JetStream 52-Port Gigabit Stackable L3 Managed Switch CLI Guide
Chapter 7 VLAN-VPN Commands
VLAN-VPN (Virtual Private Network) function, the implement of a simple and flexible Layer 2
VPN technology, allows the packets with VLAN tags of private networks to be encapsulated
with VLAN tags of public networks at the network access terminal of the Internet Service
Provider. And these packets will be transmitted with double-tag across the public networks.
7.1 dot1q-tunnel tpid
Description
The dot1q-tunnel tpid command is used to configure Global TPID of the
VLAN-VPN. To restore to the default value, please use the no dot1q-tunnel
tpid command.
Syntax
dot1q-tunnel tpid
tpid
no dot1q-tunnel tpid
Parameter
tpid
āā The value of Global TPID. It must be 4 Hex integers. By default, it is
8100.
Command Mode
Global Configuration Mode
Example
Configure Global TPID of the VLAN-VPN as 0x9100:
T3700G-52TQ(config)#dot1q-tunnel tpid 9100
7.2 switchport dot1q-tunnel mode nni
Description
The switchport dot1q-tunnel mode nni command is used to configure the
VPN up-link port. To close this VPN up-link port, please use the no
switchport dot1q-tunnel mode command. By default, no port has been
configured as the VPN up-link port.
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