一.在Ubuntu16.0下配置并编译MPTCP
1.安装依赖环境

sudo apt-get update
sudo apt-get install libncurses5-dev
sudo apt-get install build-essential

2.下载MPTCP源码

cd /usr/src
sudo git clone --depth=1 git://github.com/multipath-tcp/mptcp.git
cd mptcp

3.配置编译内核

sudo make menuconfig

PS：如果出现错误提示：

则下载缺少的依赖包

sudo apt-get install bison flex

配置内核Tips：

 1. 每一个条目，（1）选择y表示编译到内核，条目前括号内的内容显示为<*>或[*]；（2）选择n表示不编译到内核中，条目前显示为<>或[ ]；（3）选择m表示以模块的方式编译，之后使用需要加载该模块才可以，条目前显示为<M>或[M]。2. 进入networking support->networking options，检查一下IPv6模块，选择编译进内核或者不编译，不要选择以模块方式编译，否则看不到后面的MPTCP选项。这里我选择编译到内核。3. networking support->networking options->TCP/IP networking->MPTCP protocol(MPTCP)，按y选择编译。4. Networking support->Networking options->IP: advanced router->IP: policy routing，按y选择编译。5. MPTCP: advanced path-manager control，编译。进到里面，编译MPTCP Full-Mesh Path-Manager和MPTCP ndiff-ports。下面的Default MPTCP Path-Manager 选择Full mesh。6. Networking support->Networking options->TCP: advanced congestion control，进入。这里是拥塞控制算法，需要哪些就选择哪些，*编译到内核，M是编译成模块。这里选择CUBIC ，Vegas，Veno，LIA(MPTCP Link Increase)，Olia (MPTCP Opportunistic Linked Increase)，wVegas,Balia。选择默认的算法。7. Networking support->Networking options-> “Schedule”都选上，默认选择Round Robin（Default选择的是最小RTT）。8. 保存配置，退出

4.编译内核

cd /usr/src/mptcp
sudo make

5.编译并安装模块

sudo make modules_install

6.安装

sudo make install

7.重启系统
重启系统，重启以后要进入新编译好的内核中，在开机的时候选择ubuntu高级选项，找到刚刚编译好的内核，选择进入。
8.检查安装的MPTCP版本

dmesg | grep MPTCP

9.检查是否在使用MPTCP
网址

参考链接
网址

二。配置路由

自动配置
1.编辑mptcp_up

cd /etc/network/if-up.d
sudo gedit mptcp_up

复制粘贴以下内容，保存退出

#!/bin/sh
# A script for setting up routing tables for MPTCP in the N950.# Copy this script into /etc/network/if-up.d/set -eenv > /etc/network/if_up_envif [ "$IFACE" = lo -o "$MODE" != start ]; thenexit 0
fiif [ -z $DEVICE_IFACE ]; thenexit 0
fi# FIRST, make a table-alias
if [ `grep $DEVICE_IFACE /etc/iproute2/rt_tables | wc -l` -eq 0 ]; thenNUM=`cat /etc/iproute2/rt_tables | wc -l`echo "$NUM  $DEVICE_IFACE" >> /etc/iproute2/rt_tables
fiif [ $DHCP4_IP_ADDRESS ]; thenSUBNET=`echo $IP4_ADDRESS_0 | cut -d \   -f 1 | cut -d / -f 2`ip route add table $DEVICE_IFACE to $DHCP4_NETWORK_NUMBER/$SUBNET dev $DEVICE_IFACE scope linkip route add table $DEVICE_IFACE default via $DHCP4_ROUTERS dev $DEVICE_IFACEip rule add from $DHCP4_IP_ADDRESS table $DEVICE_IFACE
else# PPP-interfaceIPADDR=`echo $IP4_ADDRESS_0 | cut -d \   -f 1 | cut -d / -f 1`ip route add table $DEVICE_IFACE default dev $DEVICE_IP_IFACE scope linkip rule add from $IPADDR table $DEVICE_IFACE
fi

