...
switchport trunk allowed vlan add <SVLAN>
exit
Пример конфигурации портов коммутатора:
SVLAN - 3000, CVLAN -101
interface TenGigabitEthernet1/0/1
description Customer
switchport mode customer
switchport customer vlan 3000 inner-vlan 101
exit
!
interface TenGigabitEthernet 1/0/24
description Uplink
switchport mode trunk
switchport trunk allowed vlan add 3000
exit