Blocking TCP flows?

Christopher Morrow morrowc.lists at gmail.com
Thu Jun 13 20:03:15 UTC 2013


On Thu, Jun 13, 2013 at 3:32 PM, Eric Wustrow <ewust at umich.edu> wrote:
> Hi all,
>
> I'm looking for a way to block individual TCP flows (5-tuple) on a 1-10 gbps
> link, with new blocked flows being dropped within a millisecond or so of
> being
> added. I've been looking into using OpenFlow on an HP Procurve, but I don't
> know much in this area, so I'm looking for better alternatives.
>

this sounds like a job for the arista box with the FGPA onboard, no?


> Ideally, such a device would add minimal latency (many/expandable CAM
> entries?), can handle many programatically added flows (hundreds per
> second),
> and would be deployable in a production network (fails in bypass mode). Are
> there any
> COTS devices I should be looking at? Or is the market for this all under
> the table to
> pro-censorship governments?
>
> Thanks,
>
> -Eric




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