Table 19. port priority value increments – Allied Telesis AT-S63 User Manual
Page 601
AT-S63 Management Software Command Line User’s Guide
Section V: Spanning Tree Protocols
601
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 19. You specify the increment that
corresponds to the desired value. The default is 128,
which is increment 8.
edgeport
Defines whether the port is functioning as an edge port.
An edge port is connected to a device operating at half-
duplex mode and is not connected to any device
running STP or RSTP. The options are:
yes, on, true
The port is an edge port. The options
are equivalent.
no, off, false
The port is not an edge port. The
options are equivalent. This is the
default.
ptp or
Defines whether the port is functioning as a point-
pointtopoint
to-point port. The parameters are equivalent. This type
of port is connected to a device operating at full-duplex
mode. The options are:
yes, on, true
The port is an point-to-point port. The
options are equivalent.
1000 Mbps
2,000
Table 19. 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
6
96
14
224
7
112
15
240
Table 18. RSTP Auto-Detect Port Trunk Costs
Port Speed
Port Cost