We have had connections with many different ISP's, UUnet, Qwest, Sprint.. Of all of them Level3 has been the most outstanding.
We have been in there since '99 right after they opened up the chicago gateway. I have two outtages on memory, the first which was when they were moving off the fiber they were leasing from globalcrossing while they were building there own backbone, lasted about 20 minutes. The next was about 2 years later, a card on there switch went bad, they noticed it before we did and immediatly fixed it.
There routes are excellent, always quick, there internal routing is excellent too, from our chi cab's to st.louis cabs we get <5ms pings.
You can get connections from other providers within Level3 but we chose to just stick with L3 as they have 100's of peering arrangments with other ISP's. Some people may argue that having BGP4 and multiple providers is better, it may have it's advantages but using level3 to route us to the best path is great.
Which saves money and problems.
My advice, stick with L3 as main line and only if necessary bring in other providers.
Originally posted by elik
I noticed that you mentioned that you are in the L3 Facility. Are you using L3 backbone primarly or blended bandwidth with other in that facility? Reason is that I am looking into using L3 up in Denver in DTC to host the servers using L3.
Any issues or problems with them from your experience? I know as general, backbone is excellent, but what as colocation as the L3 as the main line? That what I like to know.