Spanning-Tree Cost - Planet SGSD-1022 User Manual

spanning-tree cost

This command configures the spanning tree path cost for the specified interface. Use the no form to restore the default.
Syntax
spanning-tree cost cost no spanning-tree cost
(Range: 0 for auto-configuration, 1-65535 for short path cost method23, 1-200,000,000 for long path cost method)
Use the spanning-tree pathcost method command on page 4-206 to set the path cost method.
Port Type
Ethernet
Fast Ethernet
Gigabit
Ethernet
Default Setting
By default, the system automatically detects the speed and duplex mode used on each port, and configures the path cost
according to the values shown below. Path cost "0" is used to indicate auto-configuration mode. When the short path cost
method is selected and the default path cost recommended by the IEEE 8021w standard exceeds 65,535, the default is
set to 65,535.
Port Type
Ethernet
Fast Ethernet
Port Type IEEE 802.1D-1998
Ethernet 50-600
Fast Ethernet 10-60
Gigabit Ethernet 3-10
Table 5-63 Recommended STA Path Cost Range
Link Type
Half
DuplexFull
DuplexTrunk
Half
DuplexFull
DuplexTrunk
Full
DuplexTrunk
Table 5-64
Link Type
Half Duplex
Full Duplex
Trunk
Half Duplex
Full Duplex
Trunk
User's Manual of SGSD-1022 / SGSD-1022P
IEEE 802.1w-2001
200,000-20,000,000
20,000-2,000,000
2,000-200,000
IEEE 802.1D-1998 IEEE 802.1w-2001
100 2,000,000
95 1,999,999
90 1,000,000
19 200,000
18 100,000
15 50,000
4 10,000
3 5,000
Recommended STA Path Cost
IEEE 802.1w-2001
2,000,000
1,000,000
500,000
200,000
100,000
50,000
552
SGSW-2840 / SGSW-2840P