I attended NTT ( Ryu/Lagopus ) seminar in Aug. at NCTU, Taiwan and noticed that Lagopus(SDN/OpenFlow Software Switch) is amazing.
Its L2 switch performance with 10GbE X 2 (RFC2889 test ) for most of packet size are near to 10Gbps and the test platform is
Intel xeon E5-2660 (8 cores, 16 threads), Intel X520-DA2 DDR3-1600 64GB.
For more information please see the attachment pictures that I took from the seminar.
The following is the features:
- Best OpenFlow 1.3 compliant software-based switch
- Multi tables, Group tables support
- MPLS, PBB, QinQ, support
- ONF standard specification support
- OpenFlow Switch Specification 1.3.3
- OF-CONFIG 1.1
- Multiple data-plane configuration
- High performance software data-plane on Intel x86 bare-metal server
- Intel DPDK, Raw socket
- Bare metal switch
- Various management/configuration interfaces
- OF-CONFIG, OVSDB, CLI
- SNMP, Ethernet-OAM functionality
For installing Lagopus switch, you can refer to the following URL. It can give us a common installation guide for Lagopus switch.
https://github.com/lagopus/lagopus/blob/master/QUICKSTART.mdAbout my lagopus environment:sudo vi /usr/local/etc/lagopus/lagopus.conf
interface {
ethernet {
eth0;
eth1;
eth2;
}
}
bridge-domains {
br0 {
port {
eth0;
eth1;
eth2;
}
controller {
127.0.0.1;
}
}
}
But, I put 2 shell scripts for quickly installing and setting up the DPDK. I use DPDK-1.6.0 so that all the scripts are based on this version.
#!/bin/sh
export RTE_SDK=/home/myname/git/DPDK-1.6.0
export RTE_TARGET="x86_64-default-linuxapp-gcc"
make config T=${RTE_TARGET}
make install T=${RTE_TARGET}
install_dpdk.sh
#!/bin/sh
export RTE_SDK=/home/myname/git/DPDK-1.6.0
export RTE_TARGET="x86_64-default-linuxapp-gcc"
DPDK_NIC_PCIS="0000:00:08.0 0000:00:09.0 0000:00:0a.0"
HUGEPAGE_NOPAGES="1024"
set_numa_pages()
{
for d in /sys/devices/system/node/node? ; do
sudo sh -c "echo ${HUGEPAGE_NOPAGES} > $d/hugepages/hugepages-2048kB/nr_hugepages"
done
}
set_no_numa_pages()
{
sudo sh -c "echo ${HUGEPAGE_NOPAGES} > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages"
}
# install module
sudo modprobe uio
sudo insmod ${RTE_SDK}/${RTE_TARGET}/kmod/igb_uio.ko
sudo insmod ${RTE_SDK}/${RTE_TARGET}/kmod/rte_kni.ko
# unbind e1000 NICs from igb and bind igb_uio for DPDK
sudo ${RTE_SDK}/tools/pci_unbind.py --bind=igb_uio ${DPDK_NIC_PCIS}
sudo ${RTE_SDK}/tools/pci_unbind.py --status
# mount fugepagefs
echo "Set hugepagesize=${HUGEPAGE_NOPAGES} of 2MB page"
NCPUS=$(find /sys/devices/system/node/node? -maxdepth 0 -type d | wc -l)
if [ ${NCPUS} -gt 1 ] ; then
set_numa_pages
else
set_no_numa_pages
fi
echo "Creating /mnt/huge and mounting as hugetlbfs"
sudo mkdir -p /mnt/huge
grep -s '/mnt/huge' /proc/mounts > /dev/null
if [ $? -ne 0 ] ; then
sudo mount -t hugetlbfs nodev /mnt/huge
fi
unset RTE_SDK
unset RTE_TARGET
Here is one thing needs to be notice.
The variable DPDK_NIC_PCIS is my Linux eth1, eth2, and eth3's bus info as follows:
DPDK_NIC_PCIS="0000:00:08.0 0000:00:09.0 0000:00:0a.0"So, we need to use the comand "ethtool" to find out the NIC's bus-info as follows:
# ethtool -i eth4
driver: igb
version: 5.0.5-k
firmware-version: 3.11, 0x8000046e
bus-info: 0000:02:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
After executing the 2 shell scripts, then we can start the lagopus switch by this:
sudo lagopus -d -- -c3 -n1 -- -p3
