What does "bandwidth" mean in cached-routers?

[Tom Hek]

Yep, the speed of your circuit is limited by the slowest router in your
circuit.

Jackie wrote:
> Another question about the bandwidth of circuits: I see routers in a circuit having different bandwidth, from xxKB/s to xxxxKB/s. Is the bandwidth of the circuit as a whole determined by the router with the lowest bandwidth? For example: a circuit containing 3 nodes whose bandwidth are 4328, 4317, 327KB/s respectively. Can we say that the bandwidth of this circuit is 327KB/s?