前言
DPDK-网络数据开发中文网开发中文网致力于整理收录dpdk，spdk，ovs，vpp，dpvs，virtiohost，sdn/ovn，qemu等方向 的github开源项目，资料文档，书籍，讲解视频，各大企业招聘信息。
23.1.12补充更新了安装部分的内容（基于ESXi+trex v2.87）
既然你已经知道TRex并尝试搜索它的安装教程，这意味着你有一定的基础知识（至少知道自己需要什么）。因此本文对于TRex的介绍部分会偏少
本次主要为TRex安装过程的一次记录（版本为v3.0.0），我会整理一些遇到的问题与解决思路，希望对各位有所帮助。
简介
Cisco开源的一个使用DPDK发包的高性能测试仪。
主要的工作原理概括如下：
其兼具了python构建流的效率和dpdk发包的高性能。
TRex安装
TRex是一个Linux环境下的软件，安装环境无非两种：物理机和虚拟机
本文主要基于虚拟机介绍TRex的安装
而使用虚拟机又可以分为两种安装环境：
两种方式最大的不同在网卡添加时，VMware EXCI需要使用ifcofig让系统识别出网卡，详见[7]
其余的流程差不多，本文着重介绍本地VMware基于ubantu18.04安装TRex的流程
如果你在VMware EXCI安装遇到了问题，也欢迎留言讨论
基于本地虚拟机的安装过程
如何获得一个本地VMware虚拟机（包括换源等操作）请自行Google或参考[1]
我使用的VMware版本是VMwareWorkStation PRO16，虚拟机镜像为Ubantu18.04桌面版
虚拟机配置
先列一下我使用的虚拟机配置（图挂了看表）
设备 摘要
内存 8 GB
处理器 4
硬盘(SCSI) 35 GB
CD/DVD 2 (SATA) 自动检测
CD/DVD (SATA) 自动检测
软盘 自动检测
网络适配器 NAT
网络适配器2 NAT
网络适配器3 NAT
USB控制器 存在
声卡 自动检测
打印机 存在
显示器 自动检测注：因为安装之后的测试需要用到多块网卡，故此处添加了3块网卡，一块作为Linux内核的主网卡，其余两块用于绑定uio驱动进行测试。
虚拟机的网卡可以随时添加或删除，只要保证其模式始终为NAT即可
虚拟机配置完成后，推荐使用VScode连接并操作，因为之后涉及对配置文件的修改，会比较方便。具体请看：https://www.cnblogs.com/DAYceng/p/16867325.html
当然也可以直接在VMware提供的界面中操作
安装gcc环境
安装gcc环境
root@ubuntu:#
sudo apt install build-essential
sudo apt install make
sudo apt-get install libnuma-devps：这步报错的请先换源
获取TRex
在你喜欢的目录下创建一个文件夹存放安装文件
mkdir trex
cd trex下载TRex最新分支并解压
root@ubuntu:/root/trex# wget --no-check-certificate https://trex-tgn.cisco.com/trex/release/latest
root@ubuntu:/root/trex# tar -zxvf latest注：
得到以下目录
root@ubuntu:/root/trex# ls
latest v3.00进入解压后的文件夹，使用脚本查看当前可用的网卡
root@ubuntu:/root/trex# cd v3.00
root@ubuntu:/root/trex/v3.00#
root@ubuntu:/root/trex/v3.00#sudo ./dpdk_setup_ports.py -s
Network devices using DPDK-compatible driver
============================================
<none>
Network devices using kernel driver
===================================
0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper)' if=ens33 drv=e1000 unused=igb_uio,vfio-pci,uio_pci_generic *Active*
0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=e1000 unused=igb_uio,vfio-pci,uio_pci_generic
0000:02:07.0 '82545EM Gigabit Ethernet Controller (Copper)' drv=e1000 unused=igb_uio,vfio-pci,uio_pci_generic
Other network devices
=====================
<none>
root@ubuntu:/root/trex/v3.00# 如果之前添加了网卡，这里就可以看见有3个网卡（没添加的现在再加也行），* Active *为Linux内核正在使用的网卡，另外两张是未启用的网卡（先不要启用），如果有需要请查看[7]
TRex自带脚本自动安装
解压TRex发行版压缩包之后得到的文件夹中包含有以下部分：
因此，如果没有特殊需求，只需运行TRex提供的自动化脚本就可以方便的绑定已有的端口
查看当前NIC端口
需要先明确当前网卡有哪些端口可用（这里trex版本是v2.87，没有影响不用在意）
root@xxx:~/trex/v2.87# ./dpdk_setup_ports.py -s
Network devices using DPDK-compatible driver
============================================
<none>
Network devices using kernel driver
===================================
0000:03:00.0 'VMXNET3 Ethernet Controller' if=ens160 drv=vmxnet3 unused=igb_uio,vfio-pci,uio_pci_generic *Active*
0000:0b:00.0 'VMXNET3 Ethernet Controller' if=ens192 drv=vmxnet3 unused=igb_uio,vfio-pci,uio_pci_generic
0000:13:00.0 'VMXNET3 Ethernet Controller' if=ens224 drv=vmxnet3 unused=igb_uio,vfio-pci,uio_pci_generic
