D-Link xStack DES-6500 Cli Manual page 97

xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch CLI Manual
S u c c e s s .
D E S - 6 5 0 0 : 4 #
config stp mst_ports
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To designate ports 1 through 5 on module one, with instance ID 2, to have an auto internalCost and a priority of 16:
D E S - 6 5 0 0 : 4 # c o n f i g s t p m s t _ c o n f i g _ i d p o r t s 1 : 1 - 1 : 5
i n s t a n c e _ i d 2 i n t e r n a l C o s t a u t o p r i o r i t y 1 6
C o m m a n d : c o n f i g s t p m s t _ c o n f i g _ i d p o r t s 1 : 1 - 1 : 5
Used to update the port configuration for a MSTP instance.
config stp mst_ports <portlist> instance_id <value 0-15>
{internalCost [auto | <value 1-20000000>] `priority <value 0-240>}
This command will update the port configuration for a STP
instance_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 interfaces to be selected for forwarding first.
In instances where the priority value is identical, the MSTP function
will implement the lowest port number into the forwarding state and
other interfaces will be blocked. Remember that lower priority values
mean higher priorities for forwarding packets.
<portlist> - Specifies a port or range of ports to be configured. The
port list is specified by listing the lowest line card number and the
beginning port number on that line card, separated by a colon. Then
the highest line card number, and the highest port number of the
range (also separated by a colon) are specified. The beginning and
end of the port list range are separated by a dash. For example, 1:3
specifies line card number 1, port 3. 2:4 specifies line card number
2, port 4. 1:3-2:4 specifies all of the ports between line card 1, port 3
and line card 2, port 4  in numerical order.
instance_id <value 0-15> - Enter a numerical value between 0 and
15 to identify the instance_id previously configured on the Switch. An
entry of 0 will denote the CIST (Common and Internal Spanning Tree.
internalCost – This parameter is set to represent the relative cost of
forwarding packets to specified ports when an interface is selected
within a STP instance. The default setting is auto. There are two
options:
 auto – Selecting this parameter for the internalCost will set
quickest route automatically and optimally for an interface. The
default value is derived from the media speed of the interface.
 value 1-2000000 – Selecting this parameter with a value in
the range of 1-2000000 will set the quickest route when a loop
occurs. A lower internalCost represents a quicker transmission.
priority <value 0-240> - Enter a value between 0 and 240 to set the
priority for the port interface. A higher priority will designate the
interface to forward packets first. A lower number denotes a higher
priority.
Only Administrator-level users can issue this command.
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