The storage strategy for fine-grained OpenFlow multiple-table in TCAM

Forwarding lookup in the open flow switch can be done for each arriving packet by every switch in path. In view of the possible resource shortage in the existing SDN technology; this paper describes a fine-grained OpenFlow multiple-table pipeline architecture that efficiently stores the flow table in the TCAM memories. Simulations show that the strategy reduces the TCAM usage for the multipletable mapping scheme [1] by 14.3%, which is important for scalable designs of OpenFlow data planes.