Other network devices
=====================
<none>没有* Active *的就是可以使用的网卡，记住其编号
编辑配置文件
先将TRex提供的配置文件复制到系统目录中
sudo cp cfg/simple_cfg.yaml /etc/trex_cfg.yaml
sudo vim /etc/trex_cfg.yaml打开配置文件，将刚刚查询到的网卡id填进来
- port_limit : 2
version : 2
#List of interfaces. Change to suit your setup. Use ./dpdk_setup_ports.py -s to see available options
interfaces : ["0b:00.0","13:00.0"]
port_info : # Port IPs. Change to suit your needs. In case of loopback, you can leave as is.
- ip : 1.1.1.1
default_gw : 2.2.2.2
- ip : 2.2.2.2
default_gw : 1.1.1.1保存退出
运行自动安装脚本
root@xxx:~/trex/v2.87# ./dpdk_setup_ports.py
WARNING: tried to configure 2048 hugepages for socket 0, but result is: 177
Trying to bind to vfio-pci ...
Trying to compile and bind to igb_uio ...
ERROR: We don't have precompiled igb_uio.ko module for your kernel version.
Will try compiling automatically...
Success.
/usr/bin/python3 dpdk_nic_bind.py --bind=igb_uio 0000:0b:00.0 0000:13:00.0
The ports are bound/configured.查看当前网口绑定情况
root@node-wazuh:~/trex/v2.87# ./dpdk_setup_ports.py -s
Network devices using DPDK-compatible driver
============================================
0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=vmxnet3,vfio-pci,uio_pci_generic
0000:13:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=vmxnet3,vfio-pci,uio_pci_generic
Network devices using kernel driver
===================================
0000:03:00.0 'VMXNET3 Ethernet Controller' if=ens160 drv=vmxnet3 unused=igb_uio,vfio-pci,uio_pci_generic *Active*
Other network devices
=====================
<none>搞定，接下来去启动TRex测试即可
自定义安装
因为TRex的一个重要部分是DPDK，安装过程中主要就是去绑定DPDK
自定义安装方式就是不使用TRex内置的DPDK，而是自行下载所需版本的DPDK进行绑定安装，和独立安装dpdk差别不大
前面的简介中有提到，TRex可以大致分为两部分，一部分是用来构造数据包的【基于scapy】，另一部分则是用来发送数据包【基于DPDK】
安装gcc环境
现在我们先来安装DPDK部分，首先安装gcc环境
root@ubuntu:/root/trex/v3.00#
sudo apt install build-essential
sudo apt install make
sudo apt-get install libnuma-dev下载dpdk
root@ubuntu:/root/trex/v3.00# wget http://fast.dpdk.org/rel/dpdk-18.11.9.tar.xz
root@ubuntu:/root/trex/v3.00# tar xvJf dpdk-18.11.9.tar.xz
root@ubuntu:/root/trex/v3.00# cd dpdk-stable-18.11.9/
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9#添加环境变量
在dpdk的文件目录下配置环境变量，否则会导致之后用脚本安装dpdk构建环境时出错
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9# export RTE_SDK=`pwd`
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9# export DESTDIR=`pwd`
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9# export RTE_TARGET=x86_64-default-linuxapp-gcc加载uio驱动
# 加载uio驱动
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9# modprobe uio使用脚本安装dpdk
使用dpdk-setup.sh脚本进行安装
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9# ./usertools/dpdk-setup.sh
------------------------------------------------------------------------------
RTE_SDK exported as /root/dpdk
------------------------------------------------------------------------------
----------------------------------------------------------
Step 1: Select the DPDK environment to build
