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6-18 Configuring FDDI Frame Translation Settings
OUI of 00-00-00 (indicating TCP/IP) and an IP protocol type identiÞer (08-00).
Possible options are Enabled (allow IP fragmentation Ð the default) or Disabled
(prevent IP fragmentation, and discard frames over 1518 bytes).
Translate all Non-Novell FDDI SNAP frames to
This selection box lets you set the translation parameters for non-Novell FDDI
SNAP frames. Possible options are Ethernet II (the default, which you should use
when bridging to most TCP/IP networks) or Ethernet SNAP (which you should
use when bridging to an AppleTalk environment on Ethernet).
Translate all Ethernet Raw frames to
This selection box lets you set the translation parameters for Ethernet Raw
(Ethernet 802.3) packets. Ethernet Raw frames are used on networks running the
IPX protocol on Novell NetWare versions prior to 3.12. Possible options are FDDI
802.2, FDDI SNAP (generally used when bridging to an AppleTalk environment
on an FDDI ring), or FDDI MAC (the default option, which translates the frame
into an FDDI MAC frame Ð which will not recognized as a data frame on an FDDI
ring, but will be recognized by a Cabletron Ethernet/FDDI bridge).
Translate all Novell FDDI SNAP frames to
This selection box lets you set the translation parameters for Novell IPX FDDI
SNAP frames. Possible options are Ethernet II (default, for most TCP/IP trafÞc),
Ethernet SNAP (AppleTalk networks), Ethernet 802.3 (some NetWare 3.12+ or
other networks running an ISO/OSI protocol stack), or Ethernet 802.3 Raw
(NetWare 3.11 and earlier networks).
Translate all Novell FDDI 802.2 frames to
This selection box lets you set the translation parameters for Novell IPX FDDI
802.2 frames. Possible options are Ethernet II, Ethernet SNAP, Ethernet 802.3
(default), or Ethernet 802.3 Raw.
Translate all Novell FDDI MAC frames to
This selection box lets you set the translation parameters for Novell IPX FDDI
MAC frames (i.e., received from a NetWare 3.11 or earlier network, and translated
into FDDI MAC frames). Possible options are Ethernet II (most TCP/IP
networks), Ethernet SNAP (AppleTalk Networks), Ethernet 802.3 (some NetWare
3.12+ and other networks running an ISO/OSI protocol stack), or Ethernet 802.3
Raw (default Ð NetWare 3.11 or earlier networks).
Auto Learn Novell Frame Translation
Some of CabletronÕs FDDI/Ethernet bridges can automatically learn the
appropriate frame translation type by the source address received at the Ethernet
interface. If this option is enabled, Novell IPX frames destined to a previously
learned source address will be translated to the appropriate frame type for that
address (as determined by its previously transmitted frames). If the destination
address is unknown, the default frame translation will be used for the frame.
Possible options are Enabled or Disabled.