In this work, we study the stability of the {\sf FIFO} ({\sf
First-In-First-Out}) protocol in the context of Adversarial
Queueing Theory. As an important intermediate step, we consider
{\em dynamic capacities}, where each network link capacity may
arbitrarily take on values in the two-valued set of integers
$\{1,C\}$ for $C>1$ ... more >>>

In this paper, we investigate and analyze for the first time the
stability properties of heterogeneous networks, which use a
combination of different universally stable queueing policies for
packet routing, in the Adversarial Queueing model. We
interestingly prove that the combination of SIS and LIS policies,
LIS and NTS policies, ... more >>>