H3C Technologies H3C S12500 Series Switches - Manual (Page 98)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enable the spanning tree feature
globally.
stp enable
By default, the spanning tree
feature is globally enabled.
3. Enter interface view or port group
view.
• Enter Ethernet interface view
or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
4. Enable the spanning tree feature for
the port or group of ports.
stp enable
Optional.
By default, the spanning tree
feature is enabled for all ports.
Enabling the spanning tree protocol in PVST mode
In the PVST mode, make sure the spanning tree feature is enabled globally and on the desired VLANs
and ports.
To enable the spanning tree protocol in PVST mode:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable the spanning tree feature
globally.
stp enable
By default, the spanning tree
feature is globally enabled.
3. Enable the spanning tree feature for
the desired VLANs.
stp vlan vlan-list enable
By default, PVST is enabled for
all VLANs.
4. Enter interface view or port group
view.
• Enter Ethernet interface view
or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
5. Enable the spanning tree feature for
the port or group of ports.
stp enable
Optional.
By default, the spanning tree
feature is enabled for all ports.
Performing mCheck
If a port on a device running MSTP, RSTP, or PVST connects to an STP device, this port will automatically
transit to the STP mode. However, it cannot automatically transit back to the original mode when:
• The STP device is shut down or removed.