Downgraded a 9396S from 8.2 down to 6.2(23);
There was an exception which I corrected
MDS-A-1# show incompatibility-all system m9300-s1ek9-mz.6.2.23.bin
Checking incompatible configuration(s)
The following configurations on active are incompatible with the system image
1) Service : flogi , Capability : CAP_FEATURE_FLOGI_SCALE_ENABLE
Description : flogi scale enabled on this switch
Capability requirement : STRICT
Enable/Disable command :
2) Service : flogi , Capability : CAP_FEATURE_FLOGI_QUIESCE_TIMEOUT
Description : flogi quiesce timeout enabled on this switch
Capability requirement : STRICT
Enable/Disable command : flogi quiesce timeout 0
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Then the downgrade worked ok, but I can no more login with putty; web interface (device manager is however working)
User Access Verification
MDS-A-1 login: admin
Password:
You are required to change your password immediately (root enforced)
Changing password for admin.
(current) UNIX password:
New UNIX password:
/usr/share/crack
User Access Verification
MDS-A-1 login: admin
Password:
Login incorrect