![ORiNG TES-3080-M12 Series Скачать руководство пользователя страница 29](http://html1.mh-extra.com/html/oring/tes-3080-m12-series/tes-3080-m12-series_user-manual_1651980029.webp)
TES-3080-M12(-BP2) User Manual
ORing Industrial Networking Corp
28
valid value is between 0 and 240, and must be a multiple of 16
Oper P2P
Configures the port connects to a point-to-point LAN rather than a
shared medium. This can be configured automatically or set to
true or false manually. True means P2P enabling. False means
P2P disabling. Transiting to forwarding state is faster for
point-to-point LANs than for shared media.
Oper Edge
A flag indicating whether the port is connected directly to edge
devices or not (no bridges attached). Transiting to the forwarding
state is faster for edge ports (operEdge set to true) than other
ports.
STP Neighbor
The port uses mathematical calculations according to STP.
True
means not included in mathematical calculations, and
False
means contained in mathematical calculations according to STP.
State
Determines the STP state of the port
Role
When enabled, the port will not be selected as root port for 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, spanning trees will lose connectivity. It
can be set by a network administrator to prevent bridges outside a
core region of the network from influencing the active spanning
tree topology because those bridges are not under the full control
of the administrator. This feature is also known as Root Guard.
Apply
Click to apply the configurations.
4.5.2 MSTP
Since the recovery time of STP and RSTP takes seconds, which is unacceptable in industrial
applications, MSTP was developed. The technology supports multiple spanning trees within a
network by grouping and mapping multiple VLANs into different spanning-tree instances,
known as MSTIs, to form individual MST regions. Each switch is assigned to an MST region.
Hence, each MST region consists of one or more MSTP switches with the same VLANs, at
least one MST instance, and the same MST region name. Therefore, switches can use
different paths in the network to effectively balance loads.