Patent ID: 8649258
Filing Date: 2014-02-11
Classification: H04L

Abstract:
1. A relay apparatus comprising: a transfer unit to transfer data from a preceding-stage communication apparatus to a subsequent-stage communication apparatus; a receiving unit to receive abnormality information indicating an abnormality of the data transferred by the transfer unit from the subsequent-stage communication apparatus; and a switching unit to switch a transfer destination of the data by the transfer unit on a basis of the abnormality information received by the receiving unit, wherein the abnormality information includes information indicating whether a detour path includes the subsequent-stage communication apparatus, and when the abnormality information of the abnormality and the subsequent-stage communication apparatus being not included in the detour path are detected, the switching unit switches the transfer destination, and when the abnormality information of the abnormality and the subsequent-stage communication apparatus being included in the detour path are detected, the switching unit does not switch the transfer destination, in a case of the relay apparatus being included in the detour path.