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Hello time
Configure the Hello Time. The Hello Time indicates the time interval in seconds a
STP-enabled port waits to send BPDU messages.
Forward Delay
The Forward Delay Time is the amount of time in seconds a bridge remains in a listening
and learning state before forwarding packets. Valid values range from 4 to 30 seconds.
Fields on the Loopback Detection section are described below:
Field
Description
Loopback Detection
With this feature enabled, the switch will be able to detect loops from
downlinked devices and put the ports in a status of Active. Loops are confirmed
when the port receives BPDU messages it sent. If no loop is detected, port status
will not be changed.
Auto-Wakeup
Enable/disable it to allow/disallow blocked ports to forward packets when loop
disappears. If enabled, blocked ports will re-enter “Forward” state, meaning that
such ports regain the ability to forward packets when the switch detects no
current loop during a specified Wakeup Time Interval. However if loop still
exists, then such blocked ports will remain in “Blocked” state, meaning that they
are still not able to forward packets. If disabled, when the port becomes
“Active”, you will need to manually enable the port on the port setup screen.
Wakeup Time Interval
When enabled, port in “Discard” status will enter Forwarding status and
re-detect network.
Fields displayed on the bridge status section are described below:
Field
Description
Bridge ID
Displays the Bridge ID. The bridge ID consists of priority and MAC Address of the bridge
Root Bridge ID
The ID of the Bridge that is selected as root bridge in spanning tree
Hello Time
Displays the Root Bridge Hello Time
Max Age
Displays the Root Bridge Maximum Age Time
Forward Delay
Displays the Root Bridge Forward Delay Time
Note:
If STP is disabled; loopback detection and Auto-Wakeup features will not take effect even when they are enabled.
If STP is enabled and loopback detection is disabled, the Auto-Wakeup feature will not take effect even when
enabled.
2 x (Forward delay - 1) ≤
Max Age≥ 2 x (Hello Time + 1)
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