jamal> What about infiniband which has all this built in jamal> offloading? We're seeing some pretty good numbers (well above 5 Gb/sec, basically PCI-X 64bit/133MHz limited) with sockets direct (SDP) on top of InfiniBand. This is running standard sockets applications, just using the AIO patches for kernel 2.4. Latency is also much better than TCP on top of ethernet, although this is mostly just due to the underlying transport. - Roland - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html