Patent ID: 8189601

Claim:
A communication apparatus for receiving one or more frames from a network, the communication apparatus comprising: a first determining part configured to search a first table by using a Virtual Local Area Network (VLAN) identifier included in one of the frames; a second determining part configured to search a second table by referring to a search result of the first determining part and using an Operation Administration Maintenance (OAM) identifier included in the one of the frames; a selecting part configured to determine whether the one of the frames is an OAM frame according to the search result of the second determining part; and a terminating part configured to terminate the one of the frames determined as the OAM frame by the selecting part; wherein the second table includes OAM type data; wherein the OAM type data of the second table includes at least one of OAM data, non-OAM data, and no-hit data; wherein the selecting part is configured to discard the one of the frames when the second determining part determines that the OAM identifier of the one of the frames does not match the OAM data, the non-OAM data, or the no-hit data included in the OAM type data in the second table.