Niveo Professional NGSME16T2H - Manual (Page 122)

Chapter 3: Featuring Configuration – Web UI
Featuring Configuration – Web UI
NGSME16T2H User Manual | 122
Priority
Controls the port priority. This can be used to control priority of ports having identical
port cost. (See above).
operEdge (state flag)
Operational flag describing whether the port is connecting directly to edge devices.
(No Bridges attached). Transition to the forwarding state is faster for edge ports
(havingoperEdge true) than for other ports.The value of this flag is based on
AdminEdge and AutoEdge fields. This flag is displayed as Edge in
Monitor->Spanning Tree -> STP Detailed Bridge Status.
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.
Restricted 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.