Supermicro SSE-G2252, Руководство пользователя

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Chapter 34: Spanning Tree Commands
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C
OMMAND
U
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 1034 ) takes precedence over port priority
( page 1042 ).
•
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)#
spanning-tree
priority
This command configures the spanning tree priority globally for this switch.
Use the no form to restore the default.
S
YNTAX
spanning-tree priority priority
no spanning-tree priority
priority - Priority of the bridge. (Range – 0-61440, in steps of 4096;
Options: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672,
32768, 36864, 40960, 45056, 49152, 53248, 57344, 61440)
D
EFAULT
S
ETTING
32768
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
Bridge priority is used in selecting the root device, root port, and
designated port. The device with the highest priority (i.e., lower numeric
value) becomes the STA root device. However, if all devices have the same
priority, the device with the lowest MAC address will then become the root
device.
E
XAMPLE
Console(config)#spanning-tree priority 40000
Console(config)#
spanning-tree
mst configuration
This command changes to Multiple Spanning Tree (MST) configuration
mode.