----------------------------------------------------------
[1] arm64-armv8a-linuxapp-clang
[2] arm64-armv8a-linuxapp-gcc
[3] arm64-dpaa2-linuxapp-gcc
[4] arm64-dpaa-linuxapp-gcc
[5] arm64-stingray-linuxapp-gcc
[6] arm64-thunderx-linuxapp-gcc
[7] arm64-xgene1-linuxapp-gcc
[8] arm-armv7a-linuxapp-gcc
[9] i686-native-linuxapp-gcc
[10] i686-native-linuxapp-icc
[11] ppc_64-power8-linuxapp-gcc
[12] x86_64-native-bsdapp-clang
[13] x86_64-native-bsdapp-gcc
[14] x86_64-native-linuxapp-clang
[15] x86_64-native-linuxapp-gcc
[16] x86_64-native-linuxapp-icc
[17] x86_x32-native-linuxapp-gcc
----------------------------------------------------------
Step 2: Setup linuxapp environment
----------------------------------------------------------
[18] Insert IGB UIO module
[19] Insert VFIO module
[20] Insert KNI module
[21] Setup hugepage mappings for non-NUMA systems
[22] Setup hugepage mappings for NUMA systems
[23] Display current Ethernet/Crypto device settings
[24] Bind Ethernet/Crypto device to IGB UIO module
[25] Bind Ethernet/Crypto device to VFIO module
[26] Setup VFIO permissions
----------------------------------------------------------
Step 3: Run test application for linuxapp environment
----------------------------------------------------------
[27] Run test application ($RTE_TARGET/app/test)
[28] Run testpmd application in interactive mode ($RTE_TARGET/app/testpmd)
----------------------------------------------------------
Step 4: Other tools
----------------------------------------------------------
[29] List hugepage info from /proc/meminfo
----------------------------------------------------------
Step 5: Uninstall and system cleanup
----------------------------------------------------------
[30] Unbind devices from IGB UIO or VFIO driver
[31] Remove IGB UIO module
[32] Remove VFIO module
[33] Remove KNI module
[34] Remove hugepage mappings
[35] Exit Script
Option:步骤一
根据虚拟机的环境选择相应的build，例如我的虚拟机是64位Intel架构的环境，则选择[15] x86_64-native
linuxapp-gcc
...
Installation in /root/dpdk/ complete
------------------------------------------------------------------------------
RTE_TARGET exported as x86_64-native-linuxapp-gcc
------------------------------------------------------------------------------
Press enter to continue ...
注：若此时输出信息为以下情况（报错“Installation cannot run with T defined and DESTDIR undefined”）
INSTALL-APP dpdk-test-eventdev
INSTALL-MAP dpdk-test-eventdev.map
Build complete [x86_64-native-linuxapp-gcc]
Installation cannot run with T defined and DESTDIR undefined
------------------------------------------------------------------------------
RTE_TARGET exported as x86_64-native-linuxapp-gcc
--------------------------------------------
Press enter to continue ...请先添加环境变量并再次执行[15]
学习地址：Dpdk/网络协议栈/vpp/OvS/DDos/NFV/虚拟化/高性能专家
更多DPDK相关学习资料有需要的可以自行报名学习，免费订阅，永久学习，或点击这里加Q群免费领取，关注我持续更新哦！！
步骤二
igb_uio模块Unloading any existing DPDK UIO module
Loading DPDK UIO module
Press enter to continue ...
