Spanning-Tree Pathcost Method - Edge-Core ES3510MA Management Manual

| Spanning Tree Commands
C 33
HAPTER
spanning-tree
pathcost method
restarts the system in the new mode, temporarily disrupting user
traffic.
E
XAMPLE
The following example configures the switch to use Rapid Spanning Tree:
Console(config)#spanning-tree mode rstp
Console(config)#
This command configures the path cost method used for Rapid Spanning
Tree and Multiple Spanning Tree. Use the no form to restore the default.
S
YNTAX
spanning-tree pathcost method {long | short}
no spanning-tree pathcost method
long - Specifies 32-bit based values that range from
1-200,000,000. This method is based on the IEEE 802.1w Rapid
Spanning Tree Protocol.
short - Specifies 16-bit based values that range from 1-65535.
This method is based on the IEEE 802.1 Spanning Tree Protocol.
D S
EFAULT ETTING
Long method
C M
OMMAND ODE
Global Configuration
C U
OMMAND SAGE
The path cost method is used to determine the best path between
◆
devices. Therefore, lower values should be assigned to ports attached
to faster media, and higher values assigned to ports with slower media.
Note that path cost
(page 775).
The path cost methods apply to all spanning tree modes (STP, RSTP
◆
and MSTP). Specifically, the long method can be applied to STP since
this mode is supported by a backward compatible mode of RSTP.
E
XAMPLE
Console(config)#spanning-tree pathcost method long
Console(config)#
– 762 –
(page 769) takes precedence over port priority