Example for Configuring Sub-interfaces to Implement Inter-VLAN Communication - AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S CLI-based Typical Configuration Examples - Huawei
switch - inter vlan , sub interfaces - Network Engineering Stack Exchange
Solved: Subinterfaces and VLANS - Cisco Community
router - Physical Interface VS Multipoint Subinterface in Cisco Frame Relay - Server Fault