This project has ported LVS FULLNAT/DR/NAT and SNAT-GATEWAY to OpenFastPath(base on odp-dpdk).
NAT is only available on single core while FULLNAT,DR and SNAT-GATEWAY support multi-cores, because in lvs-dpdk each core has one local session table and depend on flow director.
LVS-FULLNAT origin source code is at https://github.com/alibaba/LVS
LVS-SNAT gateway origin source code is at https://github.com/jlijian3/lvs-snat
I had forked OpenFastPath project and added support for flow director and ofp_vs example, see https://github.com/lvsgate/ofp/tree/master/example/ofp_vs
I had forked odp-dpdk project and added support for flow director, see https://github.com/lvsgate/odp-dpdk.git
Please note that this project is experimental, it only had limited testing and never runned in production environment.
- Intel x86 CPU
- NIC which support flow director, if you want to run on multi-cores
- lvs-dpdk has been compiled and tested on Centos 7.2 with 3.10 kernel
- 5G memory at least
- CPU E5-2682 v4 @ 2.50GHz
- NIC intel 82599 10G
- fullnat 800w pps if use 5 cores (in 400w pps and out 400w pps)
git clone https://github.com/lvsgate/lvs-dpdk.git
cd lvs-dpdk
./build_all.sh
cd ofp_vs
If build all successfully Goto step 5, otherwise build one by one.
git clone git://dpdk.org/dpdk ./<dpdk-dir>
cd <dpdk-dir>
git checkout -b 17.02 tags/v17.02
make config T=x86_64-native-linuxapp-gcc O=x86_64-native-linuxapp-gcc
cd <dpdk-dir>/x86_64-native-linuxapp-gcc
sed -ri 's,(CONFIG_RTE_LIBRTE_PMD_PCAP=).*,\1y,' .config
cd ..
make install T=x86_64-native-linuxapp-gcc EXTRA_CFLAGS="-fPIC"
#Add env value
export RTE_SDK=<dpdk-dir>
export RTE_TARGET=x86_64-native-linuxapp-gcc
git clone https://github.com/lvsgate/odp-dpdk.git <odp-dir>
cd <odp-dir>
./bootstrap
#SHARED library
./configure --enable-shared --with-platform=linux-dpdk --enable-helper-linux --with-sdk-install-path=<dpdk-dir>/x86_64-native-linuxapp-gcc --prefix=<INSTALL ODP-DPDK TO THIS DIR>
#If build only static library, dpdk driver register function defined with __attribute__(construction) won't be called.
make
make install
yum install libnl3 libnl3-cli libnl3-devel #or download rpm from https://www.infradead.org/~tgr/libnl/
git clone https://github.com/lvsgate/ofp.git <ofp-dir>
cd <ofp-dir>
./bootstrap
./configure --disable-libconfig --with-odp-lib=odp-dpdk --with-odp=<ODP-DPDK INSTALLATION DIR> --enable-shared=no --enable-sp=yes --disable-mtrie CPPFLAGS=-I<ODP-DPDK INSTALLATION DIR>/include/odp/arch/x86_64-linux/
make
git clone https://github.com/lvsgate/lvs-dpdk.git
cd lvs-dpdk/tools/keepalived
sh configure --prefix=/usr --sysconfdir=/etc/ CPPFLAGS=-I/usr/include/libnl3/ LDFLAGS=-L/usr/lib64/
make
make install
cd lvs-dpdk/tools/ipvsadm
make
make install
echo 8192 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
echo 8192 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
mkdir /mnt/huge
mount -t hugetlbfs nodev /mnt/huge
modprobe uio
insmod <dpdk-dir>/x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
cd <dpdk-dir>
./usertools/dpdk-devbind.py --status
./usertools/dpdk-devbind.py --bind=igb_uio <pci-id-1>
./usertools/dpdk-devbind.py --bind=igb_uio <pci-id-2>
modprobe ip_vs #add this line to /etc/rc.local, because ipvsadm and keepalived depend on it.
cd <ofp-dir>/examples/ofp_vs
./ofp_vs -i 0,1 -c 0x00f0 -p 1 -f ofp.conf # -i <port1>,<port2>
# -c <worker core mask>
# -o <required for snat-gw, outer port to wan, snat-gw fdir rule will be add to this port>
# -p <required for fullnat, inner port to lan, fullnat fdir rule will be add to this port>
# -f <config file include default command which you can change in ofp cli>
#If worker core count > 0, -o is required for snat-gw, -p is required for fullnat.
telnet localhost 2345
type in "?" or "help"
>>> ?
# fp0 equal to port number 0 in dpdk
>>> ifconfig fp0 <ip_addr>/<net_mask>
>>> ifconfig fp1 <ip_addr>/<net_mask>
#default gw don't work if enable mtries routing, may be ofp's bug.
>>> route add 0.0.0.0/0 gw <next hop> dev fp0
>>> route add <ip_addr>/<net_mask> gw <next hop> dev fp1
#Add vs ip to lo if you want to ping it
>>> ifconfig lo0 <vip1/32>
>>> ifconfig lo1 <vip2/32>
#The ip on the port is used as nexthop of vs/snat ip or local address.
#H3C switch example.
#add route for virutal server address or SNAT source address
>>> ip route-static <vs.ip.x.0> 255.255.255.0 <nexthop ip on the interface fp0>
#add route for local address of FULLNAT
>>> ip route-static <local.addr.x.0> 255.255.255.0 <nexthop ip on the interface fp1>
./ofp_vs -i 0,1 -c 0x00f0 -o 0 -f ofp.conf #-o specify the port to wan
telnet localhost 2345
>>> snat enable
>>> snat add from 10.1.0.0/16 to 0.0.0.0/0 out_dev fp0 source 192.168.50.253 - 192.168.50.253 algo sd
>>> snat add from 10.1.0.10/32 to 0.0.0.0/0 out_dev fp0 source 192.168.50.100 - 192.168.50.103 algo sdfn
>>> snat del from 10.1.0.10/32 to 0.0.0.0/0 out_dev fp0
>>> snat show
./ofp_vs -i 0,1 -c 0x00f0 -p 1 -f ofp.conf #-p specify the port to lan
#ipvsadm and keepalived will comunicate with ofp_vs process but not the kernel module.
#Create FULLNAT virtual server, local address count must be greater than worker count
ipvsadm -A -t <vip:vport> -s rr
ipvsadm -a -t <vip:vport> -r <rsip1:rsport> -b
ipvsadm -a -t <vip:vport> -r <rsip2:rsport> -b
ipvsadm -P -t <vip:vport> -z <local_addr1>
ipvsadm -P -t <vip:vport> -z <local_addr2>
ipvsadm -P -t <vip:vport> -z <local_addr3>
ipvsadm -P -t <vip:vport> -z <local_addr4>
...
...
ipvsadm -P -t <vip:vport> -z <local_addr254>
ipvsadm -ln
ipvadm -G
curl <vip:vport>
http://www.openfastpath.org/
http://opendataplane.org/
https://github.com/OpenFastPath/ofp
https://github.com/lvsgate/ofp
https://github.com/lvsgate/odp-dpdk
email: lvsgateservice@gmail.com
QQ group: 664555119