User manual

Web Managed GbE Switch
52
As a general rule:
Note: 2 * (Forward Delay – 1) >= Max Age >= 2 * (Hello Time + 1)
Max Age
Set the time any switch should wait before trying to change the STP
topology after unhearing Hello BPDU.
Tx Hold Count
Set the Transmit Hold Count used to limit BPDU transmission rate. Enter
a number between 1 and 10 as the Tx hold count.
Hello Time
Set the interval between periodic transmissions of BPDU by Designated
Ports.
This is the time interval (in seconds) at which the root switch transmits a
configuration message. The root bridge determines Hello Time, Max Age
and Forward Delay.
Apply
Click Apply to save your changes to the switch.
3.3.9.2 STP Port Setting
Click Switching > STP > STP Port Setting.
The following table describes the labels in this screen.
LABEL
DESCRIPTION
Port Select
Select the port(s) to change Spanning Tree Protocol settings for.
External
Path cost is the cost of transmitting a frame on to a LAN through that port. It is