iES12G User’s Manual
iS5 Communications Inc.
42
This page contains settings for physical and aggregated ports. The aggregation settings are stack global.
Label
Description
Port
The switch port number of the logical STP port.
STP Enabled
Controls whether STP is enabled on this switch port.
Path Cost
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
favor of higher path cost ports. Valid values are in the range 1 to
200000000.
Priority
Controls the port priority. This can be used to control priority of ports
having identical port cost. (See above).
BPDU Guard
Enables BPDU (bridge protocol data unit) guard. This feature puts the
port in an error disable state in the event that it receives a BPDU on a port
that is not expecting it.
AdminEdge
Controls whether the operEdge flag should start as beeing set or cleared.
(The initial operEdge state when a port is initialized).
AutoEdge
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
