Alcatel Carrier Internetworking Solutions Omni Switch/Router - Manual (Page 524)

The Switch Menu
Page 18-28
♦ Important Note ♦
The IP Translation Options allow only SNAP ( s ). The
IPX translations allow SNAP ( s ), and LLC ( 2 ) for all
frame types. The Ethertype ( e ) translation is not
allowed for FDDI. The Ethernet 802.3 translation ( 3 ) is
allowed only on incoming Ethernet 802.3 frames, which
referred to as “FDDI raw.”
The fddidef command will accept your input and will
not return an error message if you try to change an IPX
translation option to Ethertype or Ethernet 802.3.
However, that does not mean that the IPX frames are
being translated to Ethertype or 802.3. Regardless of
what the
fddidef screen displays, switch software does
not translate FDDI frames to Ethertype for any frame or
to 802.3 for any frame accept incoming 802.3.
Default Token Ring Translations
The trdef command allows you to set up default translations for all Token Ring ports. To do
so:
1. Enter the trdef command at the system prompt. The following screen displays:
This will reset the default translations for TR media to a new value.
All TR ports currently set to default will inherit these new translation options.
It will thenreset the forwarding table translation options for all addresses learnt on
those ports to those port defaults.
Do you want to do this? (no):
2. Press Y at the Do you wish to do this? prompt to indicate that you want to change the
defaults. The current settings for FDDI ports are displayed:
Translation Options:
1
IP Ethertype -> Ethertype
2 IP IEEE 802 SNAP -> Ethertype
3 IPX ETHERNET_II -> 802.3
4 IPX ETHERNET_802.3 -> 802.3
5 IPX ETHERNET_802.3/FDDI/TOKEN_RING -> 802.3
6 IPX ETHERNET_SNAP/FDDI_SNAP/TOKEN-RING_SNAP -> 802.3
There are six frame types for which you can set translation options. The frame type in the
left column indicates the incoming frame, and the frame type in the right column (after
the
-> ) indicates the outgoing frame. You can configure the outgoing frame type for each
incoming frame.