[rancid] Add Ciena to Rancid

[heasley]

Wed, Aug 12, 2015 at 09:25:50PM +0200, Alan McKinnon:
> On 12/08/2015 19:45, pradeep s wrote:
> > I would like to add ciena switch in rancid. I got stuck with no help. It
> > will be great if i get guidance to do that.
> > Thanks
> 
> 
> This is your second post and I assume you googled first looking for
> pre-written scripts that support those devices?
> 
> Seems like you found nothing so you will probably have to write the code
> yourself. Study all threads in this ML for about the past month, there
> is lots of info posted recently about how rancid hangs together.

I've taken that ML discussion to start a new section in the FAQ for
extending rancid.  S4 of http://www.shrubbery.net/rancid/FAQ