Zhone 2000 用户手册

下载
页码 297
2000-A2-GB20-10
- 118 -
February 2004
This chapter describes how to configure the IAD as a bridge. A bridge is a 
device that connects and passes packets between two network segments 
that use the same communications protocol. A router generally improves 
overall efficiency for a complex network, but a bridge provides better 
speed and flexibility for the overall network. 
Bridges operate at the data link layer (Layer 2) of the OSI reference model. 
In general, a bridge filters, forwards or floods an incoming frame based on 
the MAC address of that frame.
This chapter contains the following topics:
‹
Basic Bridge Setup Tasks (page
)
‹
Using the Bridge Configuration Menu (page
‹
Enabling and Disabling Bridging Globally (page
‹
Enabling and Disabling Bridging by Port (page
‹
Configuring the Bridge Aging Timer (page
‹
Enabling and Disabling Spanning Tree Globally (page
‹
Enabling and Disabling Spanning Tree by Port (page
‹
Configuring Spanning Tree Bridge Priority (page
‹
Configuring Spanning Tree Port Priority (page
‹
Configuring Spanning Tree Hello Time (page
‹
Configuring Spanning Tree Max Age (page
)
‹
Configuring Spanning Tree Forward Delay (page
)
‹
Configuring Spanning Tree Path Cost (page
)
‹
Deleting a Bridge Forwarding Database Entry (page
%ULGJH&RQILJXUDWLRQ
 
NOTE
It is recommended that bridged network architecture be 
thoroughly understood prior to configuring the IAD. 
Suggested reading: “Interconnections: Bridges and Routers” 
by Radia Perlman, Addison-Wesley, 1992.
 
NOTE
When the IAD prompts you for input, the current value is 
displayed in parentheses. To conveniently accept the current 
value, just press Enter.