Cisco Technology, Inc.

Sachin G Gorde

Chandrodaya Prasad

Kiritkumar B Joshi

Srinath Gundavelli

Anand K Oswal

Viren K Malaviya

Virendra K Malaviya

Vikas Butaney

Dhiraj D Ballal

Jason G Dachtler

Jason D Dachtler

A local mobility anchor (LMA) connected to a network receives session requests sent by first and second gateways on behalf of a mobile node seeking to establish a mobility session with the network. The LMA selects, based on a gateway selection criterion, either a first or a second gateway as active for actively handling the mobility session and the other gateway as standby. The LMA commands the active gateway to actively handle the mobility session and to configure the mobile node to use the active gateway for the mobility session. The LMA commands the standby gateway to not configure the mobile node and to operate in active standby to handle a failover of the mobility session from the primary gateway. The LMA establishes with the active gateway a first IP tunnel to be used for the mobility session.

Mobile gateway redundancy with active standby

A network device may be configured to provide a gateway between a remote host and a mobile node using multiple interconnection protocols. The network device may include database circuitry configured to query a database for a first or second address of a mobile node using a domain name of the mobile node. The addresses may be associated with different interconnection protocols. The network device may include communication interface circuitry configured to receive a request from a remote host to communicate with the mobile node. The request may include the domain name. The interface circuitry may also be configured to transmit a message indicating the request using the first address, and transmit the second address to the remote host so that the remote host can communicate with the mobile node using the second address. The message may include a command to establish a data bearer through the second address.

Managed access to mobile endpoints

In one implementation, a method for managing access to mobile endpoints leverages the always-on nature of a first internet layer protocol to expand the reach of a second internet layer protocol. A network device receives a request originating from a remote host. The request includes a domain name of a mobile endpoint. The network device queries a database using the domain name for a first address of the mobile endpoint as designated according to the first internet layer protocol. The network device transmits a wake up message to the mobile endpoint using the first address. A data bearer for communication with the second internet layer protocol is established based on the wake up message, and a second address is assigned to the mobile endpoint. The second address is forwarded to the remote host, allowing communication between the remote host and the mobile endpoint.

A method is provided in one example embodiment and includes communicating an access request message associated with a mobile node, receiving an access accept message that includes domain name data associated with the mobile node, and communicating a packet data protocol (PDP) context accept message for a tracking PDP context associated with the mobile node without associating an internet protocol (IP) address to the mobile node. The tracking PDP context identifies that the mobile node is available to receive network data. In more particular embodiments, the access request message includes an International Mobile Subscriber Identity (IMSI) associated with the mobile node, and the domain name data includes a fully qualified domain name. In still other embodiments, the tracking PDP includes a protocol configuration option (PCO) indicating that an IP address is not required for the mobile node.

System and method for providing network initiated mobile access in a network environment

A system for negotiating routable Internet Protocol (IP) addresses is provided. The system includes a communication device that is operable to transmit a request for a routable Internet Protocol (IP) address, and a cellular router in communication with the communication device. The routable IP address may be used to provide communication to the communication device. The cellular router is operable to receive the request for the routable IP address and negotiate an IP subnet. The IP subnet includes a plurality of routable IP addresses, which are allocated to the cellular router. The cellular router is operable to provide at least one of the plurality of routable IP addresses to the communication device.

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San Jose, CA, United States of America

Sachin G Gorde