The final packet handed to userland application is the result of complicated interactions between network interface and operating system. In conventional operating systems and network interfaces.Today we usually use network stacks for special purposes, content servers, data plane and etc. Memory is not a scarce resource anymore, network stacks were designed to serve different type application and were very generalized. With advent of modern network interfaces 10Gs now we are game rules changed a lot. In early 90s CPU memory and hardware were fast enough to cope with number of packets on that time. For a long time, the bottleneck for packet processing on commodity hardware were network interfaces. These packet rates are can saturate maximum bandwidth that network interface can handle even if you have a 64 bytes long frames.If you had any questions you can send me an email to the email address written here I’ll be happy to answer them. Hopefully we will going to have a seminar later and hands-on workshop and I hope that we will have more advanced videocasts on this topic in future as well. It’s going to brief an overview over to this technology. Today I’m gonna talk about netmap, a new packet capturing framework. Thank you for watching my videocast for FreeBSD netmap, for those of you who don’t know me my name is Amir Razmjou and I’m computer science graduate student at Florida Tech.* tell kernel to update addresses in the NIC rings */ If (m->m_len slot /* locate src and dst slots */ M->m_data += sizeof(struct ether_header) Simple API but still allows to utilize hardwareĮther_input(struct ifnet *ifp, struct ether_header *eh,.Hardware and NICs (14.88 Mpps on 10G 1.48 Amir Communication and Information Systems
0 Comments
Leave a Reply. |