Fumio Teraoka, Yunsop Han
Fast handover and fast failover mechanisms based on cross-layer collaboration among the link layer, the network layer and the transport layer
Fast handover and fast failover mechanisms based on cross-layer collaboration among the link layer, the network layer and the transport layer
Keywords: cross-layer collaboration, fast handover, SCTP
This paper describes a fast handover mechanism in the network layer called L3-FHOX and a fast failover mechanism in the transport layer called SCTPfx. Both mechanisms are based on a cross-layer architecture called CEAL. CEAL enables the control information exchange between layers in a node with keeping the layering structure. We implemented both mechanisms in Free BSD. The entire handover time in L3-FHOX is approximately 10 msec plus the RTT between the mobile node and its location management server while the normal handover procedure in IPv6 takes more than 1 second. The failover time of SCTPfx is 122 usec plus the RTT between the two end nodes while the normal failover procedure in SCTP takes more than 31 seconds.