Patent ID: 6768720
Filing Date: 2004-07-27
Classification: G06F,H04L

Abstract:
A method to verify link integrity of a home local area network, comprising the steps of:reading an interrupt status variable of a link controller for indicating receipt and non-receipt of a packet and transmission and non-transmission of a packet by the link controller on the link; setting a link transition pending variable to indicate an absence of a pending link transition if the interrupt status variable indicates receipt of a packet; setting a link state variable of the link controller to indicate the link is a working link if the interrupt status variable indicates receipt of a packet; setting the link transition pending variable to indicate a pending link transition if the interrupt status variable indicates non-receipt of a packet and non-transmission of a packet when the link state variable indicates the link is a working link; and setting the link state variable to indicate t the link is a non-working link if the interrupt status variable indicates non-receipt of a packet and non-transmission of a packet.