Allied Telesis AT-S63 - Manual (Page 216)

Chapter 18: RSTP Commands
216
SET RSTP PORT
Syntax
set rstp port= port [pathcost|portcost= cost |auto]
[portpriority= portpriority ]
[edgeport=yes|no|on|off|true|false]
[ptp|pointtopoint=yes|no|on|off|true|false|autoupdate]
[migrationcheck=yes|no|on|off|true|false]
Parameters
port Specifies the port you want to configure. You can
specify more than one port at a time. You can specify
the ports individually (for example, 5, 7, 22), as a range
(for example, 18-23), or both (for example, 1, 5, 14-22).
pathcost Specifies the port’s cost. The parameters are
portcost equivalent. The spanning tree algorithm uses the cost
parameter to decide which port provides the lowest
cost path to the root bridge for that LAN. The options
are:
cost A number for the port cost. The range is
1to 200,000,000.
auto Automatically sets the port cost
according to the speed of the port. This is
the default. Table 11 lists the port cost
with auto-detect.
Table 11. RSTP Auto-Detect Port Costs
Port Speed Port Cost
10 Mbps 2,000,000
100 Mbps 200,000
1000 Mbps 20,000