A router has a function of providing a label used for transferring a datalink frame by a cut-through operation (i.e., datalink-layer switching). Whether the cut-through operation is to be performed or not is indicated by a cut-through declarator described in a prescribed portion (e.g., OUI field) within...http://www.google.com/patents/US6490292?utm_source=gb-gplus-sharePatent US6490292 - Router apparatus and frame transfer method
