PC1 192.168.1.10 ---------- TRUNK1                                                     TRUNK1------ PC3 192.168.1.11

                                     VLAN SWITCH 1    TRUNK6------TRUNK6 VLAN SWITCH 1 
 PC2 192.168.1.10 ---------- TRUNK2                                                     TRUNK2------ PC4 192.168.1.11