73
Default level
2: System level
Parameters
number
: Sets the maximum number of immediate forwarding address entry flushes that the device can
perform within a certain period of time (10 seconds). The value ranges from 1 to 255.
Description
Use
stp tc-protection threshold
to configure the maximum number of forwarding address entry flushes
that the device can perform every a certain period of time (10 seconds).
Use
undo stp tc-protection threshold
to restore the default.
By default, the device can perform a maximum of six forwarding address entry flushes every 10 seconds.
Examples
# Configure the device to perform up to 10 forwarding address entry flushes every 10 seconds.
<Sysname> system-view
[Sysname] stp tc-protection threshold 10
stp timer forward-delay
Syntax
stp timer forward-delay
time
undo stp
timer forward-delay
View
System view
Default level
2: System level
Parameters
time
: Sets the forward delay in 0.01 seconds, ranging from 400 to 3000 in steps of 100 (as in 400, 500,
600).
Description
Use
stp timer forward-delay
to set the forward delay timer of the device.
Use
undo stp timer forward-delay
to restore the default.
By default, the forward delay timer is 15 seconds.
The forward delay timer determines the time interval of state transition. To prevent temporary loops, a
spanning tree port goes through the learning (intermediate) state before it transits from the discarding to
the forwarding state. To stay synchronized with the remote device, the port has a wait period that is
determined by the forward delay timer before transiting from one state to another.
H3C does not recommend you to set the forward delay with this command. Instead, you can specify the
network diameter of the switched network by using the
stp bridge-diameter
command and let spanning
tree protocols automatically calculate optimal settings of the forward delay timer. If the network diameter
uses the default value, the forward delay timer also uses the default value.
Related commands:
stp timer hello
,
stp timer max-age
, and
stp bridge-diameter
.
