Cabletron Systems ELEMENT MANAGER NB30 Manual De Usuario

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NB-30 Bridging
3-8
Enabling and Disabling Bridging
Accessing Bridge Status Window Options
At the top of the Bridge Status window, you can click on Bridge to access a menu 
that provides other bridge management options:
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The Spanning Tree window, which allows you to set the Spanning Tree 
Algorithm parameters for bridging on your NB-30 (see 
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The Disable/Enable Bridge options, which allow you to suspend or resume 
bridge operations (see 
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A Bridge Performance Graph window and Bridge Summary Statistics 
window, which display network statistics Ñ both numerically and graphically 
Ñ for trafÞc across the entire bridge (see 
You can also access a Performance Graph and Statistics window for each 
individual interface by clicking on a port index button to display the port 
level management options (see 
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The Filtering Database window, which lets you conÞgure the NB-30 bridgeÕs 
Acquired and Permanent Þltering databases to Þlter or forward trafÞc across 
the NB-30 (see 
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The Reset CountersRestore Defaults, and Restart Bridge options, which 
allow you to refresh operating parameters at the bridge (see 
Enabling and Disabling Bridging
When you disable a bridge, you disconnect all its port networks from the bridge 
entirely. Its bridge ports do not forward any packets, nor do they participate in 
Spanning Tree operations. Nodes connected to the networks can still 
communicate with each other, but they canÕt communicate with the bridge and 
other networks connected to the bridge. When you enable bridge ports, they 
move from the Disabled state through the Learning and Listening states to the 
Forwarding or Blocking state (as determined by Spanning Tree).
When you disable bridging across the device, you simultaneously disable 
bridging at all ports supported by the device. 
To disable bridging across both ports on your NB-30 from the Bridge Status 
window:
1.
From the Bridge Status window, click on Bridge. A menu will appear.
2.
Click on Enable Bridge to restart bridging at the device level, or Disable 
Bridge
 to halt bridging across the entire device.