Predictive and nomadic roaming of wireless clients across different network subnets
First Claim
1. A method comprising:
- receiving home agent information at a first wireless network access point in a first network subnet from a second wireless network access point in a second network subnet different from the first network subnet;
forwarding the home agent information to a first home agent in the first network subnet;
receiving predictive roaming information for a wireless client indicating that a home network subnet for the wireless client is the second network subnet;
detecting that the wireless client is wirelessly connected at the first wireless network access point;
determining, using the predictive roaming information, that the home network subnet of the wireless client is the second network subnet;
determining, using the home agent information, an identification of a second home agent that is a home agent of the second network subnet;
establishing a network tunnel between the first wireless network access point and the second home agent for managing wireless network access of the wireless client through the first wireless network access point.
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Accused Products
Abstract
Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.
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Citations
18 Claims
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1. A method comprising:
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receiving home agent information at a first wireless network access point in a first network subnet from a second wireless network access point in a second network subnet different from the first network subnet; forwarding the home agent information to a first home agent in the first network subnet; receiving predictive roaming information for a wireless client indicating that a home network subnet for the wireless client is the second network subnet; detecting that the wireless client is wirelessly connected at the first wireless network access point; determining, using the predictive roaming information, that the home network subnet of the wireless client is the second network subnet; determining, using the home agent information, an identification of a second home agent that is a home agent of the second network subnet; establishing a network tunnel between the first wireless network access point and the second home agent for managing wireless network access of the wireless client through the first wireless network access point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a first home agent in a first network subset for managing access points in the first network subset; a first wireless network access point in the first network subnet and configured to; receive home agent information from a second wireless network access point in a second network subnet different from the first network subnet; forward the home agent information to the first home agent in the first network subnet; receive predictive roaming information for a wireless client indicating that a home network subnet for the wireless client is the second network subnet; detect that the wireless client is wirelessly connected at the first wireless network access point; determine, using the predictive roaming information, that the home network subnet of the wireless client is the second network subnet; determine, using the home agent information, an identification of a second home agent that is a home agent of the second network subnet; establish a network tunnel between the first wireless network access point and the second home agent for managing wireless network access of the wireless client through the first wireless network access point. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification