User`s manual

(config-if)# spanning-tree ?

cost Specifies spanning tree cost

edge-port Specifies spanning tree edge port

port-priority Specifies spanning tree port priority

spanning-disabled Disables the spanning tree

spanning-tree cost x command is used to set spanning tree port path cost

value on the interface port(s). It is used to determine the best path between

devices if looping happens. Lower values will be forwarded and should be

assigned to ports with fast connections. Higher values will be blocked and

should be assigned to ports with slow connections. “x” is the cost value and

its valid value is 1~65535. The suggestion values are 100(50~600) for 10M,

19(10~60) for 100M and 4(3~10) for 1000M connections.

spanning-tree edge-port command is used to set the interface port(s) as edge

port. And no spanning-tree edge-port command is used to set it as non-

edge port. “Edge port” means the interface port(s) are connected to end

device(s) but not switch-to-switch connection.

spanning-tree port-priority x command is used to set the spanning tree port

priority value on the interface port(s). “x” is the port-priority value and its valid

value is 0~240. If the path cost for all ports on a switch are the same, the port

with the highest priority (lowest value) will be forwarded when looping happens.

If more than one port have the same highest priority, the port with lowest port

number will be forwarded.

spanning-tree spanning-disabled command is used to disable spanning tree

function on the interface port(s). And no spanning-tree spanning-disabled

command will enable it.

23. speed command

This command is used to set the operation speed of the interface port(s).

(config-if)# speed ?

auto Set port speed to be auto

10 Set port speed to be 10M

100 Set port speed to be 100M

1000 Set port speed to be 1G

speed auto command will set the interface port(s) to auto-negotiation mode.

speed 10 command will set the interface port(s) to 10M speed.

speed 100 command will set the interface port(s) to 100M speed.

speed 1000 command will set the interface port(s) to 1000M(gigabit) speed.

24. switchport command

This command is used to configure some switch function characteristics for the

interface port(s).

(config-if)# switchport ?

acceptable-frame-types Specifies frame type

allowed Configures the VLAN port list