Performing Mcheck Operation; Specifying Whether The Link Connected To A Port Is A Point-To-Point Link - H3C S5600 Series Operation Manual

Operation Manual – MSTP
H3C S5600 Series Ethernet Switches
Configure port priority for
the port
Changing port priority of a port may change the role of the port and put the port into
state transition.
A smaller port priority value indicates a higher possibility for the port to become the root
port. If all the ports of a switch have the same port priority value, the port priorities are
determined by the port indexes. Changing the priority of a port will cause spanning tree
recalculation.
You can configure port priorities according to actual networking requirements.
III. Configuration example
# Configure the port priority of GigabitEthernet 1/0/1 in MSTI 1 to be 16.
1) Perform this configuration in system view
<Sysname> system-view
[Sysname] stp interface GigabitEthernet 1/0/1 instance 1 port priority 16
2) Perform this configuration in Ethernet port view
<Sysname> system-view
[Sysname] interface GigabitEthernet 1/0/1
[Sysname-GigabitEthernet1/0/1] stp instance 1 port priority 16
1.4.9 Specifying Whether the Link Connected to a Port Is a Point-to-point
Link
Refer to
1.4.10 Enabling MSTP
Refer to

1.5 Performing mCheck Operation

Ports on an MSTP-enabled switch can operate in three modes: STP-compatible,
RSTP-compatible, and MSTP.
A port on an MSTP-enabled switch operating as an upstream switch transits to the
STP-compatible mode when it has an STP-enabled switch connected to it. When the
STP-enabled downstream switch is then replaced by an MSTP-enabled switch, 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.
To do...
stp [ instance
instance-id ] port priority
priority
Specifying Whether the Link Connected to a Port Is Point-to-point
Enabling MSTP.
Use the command...
1-41
Chapter 1 MSTP Configuration
Remarks
Required.
The default port priority is
128.
Link.