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will).
The user network is considerably independent. When the ISP internet is upgrading
their network, the user networks do not have to change their original configuration.
Detailed description on the application and configuration of dot1q-tunnel will be provided in this
section.
20.2.2 Dot1q-tunnel Configuration
Configuration Task Sequence of Dot1q-Tunnel:
1. Configure the dot1q-tunnel function on port
2. Configure the global protocol type (TPID)
1. Configure the dot1q-tunnel function on port
Command
Port mode
dot1q-tunnel enable
no dot1q-tunnel enable
2. Configure the global protocol type (TPID)
Command
Global mode
dot1q-tunnel tpid
{0x8100|0x9100|0x9200|<1-65535>}
20.2.3 Typical Applications of the Dot1q-tunnel
Scenario:
Edge switch PE1 and PE2 of the ISP internet forward the VLAN200~300 data between CE1
and CE2 of the client network with VLAN3. The port1 of PE1 is connected to CE1, port10 is
connected to public network, the TPID of the connected equipment is 9100; port1 of PE2 is
connected to CE2, port10 is connected to public network.
Configuration
Item
VLAN3
Explanation
Enter/exit the dot1q-tunnel mode on the
port.
Explanation
Configure the global protocol type.
Configuration Explanation
Port1 of PE1 and PE2.
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Troubleshooting
