Predictive roaming between subnets
First Claim
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1. A method comprising:
- selecting a first home agent in a first subnet including a first wireless access point associated with a wireless client;
detecting, by the first wireless access point, a second wireless access point;
determining if the second wireless access point is in a second subnet different from the first subnet;
if it is determined that the second wireless access point is in the second subnet;
sending home agent information to the second wireless access point in the second subnet different from the first subnet associated with the wireless client, the home agent information including an address of the first home agent;
using predictive roaming information, the predictive roaming information including a first address suitable to uniquely identify the wireless client within a network comprising the first subnet and the second subnet and a second address suitable to uniquely identify the wireless client within the first subnet and to associate the wireless client with the first subnet, and the home agent information to establish a tunnel network connection between the first subnet and the second subnet when the wireless client roams from the first wireless access point in the first subnet to the second wireless access point in the second subnet.
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Abstract
A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.
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Citations
17 Claims
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1. A method comprising:
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selecting a first home agent in a first subnet including a first wireless access point associated with a wireless client; detecting, by the first wireless access point, a second wireless access point; determining if the second wireless access point is in a second subnet different from the first subnet; if it is determined that the second wireless access point is in the second subnet; sending home agent information to the second wireless access point in the second subnet different from the first subnet associated with the wireless client, the home agent information including an address of the first home agent; using predictive roaming information, the predictive roaming information including a first address suitable to uniquely identify the wireless client within a network comprising the first subnet and the second subnet and a second address suitable to uniquely identify the wireless client within the first subnet and to associate the wireless client with the first subnet, and the home agent information to establish a tunnel network connection between the first subnet and the second subnet when the wireless client roams from the first wireless access point in the first subnet to the second wireless access point in the second subnet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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wireless access points of a first subnet including a first wireless access point configured to select a first home agent in the first subnet associated with a wireless client; the first wireless access point configured to; detect a second wireless access point; determine if the second wireless access point is in a second subnet different from the first subnet; send home agent information to the second wireless access point in the second subnet different from the first subnet associated with the wireless client, the home agent information including an address of the first home agent, if it is determined that the second wireless access point is in the second subnet; the second wireless access point configured to use predictive roaming information, the predictive roaming information including a first address suitable to uniquely identify the wireless client within a network comprising the first subnet and the second subnet and a second address suitable to uniquely identify the wireless client within the first subnet and to associate the wireless client with the first subnet, and the home agent information to establish a tunnel network connection between the first subnet and the second subnet when the wireless client roams from the first wireless access point in the first subnet to the second wireless access point in the second subnet. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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means for selecting a first home agent in a first subnet including a first wireless access point associated with a wireless client; means for detecting a second wireless access point; means for determining if the second wireless access point is in a second subnet different from the first subnet; means for sending home agent information to the second wireless access point in the second subnet different from the first subnet associated with the wireless client, the home agent information including an address of the first home agent, if it is determined that the second wireless access point is in the second subnet; means for using predictive roaming information, the predictive roaming information including a first address suitable to uniquely identify the wireless client within a network comprising the first subnet and the second subnet and a second address suitable to uniquely identify the wireless client within the first subnet and to associate the wireless client with the first subnet, and the home agent information to establish a tunnel network connection between the first subnet and the second subnet when the wireless client roams from the first wireless access point in the first subnet to the second wireless access point in the second subnet.
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Specification