Allied Telesis AT-S63 - Manual (Page 307)

AT-S63 Management Software Web Browser Interface User’s Guide
Section IV: Spanning Tree Protocols 307
Note
The aging time for BPDUs is different from the aging time used by
the MAC address table.
Bridge Identifier
The MAC address of the bridge. The bridge identifier is used as a tie
breaker in the selection of the root bridge when two or more bridges
have the same bridge priority value. This value cannot be changed.
6. After you have made the desired changes, click Apply.
7. To configure a port’s STP settings, click on the port in the switch image
and click Modify. You can select more than one port at a time.
The STP Settings - Port(s) page is shown in Figure 126.
Figure 126. STP Settings - Port(s) Page
8. Configure the following parameters as necessary.
Port Priority
This parameter is used as a tie breaker when two or more ports are
determined to have equal costs to the root bridge. The range is 0 to
240 in increments of 16. The default value is 8 (priority value 128). For
a list of the increments, refer to Table 7.
Table 7. Port Priority Value Increments
Increment
Bridge
Priority
Increment
Bridge
Priority
0 0 8 128
1 16 9 144
2 32 10 160
3 48 11 176
4 64 12 192
5 80 13 208