2Gb traffic flow cap on single source-destination transfers on 10Gb line?

All,

I have never heard of such a limitation. Has anyone heard that this line below? Its a bit concerning to me since Cogent is offering a bunch of savings to us. Why I am skeptical is because I see single flows on my current Crowne Castle line exceed 2Gbps. Any information is helpful here. Doing some more research.

"Cogent always provides the full CDR that our clients purchase, so if you have a VPLS or any other L2 port with us on a 10GE port, you would have the full 10Gb of throughput available across that line. We, like all Type-2 providers, do have a 2Gb traffic flow cap on single source-destination transfers, which is there to prevent hashing errors in the unlikely event of a fiber cut. This is due to the inherent way the chips in the network cards are built and not a limitation of Cogent specifically; we are just more cautious about it than other ISPs to ensure a quality connection to our clients.

Basically, this just means you can use a total of 10Gb across that circuit like 1Gb here plus 100Mb there (aggregated traffic), and they all add up to 10Gb. It is just single the single TCP/IP session flows that exceed 2Gbps which possibly can be an issue. However, plenty of our customers do that all the time provided we have proper planning and capacity. With that in mind, if you do need flows larger than 2Gbps: how large are they and what frequency would you need them available?"