Allied Telesis AT-S63 - Manual (Page 240)

Chapter 15: Spanning Tree Protocol Commands
240 Section III: Spanning Tree Protocols
portpriority Specifies the port’s 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, for a total of 16 increments as
shown in Table 13. You specify the increment of the
desired value. The default is 128 (increment 8).
Description
This command configures the following STP parameter settings for a stack
port:
ˆ Port cost
ˆ Port priority
Examples
This command sets the port cost to 15 and the port priority to 192
(increment 12) for port 2.6:
set stp port=2.6 portcost=15 portpriority=12
This command sets the port cost to auto-detect on ports 4.7 to 4.10:
set stp port=4.7-4.10 portcost=auto
Table 13. Port Priority Value Increments
Increment
Port
Priority
Increment
Port
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
6 96 14 224
7 112 15 240