SUMMARY:correlation between NETDEV_# and network cards

From: Judith Reed <jreed_at_AppliedTheory.com>
Date: Mon, 21 Jul 1997 15:48:37 -0400

Thanks to the folks who replied. Consensus is that NETDEV_# entries
in /etc/rc.config are just environment variables. The order in
which they occur is the order you configured the controllers while using
netsetup.

NETDEV_# entries ARE in a one-to-one correlation with IF_CONFIG# entries.

One respondant noted that "The same physical interface may be assigned
to multiple NETDEV_#s to allow for aliases."

The most amusing (and true!!) response was from smt_at_corning.com, who noted:

"It's probably best for the sake of sanity to order them the same way
as the console firmware sees them."

Having nearly lost my sanity thru the course of a day spent with 4 systems,
each with 3 interfaces, each of whose interfaces are in a different physical
order in the enclosure, I heartily agree with this statement, though I have
not followed his fine advice!

A useful tidbit - to identify which interface is which, on DE500-AA controllers,
I do the following:

        ifconfig tu0 speed 100
        [run around and see which controller has a solid amber light lit]
        ifconfig tu0 speed 10
        [set the speed back to 10baseT, which is what we are currently using]

If you run at 100baseT, then you'd do the opposite. Do this for each
interface in the system, till you know which is where.

Judith Reed
jreed_at_appliedtheory.com
Received on Mon Jul 21 1997 - 22:02:43 NZST

This archive was generated by hypermail 2.4.0 : Wed Nov 08 2023 - 11:53:36 NZDT