From the difference in dumps provided, it's pretty clear the command isn't getting echoed back so the first place I'd look is Net::Telnet->cmd_remove_mode(). While this may (or may not) be needed on one system (i.e., Fedora) it may (or may not) be needed on another (i.e., CentOS). I've seen quirks on Cisco routers where different modes / prompts need to be set to let Net::Telnet::Cisco work with them.

In reply to Re: Command sent via Net::Telnet is not getting logged in CentOS. However, the same is getting logged in Fedora 20 by VinsWorldcom
in thread Command sent via Net::Telnet is not getting logged in CentOS. However, the same is getting logged in Fedora 20 by shoundic

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