Alcatel Carrier Internetworking Solutions Switch/Router 사용자 설명서

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Autoencapsulation is a technique employed by AutoTracker software to learn the protocol 
and encapsulation type used by a source MAC address and automatically translate frames 
bound to that MAC address to the appropriate encapsulation type.

Normally all devices attached to a switch port receive frames translated according to the trans-
lation options defined for that port. However, some devices attached to the same port may 
require different frame formats.

For example, one workstation may support IPX 802.3 frames and another may support IPX 
SNAP frames. The switch port may be configured to translate incoming IPX 802.3 frames to 
LLC frames, which would not satisfy either of the workstations. If autoencapsulation is on, 
then the switch would translate frames for the first workstation to IPX 802.3 and frames for 
the second workstation to IPX SNAP. The translation setting for the port is overridden for 
those ports that require a special translation.

Autoencapsulation operates only on learned unicast frames. It does not work for broadcast, 
multicast, or unlearned unicast frames. For this reason it is recommended only for ports 
attached to client devices. It is not recommended for ports attached to servers due to high 
volume of broadcast traffic on such a connection.

In addition, autoencapsulation is not supported for Banyan Vines frames. It operates only on 
IP and IPX frames.

To turn on autoencapsulation type the following at the prompt:

To turn off autoencapsulation type the following at the prompt: