identity has otherwise changed, can be prevented, maintaining the integrity of the network.
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Citations
52 Claims
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1-28. -28. (canceled)
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29. A computer system, comprising:
a chassis, wherein the chassis includes;
a midplane connector configured to receive a plurality of general-purpose processing units, each of said processing units having a respective network identity for communication via a network coupled to said computer system;
at least one service processor configured to allocate network identities to the processing units; and
at least one switch connected to said midplane connector, wherein said at least one switch is configured to maintain a record of network identities allocated to each of the processing units, and wherein said at least one switch is configured to filter network access by each of the processing units such that access to the network is blocked when the network identity of the processing unit does not correspond to the network identity maintained by the at least one switch for that processing unit;
wherein the midplane connector and the at least one switch are configured to connect each of said processing units to the network. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A network identity allocation unit, comprising:
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a service processor configured to allocate network identities to a plurality of general-purpose processing units; and
a switch configured to interconnect the processing units to a network, wherein the switch is configured to maintain a record of the network identities allocated to the processing units by the service processor, and wherein the switch is configured to filter access to the network by each of the processing units such that access to the network is blocked when the network identity of the processing unit does not correspond to the network identity maintained by the switch for that processing unit;
wherein said network identity allocation unit is configured to be hot swappable within a computer system that includes the processing units. - View Dependent Claims (41, 42, 43, 44)
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45. A computer system comprising:
a network identity allocation unit, including;
a service processor configured to allocate network identities to a plurality of general-purpose processing units; and
a switch configured to interconnect the processing units to a network, wherein the switch is configured to maintain a record of the network identities allocated to the processing units by the service processor, and wherein the switch is configured to filter access to the network by each of the processing units such that access to the network is blocked when the network identity of the processing unit does not correspond to the network identity maintained by the switch for that processing unit;
wherein said network identity allocation unit is configured to be hot swappable within a computer system that includes the processing units. - View Dependent Claims (46)
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47. A computer system comprising:
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one or more general-purpose processing units, wherein each of said processing units has a respective network identity for communication via a network coupled to said computer system;
a midplane connector coupled to the processing units; and
one or more network identity allocation units configured to connect to said midplane connector, each of said one or more network identity allocation units including;
a service processor configured to allocate network identities to at least one of the processing units; and
a switch configured to interconnect the processing units to a network, wherein the switch is configured to maintain a record of the network identities allocated to the processing units by the service processor, and wherein the switch is configured to filter access to the network by each of the processing units such that access to the network is blocked when the network identity of the processing unit does not correspond to the network identity maintained by the switch for that processing unit. - View Dependent Claims (48, 49, 50, 51, 52)
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Specification