Connectivity Guide

spanning-tree msti
Congures the MSTI, cost, and priority values for an interface.
Syntax
spanning-tree msti instance {cost cost | priority value}
Parameters
• msti instance — Enter the MST instance number, from 0 to 63.
• cost cost — (Optional) Enter a port cost value, from 1 to 200000000. Default values:
– 100 Mb/s Ethernet interface = 200000
– 1-Gigabit Ethernet interface = 20000
– 10-Gigabit Ethernet interface = 2000
– Port-channel interface with one 100 Mb/s Ethernet = 200000
– Port-channel interface with one 1 Gigabit Ethernet = 20000
– Port-channel interface with one 10 Gigabit Ethernet = 2000
– Port-channel with two 1 Gigabit Ethernet = 18000
– Port-channel with two 10 Gigabit Ethernet = 1800
– Port-channel with two 100 Mbps Ethernet = 180000
• priority value — Enter a value in increments of 16 as the priority, from 0 to 240, default 128.
Default Priority value is 128
Command Mode INTERFACE
Usage Information The cost value is based on the interface type. The greater the cost value, the less likely the port is selected to
be a forwarding port. The priority inuences the likelihood that a port is selected to be a forwarding port if
several ports have the same cost value.
Example
OS10(conf-if-eth1/1/1)# spanning-tree msti 1 priority 0
OS10(conf-if-eth1/1/1)# spanning-tree msti 1 cost 3
Supported Releases 10.2.0E or later
spanning-tree mst conguration
Enters MST mode to congure MSTP from Conguration mode.
Syntax
spanning-tree mst configuration
Parameters None
Default Disabled
Command Mode CONFIGURATION
Usage Information Use this command to enter STP MST conguration mode.
Example
OS10(config)# spanning-tree mst configuration
OS10(conf-mst)#
Supported Releases 10.2.0E or later
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