Given for instance,
interface Tunnel200 tunnel destination 188.8.131.52
There's a static route for 184.108.40.206, pointing to physical interface Gi0/0. Gi0/0 is only used for tunnel200.
show interface summary,
the TxBS/RxBS of tunnel200 is always slightly lower than the physical interface Gi0/0. Shouldn't it be the other way round as there is overhead for the GRE tunnel?