Dynamic discovery of ISO layer-2 topology
First Claim
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1. A method of determining a layer-2 topology of an IT infrastructure comprising layer-2 interconnect devices having ports, the method comprising:
- obtaining a list of layer-2 interconnect devices and end devices available in the IT infrastructure,determining uplink and non-uplink ports of the layer-2 interconnect devices, wherein the uplink and non-uplink ports are determined by information stored in forward tables of the layer-2 interconnect devices, wherein the uplink ports of the layer-2 interconnect devices are the ports via which a root device is reachable and the non-uplink ports are all other ports,assigning all the, or a subset of the, layer-2 interconnect devices to one initial group, anditeratively refining the initial group by selecting a layer-2 interconnect device of the initial group and assigning all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups.
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Abstract
A method is provided of determining a layer-2 topology of an IT infrastructure which includes layer-2 interconnect devices having ports. A list of layer-2 interconnect devices available in the IT infrastructure is obtained. Uplink and non-uplink ports of layer-2 interconnect devices are determined. All the, or a subset of the, layer-2 interconnect devices are assigned to one initial group. The initial group is iteratively refined by selecting a layer-2 interconnect device and assigning all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups.
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Citations
9 Claims
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1. A method of determining a layer-2 topology of an IT infrastructure comprising layer-2 interconnect devices having ports, the method comprising:
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obtaining a list of layer-2 interconnect devices and end devices available in the IT infrastructure, determining uplink and non-uplink ports of the layer-2 interconnect devices, wherein the uplink and non-uplink ports are determined by information stored in forward tables of the layer-2 interconnect devices, wherein the uplink ports of the layer-2 interconnect devices are the ports via which a root device is reachable and the non-uplink ports are all other ports, assigning all the, or a subset of the, layer-2 interconnect devices to one initial group, and iteratively refining the initial group by selecting a layer-2 interconnect device of the initial group and assigning all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer system for determining a layer-2 topology of an IT infrastructure comprising layer-2 interconnect devices having ports, the computer system being programmed to:
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obtain a list of layer-2 interconnect devices and end devices available in the IT infrastructure, determine uplink and non-uplink ports of the layer-2 interconnect devices and end devices, wherein the uplink and downlink ports are determined by information stored in forward tables of the layer-2 interconnect devices, wherein the uplink ports of the layer-2 interconnect devices are the ports via which a root device is reachable and the non-uplink ports are all other ports, assign all the, or a subset of the, layer-2 interconnect devices to one initial group, and iteratively refine the initial group by selecting a layer-2 interconnect device of the initial group and assign all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups.
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9. A computer-readable medium having stored thereon, computer-executable instructions that, if executed by a machine, cause the machine to perform a method comprising:
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obtaining a list of layer-2 interconnect devices and end devices available in the IT infrastructure, determining uplink and non-uplink ports of the layer-2 interconnect devices, wherein the uplink and downlink ports are determined by information stored in forward tables of the layer-2 interconnect devices, wherein the uplink ports of the layer-2 interconnect devices are the ports via which a root device is reachable and the non-uplink ports are all other ports, assigning all the, or a subset of the, layer-2 interconnect devices to one initial group, and iteratively refining the initial group by selecting a layer-2 interconnect device of the initial group and assigning all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups.
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Specification