  We study symmetric queuing networks with moving servers and FIFO service
discipline. The mean-field limit dynamics demonstrates unexpected behavior
which we attribute to the meta-stability phenomenon. Large enough finite
symmetric networks on regular graphs are proved to be transient for arbitrarily
small inflow rates. However, the limiting non-linear Markov process possesses
at least two stationary solutions. The proof of transience is based on
martingale techniques.
