[c-nsp] Appletalk (don't laugh) through Cisco switch

[Robert Hayden]

If they are on different VLANs, then they will need to be 
appletalk-routed to reach each other, which you could accomplish by 
uplinking to a one-armed 2600 running an appletalk image and then 
running a trunked connection from the 2600 to the switch with each VLAN 
on a different sub interface.

To my knowledge, the routing functions in the 3550, even with EMI code, 
are not appletalk/IPX aware.

On the UW campus, we still have several departments dependent on 
appletalk and IPX.  Which we do have a sunset date on this support of 
June 2006, we still support it by trunking their VLANs to a central 6500 
and handle all the appletalk and IPX routing there.  When the time comes 
to "shut off" the service, it's just one device to remove and some 
trunking to clean up :)

Robert Hayden
Senior Network Engineer
University of Wisconsin Madison

Jeff Kell wrote:
> I have a most unusual situation here :-)  We have a <large govt entity> 
> specialized simulation lab on campus that is all-Macintosh.  We are not 
> routing Appletalk, don't need to, they only need it inside the lab.  The 
> hosts were hooked up to a 3550-EMI switch, nothing fancy.  Their 
> application fails.  According to "them":
> 
> "We have researched this problem and discovered that there is a
> known issue with running AppleTalk through a Managed CISCO Switch."
> 
> "The solution will be to connect all your computers to a non-cisco 
> managed switch."
> 
> Anyone ever heard of this?  I drew a blank searching TAC.  I thought 
> Cisco switches could do anything :-)
> 
> Jeff
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