Operation Manual – VLAN-VPNH3C S3100 Series Ethernet Switches Chapter 3 VLAN Mapping Configuration3-23.1.2 VLAN Mapping ImplementationYou can configure VLAN mapping rules for each port of an S3100 series switch. Withthe VLAN mapping function enabled on a port, the port maps private network VLANtags to the corresponding public network VLAN tags for packets to be forwarded to thepublic network and performs the converse operation for the packets to be forwarded tothe destination private network.3.2 Configuring VLAN Mapping3.2.1 VLAN Mapping Configuration Task ListTable 3-1 VLAN mapping configuration task listTask DescriptionEnabling the VLAN Mapping FunctionBased on a Global VLAN Mapping RuleEnabling the VLAN Mapping FunctionBased on a Port-level VLAN MappingRuleUse either of the tasksCaution:The VLAN mapping function and the VLAN VPN function are mutually exclusive on thesame port.3.2.2 Enabling the VLAN Mapping Function Based on a Global VLAN MappingRuleTable 3-2 Enable the VLAN mapping function based on a global VLAN mapping ruleOperation Command DescriptionEnter system view system-view —Define a VLAN mappingrulevlan-mapping vlanold-vlan-id remarknew-vlan-idRequiredBy default, no VLANmapping rule is defined.Enter Ethernet port view interface interface-typeinterface-number —