Nortel BayStack 450-24T - Segment Switch Application; Figure 1-12. Baystack 450 Switch Used as a Segment Switch

Using the BayStack 450 10/100/1000 Series Switch
1-34 309978-D Rev 01
Segment Switch Application
Figure 1-12 shows a BayStack 450-24T 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.
Figure 1-12. BayStack 450 Switch Used as a Segment Switch
Server
Up to
88 users
To
Network
Center
Key
10 Mb/s
100 Mb/s
200 Mb/s
BayStack 450-24T
switch
10BASE-T hubs
Before
After
Server
Up to 22
users
Up to 23
users
To
Network
Center
BS45006A
Up to 23
users
Up to 23
users
Up to 23
users
- 88 users share 10 Mb/s (10/88 Mb/s per user)
- Server bottleneck (10 Mb/s bandwidth)
- Network center bottleneck (10 Mb/s bandwidth)
- Total of 88 users
- Four sets of 23 users; each set shares 10 Mb/s
(10/23 Mb/s per user)
- Addition of 22 users; each with dedicated
100 Mb/s bandwidth
- Server with dedicated 100 Mb/s bandwidth
- Network center with dedicated 100 Mb/s full-duplex bandwidth
(200 Mb/s bidirectional)
- Total of 114 users