IPX
Translation Rules
To determine whether IPX translation should be enabled or disabled on
VNswitch 900EF, FX, FF, and FA modules, you must understand the IPX translation rules:
If... |
And... |
Then... |
The module receives a Raw Ethernet
frame from an Ethernet LAN |
IPX translation is enabled on the
module |
The Raw Ethernet frames are translated and
are output to the FDDI backbone as SNAP frames. |
The module receives a Raw Ethernet frame
from an Ethernet LAN |
IPX translation is disabled on the
module |
The Raw Ethernet frames are not
translated and are output to the FDDI backbone as Raw Ethernet frames. |
The module receives a SNAP frame from an
FDDI backbone |
IPX translation is enabled on the
module |
The SNAP frames are translated and are
output to the Ethernet LAN as Raw Ethernet frames. |
The module receives a SNAP frame from an
FDDI backbone |
IPX translation is disabled on the
module |
The SNAP frames are not translated
to the Raw Ethernet frame type and are output to the Ethernet LAN as SNAP frames. |
Note: IPX translation incurs extra
overhead when forwarding frames. If possible, reconfigure the Ethernet-attached
nodes in this scenario to use SNAP encapsulation so that IPX translation is not
needed.
If all the nodes in the network number use raw encapsulation, then IPX translation is
not needed because Raw frames can be set over the FDDI network.
|