>What's your ASN number(s)? Carrier neutral facility? How many connectivity providers are present in the data center? Does data center run BGP over these provid

>What's your ASN number(s)? Carrier neutral facility? How many connectivity providers are present in the data center? Does data center run BGP over these providers? IP Transit providers - Bandwidth Pricing? Overage pricing? Straight $mbps/month? Who manages your network? Ip allotment? Assignment procedure? High density for micro vms(Heroku style)? 200 VMs per host meaning 200IPs per vm. Swip/rwhois updates on assignments? Cross-connects? Cross connect pricing? Charges? Local loop(last mile connectivity) charges? BGP support? Is our traffic on a private/separate v-lan from your other customers? If you are spending more than, say, two grand a month on co-lo, you probably want different providers for your rack and your bandwidth. Aside from the ease of moving providers to keep costs down, usually the 'house bandwidth' is often 10x market rate. I just got a quote the other day (I only need a little bandwidth, 100Mbps at this new place) and they wanted like $10/Mbps for single homed cogent. $0.50-$1.00/meg is market for single homed Cogent.) Most of those are reasonable questions, though most salespeople won't know how to answer them. (and many of them, like 'local loop' charges will only make sense to telco guys. In data centers, we call them 'cross connect fees' and they are still important, but much less of a big deal than local loop charges when you are getting a telco line from someone off site) Note, all of those questions should be asked of the bandwidth provider, not the rack provider. except the cross connect fee - this is what the datacenter/rack provider charges for a connection between you and a transit provider in the building. Sometimes it's one time, but it's usually monthly, and scales directly with how nice the data centre thinks it is. It's $50 one time for copper at he.net, but can be like $300/month+ at a coresite location for fiber. Note, every bandwidth provider in the building is going to have different answers to all those questions, and even within one provider, the answers will be different based on what class of customer you are or how much you can pay.