Token Ring interface config on rs6000s

[Scott Holt]

I have two machines (a 540 and 930) which have token ring
interfaces in addition to the ethernet interfaces. I am trying to
set up a backend network between them to handle NIS and NFS
traffic. When I attempt to configure the tr0 interface on either
one, however, I get the following message:

ifconfig: error calling entry point for /etc/network/if_tr:Connection timed out

or


ifconfig: error calling entry point for /etc/network/if_tr:I/O error

I am not at all experienced with token ring, so, no, I am not sure the
physical network is set up correctly. I have the interfaces plugged
into ports 1 and 2 of and MAU and thats it.

Any clues would be much appreciated.

-Scott