Hi networking guys, I need some help :-). We try to find for our department reliable solution for L2 VPN. The task is to connect two remote data centers, each of them connected two 1Gbps lines (with link aggregation). Only IP connectivity between data centers is available (so there is no possibility to create circuit based on MPLS or something like that). The basic problem is that high reliability is required, so the solution have to be fully redundant. The initial idea was about two OpenVPN servers in each data center + two switches (HP E5800) joined into one logical switch via VRF. The link failure is based on LACP packets between both data centers. The solution works, however performance of OpenVPN is really creepy. The maximum we were able to get from this configuration was about 100Mbps. We expect at least 500Mbps (or more in the future). In our thoughts then we were thinking about l2tp on some cisco/HP(H3C) device, however there is little information about performance of that solution and I am not sure how the failure detection would work in redundant configuration. Have anybody some experience with similar solution or at least any idea ? Thanks a lot for thoughts Tomas