VFIO module
Unloading any existing VFIO module
Loading VFIO module
chmod /dev/vfio
OK
Press enter to continue ...
KNI module
Unloading any existing DPDK KNI module
Loading DPDK KNI module
Press enter to continue ...
Option: 21
Removing currently reserved hugepages
Unmounting /mnt/huge and removing directory
Input the number of 2048kB hugepages
Example: to have 128MB of hugepages available in a 2MB huge page system,
enter '64' to reserve 64 * 2MB pages
Number of pages: 1024
Reserving hugepages
Creating /mnt/huge and mounting as hugetlbfs
Press enter to continue ...Option: 24
Network devices using kernel driver
===================================
0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=ens33 drv=e1000 unused=igb_uio,vfio-pci *Active*
0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=ens38 drv=e1000 unused=igb_uio,vfio-pci
0000:02:07.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=ens39 drv=e1000 unused=igb_uio,vfio-pci
No 'Crypto' devices detected
============================
No 'Eventdev' devices detected
==============================
No 'Mempool' devices detected
=============================
No 'Compress' devices detected
==============================
Enter PCI address of device to bind to IGB UIO driver: 02:06.0
OK
Press enter to continue ...
======================================================================
======================================================================
Option: 24
Network devices using DPDK-compatible driver
============================================
0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' drv=igb_uio unused=e1000,vfio-pci
Network devices using kernel driver
===================================
0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=ens33 drv=e1000 unused=igb_uio,vfio-pci *Active*
0000:02:07.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' if=ens39 drv=e1000 unused=igb_uio,vfio-pci
No 'Crypto' devices detected
============================
No 'Eventdev' devices detected
==============================
No 'Mempool' devices detected
=============================
No 'Compress' devices detected
==============================
Enter PCI address of device to bind to IGB UIO driver: 02:07.0
OK
Press enter to continue ...PCI网卡的drv=igb_uio即完成绑定
步骤三
测试，选择[27]和[28]
Option: 27
Enter hex bitmask of cores to execute test app on
Example: to execute app on cores 0 to 7, enter 0xff
bitmask: 0x3
Launching app
sudo: x86_64-default-linuxapp-gcc/app/test: command not found
Press enter to continue ...
Option: 28
Enter hex bitmask of cores to execute testpmd app on
Example: to execute app on cores 0 to 7, enter 0xff
bitmask: 0x3
Launching app
sudo: x86_64-default-linuxapp-gcc/app/testpmd: command not found这两个测试都有可能会出现"command not found"的报错提醒，
其中[27]出现该错误不用理会，[28]若出现的话，可以退出脚本（选[35]），到/[你的DPDK目录]/x86_64
native-linuxapp-gcc/app下找到testpmd，再运行它进行测试即可，若无以外会得到以下输出
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9/x86_64-native-linuxapp-gcc/app# ./testpmd
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:02:01.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
EAL: PCI device 0000:02:06.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
EAL: PCI device 0000:02:07.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
Port 0: 00:0C:29:AE:BF:4D
Configuring Port 1 (socket 0)
Port 1: 00:0C:29:AE:BF:43
Checking link statuses...
