hi every body!
Cisco 3750 switches provide fallback bridging to transparent non ip protocols such as ipx because cef only supports ip.
My question is can switch use layer 3 engine(router) to switch non-ip packets such as ipx ?
thanks a lot!
SNA, ah good old memories, yeah right...
Two options which are not supported in switches. STUN (Serial Tunneling) or DLSW (Data Link Switching).
You need a good old router.
Never had the pleasure to play with LAT but I'm sure you also need a router for it.
The reason the 3750 does not provide IPX support is not due to the CEF/IP dependency. It's due to lacking the required ASIC to perform this function.
As Jon stated, Cisco provides a line that support IPX (Catalyst 6500) but even within that line, the support is done in software - not in hardware (ASICs) which can result on degraded IPX performance.
If you have an IPX network (I'm sure you don't - you are just hitting those books hard and keeping us in line :)), I recommend going with a regular router with Enterprise software and have this router perform the IPX routing in your network. IPX is a dead protocol and there isn't much testing done on it.
Some L3 switches can route IPX but the 3750 is not one of them. There is no support for IPX other than the use of fallback bridging.