Collapsed Backbone Configuration - 3Com CoreBuilder 5000 User Manual

2-14 D E
ESIGNING AND XPANDING THE
Collapsed Backbone
Configuration
N
ETWORK
Networks that use a collapsed backbone result in:
Reduced costs
Enhanced security
Controlled access to networking equipment
Centralize major networking devices (such as file servers, protocol
analyzers, bridges, and routers) in one controlled area such as a
computer room
Figure 2-2 illustrates the following configuration:
1 A master CoreBuilder 5000 hub is located in the central computer
room on floor 1 of a 3-story building.
2 The CoreBuilder 5000 hubs on floors 2 and 3 both contain
CoreBuilder 5000 Dual Fiber Repeater modules that connect through
the vertical riser of the building to two CoreBuilder 5000 Dual Fiber
Repeater modules in the master concentrator.
3 Traffic sent by the departmental LANs travels directly to the master hub.
4 A single Dual Fiber Repeater module extends both Ring 1 and Ring 2 to
the master hub. Ring 1 and Ring 2 users exist on each Active Per-Port
Switching Module in the third floor hub.