Vlan-Vpn Configuration Example; Network Requirements; Network Diagram - Huawei Quidway S3900 Series Operation Manual

Operation Manual – VLAN VPN
Quidway S3900 Series Ethernet Switches-Release 1510
Caution:
You can execute the vlan-vpn enable or vlan-vpn uplink enable command for a
port, but do not execute both of the two commands for a port.
When the TPID is set to the default value 0x8100, a port can serve as an uplink port
no matter whether the vlan-vpn uplink enable command is configured on this port
or not. However, if the TPID is not set to 0x8100, you must enable the vlan-vpn
uplink enable command on the port if you want to make the port an uplink port.

1.5 VLAN-VPN Configuration Example

1.5.1 Network requirements

Switch A and Switch C are S3900 series switches. Switch B is a switch comes
from another vendor, which uses the TPID value of 0x9100.
Two networks are connected to the Ethernet1/0/1 ports of Switch A and Switch C
respectively.
Switch B only permits packets of VLAN 10.
It is required that packets of VLANs other than VLAN 10 can be exchanged
between the networks connected to Switch A and Switch C.

1.5.2 Network diagram

Switch A Switch A Switch A Switch A
Switch B Switch B Switch B Switch B
Switch C Switch C Switch C Switch C
Figure 1-4 Network diagram for VLAN-VPN
E1/0/1 (access VLAN 10, VLAN VPN port) E1/0/1 (access VLAN 10, VLAN VPN port)
E1/0/2 (trunk permit VLAN 10 and TPID is 0x9100) E1/0/2 (trunk permit VLAN 10 and TPID is 0x9100)
E3/1/2 (trunk permit VLAN 10 and TPID is 0x9100) E3/1/2 (trunk permit VLAN 10 and TPID is 0x9100)
E3/1/1 (trunk permit VLAN 10 and TPID is 0x9100) E3/1/1 (trunk permit VLAN 10 and TPID is 0x9100)
E1/0/2 (trunk permit VLAN 10 and TPID is 0x9100) E1/0/2 (trunk permit VLAN 10 and TPID is 0x9100)
E1/0/1 (access VLAN 10, VLAN VPN port) E1/0/1 (access VLAN 10, VLAN VPN port)
Huawei Technologies Proprietary
1-6
Chapter 1 VLAN-VPN Configuration