Spanning-Tree Mst Instance Path-Cost - Allied Telesis SwitchBlade x908 Series Software Reference Manual

spanning-tree mst instance path-cost

Use this command to set the cost of a path associated with a port, for the specified MSTI.
This specifies the port's contribution to the cost of a path to the MSTI regional root via that
port. This applies when the port is the root port for the MSTI.
Use the no parameter with this command to restore the default cost value of the path.
Syntax
spanning-tree mst instance <instance-id> path-cost <1-200000000>
no spanning-tree mst instance <instance-id> path-cost
Parameter
<instance-id>
path-cost
Interface mode
Mode
The default path cost values and the range of recommended path cost values depend on the
Default
port speed, as shown in the following table from the IEEE 802.1q-2003 standard.
Port speed
Less than 100 Kb/s
1Mbps
10Mbps
100 Mbps
1 Gbps
10 Gbps
100 Gbps
1Tbps
10 Tbps
Before you can use this command to set a path-cost in a VLAN configuration, you must
Usage
explicitly add an MST instance to a port using the spanning-tree instance command.
Example
awplus(config-if)#
instance vlan (MSTP)
Related Commands
spanning-tree mst instance
C613-50007-01 REV B
Description
Specify the instance identifier <1-15>
<1-200000000> Specify the cost of path in the range of <1-200000000>
(a lower path-cost indicates a greater likelihood of the specific interface
becoming a root).
Default path cost
200,000,000
20,000,000
2,000,000
200,000
20,000
2,000
200
20
2
awplus# configure terminal
awplus(config)# interface port1.1.2
spanning-tree mst instance 3 path-cost
1000
Software Reference for SwitchBlade® x908, x900 and x600 Series Switches
TM
AlliedWare Plus Operating System - Software Version 5.3.1
Spanning Tree Commands
Recommended path cost range
20,000,000-200,000,000
2,000,000-20,000,000
200,000-2,000,000
20,000-200,000
2,000-20,000
200-2, 000
20-200
2-200
2-20
19.37