Layer-2 Protocol Tunneling Mode; Configuring Layer 2 Protocol Tunneling - ZyXEL Communications GS3700 Series User Manual

Figure 158 L2PT Network Example
A
STP

27.1.1 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
page 242) 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.
Chapter 27 Layer 2 Protocol Tunneling
STP
1
Service Provider's
Network
GS3700/XGS3700 Series User's Guide
242
B
STP
2
C
D
Figure 158 on