Cabletron Systems NB30 Enabling and Disabling Bridging, Accessing Bridge Status Window Options

NB-30 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:

¥The Spanning Tree window, which allows you to set the Spanning Tree Algorithm parameters for bridging on your NB-30 (see Bridge Spanning Tree, page 3-17).

¥The Disable/Enable Bridge options, which allow you to suspend or resume bridge operations (see Enabling and Disabling Bridging, page 3-8).

¥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 Bridge Statistics, page 3-9).

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 Bridge Statistics, page 3-9).

¥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 Filtering Database, page 3-24).

¥The Reset Counters, Restore Defaults, and Restart Bridge options, which allow you to refresh operating parameters at the bridge (see Restoring Bridge Defaults, page 3-31;Resetting Bridge Counters, page 3-32; or Restarting the Bridge, page 3-32).

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.

3-8 Enabling and Disabling Bridging