I have always been under the belief that we should always configure the bandwidth statement under interfaces (especially the logical tunnel interfaces). This idea is founded on the principle that many routing protocols and QoS parameters utilize this information to paint an accurate assessment of the capabilities of a certain interface.
However, I am unable to find any kind of documented best practice stating that. Does anyone know of any document which specifically points out that this is a best practice.
I ask because I have now been told that you should never configure the bandwidth parameter except for the tunnel interface.
Anyone have any documented best practice one way or the other?