ORiNG DGS-7084GCP-AIO_S SERIES User Manual page 45

Industrial managed gigabit bypass ethernet switch

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Restricted TCN

Point2Point

MSTI Ports

This page allows the user to inspect the current STP MSTI port configurations, and possibly

change them as well. A MSTI port is a virtual port, which is instantiated separately for each

active CIST (physical) port for each MSTI instance configured and applicable for the port. The

MSTI instance must be selected before displaying actual MSTI port configuration options.

This page contains MSTI port settings for physical and aggregated ports. The aggregation

settings are stack global.

ORing Industrial Networking Corp

DGS-7084GCP-AIO_S SERIES User's Manual

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

influencing the spanning tree active topology, possibly because

those bridges are not under the full control of the administrator.

This feature is also know as Root Guard.

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 trees active topology as a result of persistent incorrectly

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 is the physical link state for the attached LANs

transitions frequently.

Controls whether the port connects to a point-to-point LAN rather

than a shared medium. This can be automatically determined, or

forced either true or false. Transition to the forwarding state is

faster for point-to-point LANs than for shared media.

Click to save changes.

Click to undo any changes made locally and revert to previously

saved values.

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