Done
No commandline core given, start packet forwarding
io packet forwarding - ports=2 - cores=1 - streams=2 - NUMA support enabled, MP allocation mode: native
Logical Core 1 (socket 0) forwards packets on 2 streams:
RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
io packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=2
port 0: RX queue number: 1 Tx queue number: 1
Rx offloads=0x0 Tx offloads=0x0
RX queue: 0
RX desc=256 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
RX Offloads=0x0
TX queue: 0
TX desc=256 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX offloads=0x0 - TX RS bit threshold=0
port 1: RX queue number: 1 Tx queue number: 1
Rx offloads=0x0 Tx offloads=0x0
RX queue: 0
RX desc=256 - RX free threshold=0
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
RX Offloads=0x0
TX queue: 0
TX desc=256 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX offloads=0x0 - TX RS bit threshold=0
Press enter to exit
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 44 RX-dropped: 0 RX-total: 44
TX-packets: 34 TX-dropped: 0 TX-total: 34
----------------------------------------------------------------------------
---------------------- Forward statistics for port 1 ----------------------
RX-packets: 59 RX-dropped: 0 RX-total: 59
TX-packets: 24 TX-dropped: 0 TX-total: 24
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 103 RX-dropped: 0 RX-total: 103
TX-packets: 58 TX-dropped: 0 TX-total: 58
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
Stopping port 0...
Stopping ports...
Done
Stopping port 1...
Stopping ports...
Done
Shutting down port 0...
Closing ports...
Done
Shutting down port 1...
Closing ports...
Done
Bye...运行testpmd可能出现的问题
HugePage容量问题
当运行测试时或者testpmd，可能会遇到如下问题
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9/x86_64-native-linuxapp-gcc/app# ./testpmd
EAL: Detected 8 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-2048kB
EAL: FATAL: Cannot get hugepage information.
EAL: Cannot get hugepage information.
PANIC in main():
Cannot init EAL
5: [./testpmd(_start+0x29) [0x498829]]
4: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f8a0fee0830]]
3: [./testpmd(main+0xc48) [0x48f528]]
2: [./testpmd(__rte_panic+0xbb) [0x47eb09]]
1: [./testpmd(rte_dump_stack+0x2b) [0x5c8a1b]]
Aborted (core dumped)这说明Hugepage不够用，可以先查看系统内存状况
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9/x86_64-native-linuxapp-gcc/app# cat /proc/meminfo | grep Huge
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 1024
HugePages_Free: 775
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 2097152 kB如果不够用可以按需修改
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9/x86_64-native-linuxapp-gcc/build/kernel/linux# echo 2048 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
root@ubuntu:/root/trex/v3.00/dpdk-stable-18.11.9/x86_64-native-linuxapp-gcc/build/kernel/linux# cat /proc/meminfo | grep Huge
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 1448
HugePages_Free: 1199
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 2965504 kB此时再去脚本中运行测试[28]会得到以下输出
Option: 28
Enter hex bitmask of cores to execute testpmd app on
Example: to execute app on cores 0 to 7, enter 0xff
bitmask: 0x3
Launching app
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:02:01.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
EAL: PCI device 0000:02:06.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
EAL: PCI device 0000:02:07.0 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:100f net_e1000_em
Interactive-mode selected
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=155456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
Port 0: 00:0C:29:AE:BF:4D
Configuring Port 1 (socket 0)
Port 1: 00:0C:29:AE:BF:43
Checking link statuses...
