WAGO 852-1305 Manual page 93

WAGO-ETHERNET-Zubehör 852
852-1305 8/4-Port 100BASE-T/1000BASE-SX/LX
Port Priority
The port priority is configured on the switch. A low numeric value indicates a
high priority. A port with lower priority is more likely to be blocked by STP if a
network loop is detected. The valid range is from 0 to 240.
BPDU Guard
This setting is configured individual for each port. If the port is enabled in "BDU
Guard" and receives a BPDU, the port is switched to the "Disabled" state to
prevent a faulty environment. The user must manually enable the port.
BPDU Filter
This function is used to set up a filter for sending or receiving BPDUs on a switch
port. If the port receives BPDUs, the BPDUs are dropped. If both of the "BPDU
Filter" and "BPDU Guard" are enabled, the "BPDU Filter" has the higher priority.
BPDU Filter and BPDU Guard
If both of the "BPDU Filter" and "BPDU Guard" are enabled, the "BPDU Filter"
has the higher priority.
Root Guard
The "Root Guard" function forces an interface to become a "Designated Port" to
prevent neighboring switches from becoming a root switch. This function
provides a way to specify the selection of a "Root Bridge" in a network. It
prevents a "Designated Port" from becoming the "Root Port". If a port with the
"Root Guard" function receives a superior BPDU, the port moves to a root-
inconsistent state (effectively equal to the "Listening" state) to maintain the status
of the current "Root Bridge". The port can be moved to the "Forwarding" state if
no superior BPDU received over the period of three "Hello Times".
Manual
1.1.0
Enhanced Features 93