1-45To do... Use the command... RemarksEnable the VLAN-VPNtunnel function globally vlan-vpn tunnelRequiredThe VLAN-VPN tunnel function isdisabled by default.Enter Ethernet port view interface interface-typeinterface-numberMake sure that you enter the Ethernetport view of the port for which youwant to enable the VLAN-VPN tunnelfunction.Enable the VLAN VPNfunction for the Ethernetportvlan-vpn enableRequiredBy default, the VLAN VPN function isdisabled 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 service provider networksare trunk links.z If a fabric port exists on a switch, you cannot enable the VLAN VPN function on any port of theswitch.STP Maintenance ConfigurationIntroductionIn a large-scale network with MSTP enabled, there may be many MSTP instances, and so the status ofa port may change frequently. In this case, maintenance personnel may expect that log/trap informationis output to the log host when particular ports fail, so that they can check the status changes of thoseports through alarm information.Enabling Log/Trap Output for Ports of MSTP InstanceFollow these steps to enable log/trap output for ports of MSTP instance:To do... Use the command... RemarksEnter system view system-view —Enable log/trap outputfor the ports of aspecified instancestp [ instanceinstance-id ] portlogRequiredBy default, log/trap output is disabled for theports of all instances.Enable log/trap outputfor the ports of allinstancesstp portlog allRequiredBy default, log/trap output is disabled for theports of all instances.Configuration Example# Enable log/trap output for the ports of instance 1.
