Command Manual (For Soliton) – MSTP
H3C S3100 Series Ethernet Switches
Chapter 1 MSTP Configuration Commands
1-40
The switches that are not root bridges in an MST region adopt the maximum hop
settings of the root bridge.
Examples
# Set the maximum hop count of the current MST region to 35.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] stp max-hops 35
1.1.35 stp mcheck
Syntax
stp mcheck
View
System view, Ethernet port view
Parameters
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 operates in the STP-compatible mode automatically. 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 still 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 operates in 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-compatible mode by performing the mCheck operation on the port.
Related commands:
stp mode
,
stp interface mcheck
.
Examples
# Perform the mCheck operation on Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1