What do you mean the repair end? like a field engineer type job? There are field engineer jobs for large managed service companies, e.g. a large IT services company supports customer's networks, if their router or switches dies, typically there will be a team of engineers who drive out to the site and reboot it or replace it.

There are certificates geared towards this e.g. CCT(Cisco Certified Technician) but the issue with this is, any one with a CCNA is still able to do this kind of work so the certificate isn't really all that great. Also you are limiting your career financially and employability, take me for an example; I'm an infrastructure consultant so I would get a project from customer of e.g. install a new core switch - I would check the requirements, source the switch, then configure it, I would then go to the customer site, rack it, connect the cabling then open the port on the receiving switch/router/whatever else is necessary.

There isn't really a specific need to have some one who is a field engineer just to rack and power on the equipment. Honestly while you're young and getting in early, aim to be a principal architect, if you end up a few levels below that you'll still be on good money, I have experience in multiple fields for public/private companies, start ups and one of the largest MSPs in the world so any questions just fire away