Cist Port Settings - EnGenius EGS5212FP User Manual

CIST Port Settings

Use the CIST Ports Settings page to configure and view
STA attributes for interfaces when the spanning tree
mode is set to STP or RSTP. You may use a different
priority or path cost for ports of the same media type to
indicate a preferred path or Edge Port to indicate if the
attached device can support fast forwarding or link type
to indicate a point-to-point connection or shared-media
connection.
MST ID:
Port:
Priority:
Internal Path Cost Conf:
Internal Path Cost Oper:
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Select the MST ID from the list.
Port or trunked port identifier.
Defines the priority used for this
port in the Spanning Tree Algorithm.
If the path cost for all ports on a
Switch are the same, the port with
the highest priority (i.e., lowest
value) will be configured as an active
link in the Spanning Tree. This makes
a port with higher priority less likely
to be blocked if the Spanning Tree
Algorithm is detecting network
loops. When more than one port is
assigned the highest priority, the
port with lowest numeric identifier
will be enabled. The range is from
0-240, in steps of 16; and the
default is: 128.
The Internal Path Cost setting
allows you to specify the relative
cost of sending spanning tree traffic
through the interface to adjacent
bridges within a spanning tree
region.
The External Path Cost setting is
used to calculate the cost of sending
spanning tree traffic through the
interface to reach an adjacent
spanning tree region. The spanning
tree algorithm tries to minimize the
total path cost between each point
of the tree and the root bridge.