Changing Spanning Tree Global Parameters - Dell Force10 S2410-01-10GE-24P Configuration Manual

After lowering the priority of MST 5:
Force10 #show spanning-tree mst port summary 5 all
STP
Interface Mode
--------- -------- ------- ----------------- ----------
1/0/1 Enabled
1/0/2 Enabled
1/0/3 Enabled
1/0/4 Enabled
1/0/5 Enabled
1/0/6 Enabled
1/0/7 Enabled
1/0/8 Enabled
1/0/9 Enabled
1/0/10 Enabled
1/0/11 Enabled
1/0/12 Enabled
1/0/13 Enabled
1/0/14 Enabled
1/0/15 Enabled
--More-- or (q)uit

Changing Spanning Tree Global Parameters

SFTOS has the following STP global operational parameters that you can change from their defaults.
Command Syntax
[ no ] spanning-tree forward-time
spanning-tree hello-time
spanning-tree max-age
6-40
spanning-tree max-hops
STP
Type State
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Discarding
Forwarding
Disabled
Disabled
Disabled
Disabled
Command Mode
Global Config
4-30
Global Config
1-10
Global Config
1-127 Global Config
Port
Role
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Backup
Designated
Disabled
Disabled
Disabled
Disabled
Purpose
Set the Bridge Forward Delay forward-time value for
the common and internal spanning tree, with the value
being greater than or equal to "(Bridge Max Age / 2)
+ 1".
Range: 4 to 30 seconds
Default: 15 seconds
Set the Admin Hello Time for the common and
internal spanning tree, with the value being less than
or equal to "(Bridge Max Age / 2) - 1".
: 1 to 10
Range seconds
Default: 2 seconds
Set the Bridge Max Age for the common and internal
spanning tree, with the value being less than or equal
to "2 times (Bridge Forward Delay - 1)".
Range: 6 to 40 seconds
Default: 20 seconds
Set the MSTP Max Hops value for the common and
internal spanning tree.
Range: 1 to 127
Default: 20
Spanning Tree | 155