Messages in this thread | | | Date | Fri, 08 Jun 2012 18:56:12 +0300 | From | Denys Fedoryshchenko <> | Subject | Re: Deadlock, L2TP over IP are not working, 3.4.1 |
| |
On 2012-06-08 18:41, Benjamin LaHaise wrote: > On Fri, Jun 08, 2012 at 07:47:18AM +0200, Eric Dumazet wrote: >> I have no idea how many l2tp_eth devices are setup at once in >> typical >> conf. > > Depends on the usage scenario. L2TP is commonly used for terminating > customer connections by wholesale ISPs. In that kind of edge routing > use-case, tens of thousands of interfaces are easily possible. > > -ben In my case it is few hundreds. I am not sure it is typical case, but i really will like if this setup will give me good performance. Since Linux usually used on the PC's, i don't think they will scale more than 2-3 Gbps. Also L2TP pseudowire (l2tp_eth) usually done not directly to end-users, but to LAC's, so i think it is up to thousand.
Right now i am routing around 700Mbps over there, and noticed some problem with pskb_expand_head, but that's separate question i will ask, if i will not be able to sort it out by myself.
--- Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
| |