packetdrill again uses a packet socket or libpcap. To consume test packets in local mode packetdrill uses a TUN device; remotely, packets go over the physical network and packetdrill sets up filtering rules to drop the packets before layer 4 (UDP or TCP) processing in the remote kernel sees...
generic-segmentation-offload: on generic-receive-offload: off large-receive-offload: off ntuple-filters: off receive-hashing: on 现象是RS上可以收到LVS转发过来的UDP包,但是checksum出错,RS的内核直接丢弃。 ip_vs_proto_udp.c 397行 改为 } else if (!cp->app && (udph->check != 0)) { ...
Linux系统提供了多种优化手段:1)支持批量发送函数sendmmsg,多个UDP报文,通过一次系统调用完成发送;2)开启内核GRO/GSO,在网卡驱动完成拆包和组包;3)网卡支持硬件UDP GSO offload。 考虑到以上问题之后,一般QUIC服务可以类似按照下图的架构设计。 加速链路 对以下两段链路使用QUIC加速: 1)最后一公里:因受wifi设备性能...
TCP segmentation offload over IPv4 and IPv6. Support for TCP/IPv4, UDP/IPv4, TCP/IPv6 and UDP/IPv6 checksum offload. Supports jumbo frames up to 9000 bytes (strongly recommended for 2.5GBit operation). Fully optimized for Catalina. Note that older versions of macOS might not support 2.5GB...
UDP checksum offload:开/关,表示网卡硬件UDP校验和功能加载和卸载。 此功能包含网络层甚至传输层,一般高级些的网卡才具备上述checksum offload功能及其开与关,该功能能够在网卡硬件上完成checksum的发送计算和接收校验,降低了CPU的压力。 网卡的Q&A 网卡上的橙色和绿色灯代表什么?
RFSoC Data Offload This repository contains an RFSoC4x2 reference design that enables high-speed data offload from the board to a PC/server, via the QSFP28 connection. The RF-ADC data is packetised into UDP packets using the open-source Network Layer IP, and sent to the QSFP28 port via ...
"udp":true } }, { "tag": "http", "protocol": "http", "port": 1081, "settings": { "timeout": 0 } } ], "outbounds": [ { "tag": "direct", "protocol": "freedom", "settings": { "streamSettings": { "sockopt": { "mark": 255 } } } }, { "tag": "china", "protoco...
* Add hardware offload support for output, drop, set of MAC, IPv4 and TCP/UDP ports actions (experimental). * Add experimental support for TSO. - RSTP: * The rstp_statistics column in Port table will only be updated every stats-update-interval configured in Open_vSwitch table. -...
TCP, UDP and IPv4 checksum offload (receive and transmit). Support for TCP/IPv6 and UDP/IPv6 checksum offload. Makes use of the chip's TCP Segmentation Offload (TSO) feature with IPv4 and IPv6 in order to reduce CPU load while sending large amounts of data (disabled due to hardware bu...
UDP---openvpn/transport/client/udpcli.hpp TCP---openvpn/transport/client/tcpcli.hpp HTTP Proxy---openvpn/transport/client/httpcli.hpp Tun Layer OpenVPN 3 defines abstract base classes for Tun layer implementations inopenvpn/tun/client/tunbase.hpp. ...