Have one host generate 16K IPv6 echo requests with a random flow label and check that they are distributed between both multipath links according to the provided weights.
Signed-off-by: Ido Schimmel idosch@mellanox.com --- .../selftests/forwarding/router_multipath.sh | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+)
diff --git a/tools/testing/selftests/forwarding/router_multipath.sh b/tools/testing/selftests/forwarding/router_multipath.sh index 45c5fc0a6448..58f6e75c627e 100755 --- a/tools/testing/selftests/forwarding/router_multipath.sh +++ b/tools/testing/selftests/forwarding/router_multipath.sh @@ -219,12 +219,47 @@ multipath4_test() sysctl -w -q net.ipv4.fib_multipath_hash_policy=$hash_policy }
+multipath6_test() +{ + local t0_rp12 t0_rp13 t1_rp12 t1_rp13 + local weight_rp12=$1 weight_rp13=$2 + local packets_rp12 packets_rp13 + + ip route replace 2001:db8:2::/64 vrf vrf-r1 \ + nexthop via fe80:2::22 dev $rp12 weight $weight_rp12 \ + nexthop via fe80:3::23 dev $rp13 weight $weight_rp13 + + t0_rp12=$(link_stats_tx_packets_get $rp12) + t0_rp13=$(link_stats_tx_packets_get $rp13) + + # Generate 16384 echo requests, each with a random flow label. + for _ in $(seq 1 16384); do + ip vrf exec vrf-h1 ping 2001:db8:2::2 -F 0 -c 1 -q &> /dev/null + done + + t1_rp12=$(link_stats_tx_packets_get $rp12) + t1_rp13=$(link_stats_tx_packets_get $rp13) + + let "packets_rp12 = $t1_rp12 - $t0_rp12" + let "packets_rp13 = $t1_rp13 - $t0_rp13" + multipath_eval $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13 + + ip route replace 2001:db8:2::/64 vrf vrf-r1 \ + nexthop via fe80:2::22 dev $rp12 \ + nexthop via fe80:3::23 dev $rp13 +} + multipath_test() { echo "Performing IPv4 multipath tests" multipath4_test 1 1 multipath4_test 2 1 multipath4_test 11 45 + + echo "Performing IPv6 multipath tests" + multipath6_test 1 1 + multipath6_test 2 1 + multipath6_test 11 45 }
setup_prepare()