iiConfiguring BPDU Dropping ·········································································································1-37Configuring Digest Snooping ················································································································1-38Introduction····································································································································1-38Configuring Digest Snooping·········································································································1-38Configuring Rapid Transition ················································································································1-39Introduction····································································································································1-39Configuring Rapid Transition·········································································································1-41Configuring VLAN-VPN Tunnel·············································································································1-42Introduction····································································································································1-42Configuring VLAN-VPN tunnel ······································································································1-43MSTP Maintenance Configuration ········································································································1-44Introduction····································································································································1-44Enabling Log/Trap Output for Ports of MSTP Instance·································································1-44Configuration Example ··················································································································1-44Enabling Trap Messages Conforming to 802.1d Standard···································································1-44Displaying and Maintaining MSTP ········································································································1-45MSTP Configuration Example···············································································································1-45VLAN-VPN Tunnel Configuration Example ··························································································1-47