R21xx-HP FlexFabric 11900 Layer 2 LAN Switching Command Reference

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when Device C receives an STP BPDU transparently transmitted by Device B, the receiving port transits to
the STP mode. If you configure Device B to run RSTP or MSTP with Device C, perform mCheck operations
on the ports that connect Device B and Device C.
The device operates in STP, RSTP, or MSTP mode depending on the spanning tree mode setting.
The stp mcheck command is effective only when the device operates in MSTP or RSTP mode.
When the setting is configured in Layer 2 Ethernet interface view, it takes effect only on that interface.
When the setting is configured in Layer 2 aggregate interface view, it takes effect only on the aggregate
interface.
When the setting is configured on a member port in an aggregation group, it takes effect only after the
port leaves the aggregation group.
Examples
# Perform mCheck on Ten-GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] stp mcheck
Related commands
• stp global mcheck
• stp mode
stp mode
Use stp mode to configure the spanning tree operating mode.
Use undo stp mode to restore the default.
Syntax
stp mode { mstp | rstp | stp }
undo stp mode
Default
A spanning tree device operates in MSTP mode.
Views
System view
Predefined user roles
network-admin
Parameters
mstp: Configures the spanning tree device to operate in MSTP mode.
rstp: Configures the spanning tree device to operate in RSTP mode.
stp: Configures the spanning tree device to operate in STP mode.
Usage guidelines
MSTP mode is compatible with RSTP mode, and RSTP mode is compatible with STP mode.