Done
testpmd>这是正常的，包括"EAL: No free hugepages reported in hugepages-1048576kB"提示也是正常的
之后再去/[你的DPDK目录]/x86_64-native-linuxapp-gcc/app下运行testpmd可得到与本文一致的结果
82545EM 虚拟网卡问题
若物理机的网卡为82545EM，使用VMware建立虚拟机后，该网卡对于dpdk的支持会存在问题，
报错为"Eal:Error reading from file descriptor 33: Input/output error"
具体见[5]的分析
为了跳过dpdk对82545EM某些兼容性的检测，我们需要修改dpdk的配置文件igb_uio.c
该文件位于/[你的DPDK目录]//kernel/linux/igb_uio/igb_uio.c下
使用vscode打开该文件（或者vim也行）
定位到if (pci_intx_mask_supported(udev->pdev) ，大概是第260行
然后修改为if (pci_intx_mask_supported(udev->pdev)|| 1)，如下：
#endif
/* falls through - to INTX 修改*/
case RTE_INTR_MODE_LEGACY:
if (pci_intx_mask_supported(udev->pdev)|| 1) {
dev_dbg(&udev->pdev->dev, "using INTX");
udev->info.irq_flags = IRQF_SHARED | IRQF_NO_THREAD;
udev->info.irq = udev->pdev->irq;
udev->mode = RTE_INTR_MODE_LEGACY;
break;
}然后重新执行编译
modprobe uio
并重新运行脚本中的[15]项，安装环境
解决
启动TRex
编辑配置文件（如果之前安装时没有做以下配置，例如使用自定义安装，则需要补充）
sudo cp cfg/simple_cfg.yaml /etc/trex_cfg.yaml
sudo vim /etc/trex_cfg.yaml打开两个终端，分别运行以下指令启动stateless服务器
stl启动
root@ubuntu:sudo ./t-rex-64 -i --stl
默认启动
root@ubuntu:/root/trex/v3.00# sudo ./t-rex-64 -i
root@ubuntu:/root/trex/v3.00# sudo ./trex-console
效果如下（图挂了看代码块）
##服务器启动
-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------
opackets | 0 | 0
obytes | 0 | 0
ipackets | 0 | 0
ibytes | 0 | 0
ierrors | 0 | 0
oerrors | 0 | 0
Tx Bw | 0.00 bps | 0.00 bps
-Global stats enabled
Cpu Utilization : 0.0 %
Platform_factor : 1.0
Total-Tx : 0.00 bps
Total-Rx : 0.00 bps
Total-PPS : 0.00 pps
Total-CPS : 0.00 cps
Expected-PPS : 0.00 pps
Expected-CPS : 0.00 cps
Expected-BPS : 0.00 bps
Active-flows : 0 Clients : 0 Socket-util : 0.0000 %
Open-flows : 0 Servers : 0 Socket : 0 Socket/Clients : -nan
drop-rate : 0.00 bps
current time : 63.5 sec
test duration : 0.0 sec
*** TRex is shutting down - cause: 'CTRL + C detected'
All cores stopped !!
Killing Scapy server... Scapy server is killed
root@ubuntu:/root/trex/v3.00# TRex测速实验
启动trex服务器端和客户端（必须用sudo，要不然速度不达标）
sudo ./t-rex-64 --no-ofed-check -i -c 24 # 24核启动
sudo ./trex-console发送流量
start -f stl/udp_1pkt_pcap.py -m 100mbps -p 0 --force使用port0、1都可以发送流量，如图
关于丢包率
根据issue：https://github.com/cisco-system-traffic-generator/trex-core/issues/765
我们丢包率高是因为只发送了流量而没有接收流量
到此，TRex的安装流程结束
但是这只相当于走完了"helloworld"，更多的使用方法请参考[0]
感谢各个社区的内容分享，参考资料我已经在文末给出
参考资料与注释
[0]TRex官方文档https://trex-tgn.cisco.com/trex/doc/trex_manual.html#_hardware_recommendations
[1]https://www.cnblogs.com/hanyanling/p/13364204.html
[2]http://www.isimble.com/2018/11/15/dpdk-setup/
[3]https://blog.51cto.com/feishujun/5573292
[4]https://dev.to/dannypsnl/dpdk-eal-input-output-error-1kn4
[5]https://blog.csdn.net/Longyu_wlz/article/details/121443906
[6]https://blog.csdn.net/yb890102/article/details/127587910
[7]
注：未启用的网卡在终端中使用ifconfig命令是查不到的，需要先使用ip addr找出网卡，再激活，此时网卡会变为* Active *状态
#激活网卡
ifconfig [网卡名称]
原文链接：https://www.cnblogs.com/DAYceng/p/16878732.html
DPDK-网络数据开发中文网开发中文网致力于整理收录dpdk，spdk，ovs，vpp，dpvs，virtiohost，sdn/ovn，qemu等方向 的github开源项目，资料文档，书籍，讲解视频，各大企业招聘信息。