Hình 6: Dịch vụ HSI triển khai trên L2 Switch chỉ hỗ trợ dot1Q
Đối với trường hợp Switch không hỗ trợ QinQ, UPE sẽ chèn 1 VLAN tag ngẫu nhiên vào trước gói tin để đảm bảo dữ liệu truyền trong MAN-E là QinQ. Khi gói tin
lên đến sub-interface của PE-AGG để đi lên BRAS thì PE-AGG sẽ tách VLAN tag ngoài đó và đóng gói đúng S-VLAN dành cho dịch vụ HSI (100 đến 599) vào gói tin.
UPE:# # interface GigabitEthernet1/0/4 description ** Connect to LSW1 ** undo shutdown mode user-termination # interface GigabitEthernet1/0/4.11
description ** Connect to LSW1- HSI ** qinq stacking vid 21 to 50
mpls l2vc 123.29.30.1 1102710000 tunnel-policy to_pe-agg1
mpls l2vc 123.29.30.2 1102710001 tunnel-policy to_pe-agg2 secondary # interface GigabitEthernet1/0/5 description ** Connect to LSW2 ** undo shutdown mode user-termination # interface GigabitEthernet1/0/5.11
description ** Connect to LSW2- HSI ** qinq stacking vid 51 to 80
mpls l2vc 123.29.30.1 1102710010 tunnel-policy to_pe-agg1
#
PE-AGG-1
#
interface GigabitEthernet2/0/8 description ** Connect to BRAS ** undo shutdown
mode user-termination #
interface GigabitEthernet2/0/8.10
description ** Connect to UPE-LSW1- HSI ** control-vid 10 qinq-termination
qinq termination l2 symmetry
qinq termination pe-vid 100 ce-vid 21 to 50
mpls l2vc 123.29.30.27 1102710000 tunnel-policy to_upe #
interface GigabitEthernet2/0/8.11
description ** Connect to UPE-LSW2- HSI ** control-vid 11 qinq-termination
qinq termination l2 symmetry
qinq termination pe-vid 100 ce-vid 51 to 80
mpls l2vc 123.29.30.27 1102710010 tunnel-policy to_upe
PE-AGG-2
#
description ** Connect to BRAS ** undo shutdown mode user-termination # # interface GigabitEthernet2/0/8.10
description ** Connect to UPE-LSW1- HSI ** control-vid 10 qinq-termination
qinq termination l2 symmetry
qinq termination pe-vid 100 ce-vid 21 to 50
mpls l2vc 123.29.30.27 1102710001 tunnel-policy to_upe # (adsbygoogle = window.adsbygoogle || []).push({});
interface GigabitEthernet2/0/8.11
description ** Connect to UPE-LSW2- HSI ** control-vid 11 qinq-termination
qinq termination l2 symmetry
qinq termination pe-vid 100 ce-vid 51 to 80
mpls l2vc 123.29.30.27 1102710011 tunnel-policy to_upe