User Manual

234 Understanding legacy password behavior
Is downgrading to
an older firmware
version (which does
not support Secure
Fabric OS) allowed
when security mode
is enabled?
Yes.
FirmwareDownload
does not prevent such
downgrades.
Yes n.a. Yes
Passwords used if
downgrading to an
older firmware for
the first time
When downgrading
firmware from v2.6.0
to v2.4.0 for the first
time, the default
passwords are used.
When downgrading
firmware from
v3.1.2 to v3.0.0 for
the first time, the
default passwords
are used.
n.a. If the switch had
v4.2.0 factory
installed, a
firmware
downgrade from
v4.2.0 to v4.0.0
uses the default
passwords.
When downgrading
to an older firmware
at subsequent times,
which passwords are
used?
Firmware
downgrades from
v2.6.0 to v2.4.0 use
the previous v2.4.0
passwords (the
passwords used
before the firmware
had been upgraded
to v2.6.0).
Firmware
downgrades from
v3.1.0 to v3.0.0 use
the previous v3.0.0
passwords (the
passwords used
before the firmware
had been upgraded
to v3.1.0).
Firmware
downgrades within
4.0.0 use the old
4.0.0 passwords.
Firmware
downgrades from
v4.2.0 to v4.0.0
use the previous
v4.0.0 passwords
(the passwords used
before the firmware
had been upgraded
to v4.2.0).
When downgrading
then upgrading
again, what
passwords are used?
When upgrading
firmware for a
second time, the old
v2.6.0 or v3.1.0
passwords are used
(the passwords used
before the firmware
had been
downgraded).
When upgrading
firmware for a
second time, the old
v2.6.0 or v3.1.0
passwords are used
(the passwords used
before the firmware
had been
downgraded).
When upgrading
firmware for a
second time, the old
passwords are used
(the passwords used
before the firmware
had been
downgraded).
When upgrading
firmware for a
second time, the old
passwords are used
(the passwords used
before the firmware
had been
downgraded). For a
4.0.0 to 4.2.0, use
the 4.0.0
passwords
Table 41 Password migration behavior during firmware upgrade and downgrade (continued)
Topic V2.4.0/2.6.0 V3.0.0/3.1.0 V4.0.0 V4.1.0 to v4.4.0