Method for network address table maintenance in a data-over-cable system using a network device registration procedure
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United States of America Patent
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Nov 25, 2003
Grant Date -
N/A
app pub date -
May 21, 1999
filing date -
May 21, 1999
priority date (Note) -
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Abstract
A method and system for network address maintenance in a data-over-cable system. The method includes determining whether a network device, such as a cable modem, registers in a timely manner. When updating network address tables, such as Address Resolution Protocol tables, a time value is associated with an address, such as an Internet Protocol ('IP') address, of a network device. If a time between two registration events exceeds this time value, the network address is deleted from the network address table. The deletion of the network address ensures that the device is isolated from the network. The method and system provide for the rapid removal of stale network addresses, freeing valuable memory space, and increasing security in a data-over-cable system.
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