Configuration Menu System
The alphabetic portion of the field defines the type of entry.
| Table | |
Entry |
| Definition |
| ||
|
|
|
BRC |
| Broadcast; cannot be added, deleted, or modified |
DYM |
| Dynamic; added dynamically when bridge learns a new address |
|
| Cannot be manually added, can be deleted, can be modified if con- |
|
| verted to a static entry |
MNG |
| Management; cannot be added, deleted, or modified |
SPT |
| Spanning Tree, permanent; cannot be added, deleted, or modified |
STP |
| Static; permanent, can be added, deleted, or modified |
STR |
| Static; deleted if bridge is reset; can be added deleted, or modified |
STT |
| Static, deleted on timeout; can be added, deleted, or modified |
The numeric portion defines the input port and output port. Here, input port refers to the segment the transmitting device is on, and output port refers to the segment the packet is forwarded to.
|
| Table | ||
Entry |
| In Port |
| Out Port |
|
| |||
|
|
|
|
|
1- |
| External segment |
| External segment |
2- |
| External segment |
| Hub segment |
3- |
| External segment |
| External segment and Hub segment |
| Hub segment |
| External segment | |
| Hub segment |
| Hub segment | |
| Hub segment |
| External segment and Hub segment | |
11 |
| External and Hub seg- |
| External segment |
|
| ment |
|
|
22 |
| External and Hub seg- |
| Hub segment |
|
| ment |
|
|
33 |
| External and Hub seg- |
| External segment and Hub segment |
|
| ment |
|
|
0- |
| External segment |
| Discard; do not forward |
| Hub segment |
| Discard; do not forward | |
00 |
| External and Hub seg- |
| Discard; do not forward |
|
| ment |
|
|
About dynamic and static table entries
The bridge treats these two classes of entries differently:
A dynamic table entry represents the segment location (which segment the device is connected to).After a reset or on being powered up, the bridge does not have any dynamic entries in its forwarding table. However, it is monitoring traffic on both.
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