Switching
[ Switching > L2-Redundancy > Spanning Tree > Port ]
210
RM GUI GRS
Release
8.0
09/2019
manualFwd
The
Spanning Tree
function is disabled on the port. The port forwards STP-BPDUs.
notParticipate
The port is not participating in STP.
Port role
Displays the current role of the port in CIST.
Possible values:
root
Port with the cheapest path to the root bridge.
alternate
Port with the alternative path to the root bridge (currently blocking).
designated
Port for the side of the tree averted from the root bridge (currently blocking).
backup
Port receives STP-BPDUs from its own device.
disabled
The port is inactive. See the
Basic Settings > Port
dialog,
Configuration
tab.
Port path cost
Specifies the path costs of the port.
Possible values:
0..200000000
(default setting:
0
)
When the value is
0
, the device automatically calculates the path costs depending on the data rate
of the port.
Port priority
Specifies the priority of the port.
Possible values:
16..240
in steps of 16 (default setting:
128
)
This value represents the first 4 bits of the port ID.
Received bridge ID
Displays the bridge ID of the device from which this port last received an STP-BPDU.
Possible values:
For ports with the
designated
role, the device displays the information for the STP-BPDU last
received by the port. This helps to diagnose the possible STP problems in the network.
For the
alternate
,
backup
,
master
, and
root
port roles, in the stationary condition (static
topology) this information is identical to the information of the
designated
port role.
If a port has no connection or if it did not receive any STP-BDPUs yet, then the device displays
the values that the port can send with the
designated
role.
Received port ID
Displays the port ID of the device from which this port last received an STP-BPDU.
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