Owner's Manual

Using FlexAddress 257
9 What happens if a chassis with a single CMC is downgraded with firmware
prior to 1.10?
• The FlexAddress feature and configuration is removed
from the chassis.
• The feature card used to activate the feature on this chassis is
unchanged, and remains bound to the chassis. When this chassis’s
CMC firmware is subsequently upgraded to 1.10 or later, the
FlexAddress feature is reactivated by reinserting the original feature
card (if necessary), resetting CMC (if feature card was inserted after
firmware upgrade was completed), and reconfiguring the feature.
10 What happens if you are replacing a CMC unit with one that has firmware
prior to 1.10 in a chassis with redundant CMCs?
In a chassis with redundant CMCs, if you are replacing a CMC unit with
one that has firmware prior to 1.10, the following procedure must be
used to ensure the current FlexAddress feature and configuration is NOT
be removed.
a Ensure the active CMC firmware is always version 1.10 or later.
b Remove the standby CMC and insert the new CMC in its place.
c From the Active CMC, upgrade the standby CMC firmware
to 1.10 or later.
NOTE: If you do not update the standby CMC firmware to 1.10 or later and a failover
occurs, the FlexAddress feature is not configured and you need to reactivate and
reconfigure the feature.
11 The SD card was not in the chassis when I executed the deactivation
command on the FlexAddress. How do I recover my SD card now?
The issue is that the SD card cannot be used to install FlexAddress on
another chassis if it was not in CMC when FlexAddress was deactivated.
To recover use of the card, insert the card back into a CMC in the chassis
that it is bound to, reinstall FlexAddress, and then deactivate FlexAddress,
again.