MNS-BB
Software User Guide
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The command above outputs the result in tabular format. The explanation of each column in the table
is shown below:
Port#
: This field indicates the port number. Value ranges from 01 to max number of ports in the
switch.
Type
: This field indicates the type of port.
Port Priority
: STP uses this to determine which ports are used for forwarding. Lower the number
means higher priority. Value ranges from 0 to 255. Default is 128.
Path Cost
: This is the assigned port cost value used for the switch to determine the forwarding points.
Values range from 1 to 65535.
State
: This indicates the STP state of individual ports. Values can be Listening, Learning,
Forwarding, Blocking and Disabled.
Des. Bridge
: This is the port’s designated root bridge.
Des. Port
: This is the port’s designated root port.
13.4
Enabling or Disabling STP.
Enabling STP implements the spanning-tree protocol for all physical ports on the switch, regardless
of whether multiple VLANs are configured. Disabling STP removes protection against redundant
loops that can significantly slow or halt a network.
Go to STP configuration mode to configure STP.
Syntax
: stp <enter>
LE2425A#
stp <enter>
LE2425A(stp)##
To enable/disable STP
Syntax:
stp <enable|disable>
Default:
Disabled
This command enables STP with the current parameter settings or disables STP without losing the
most recently configured parameter settings. (To learn how the switch handles parameter changes, how
to test changes without losing the previous settings, and how to replace previous settings with new
settings, see appendix C, “ Switch Memory and Configuration”.) When enabling STP, you can also
include the STP general and per-port parameters described in the next two sections. When you use the
“no” form of the command, you can do so only to disable STP. (STP parameter settings are not
changed when you disable STP, and cannot be included with the no spanning-tree command.
Caution:
Because incorrect STP settings can adversely affect network performance, Blackbox
recommends that you use the default STP parameter settings. You should not change these settings
unless you have a strong understanding of how STP operates. For more on STP, see the IEEE 802.1D
standard.
LE2425A(stp)##
stp enable
