University of Zaragoza University of Zaragoza University of Zaragoza When small payloads are transmitted through a packet-switched network, the resulting overhead may result significant. This is stressed in the case of LISP, where a number of headers have to be added to each packet. This document proposes a way to send together, into a single packet, a number of small packets, which are in the buffer of a ITR, having the same ETR as destination. This way, they can share a single LISP header, and therefore bandwidth savings can be obtained, and a reduction in the overall number of packets sent to the network can be achieved.