Mstp Maintenance Configuration; Introduction; Enabling Log/Trap Output For Ports Of Mstp Instance; Configuration Example - 3Com 5500-EI PWR Install Manual

To do...
Enable the VLAN-VPN
tunnel function globally
Enter Ethernet port view
Enable the VLAN VPN
function for the Ethernet
port
The VLAN-VPN tunnel function can be enabled on STP-enabled devices only.
To enable the VLAN-VPN tunnel function, make sure the links between service provider networks
are trunk links.
If a fabric port exists on a switch, you cannot enable the VLAN VPN function on any port of the
switch.

MSTP 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...
Enter system view
Enable log/trap output
for the ports of a
specified instance
Enable log/trap output
for the ports of all
instances

Configuration Example

# Enable log/trap output for the ports of instance 1.
Use the command...
vlan-vpn tunnel
interface interface-type
interface-number
vlan-vpn enable
Use the command...
system-view
stp [ instance
instance-id ] portlog
stp portlog all
1-45
Remarks
Required
The VLAN-VPN tunnel function is
disabled by default.
Make sure that you enter the Ethernet
port view of the port for which you
want to enable the VLAN-VPN tunnel
function.
Required
By default, the VLAN VPN function is
disabled on all ports.
Remarks
—
Required
By default, log/trap output is disabled for the
ports of all instances.
Required
By default, log/trap output is disabled for the
ports of all instances.