ECS4660-28F_Management Guide-R03

C HAPTER 38 | Spanning Tree Commands
– 1290 –
be manually re-enabled using the no spanning-tree spanning-disabled
command if the auto-recovery interval is not specified.
◆ Before enabling BPDU Guard, the interface must be configured as an
edge port with the spanning-tree edge-port command. Also note that if
the edge port attribute is disabled on an interface, BPDU Guard will also
be disabled on that interface.
EXAMPLE
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree edge-port
Console(config-if)#spanning-tree bpdu-guard
Console(config-if)#
RELATED COMMANDS
spanning-tree edge-port (1291)
spanning-tree spanning-disabled (1299)
spanning-tree cost This command configures the spanning tree path cost for the specified
interface. Use the no form to restore the default auto-configuration mode.
SYNTAX
spanning-tree cost cost
no spanning-tree cost
cost - The path cost for the port. (Range: 0 for auto-configuration,
1-65535 for short path cost method
24
, 1-200,000,000 for long path
cost method)
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.
24. Use the spanning-tree pathcost method command on page 1282 to set the path cost
method.
Table 152: Recommended STA Path Cost Range
Port Type Short Path Cost
(IEEE 802.1D-1998)
Long Path Cost
(802.1D-2004)
Ethernet 50-600 200,000-20,000,000
Fast Ethernet 10-60 20,000-2,000,000
Gigabit Ethernet 3-10 2,000-200,000
10G Ethernet 1-5 200-20,000