Configuring Layer 2 Protocol Tunneling - ZyXEL Communications GS1920v2 Series User Manual

To emulate a point-to-point topology between two customer switches at different sites, such as
you can enable protocol tunneling on edge switches
LACP or UDLD (UniDirectional Link Detection).
L2PT Network Example
Fig ure 190
28.1.2.1 L a ye r 2 Pro to c o l T unne ling Mo de
Each port can have two layer 2 protocol tunneling modes,
• The
Ac c e ss
263) and connected to a customer switch (
access port are encapsulated and forwarded to the tunnel ports.
• The
T unne l
another service provider's switch. Incoming encapsulated layer 2 protocol packets received on a
tunnel port are decapsulated and sent to an access port.
28.2 C o nfig uring L a ye r 2 Pro to c o l T unne ling
Click
Adva nc e d Applic a tio n
as shown.
Chapter 28 Layer 2 Protocol Tunneling
port is an ingress port on the service provider's edge device (
port is an egress port at the edge of the service provider's network and connected to
>
L a ye r 2 Pro to c o l T unne ling
GS1920v2 Series User's Guide
and for PAgP (Port Aggregation Protocol),
1 2
and
Ac c e ss
or ). Incoming layer 2 protocol packets received on an
A B
in the navigation panel to display the screen
263
A
.
T unne l
or in Figure 190 on page
1 2
and ,
B