Bay Technical Associates 304 用户手册

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Customizing and Managing the BayStack Switches
893-01010-A
3-19
 
The BayStack 303 switch can be used as a desktop switch to provide 100 Mb/s 
connections to the server and network center and to give dedicated 10 Mb/s 
connections to up to 23 users instead of shared 10 Mb/s connections (see 
Figure 3-4.
BayStack 303 as a desktop switch
Spanning Tree  Protocol
The Spanning Tree Protocol is a technique based on the IEEE 802.1d standard that 
detects and eliminates logical loops in a bridged or switched network. When 
multiple paths exist, the Spanning Tree Algorithm configures the network so that a 
bridge/switch uses only the most efficient path. If that path fails, the protocol 
automatically reconfigures the network to make another path become active, 
sustaining network operations. 
Before
22 users sharing 10 Mb/s (10/22 Mb/s per user)
Server bottleneck (10 Mb/s pipe)
Network center bottleneck (10 Mb/s pipe)
After
23 users each with dedicated 10 Mb/s
Additional 23 users with shared 10 Mb/s
Server with dedicated 100 Mb/s pipe
Network center with dedicated 100 Mb/s or 
200 Mb/s pipe
BayStack 303 switch 
303
10BASE-T hub
10BASE-T hub
Server
To
network
center
To
network
center
Up to 22 users
10 Mb/s
100 Mb/s
200 Mb/s
Up to 23 users
Up to 22 users
Server
7518EA
89301010.BK  Page 19  Tuesday, June 10, 1997  8:00 PM