Both boxes use AFCP,  which is not routable.  You should verify that the
transceivers on the DTC's have SQE enabled on them.


"J. Patrick Lindley" wrote:
>
> Other than the obvious construction differences, are there any
> communications differences between these two types of DTCs?  We are
> using Cisco routers to bridge the HP3000 DTC traffic.  We can get the
> DTC48s to connect to the HP3000 and take a download over an ISDN backup
> circuit connection, but can't seem to get the DTC72 to do the same over
> a similarly configured ISDN backup circuit.  Each of the DTCs are at
> different physical locations in our network.
>
> However, both of these DTCs work fine over our T1 main circuits to these
> branch locations using the same routers that are being used to control
> the ISDN backup circuits.
>
> When the DTC72 is connected to the ISDN circuit through the Cisco
> router, the router displays "badly formed Ethernet packet" (or similar
> verbage).  This message continuously scrolls through the logs until the
> DTC72 is turned off or disconnected from the router.
>
> I believe the protocol used by the DTCs is something called "AFCP"?  Is
> that right?  Does it matter?  Is there any information about Cisco
> products vs. HP DTCs that I should be aware of?  Is the DTC72 using a
> routed protocol instead of brided protocol?  What about the DTC48?
>
> Help!
>
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