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#!/usr/bin/env bash
function multihoming_topo_clean
{
echo "Clearing all VPP instances.."
pkill vpp --signal 9
rm /dev/shm/*
echo "Cleaning topology.."
ip netns exec intervppns1 ifconfig vppbr down
ip netns exec intervppns1 brctl delbr vppbr
ip link del dev veth_vpp1 &> /dev/null
ip link del dev veth_vpp2 &> /dev/null
ip link del dev veth_intervpp11 &> /dev/null
ip link del dev veth_intervpp12 &> /dev/null
ip link del dev veth_odl &> /dev/null
ip netns del vppns1 &> /dev/null
ip netns del vppns2 &> /dev/null
ip netns del intervppns1 &> /dev/null
ip netns exec intervppns2 ifconfig vppbr down
ip netns exec intervppns2 brctl delbr vppbr
ip link del dev veth_intervpp21 &> /dev/null
ip link del dev veth_intervpp22 &> /dev/null
ip netns del intervppns2 &> /dev/null
if [ "$1" != "no_odl" ] ; then
odl_clear_all
fi
}
function multihoming_topo_setup
{
# create vpp to clients and inter-vpp namespaces
ip netns add vppns1
ip netns add vppns2
ip netns add intervppns1
ip netns add intervppns2
# create vpp and odl interfaces and set them in intervppns1
ip link add veth_intervpp11 type veth peer name intervpp11
ip link add veth_intervpp12 type veth peer name intervpp12
ip link add veth_odl type veth peer name odl
ip link set dev intervpp11 up
ip link set dev intervpp12 up
ip link set dev odl up
ip link set dev veth_intervpp11 up netns intervppns1
ip link set dev veth_intervpp12 up netns intervppns1
ip link set dev veth_odl up netns intervppns1
ip link add veth_intervpp21 type veth peer name intervpp21
ip link add veth_intervpp22 type veth peer name intervpp22
ip link set dev intervpp21 up
ip link set dev intervpp22 up
ip link set dev veth_intervpp21 up netns intervppns2
ip link set dev veth_intervpp22 up netns intervppns2
# create bridge in intervppns1 and add vpp and odl interfaces
ip netns exec intervppns1 brctl addbr vppbr
ip netns exec intervppns1 brctl addif vppbr veth_intervpp11
ip netns exec intervppns1 brctl addif vppbr veth_intervpp12
ip netns exec intervppns1 brctl addif vppbr veth_odl
ip netns exec intervppns1 ifconfig vppbr up
# create bridge in intervppns2 and add vpp and odl interfaces
ip netns exec intervppns2 brctl addbr vppbr
ip netns exec intervppns2 brctl addif vppbr veth_intervpp21
ip netns exec intervppns2 brctl addif vppbr veth_intervpp22
ip netns exec intervppns2 brctl addif vppbr veth_odl
ip netns exec intervppns2 ifconfig vppbr up
# create and configure 1st veth client to vpp pair
ip link add veth_vpp1 type veth peer name vpp1
ip link set dev vpp1 up
ip link set dev veth_vpp1 up netns vppns1
# create and configure 2nd veth client to vpp pair
ip link add veth_vpp2 type veth peer name vpp2
ip link set dev vpp2 up
ip link set dev veth_vpp2 up netns vppns2
ip netns exec vppns1 \
bash -c "
ip link set dev lo up
ip addr add 6.0.1.2/24 dev veth_vpp1
ip route add 6.0.2.0/24 via 6.0.1.1
ip addr add 6:0:1::2/64 dev veth_vpp1
ip route add 6:0:2::0/64 via 6:0:1::1
"
ip netns exec vppns2 \
bash -c "
ip link set dev lo up
ip addr add 6.0.2.2/24 dev veth_vpp2
ip route add 6.0.1.0/24 via 6.0.2.1
ip addr add 6:0:2::2/64 dev veth_vpp2
ip route add 6:0:1::0/64 via 6:0:2::1
"
# set odl iface ip and disable checksum offloading
ip addr add 6.0.3.100/24 dev odl
ip addr add 6:0:3::100/64 dev odl
ethtool --offload odl rx off tx off
# start vpp1 and vpp2 in separate chroot
${VPP_LITE_BIN} \
unix { log /tmp/vpp1.log cli-listen \
localhost:5002 full-coredump \
exec ${VPP_LITE_CONF}/vpp1.config } \
api-trace { on } api-segment {prefix xtr1}
${VPP_LITE_BIN} \
unix { log /tmp/vpp2.log cli-listen \
localhost:5003 full-coredump \
exec ${VPP_LITE_CONF}/vpp2.config } \
api-trace { on } api-segment {prefix xtr2}
sleep 2
${VPP_API_TEST} chroot prefix xtr1 script in ${VPP_LITE_CONF}/vpp1.vat
${VPP_API_TEST} chroot prefix xtr2 script in ${VPP_LITE_CONF}/vpp2.vat
if [ "$1" != "no_odl" ] ; then
post_curl "add-mapping" ${ODL_CONFIG_FILE1}
post_curl "add-mapping" ${ODL_CONFIG_FILE2}
fi
}
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