MANAGING HOST ROUTES FOR LOCAL COMPUTER NETWORKS WITH A PLURALITY OF FIELD AREA ROUTERS
First Claim
1. A method, comprising:
- advertising, into a global computer network, from a particular field area router (FAR) in a local computer network having a plurality of FARs, a common subnet prefix assigned to the local computer network, wherein each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network;
building a tunnel overlay among the plurality of FARs of the local computer network;
receiving a packet at the particular FAR destined to a particular device in the local computer network; and
in response to the particular FAR not having a host route to the particular device, selecting a specific FAR of the plurality of FARs to forward the packet to on the tunnel overlay based on the specific FAR having the host route to the particular device and forwarding the packet on the tunnel overlay to the selected FAR.
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Accused Products
Abstract
In one embodiment, a particular field area router (FAR), in a local computer network (e.g., a mesh network) having a plurality of FARs, advertises a common subnet prefix assigned to the local computer network into a global computer network. Each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network, and a tunnel overlay is built among the plurality of FARs. Upon receiving a packet at the particular FAR destined to a particular device in the local computer network, and in response to the particular FAR not having a host route to the particular device, it forwards the packet on the tunnel overlay to another of the plurality of FARs of the local computer network.
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Citations
19 Claims
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1. A method, comprising:
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advertising, into a global computer network, from a particular field area router (FAR) in a local computer network having a plurality of FARs, a common subnet prefix assigned to the local computer network, wherein each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network; building a tunnel overlay among the plurality of FARs of the local computer network; receiving a packet at the particular FAR destined to a particular device in the local computer network; and in response to the particular FAR not having a host route to the particular device, selecting a specific FAR of the plurality of FARs to forward the packet to on the tunnel overlay based on the specific FAR having the host route to the particular device and forwarding the packet on the tunnel overlay to the selected FAR. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus, comprising:
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a network interface to communicate in a local computer network having a plurality of field area routers (FARs); a network interface to communicate in a global computer network; a processor coupled to the network interfaces and adapted to execute one or more processes; and a memory configured to store a FAR process executable by the processor, the process when executed operable to; advertise, into the global computer network, a common subnet prefix assigned to the local computer network, wherein each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network; build a tunnel overlay among the plurality of FARs of the local computer network; receive a packet destined to a particular device in the local computer network; and is in response to the particular FAR not having a host route to the particular device, selecting a specific FAR of the plurality of FARs to forward the packet to on the tunnel overlay based on the specific FAR having the host route to the particular device and forwarding the packet on the tunnel overlay to the selected FAR. - View Dependent Claims (13, 14, 15, 16)
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17. A tangible, non-transitory, computer-readable media having software encoded thereon, the software, when executed by a processor on a particular field area router (FAR) in a local computer network having a plurality of FARs, operable to:
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advertise, into a global computer network, a common subnet prefix assigned to the local computer network, wherein each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network; build a tunnel overlay among the plurality of FARs of the local computer network; receive a packet destined to a particular device in the local computer network; and in response to the particular FAR not having a host route to the particular device, selecting a specific FAR of the plurality of FARs to forward the packet to on the tunnel overlay based on the specific FAR having the host route to the particular device and forwarding the packet on the tunnel overlay to the selected FAR. - View Dependent Claims (18, 19)
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Specification