User`s manual

spanning-tree compatible command is used to change its operation to 802.1D

STP instead of 802.1w RSTP. And no spanning-tree complatible command

is used to set it back.

spanning-tree forward-time x command is used to set the forwarding delay of

spanning tree operation. It is the maximum waiting time before changing

states. This delay is required because every device must receive information

about topology changes before it starts to forward frames. “x” is the delay

time, and its valid value is 4-30 in seconds

spanning-tree hello-time x command is used to set the period to send

spanning tree maintenance packet if the switch is the root of spanning tree.

“x” is the period time, and its valid value is 1-10 in seconds.

spanning-tree max-age x command is used to set the spanning tree aging

time if no spanning tree maintenance packet is received. “x” is the time, and

its valid value is 6-40 in seconds.

spanning-tree priority x command is used to set the bridge priority of the

switch. Bridge priority is for selecting the root device, root port, and

designated port. The device with the highest priority (lowest value) becomes the

STA root device. If all devices have the same priority, the device with the

lowest MAC address will then become the root device. “x” is the priority, and

its valid value is 0-61440.

The settings of spanning tree on port are done in “interface” command. The

settings here are for bridge only.

27. storm-control command

This command is used to set the storm control rate. The packet storms that

could be controlled are broadcast, multicast, and unicast flooding traffic. And

the rate is counted with packet per second(pps), not bit per second(bps).

storm-control bc-rate x command is used set rate limit for broadcast traffic. “x”

is the limit rate number, and its valid value is 0-11. (0:disable, 1:1Kpps,

2:2Kpps, 3:4Kpps, 4:8Kpps, 5:16Kpps, 6:32Kpps, 7:64Kpps, 8:128Kpps,

9:256Kpps, 10:512Kpps, 11:1024Kpps)

storm-control mc-rate x command is used set rate limit for multicast traffic. “x”

is the limit rate number, and its valid value is 0-11. (0:disable, 1:1Kpps,

2:2Kpps, 3:4Kpps, 4:8Kpps, 5:16Kpps, 6:32Kpps, 7:64Kpps, 8:128Kpps,

9:256Kpps, 10:512Kpps, 11:1024Kpps)

storm-control fc-rate x command is used set rate limit for unicast flooding

traffic. “x” is the limit rate number, and its valid value is 0-11. (0:disable,

1:1Kpps, 2:2Kpps, 3:4Kpps, 4:8Kpps, 5:16Kpps, 6:32Kpps, 7:64Kpps,

8:128Kpps, 9:256Kpps, 10:512Kpps, 11:1024Kpps)

28. trunk command

This command is used to enable trunk function of the switch. And no trunk

comand can be used to disable it.