设置文件可执行（root下）

sudo chmod a+x mptcp_up

2.编辑mptcp_down

cd /etc/network/if-post-down.d
sudo gedit mptcp_down

复制粘贴以下内容，保存退出

#!/bin/sh
# A script for setting up routing tables for MPTCP in the N950.# Copy this script into /etc/network/if-post-down.d/set -eenv > /etc/network/if_down_envif [ "$IFACE" = lo -o "$MODE" != stop ]; thenexit 0
fiip rule del table $DEVICE_IFACE
ip route flush table $DEVICE_IFACE

设置文件可执行（root下）

sudo chmod a+x mptcp_down

上述两个脚本根据环境变量配置路由表，绝大多数情况下可以正常工作。还可以参考手动配置路由

三.更改调度算法（有问题尚未解决）

更改前执行sudo make menuconfig命令时，MPTCP:advanced scheduler control有以下这几个选项：
1.对Kconfig文件添加语句

#
# MPTCP configuration
#
config MPTCPbool "MPTCP protocol"depends on (IPV6=y || IPV6=n)---help---This replaces the normal TCP stack with a Multipath TCP stack,able to use several paths at once.menuconfig MPTCP_PM_ADVANCEDbool "MPTCP: advanced path-manager control"depends on MPTCP=y---help---Support for selection of different path-managers. You should choose 'Y' here,because otherwise you will not actively create new MPTCP-subflows.if MPTCP_PM_ADVANCEDconfig MPTCP_FULLMESHtristate "MPTCP Full-Mesh Path-Manager"depends on MPTCP=y---help---This path-management module will create a full-mesh among all IP-addresses.config MPTCP_NDIFFPORTStristate "MPTCP ndiff-ports"depends on MPTCP=y---help---This path-management module will create multiple subflows between the samepair of IP-addresses, modifying the source-port. You can set the numberof subflows via the mptcp_ndiffports-sysctl.config MPTCP_BINDERtristate "MPTCP Binder"depends on (MPTCP=y)---help---This path-management module works like ndiffports, and adds the sysctloption to set the gateway (and/or path to) per each additional subflowvia Loose Source Routing (IPv4 only).config MPTCP_NETLINKtristate "MPTCP Netlink Path-Manager"depends on MPTCP=y---help---This path-management module is controlled over a Netlink interface. A userspacemodule can therefore control the establishment of new subflows and the policyto apply over those new subflows for every connection.choiceprompt "Default MPTCP Path-Manager"default DEFAULT_DUMMYhelpSelect the Path-Manager of your choiceconfig DEFAULT_FULLMESHbool "Full mesh" if MPTCP_FULLMESH=yconfig DEFAULT_NDIFFPORTSbool "ndiff-ports" if MPTCP_NDIFFPORTS=yconfig DEFAULT_BINDERbool "binder" if MPTCP_BINDER=yconfig DEFAULT_NETLINKbool "Netlink" if MPTCP_NETLINK=yconfig DEFAULT_DUMMYbool "Default"endchoiceendifconfig DEFAULT_MPTCP_PMstringdefault "default" if DEFAULT_DUMMYdefault "fullmesh" if DEFAULT_FULLMESHdefault "ndiffports" if DEFAULT_NDIFFPORTSdefault "binder" if DEFAULT_BINDERdefault "default"menuconfig MPTCP_SCHED_ADVANCEDbool "MPTCP: advanced scheduler control"depends on MPTCP=y---help---Support for selection of different schedulers. You should choose 'Y' here,if you want to choose a different scheduler than the default one.if MPTCP_SCHED_ADVANCEDconfig MPTCP_BLESTtristate "MPTCP BLEST"depends on MPTCP=y---help---This is an experimental BLocking ESTimation-based (BLEST) scheduler.config MPTCP_ROUNDROBINtristate "MPTCP Round-Robin"depends on (MPTCP=y)---help---This is a very simple round-robin scheduler. Probably has bad performancebut might be interesting for researchers.config MPTCP_REDUNDANTtristate "MPTCP Redundant"depends on (MPTCP=y)---help---This scheduler sends all packets redundantly over all subflows to decreaseslatency and jitter on the cost of lower throughput.config MPTCP_SCHEWZXtristate "MPTCP Sche_wzx"depends on (MPTCP=y)---help---This scheduler created by wzx in 2021/10/12 for test.choiceprompt "Default MPTCP Scheduler"default DEFAULT_SCHEDULERhelpSelect the Scheduler of your choiceconfig DEFAULT_SCHEDULERbool "Default"---help---This is the default scheduler, sending first on the subflowwith the lowest RTT.config DEFAULT_ROUNDROBINbool "Round-Robin" if MPTCP_ROUNDROBIN=y---help---This is the round-rob scheduler, sending in a round-robinfashion..config DEFAULT_REDUNDANTbool "Redundant" if MPTCP_SCHEWZX=y---help---This is the redundant scheduler, sending packets redundantly overall the subflows.config DEFAULT_SCHEWZXbool "schewzx" if MPTCP_REDUNDANT=y---help---This scheduler created by wzx in 2021/10/12 for test.endchoice
endifconfig DEFAULT_MPTCP_SCHEDstringdepends on (MPTCP=y)default "default" if DEFAULT_SCHEDULERdefault "roundrobin" if DEFAULT_ROUNDROBINdefault "redundant" if DEFAULT_REDUNDANTdefault "schewzx" if DEFAULT_SCHEWZXdefault "default"

