H3C S3100-52P Operation Manual page 283

Operation Manual – MSTP
H3C S3100-52P Ethernet Switch
Follow these steps to configure the path cost for a port in Ethernet port view:
Enter system view
Enter Ethernet port view
Configure the path cost
for the port
Changing the path cost of a port may change the role of the port and put it in state
transition. Executing the stp cost command with the instance-id argument being 0 sets
the path cost on the CIST for the port.
III. Configuration example (A)
# Configure the path cost of Ethernet 1/0/1 in MSTI 1 to be 2,000.
1) Perform this configuration in system view
<Sysname> system-view
[Sysname] stp interface Ethernet 1/0/1 instance 1 cost 2000
2) Perform this configuration in Ethernet port view
<Sysname> system-view
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] stp instance 1 cost 2000
IV. Configuration example (B)
# Configure the path cost of Ethernet 1/0/1 in MSTI 1 to be calculated by the
MSTP-enabled switch according to the IEEE 802.1D-1998 standard.
1) Perform this configuration in system view
<Sysname> system-view
[Sysname] undo stp interface Ethernet 1/0/1 instance 1 cost
[Sysname] stp pathcost-standard dot1d-1998
2) Perform this configuration in Ethernet port view
<Sysname> system-view
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] undo stp instance 1 cost
[Sysname-Ethernet1/0/1] quit
[Sysname] stp pathcost-standard dot1d-1998
To do...
System-view
interface interface-type
interface-number
stp [ instance
instance-id ] cost cost
Use the command...
1-39
Chapter 1 MSTP Configuration
Remarks
—
—
Required
An MSTP-enabled switch
can calculate path costs
for all its ports
automatically.