Chapter 41 Layer 2 Protocol Tunneling
XGS2220 Series User’s Guide
272
spanning tree, even though switch
A
is not directly connected to switches
B
,
C
and
D
. Topology change
information can be propagated throughout the service provider’s network.
To emulate a point-to-point topology between two customer switches at different sites, such as
A
and
B
,
you can enable protocol tunneling on edge switches
1
and
2
for PAgP (Port Aggregation Protocol),
LACP or UDLD (Uni-Directional Link Detection).
Figure 192
L2PT Network Example
41.1.2.1 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
) 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.
41.2 Configuring Layer 2 Protocol Tunneling
Click
SWITCHING
>
Layer 2 Protocol Tunneling
in the navigation panel to display the screen as shown.
Содержание XGS2220 Series
Страница 27: ...27 PART I User s Guide ...
Страница 56: ...56 PART II Technical Reference ...
Страница 154: ...Chapter 20 Cloud Management XGS2220 Series User s Guide 154 Figure 105 SYSTEM Cloud Management ...
Страница 309: ...Chapter 45 Multicast XGS2220 Series User s Guide 309 Figure 226 MVR Group Configuration Example View ...
Страница 467: ...Chapter 68 Policy Rule XGS2220 Series User s Guide 467 Figure 343 Policy Example ...
Страница 555: ...Chapter 78 MAINTENANCE XGS2220 Series User s Guide 555 Figure 413 MAINTENANCE Tech Support Download ...
Страница 562: ...Chapter 79 Networked AV Mode XGS2220 Series User s Guide 562 Figure 418 SYSTEM Cloud Management ...
Страница 616: ...616 PART III Troubleshooting and Appendices ...