Stream Control Transmission Protocol (SCTP) is a new end-to-end transport protocol that is featured ‘multi-homing.' The mSCTP (mobile SCTP) is defined as SCTP with the capability of dynamic address reconfiguration. This paper describes a framework of mSCTP handover for supporting vertical handover between heterogeneous IP networks such as WLAN and 3G Cellular systems. We show some experimental results of the mSCTP vertical handover on Linux platforms. From the experimental results, we see that the handover latency of mSCTP depends on Round Trip Time (RTT) between two SCTP endpoints, possibly with the handover latency of 1 second below.