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Ethernet and Token Ring Special Filter Databases 4-51
Bridging
Figure 4-13. Ethernet Special Filter Database Window
Token Ring Special Filter Database Window
At the Token Ring Special Filter Database window, Figure 4-14, you can view a list
of the special Þlters for the selected bridge. There are 19 available Þlters in the
Token Ring Special Filter Database. You can not add any additional Þlters. You
can view Þve of these Þlters at a time in the Token Ring Special Filter Database
window. Use the scroll bars to view the other fourteen Þlters.
When you Þrst open the window, all Þlters will be undeÞned. For each Þeld, bytes
will be initialized with match any characters (xx) for each digit. Any hexadecimal
byte will be accepted as valid for the corresponding wildcard (xx) characters. For
example, a Source Address Þlter deÞned as Òxx-xx-xx-xx-bf-coÓ will pass the Þrst
four bytes of a frameÕs source address unconditionally, but the last two bytes must
match the Òbf-coÓ Þlter.
To access the Token Ring Special Filter Database window
from the Bridge Status window:
1. Click on to display the Bridge menu.
2. Drag down to select Token Ring Special Filter Database…. The Token Ring
Special Filter Database window, Figure 4-14, will appear.