I have Jabber misha[at]weba.ru if need private conversation.
More prefer solving equipment issue in public.
Make config backups manually so exhaustive.
This method is very simple - one string in script for one device, and very secure. Only one key-pair for each backup-server, no additional software, keys with 8192 bits works Interesting feature - SSH-Client in Ex460 work correctly with manual ...
How to reproduce:
I have Extreme Summit x460-48x switch with XOS 15.3.3.5 (patch1-4) with ssh-module.
I configured user 'backuper' for key-based auth in ssh:
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create account admin backuper encrypted ""
create sshd...
