Wireless mesh network including resilient backhaul links and WLAN traffic local switching
First Claim
1. A method comprising:
- at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets, each IP subnet associated with a corresponding IP subnet identifier;
establishing over a first path in the wireless mesh network connectivity to a first controller configured to provide central control of the wireless mesh network and route data traffic associated with each AP of the spanning tree to and from a wired network;
receiving from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs;
obtaining a first IP address associated with the first IP subnet;
roaming from the first parent AP to a second parent AP;
receiving from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs;
determining if the first parent AP and the second parent AP are both part of the same IP subnet; and
if it is determined that the first parent AP and the second parent AP are not part of the same IP subnet, which indicates that the mesh AP has roamed from the first IP subnet to the second IP subnet;
obtaining a second IP address for use in the second IP subnet;
dropping connectivity to the first controller; and
establishing connectivity over a second path in the wireless mesh network to a second controller that is the same as the first controller.
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Accused Products
Abstract
A method is performed at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets. The method includes receiving from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs. The method also includes obtaining a first IP address associated with the first IP subnet, roaming from the first to a second parent AP, receiving from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs, determining if the first and second parent APs are both part of the same IP subnet, and determining whether to maintain connectivity with a current controller or establish connectivity to a new controller based on results of the determining.
15 Citations
20 Claims
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1. A method comprising:
at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets, each IP subnet associated with a corresponding IP subnet identifier; establishing over a first path in the wireless mesh network connectivity to a first controller configured to provide central control of the wireless mesh network and route data traffic associated with each AP of the spanning tree to and from a wired network; receiving from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs; obtaining a first IP address associated with the first IP subnet; roaming from the first parent AP to a second parent AP; receiving from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs; determining if the first parent AP and the second parent AP are both part of the same IP subnet; and if it is determined that the first parent AP and the second parent AP are not part of the same IP subnet, which indicates that the mesh AP has roamed from the first IP subnet to the second IP subnet; obtaining a second IP address for use in the second IP subnet; dropping connectivity to the first controller; and establishing connectivity over a second path in the wireless mesh network to a second controller that is the same as the first controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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one or more radios in a mesh access point (AP) of a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets, each IP subnet associated with a corresponding IP subnet identifier; a memory; and a processor coupled to the one or more radios and the memory, the processor configured to; establish over a first path in the wireless mesh network connectivity to a first controller configured to provide central control of the wireless mesh network and route data traffic associated with each AP of the spanning tree to and from a wired network; receive from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs; obtain a first IP address associated with the first IP subnet; roam from the first parent AP to a second parent AP; receive from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs; determine if the first parent AP and the second parent AP are both part of the same IP subnet; and if it is determined that the first parent AP and the second parent AP are not part of the same IP subnet, which indicates that the mesh AP has roamed from the first IP subnet to the second IP subnet; obtain a second IP address for use in the second IP subnet; drop connectivity to the first controller; and establish connectivity over a second path in the wireless mesh network to a second controller that is the same as the first controller. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A non-transitory processor readable medium storing instructions that, when executed by a processor, cause the processor to, at a mesh access point (MAP) in a wireless mesh network including access points (APs) of a spanning tree being divided among multiple Internet Protocol (IP) subnets, each IP subnet associated with a corresponding IP subnet identifier:
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establish over a first path in the wireless mesh network connectivity to a first controller configured to provide central control of the wireless mesh network and route data traffic associated with each AP of the spanning network to and from a wired network; receive from a first parent AP to which the MAP is a child a first IP subnet identifier indicating the first IP subnet to which the first parent AP belongs; obtain a first IP address associated with the first IP subnet; roam from the first parent AP to a second parent AP; receive from the second parent AP a second IP subnet identifier indicating a second IP subnet to which the second parent AP belongs; determine if the first parent AP and the second parent AP are both part of the same IP subnet; and if it is determined that the first parent AP and the second parent AP are not part of the same IP subnet, which indicates that the mesh AP has roamed from the first IP subnet to the second IP subnet; obtain a second IP address for use in the second IP subnet; drop connectivity to the first controller; and establish connectivity over a second path in the wireless mesh network to a second controller that is the same as the first controller. - View Dependent Claims (18, 19, 20)
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Specification