Upgrade S-Series to firmware 8.63.05
This release adds the following algorithm, which uses a 2048-bit key: diffie-hellman-group14-sha1
This change applies to both the SSH Server (i.e., SSH from somewhere else to the switch) and SSH Client (i.e., SSH from the switch to somewhere else). Workaround:
Set the dh-group to weaker groups on the EXOS to get things working with S-Series
# configure ssh2 dh-group minimum 1
Notice: The configured key exchange algorithm(s), DH group 1, is/are weaker than what is recommended.