Alcatel Carrier Internetworking Solutions Switch/Router 사용자 설명서

Page 29-13

Frames coming in from the Frame Relay network are not translated, but they are manipulated 
to be compatible for transport over the switch’s 

VBUS

. Incoming frames must contain 

RFC 1490

 

headers. The following standard 1490 frame types are supported:

• BPDU

• Ethernet 802.3

• Token Ring 802.5 (see Note below)

• FDDI (see Note below)

• IP Routed

• ARP/InARP Routed

• IPX Routed

• Compressed (which decompresses to one of the above supported formats)

Source Routing is not supported on Token Ring and 
FDDI frames.

All other frames types from the network are discarded at the physical port level.

Frames coming from the switch to the Frame Relay network are optionally translated if they 
are a non-Ethernet frame (e.g., 

FDDI

 and Token Ring) for a Bridged 

VLAN

. In this case, the 

frame is translated to an Ethernet frame before it is sent to the Frame Relay interface. Frames 
from non-Ethernet interfaces can also be sent as is without translation. This translation, which 
is called Default Bridging Mode, can be configured at the service or port level. In addition, 

BPDU

 and Routed frames (

IP

, 

ARP

, 

InARP

, 

IPX

) are accepted.