Enabling/Disabling Mstp On The Device; Enabling/Disabling Mstp On A Port - H3C S9500 Series Operation Manual

Operation Manual – STP
H3C S9500 Series Routing Switches
Note:
The port configured with loop protection can only turn into discarding state on every
instance. That such a port receives no configuration message for a long time
indicates that it is about to change its state and role. Only the port role changes but
the port discarding state remains unchanged, and no packets are forwarded. In this
way, if the peer end cannot send BPDU packets due to error operation, and the port
enters forwarding state directly for not receiving configuration message for a long
time, no loop will be generated by enabling the loop protection.
By default, the switch does not enable BPDU protection or Root protection.

1.2.17 Enabling/Disabling MSTP on the Device

You can use the following command to enable MSTP on the device.
Perform the following configuration in system view.
Table 1-28 Enable/Disable MSTP on a device
Enable MSTP on a device.
Disable MSTP on a device.
Restore the disable state of MSTP, as defaulted.
Only if MSTP has been enabled on the device will other MSTP configurations take
effect. If MSTP is disabled on the device, MSTP cannot be enabled on a port.
By default, MSTP is disabled.

1.2.18 Enabling/Disabling MSTP on a Port

You can use the following command to enable/disable MSTP on a port. You may
disable MSTP on some Ethernet ports of a switch to spare them from spanning tree
calculation. This is a measure to flexibly control MSTP operation and save the CPU
resources of the switch.
MSTP can be enabled/disabled on a port through the following ways.
I. Configuration in system view
Perform the following configuration in system view.
Operation
1-33
Chapter 1 MSTP Region-configuration
Command
stp enable
stp disable
undo stp