The issue here, of course, is whether a virtual collapsed backbone
is best or if an integrated routing/switching backbone is needed.
But a physical collapsed backbone
is subject to the limitations of shared media.
It suits campus backbone, collapsed backbone
and stand-alone environments.
As bandwidth demand increased, the company installed high-performance NETBuilder II1 bridge/routers as the collapsed backbone
The switch can serve as a concentrator for a wiring closet, or in a collapsed backbone
in small office/branch office LANs.