KTI Networks KGS-2421, Руководство пользователя

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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 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 .
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 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.
BPDU Guard If enabled, causes the port to disable itself upon receiving valid BPDU’s. Contrary to
the similar bridge setting, the port Edge status does not affect this setting.
A port entering error-disabled state due to this setting is subject to the bridge Port
Error Recovery setting as well.
Point2Point 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.
Save Click to save the changes.
Reset Click to undo any changes made locally and revert to previously saved values.
Note: This configuration applies to physical and Link Aggregation ports.
2.5.5 MSTI Ports
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.