Patent ID: 6505311
Filing Date: 2003-01-07
Classification: H04L

Abstract:
In a method of communicating between apparatuses in a network system including a first internetwork apparatus coupled to at least one network to which at least one terminal is coupled and a second internetwork apparatus, wherein communication is performed between said first internetwork apparatus and said second internetwork apparatus through a transmission medium coupled therebetween, said method comprising the steps of:transmitting, in response to an occurrence of a failure in a path between said first internetwork apparatus and said at least one network, a notification relating to said failure to said second internetwork apparatus from said first internetwork apparatus through said transmission medium; receiving said notification relating to said failure in said second internetwork apparatus through said transmission medium; transmitting, from said first internetwork apparatus to said second internetwork apparatus through said transmission medium, data which is to be transmitted in a normal state from said first internetwork apparatus to said at least one terminal through said path at which said failure occurred; and receiving said data to be transmitted to said at least one terminal in said second internetwork apparatus through said transmission medium.