Difference between auto-negotiate and FastFD

From: Allen Belk <allen.belk_at_usm.edu>
Date: Mon, 03 Apr 2000 14:21:36 -0500

Managers,
    I am running into a strange problem changing between FastFD and
auto-negotiate for ewa0_mode on an AlphaServer DS10. The NIC is reported as
follows while booting.

vmunix: tu1: DECchip 21143: Revision: 4.1
vmunix: tu1: auto negotiation capable device
vmunix: tu1 at pci0 slot 11
vmunix: tu1: DEC TULIP (10/100) Ethernet Interface, hardware address:

It is connected to a Cisco Catalyst 2900. When I set it to FastFD, the
network comes to a halt. When I set it to auto-negotiate it operates
flawlessly at 100BaseT: full duplex.

Other than the obvious, what is the difference in these two settings?

Thanks,

Allen Belk

 | Allen Belk, Systems Manager
 | Office of Technology Resources
 | University of Southern Mississippi
 | allen.belk_at_usm.edu 601.266.6013
Received on Mon Apr 03 2000 - 19:22:40 NZST

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