3com MSR 20-20 참조 매뉴얼

C

HAPTER

 38: MSTP C

ONFIGURATION

 C

OMMANDS

■

Configured in system view, the setting is effective for the device globally; 
configured in Ethernet interface view, the setting is effective on the current 
port only; configured in port group view, the setting is effective on all the ports 
in the port group.

■

To control MSTP flexibly, you can disable the MSTP feature for certain ports so 
that they will not take part in spanning tree computing and thus to save the 
device’s CPU resources.

■

After you enable MSTP, the device determines whether to work in 
STP-compatible mode, in RSTP mode or in MSTP mode according to your MSTP 
work mode setting. After MSTP is disabled, the device becomes a transparent 
bridge.

■

After being enabled, MSTP dynamically maintains spanning tree status of the 
corresponding VLANs based the received configuration BPDUs. After being 
disabled, it stops maintaining the spanning tree status.

■

Refer to “Link Aggregation Configuration Commands” on page 473 for 
information about port groups.

# Enable the MSTP feature globally.

<Sysname> system-view

[Sysname] stp enable 

# Disable MSTP on port Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] stp disable 

System view

None

Use the stp bpdu-protection command to enable the BPDU guard function for 
the device.

Use the undo stp bpdu-protection command to disable the BPDU guard 
function for the device.

By default, the BPDU guard function is disabled.

# Enable the BPDU guard function for the device.