Time Warner Cable Enterprises LLC

Time Warner Cable Inc.

Clayton O'Neill

Andrew Charles Danforth

Tushar Nakhre

Christopher G Turner

A topology map engine obtains, from a dynamic host control protocol relay device, a relayed request, of a client, for a dynamic host control protocol lease. The relayed request has at least one given IP address of the dynamic host control protocol relay device inserted therein. A search is made in a database for that IP address. If not found, dynamic host control protocol relay device information is obtained. This information includes: an identifier of the dynamic host control protocol relay device; and at least one network interface of the dynamic host control protocol relay device and any internet protocol addresses assigned to same. This information is obtained at the topology map engine and stored in the database.

System and method for automatically learning and maintaining IP address allocation topology

A system and method for assigning a service flow classifier to a device. A MAC address of a device is extracted from a DHCP discover message. A DHCP server constructs a key from the device MAC address and an IP address assigned by the DHCP server. The key identifies a record of attributes of the device. A configuration server uses the key to access the attribute record and to generate a boot file for the device. The boot file includes one or more service flow classifiers that determine a service flow for packets destined for the device.

System and method for assigning a service flow classifier to a device

A MAC-to-IP system receives IP and/or MAC lease information of network end-points from one or more DHCP servers providing services to a region of a multi-system subscriber access network. The lease information includes the MAC and IP addresses of devices that can be provisioned by a DHCP server serving the particular region as well as lease expiration information (i.e., time and date). The lease information can be extracted from issued leases and does not affect the issuance of leases by the DHCP server. A DNS-to-MAC-to-IP query interface receives a DNS lookup request for a network end-point from a network device and converts the DNS lookup request into a MAC-to-IP database query. Data is obtained from the MAC-to-IP database to fulfill the DNS lookup request and DNS lookup response is created and sent to the requesting network device.

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Fairfax Station, VA, United States of America

Clayton O'Neill