Specifications

6.5 Case 4: Multi-Ethernet (Building) Backbone
Configuration Examples 6–9
6.5 Case 4: Multi-Ethernet (Building) Backbone
Goal
Design a multi-Ethernet building network. The network is in a multifloor building
and supports several departments.
Design Requirements
• Build LANs with WAN access.
• A centralized department is located on its own floor in the building, with shared
services and bridging between all LANs in the building.
• Four different departments, each located in separate floors of the same building.
• New multifunctional teams are formed from the four departments. Users must
have access to their own functional department LAN regardless of their location.
• Network management.
This building configuration is similar to Cases 1, 2, and 3 combined.
Suggested Configuration - Central Department:
This configuration is similar to Case 3.
• Platform type: Use a DEChub 900 MultiSwitch to support a mixture of half-
height and full-height modules and provide the integral management agent.
• Network Modules:
– DECswitch 900EE
– PORTswitch 900FP
– DECbrouter 90T1
– DECserver 900TM
– DECrepeater 90C
– DECrepeater 90T16
Suggested Configuration - Department 1:
This configuration is similar to Case 2.
• Platform type: DEChub 90
• Network Modules: