RGPS-92222GCP-NP Series User Manual
ORing Industrial Networking Corp.
25
Label
Description
Port
Port number
STP Enable
User can by port enable / disable STP Function
Path Cost Auto
User can setting Path Cost Auto or Specific
Path Cost Value
(1-200000000)
Controls the path cost incurred by the port. The Auto setting will set the
path cost as appropriate by the physical link speed, using the 802.1D
recommended values. Using the Specific setting, a user-defined value
can be entered. The path cost is used when establishing the active
topology of the network. Lower path cost ports are chosen as
forwarding ports in favour of higher path cost ports. Valid values are in
the range 1 to 200000000.
Port
Priority
(0-240)
Decide which port should be blocked by priority in the LAN. The valid
value is between 0 and 240, and must be a multiple of 16
Admin Edge
Controls whether the operEdge flag should start as set or cleared.
(The initial operEdge state when a port is initialized).
Auto Edge
Controls whether the bridge should enable automatic edge detection
on the bridge port. This allows operEdge to be derived from whether
BPDU's are received on the port or not.
Restricted
– Role
If enabled, causes the port not to be selected as Root Port for the CIST
or any MSTI, even if it has the best spanning tree priority vector. Such
a port will be selected as an Alternate Port after the Root Port has
been selected. If set, it can cause lack of spanning tree connectivity. It
can be set by a network administrator to prevent bridges external to a
core region of the network influence the spanning tree active topology,
possibly because those bridges are not under the full control of the
administrator. This feature is also known as Root Guard.
Restrcted -TCN
If enabled, causes the port not to propagate received topology change
notifications and topology changes to other ports. If set it can cause
temporary loss of connectivity after changes in a spanning tree's active
topology as a result of persistently incorrect learned station location
information. It is set by a network administrator to prevent bridges
external to a core region of the network, causing address flushing in
that region, possibly because those bridges are not under the full
control of the administrator or the physical link state of the attached
LANs transits frequently.
BPDU Guard
If enabled, causes the port to disable itself upon receiving valid