Snap-stabilization in message passing systems.
Intervenant(s) : Stéphane Devismes (LRI-LIP6)
In this presentation, we tackle the open problem of snap-stabilization in message-passing systems.
Snap-stabilization is a nice approach to design protocols that withstand transient faults. Compared to the well-known self-stabilization approach, snap-stabilization guarantees that the effect of faults is contained immediately after faults cease to occur.
Our contribution is twofold:
- First, we show that snap-stabilization is impossible for a wide class of problems if we consider networks with finite yet unbounded link capacity.
- Second, we show that snap-stabilization becomes possible in the same setting if we assume bounded-capacity links. We propose three
snap-stabilizing protocols working in fully-connected networks.
Our work opens exciting new research perspectives, as it enables the
snap-stabilizing paradigm to be implemented in actual networks.