Cabletron Systems 2.2 Manuel D’Utilisation

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Bridging
2-6
Viewing and Managing Bridging Interfaces
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The Spanning Tree window shows bridge port information and protocol 
parameters relating to the Spanning Tree AlgorithmÑthe method of 
determining the controlling bridge when a series of bridges are placed in 
parallel; see 
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With the Filtering Database window, you can see the contents of the Static and 
Learned databasesÑthe two address databases which construct the IEEE 802.1 
Source Address Table. The bridge uses the contents of these databases to make 
its packet Þltering and forwarding decisions. You can conÞgure entries in these 
databases to increase bridging efÞciency across your network. See 
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The Ethernet Special Filter Database and Token Ring Special Filter Database 
windows let you conÞgure special Þltering schemes. With these schemes, you 
can enter Þlter parameters for a frame based on the contents of its source or 
destination address Þeld, type Þeld, or data Þeld (with offset)Ñthen specify 
the bridging action to take place at each port when a frame matching your 
speciÞcations is encountered (see 
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The I/F ConÞguration port-level menu option invokes the Interface 
ConÞguration window, which allows you to select a bridging method for a 
Token Ring bridging interface. This window also allows you to select one of 
three transmission methods that should be used when unknown addresses are 
received from end stations attached to the selected bridge port. See 
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The Source Route ConÞguration option enables you to conÞgure source 
routed trafÞc passing between bridge ports; see 
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The Bridge ConÞguration option allows you to set address and routing 
information for all interfaces on a Token Ring bridging device, including the 
Bridge Number and the Virtual Ring Number. It also allows you to set source 
route bridging parameters at the device level. See 
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The Port ConÞguration option allows you to view the address and routing 
information for an individual Token Ring bridging interface. This window 
displays information that is set at the device level via the Bridge ConÞguration 
window, such as the Bridge Number and the Virtual Ring Number. It also 
allows you to set source route bridging parameters for that port. See 
, for details. 
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The Duplex Modes window lists each interface on your device and whether 
or not it is operating in Full Duplex mode. The window allows you to switch 
full duplex mode on and off for each interface on the device. Full Duplex 
Switched Ethernet (FDSE) mode allows the interface to transmit and receive 
information simultaneously, effectively doubling the available bandwidth. See 
for details.