Transition Networks
SISGM
–CHAS L2/L3 Switch User Guide
33625 Rev. B
Page
47
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234
AdminEdge
Configures the operEdge flag to start as set or cleared.(the initial
operEdge state when a port is initialized).
AutoEdge
Check to enable the bridge to detect edges at the bridge port
automatically. This allows
operEdge
to be derived from whether BPDUs
are received on the port or not.
Restricted 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.
Restricted TCN
When enabled, the port will not propagate received topology change
notifications and topology changes to other ports. If set, it will cause
temporary disconnection after changes in an active spanning trees
topology as a result of persistent incorrectly learned station location
information. It is set by a network admin to prevent bridges outside a core
region of the network from causing address flushing in that region
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 checked, causes the port to disable itself upon receiving valid BPDUs.
Contrary to the similar bridge setting, the port Edge status does not affect
this setting. The default is unchecked.
A port entering error-disabled state due to this setting is subject to the
bridge ‘Port Error Recovery’ setting as well.
Point-to-Point
Configures whether 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. Transiting to forwarding state is faster for point-to-point
LANs than for shared media.
Save
Click to save changes.
Reset
Click to undo any changes made locally and revert to previously saved
values.
