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The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a high port cost
between switches B and C. The two (optional) Gigabit ports (default port cost = 20,000) on switch A are connected to one
(optional) Gigabit port on both switch B and C. The redundant link between switch B and C is deliberately chosen as a 100 Mbps
Fast Ethernet link (default port cost = 200,000). Gigabit ports could be used, but the port cost should be increased from the
default to ensure that the link between switch B and switch C is the blocked link.
This section has the following items:
。
STP Bridge Settings
Configures STP Bridge settings
。
STP Port Settings
Configure STP port setting
。
Loopback Detection
Configuration Loopback Detection settings
4.7.1
STP Bridge Settings
The STP
System Configuration screen in
Figure 4-7-4
appears. Please note that the PoE web smart switch doesn’t support
spanning tree edge port function, so BPDU packet will be sent to each port for preveting loop issue when port status has been
changed then port will be re-connected again after 1 second or 30 seconds (depends
on oyu setup STP or RSTP).
Figure 4-7-4
STP Bridge Setting page screenshot
The page includes the following fields:
Object
Description
•
STP Mode
Select STP mode for this drop-down list.
-Disable
-STP
-
RSTP
•
Bridge Priority
(0~61440)
Controls the bridge priority. Lower numeric values have better priority. The bridge
priority plus the MSTI instance number, concatenated with the 6-byte MAC
