Operation Manual

102
MST Port Settings
ThispagedisplaysthecurrentMSTIconguration
information for the Switch. From here you can update
theportcongurationforanMSTIID.Ifaloopoccurs,
the MSTP function will use the port priority to select
an interface to put into the forwarding state. Set a
higher priority value for ports you wish to be selected
forforwardingrst.Ininstanceswherethepriority
value is identical, the MSTP function will implement the
lowest MAC address into the forwarding state and other
interfaces will be blocked. Note that a lower priority
values mean higher priorities for forwarding packets.
MST ID:
Displays the ID of the MST group
that is created. A maximum of 15
groups can be set for the Switch.
Port:
Displays port or trunked port ID.
Priority:
Select the bridge priority value for
the MST. When Switches or bridges
are running STP, each is assigned a
priority. After exchanging BPDUs,
the Switch with the lowest priority
value becomes the root bridge. The
bridgepriorityisamultipleof4096.
If you specify a priority that is not
amultipleof4096,thepriorityis
automatically set to the next lowest
prioritythatisamultipleof4096.
For example, if you set the priority
toanyvaluefrom0through4095,
the priority is set to 0. The default
priority is: 32768. The valid range is
from 0–61440.
Internal Path Cost Conf:
The Internal Path Cost setting allows
you to specify the relative cost of
sendingspanningtreetrafcthrough
the interface to adjacent bridges
within a spanning tree region.
Internal Path Cost Oper:
Displays the operation cost of the
path from this bridge to the Root
Bridge.
Regional Root Bridge:
Thisisthebridgeidentierofthe
CST Regional Root. It is made up us-
ing the bridge priority and the base
MAC address of the bridge.