PCI Token Ring Administrator's Guide

Installing Token Ring
Step 2: Installing Token Ring Hardware
Chapter 130
question about the driver’s presence, or if you are not certain that the
replacement card is identical to the existing card, you can use ioscan
together with rad to investigate.
NOTE If the PCI Token Ring card has a universally administered MAC address
configured when the online replacement is performed, the new card’s
universally administered MAC address will be used. SNA users who plan
to use online replacement with PCI Token Ring card on L-Class, N-Class,
and Superdome platforms will be affected. Online replacement will
require changing the configuration file for SNAplus2 to use the new
universally administered MAC address.