Thanks to all who replied. I am still working on this network problem.
You will probably hear from me again.
robert_at_gnsconsulting.com.au
"Dr. Tom Blinn, 603-884-0646" <tpb_at_doctor.zk3.dec.com>
Bryan Bahnmiller <bbahnmil_at_redwood.dn.hac.com>
Dejan Muhamedagic <dejan_at_yunix.co.yu>
"David A. Massaro, ITEC systems and networking" <MASSARDA_at_mail.suny.edu>
fhauers_at_rke.de
Girish Phadke <pgirish_at_maxisnet.com.my>
Maik Bachmann <maik_at_ironmaik.com>
Bryan Bahnmiller <bbahnmil_at_redwood.dn.hac.com>
"Raul Sossa S." <RSossa_at_datadec.co.cr>
My original question:
>
>
>I have a FDDI card an a 10/100Mb Ethernet card. There seems to be a
>problem with the transfer rate over both interfaces. I have searched the
>archives and found setting ewa0_mode can help for the 10/100MB card.
>
>Questions:
>Is the ewa0_mode always for the 10/100 card? (IF I set ewa0_mode would it
>be setting the 10/100 card or the FDDI?) Is there a mode for the FDDI?
>
On the 10/100 card:
ewa0_mode is for MODE, not transfer rate - AUI, BNC, Twisted-Pair
ewa0_... is ethernet only
We have found that DEC ethernet cards will not auto-negotiate with
Cisco switches, so we will set them manually to whatever the switch will
support:
twisted - half duplex 10
full - full duplex 10
fast - half duplex 100
fastfd - full duplex 100
One person said that auto negotiation was working fine for him.
>>> set ewa0_mode auto
Also, don't forget to use appropriate 'speed n' (like 'speed 200' for
fastfd, i.e. 100Mb full duplex) in the ifconfig command for the UTP
interface.
A user noted that the command
>>> sh config | more
will list the sytem configuration.
On the FDDI:
If you want to reconfig fddi which is really not neccsary you can use
/usr/sbin/fddi_config
the fddi part will be done by fwa0_... ( where fwa0_mode is senseless - u
normally use fwa0_protocols, and the family of addresses here )
OTher considerations:
What we also do for NFS is specify the size in the mount
command, like the following:
mount -o rsize=1024,wsize=1024 server:/dir /mnt
It helps to set the NFS to do UDP only. You may have to
set your FDDI packet size down to 1024 - like ethernet, if your FDDI is
bridged to ethernet somewhere. It will also help to increase your tcp
and udp send and receive buffers - see dxkerneltuner.
Ellen Davis
Ellen.Davis_at_uc.edu
Received on Fri Jan 29 1999 - 19:29:08 NZDT