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Chapter 27 Layer 2 Protocol Tunneling
GS1920 Series User’s Guide
228
Figure 167
L2PT Network Example
27.1.2.1
Layer 2 Protocol Tunneling Mode
Each port can have two layer 2 protocol tunneling modes, Access and Tunnel.
•
The Access port is an ingress port on the service provider's edge device
(1 or 2 in Figure 167 on
and connected to a customer switch
(A or B)
. Incoming layer 2 protocol packets
received on an access port are encapsulated and forwarded to the tunnel ports.
•
The Tunnel port is an egress port at the edge of the service provider's network and connected to
another service provider’s switch. Incoming encapsulated layer 2 protocol packets received on a
tunnel port are decapsulated and sent to an access port.
27.2
Configuring Layer 2 Protocol Tunneling
Click Advanced Application > Layer 2 Protocol Tunneling in the navigation panel to display the
screen as shown.
1
2
A
B
Service Provider's
Network
C
D
STP
STP
STP