Effect of Context Transfer during Handoff on Flow Marking in a DiffServ Edge Router
Muhammad Jaseemuddin, Omer Mahmoud, Junaid Ahmed Zubairi · 2001
When a mobile node moves and changes its connectivity from one RER to another, the new RER does not have the context unless it is transferred from the old RER. We conducted a study considering a diffserv domain where RERs run TSW scheme to meter the flows and mark the packets. In this paper we present the results of this study, which shows that by transferring the estimated average bandwidth during handoff marking of packets reach stability quickly. If the context is not transferred, then the marking at the new RER takes a while to reach stability. The instability period is proportional to the window size setting. The initialization of window size limits the context transfer latency.