2.对Makefile增加语句

#
## Makefile for MultiPath TCP support code.
#
#obj-$(CONFIG_MPTCP) += mptcp.omptcp-y := mptcp_ctrl.o mptcp_ipv4.o mptcp_pm.o \mptcp_output.o mptcp_input.o mptcp_sched.oobj-$(CONFIG_TCP_CONG_LIA) += mptcp_coupled.o
obj-$(CONFIG_TCP_CONG_OLIA) += mptcp_olia.o
obj-$(CONFIG_TCP_CONG_WVEGAS) += mptcp_wvegas.o
obj-$(CONFIG_TCP_CONG_BALIA) += mptcp_balia.o
obj-$(CONFIG_TCP_CONG_MCTCPDESYNC) += mctcp_desync.o
obj-$(CONFIG_MPTCP_FULLMESH) += mptcp_fullmesh.o
obj-$(CONFIG_MPTCP_NDIFFPORTS) += mptcp_ndiffports.o
obj-$(CONFIG_MPTCP_BINDER) += mptcp_binder.o
obj-$(CONFIG_MPTCP_NETLINK) += mptcp_netlink.o
obj-$(CONFIG_MPTCP_ROUNDROBIN) += mptcp_rr.o
obj-$(CONFIG_MPTCP_REDUNDANT) += mptcp_redundant.o
obj-$(CONFIG_MPTCP_BLEST) += mptcp_blest.o
obj-$(CONFIG_MPTCP_SCHEWZX) += mptcp_wzx.omptcp-$(subst m,y,$(CONFIG_IPV6)) += mptcp_ipv6.o

3.终端执行命令

make CONFIG_MPTCP_SCHEWZX=m -C /usr/src/mptcp M=/usr/src/mptcp/net/mptcp modules

执行命令后再执行 sudo make menuconfig 出现新的调度算法：

但是模块前的编译方式是<>表示不编译到内核
4.按照教程，后续步骤为将产生的.ko文件拷贝到/lib/modules/2.6.19/kernel/对应的目录即可。再运行depmod -a重新配置依赖关系，以后就可以通过modprobe mptcp来加载mptcp模块了。没找到这个kernel文件夹，所以就没执行这一步骤。且手欠把新产生的文件都给删了，就无法产生新文件了，咱也不知道咋回事。

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Ubuntu16.0配置MPTCP

二。配置路由

三.更改调度算法（有问题尚未解决）

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