2 function 3_node_snake_topo_clean
4 echo "Clearing all VPP instances.."
8 echo "Cleaning topology.."
9 ip netns exec xtr-ns12 ifconfig br12 down
10 ip netns exec xtr-ns23 ifconfig br23 down
12 ip netns exec xtr-ns12 brctl delbr br12
13 ip netns exec xtr-ns23 brctl delbr br23
15 ip link del dev veth_vpp1 &> /dev/null
16 ip link del dev veth_vpp2 &> /dev/null
17 ip link del dev veth_xtr1_xtr2 &> /dev/null
18 ip link del dev veth_xtr2_xtr1 &> /dev/null
19 ip link del dev veth_xtr2_xtr3 &> /dev/null
20 ip link del dev veth_xtr3_xtr2 &> /dev/null
22 ip netns del vppns1 &> /dev/null
23 ip netns del vppns2 &> /dev/null
24 ip netns del xtr-ns12 &> /dev/null
25 ip netns del xtr-ns23 &> /dev/null
28 function 3_node_snake_topo_setup
35 ip link add veth_xtr1_xtr2 type veth peer name xtr1_xtr2
36 ip link add veth_xtr2_xtr1 type veth peer name xtr2_xtr1
37 ip link add veth_xtr2_xtr3 type veth peer name xtr2_xtr3
38 ip link add veth_xtr3_xtr2 type veth peer name xtr3_xtr2
40 # enable peer interfaces
41 ip link set dev xtr1_xtr2 up
42 ip link set dev xtr2_xtr1 up
43 ip link set dev xtr2_xtr3 up
44 ip link set dev xtr3_xtr2 up
46 ip link set dev veth_xtr1_xtr2 up netns xtr-ns12
47 ip link set dev veth_xtr2_xtr1 up netns xtr-ns12
48 ip link set dev veth_xtr2_xtr3 up netns xtr-ns23
49 ip link set dev veth_xtr3_xtr2 up netns xtr-ns23
51 ip netns exec xtr-ns12 brctl addbr br12
52 ip netns exec xtr-ns23 brctl addbr br23
54 ip netns exec xtr-ns12 brctl addif br12 veth_xtr1_xtr2
55 ip netns exec xtr-ns12 brctl addif br12 veth_xtr2_xtr1
56 ip netns exec xtr-ns12 ifconfig br12 up
57 ip netns exec xtr-ns23 brctl addif br23 veth_xtr2_xtr3
58 ip netns exec xtr-ns23 brctl addif br23 veth_xtr3_xtr2
59 ip netns exec xtr-ns23 ifconfig br23 up
61 # create and configure 1st veth client to vpp pair
62 ip link add veth_vpp1 type veth peer name vpp1
63 ip link set dev vpp1 up
64 ip link set dev veth_vpp1 up netns vppns1
66 # create and configure 2nd veth client to vpp pair
67 ip link add veth_vpp2 type veth peer name vpp2
68 ip link set dev vpp2 up
69 ip link set dev veth_vpp2 up netns vppns2
71 ip netns exec vppns1 \
74 ip addr add 6.0.1.2/24 dev veth_vpp1
75 ip route add 6.0.2.0/24 via 6.0.1.1
76 ip addr add 6:0:1::2/64 dev veth_vpp1
77 ip route add 6:0:2::0/64 via 6:0:1::1
80 ip netns exec vppns2 \
83 ip addr add 6.0.2.2/24 dev veth_vpp2
84 ip route add 6.0.1.0/24 via 6.0.2.1
85 ip addr add 6:0:2::2/64 dev veth_vpp2
86 ip route add 6:0:1::0/64 via 6:0:2::1
89 # generate config files
90 ./scripts/generate_config.py ${VPP_LITE_CONF} ${CFG_METHOD}
97 echo "* Selected configuration method: $CFG_METHOD"
98 if [ "$CFG_METHOD" == "cli" ] ; then
99 echo "exec ${VPP_LITE_CONF}/vpp1.cli" | nc 0 5002
100 echo "exec ${VPP_LITE_CONF}/vpp2.cli" | nc 0 5003
101 echo "exec ${VPP_LITE_CONF}/vpp3.cli" | nc 0 5004
102 elif [ "$CFG_METHOD" == "vat" ] ; then
103 ${VPP_API_TEST} chroot prefix vpp1 script in ${VPP_LITE_CONF}/vpp1.vat
104 ${VPP_API_TEST} chroot prefix vpp2 script in ${VPP_LITE_CONF}/vpp2.vat
105 ${VPP_API_TEST} chroot prefix vpp3 script in ${VPP_LITE_CONF}/vpp3.vat
108 echo "=== Invalid configuration method selected!"
109 echo "=== To resolve this set env variable CFG_METHOD to vat or cli."