Huawei Quidway S3900 Series Command Manual

Command Manual – MSTP
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 1 MSTP Configuration Commands
Huawei Technologies Proprietary
1-32
1.1.30 stp mcheck
Syntax
stp mcheck
View
System view, Ethernet port view
Parameter
None
Description
Use the stp mcheck command to perform the mCheck operation on the current port.
When a port on an MSTP-enabled upstream switch connects with an STP enabled
downstream switch, the port transits to the STP-compatible mode. But when the STP
enabled downstream switch is then replaced by an MSTP-enabled switch, the port
cannot automatically transit to the MSTP mode but 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, when a port on an RSTP-enabled upstream switch connects with an
STP-enabled downstream switch, the port transits to the STP-compatible mode. But
when the STP enabled downstream switch is then replaced by an MSTP-enabled
switch, the port cannot automatically transit to the MSTP mode but 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.
Related command: stp mode, stp interface mcheck.
Example
# Perform the mCheck operation for Ethernet1/0/1 port.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] interface Ethernet1/0/1
[Quidway-Ethernet1/0/1] stp mcheck
1.1.31 stp mode
Syntax
stp mode { stp | rstp | mstp }
undo stp mode

Huawei Quidway S3900 Series Specifications

General

Brand	Huawei
Model	Quidway S3900 Series
Category	Switch
Language	English