For years now I have been multi-homed with my own IP space. BGP setup was easy and I have not had to make very many changes except some filtering.
I now have a customer with their own AS that would like to purchase service from me. I've tested several setups in my lab however I'm unsure of what is the best way to accomplish this task.
The customer has a single /22 that they wish for me to advertise. Would it be proper for me just to advertise their /22 to both of my upstream providers or is there a better way to do this?
My other thought is to establish BGP session with customer. Accept only their /22 in this session and re-distribute the route to my providers. That way if their session goes down my router will automatically withdraw the route.
I'm good with most routing protocols however I'm not too familiar with BGP - especially when it comes to being a provider instead of customer.
Thank you in advance.