3Com CoreBuilder 3500, Command Reference Manual

Page: 264 / 784

264 C
HAPTER
9: B
RIDGE
-
WIDE
P
ARAMETERS
bridge spanningTree
✓
3500
✓
9000
✓
9400
✓
3900
✓
9300
stpForwardDelay
Sets the amount of time that the bridge spends in each of the listening
and learning states if it is the root bridge. The current value is shown in
the bridgeFwdDelay field of the
bridge display
.
Valid Minimum Abbreviation
b sp stpf
Important Considerations
■
This value temporarily prevents a bridge from starting to forward data
packets to and from a link until news of a topology change has spread
to all parts of a bridged network.
■
The recommended and default value is
15
seconds.
■
Setting the value too low can result in temporary loops while STP
reconfigures the topology.
■
Setting the value too high can lead to a longer wait while STP
reconfigures the topology.
■
If the configuration was not successful, the system notifies you that
your changes failed, and you can try to reenter the changes.
■
Although the possible range for stpForwardDelay is 4 – 30, the
available range is constrained by the following inequality:
2 x (stpForwardDelay - 1 second) >= stpMaxAge
Options
Prompt Description Possible Values [Default]
STP forward delay Time (in seconds) that a
bridge spends in the listening
state and the learning state
4 – 30 seconds 15 (factory
default), or
current value