Specifying Whether The Link Connected To A Port Is A Point-To-Point Link; Enabling Mstp; Performing Mcheck Operation; Configuration Prerequisites - 3Com WX3000 Series Operation Manual

[device] stp interface GigabitEthernet1/0/1 instance 1 port priority 16
2) Perform this configuration in Ethernet port view
<device> system-view
[device] interface GigabitEthernet1/0/1
[device-GigabitEthernet1/0/1] stp instance 1 port priority 16

Specifying Whether the Link Connected to a Port Is a Point-to-point Link

Refer to Specifying Whether the Link Connected to a Port Is Point-to-point

Enabling MSTP

Refer to Enabling

Performing mCheck Operation

Ports on an MSTP-enabled device can operate in three modes: STP-compatible, RSTP-compatible,
and MSTP.
A port on an MSTP-enabled device operating as an upstream device transits to the STP-compatible
mode when it has an STP-enabled device connected to it. When the STP-enabled downstream device
is then replaced by an MSTP-enabled device, the port cannot automatically transit to the MSTP mode.
It remains in the STP-compatible mode. In this case, you can force the port to transit to the MSTP mode
by performing the mCheck operation on the port.
Similarly, a port on an RSTP-enabled device operating as an upstream device turns to the
STP-compatible mode when it has an STP-enabled device connected to it. When the STP enabled
downstream device is then replaced by an MSTP-enabled device, the port cannot automatically transit
to the RSTP mode. It remains in the STP-compatible mode. In this case, you can force the port to transit
to the RSTP mode by performing the mCheck operation on the port.

Configuration Prerequisites

MSTP runs normally on the device.

Configuration Procedure

You can perform the mCheck operation in the following two ways.
Perform the mCheck operation in system view
Follow these steps to perform the mCheck operation in system view:
To do...
Enter system view
Perform the mCheck operation
Perform the mCheck operation in Ethernet port view
Follow these steps to perform the mCheck operation in Ethernet port view:
MSTP.
system-view
stp [ interface interface-list ] mcheck
Use the command...
1-34
Link.
Remarks
—
Required