I have recently trying to find a solution to a QoS problem of sorts. What I would wish to be able to do, is to mark a connection based on the data transfer rate in that connection. That is, to have some sort of a token bucket filter or rate estimator attached to a certain connection tracking connection - and to be able to use that in netfilter rules. An example problem case is trivial. Let's assume we have an interactive transfer class, which has several interactive sessions where latency is tried to be kept to a minimum. Occasionally some interactive session might start transferring a lot of data - in which case it should be scheduled into the maximum throughput class, forgetting latency, until it doesn't transfer that much and it should be returned to the interactive class again. The 'connbytes' match in the patch-o-matic matches on cumulative transfer amounts on a per connection basis. The 'limit' match matches packets on a simple token bucket implementation. Combining these two to something which matches bytes on a simple token bucket per connection would create the desired result. So, does such a thing exist already? If not, do other people see this as useful as I do? Or have I missed something crucial? And finally, if it doesn't exist already, making such a module shouldn't be too hard - would anyone be willing to undertake such an ordeal? -- Naked
