Nortel business policy switch 2000, User Manual

Page: 95 / 412

Chapter 2 Network configuration 95
Using the Business Policy Switch 2000 Version 2.0
Desktop switch application
Figure 8 shows a Business Policy Switch used as a desktop switch, where desktop
workstations are connected directly to switch ports.
This configuration provides dedicated 100 Mb/s connections to the network
center, the server, and as many as 26 users. This configuration uses the optional
BPS2000-4TX MDA (10BASE-T/100BASE-TX MDA).
Figure 8 Business Policy Switch used as a desktop switch
Segment switch application
Figure 9 shows a Business Policy Switch used as a segment switch to alleviate
user contention for bandwidth and eliminate server and network bottlenecks.
Before segmentation, 88 users had a total bandwidth of only 10 Mb/s available.
After segmentation, 92 users have 40 Mb/s, four times the previous bandwidth,
while adding 22 dedicated 100 Mb/s connections. This configuration can be
extended to add more segments without degrading performance.
Server Up to 22 users
To
Network
Center
Key
10 Mb/s
100 Mb/s
Business Policy Switch 2000
10BASE-T hub
Before After
Server Up to 26 users
To
Network
Center
9795EA
- 22 users share 10 Mb/s (10/22 Mb/s per user)
- Server bottleneck (10 Mb/s bandwidth)
- Network center bottleneck (10 Mb/s bandwidth) - 26 users; each with dedicated 100 Mb/s bandwidth
- Server with dedicated 100 Mb/s bandwidth
- Network center with dedicated 100 Mb/s full-duplex
bandwith (200 mb/s bidirectional)