I have a decision to make and wondered what the communities take on it is;

My CCNA/CCNA:Security is due to expire in a few months, now I do not work with Cisco kit in any sense, the network in my current company is Juniper although I still wouldn't work with it as I am not a Network Engineer, however I do work alongside Network Engineers and interact regularly and review designs etc....
My role is becoming more design and security centric so have to understand networking to a good degree.. So..
My question is;
Is it worth renewing my CCNA?
The focus in my career is security; for the immediate future, that is infrastructure security, vulnerability assessments and designing solutions to mitigate risks in relation to ISO27001; eventually with a look to move in to Managerial Security.
I know there is no major value in holding the CCNA/CCNA:Security certification as it is primarily a technical cert for managing Cisco equipment.
The Network Engineers have recommended that if I do decide to renew I should look at the CCDA as a renewal path as it is more relevant as it is fairly open knowledge to be applied to any vendor
The main reason I want to renew is I put considerable effort (6 months) in to my original certification (score 959) but is it worth the time and cost to maintain it on my CV from a security point of view that could be potentially be used elsewhere?

Thoughts?

Thanks in advance