Nortel Networks 1000ASE-XD - Manual (Page 46)

46 Chapter 2 Network configuration
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Figure 6 BayStack 420 Switch used as a desktop switch
Segment switch application
Figure 7 shows a BayStack 420 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.
Up to 24 users
To
Network
Center
Key
10 Mb/s
100 Mb/s
1000 Mb/s
BayStack 420 10BASE-T hub
Before After
Up to 24 users
To
Network
Center
9996EA
- 23 users share 10 Mb/s (10/24 Mb/s per user)
- Network center bottleneck (10 Mb/s bandwidth) - 24 users; each with dedicated 100 Mb/s bandwidth
- Network center with dedicated 1 Gb/s full-duplex
bandwith