1-45
To do… Use the command… Remarks
Enter Ethernet port view interface interface-type
interface-number
Make sure that you enter the Ethernet port
view of the port for which you want to enable
the VLAN-VPN tunnel function.
Enable the VLAN VPN
function for the Ethernet
port
vlan-vpn enable
Required
By default, the VLAN VPN function is
disabled on all ports.
z The VLAN-VPN tunnel function can be enabled on STP-enabled devices only.
z To enable the VLAN-VPN tunnel function, make sure the links between operator’s networks are
trunk links.
STP Maintenance Configuration

Introduction

In a large-scale network with MSTP enabled, there may be many MSTP instances, and so the status of
a port may change frequently. In this case, maintenance personnel may expect that log/trap information
is output to the log host when particular ports fail, so that they can check the status changes of those
ports through alarm information.

Enabling Log/Trap Output for Ports of MSTP Instance

Follow these steps to enable log/trap output for ports of MSTP instance:
To do… Use the command… Remarks
Enter system view system-view —
Enable log/trap output for the
ports of a specified instance stp [ instance instance-id ]
portlog
Required
By default, log/trap output is
disabled for the ports of all
instances.
Enable log/trap output for the
ports of all instances stp portlog all
Required
By default, log/trap output is
disabled for the ports of all
instances.

Configuration Example

# Enable log/trap output for the ports of instance 1.
<device> system-view
[device] stp instance 1 portlog
# Enable log/trap output for the ports of all instances.
<device> system-view