The Mcheck Configuration - H3C S7500 Series Operation Manual

Operation Manual – MSTP
H3C S7500 Series Ethernet Switches
To do ...
Enter system view
Enter Ethernet port
view
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
regeneration.
You can configure port priorities according to actual networking requirements.
III. Configuration example
# Configure the port priority of Ethernet2/0/1 in MSTI 1 to be 16.
1) Configure in system view.
<H3C> system-view
[H3C] stp interface ethernet2/0/1 instance 1 port priority 16
2) Configure in Ethernet port view.
<H3C> system-view
[H3C] interface ethernet2/0/1
[H3C-Ethernet2/0/1] stp instance 1 port priority 16
1.3.9 Point-to-point Link-Related Configuration
Refer to section
1.3.10 MSTP Configuration
Refer to section

1.4 The mCheck Configuration

As mentioned previously, 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.
Use the command ...
system-view
interface interface-type
interface-number
stp [ instance instance-id ]
port priority priority
1.2.12 "Point-to-point Link-Related
1.2.13 "MSTP Configuration".
1-29
Chapter 1 MSTP Configuration
Remarks
—
—
Required.
The default port priority is 128.
Configuration".