On 12/19/24 00:55, Lorenzo Bianconi wrote:
> Introduce ipv6_src and ipv6_dst to selection_fields column in
> Load_Balancer Logical_Router_Static_Route tables in order to properly
> load-balance IPv6 traffic if these fields are selected in group hash
> algorithm.
>
> Reported-at: https://issues.redhat.com/browse/FDP-1032
> Signed-off-by: Lorenzo Bianconi <[email protected]>
> ---
> Changes in v2:
> - add new load-balancer Dual stack system test
> ---
> ovn-nb.ovsschema | 9 +-
> ovn-nb.xml | 1 +
> tests/ovn.at | 6 +-
> tests/system-ovn.at | 304 +++++++++++++++++++++++++++++++++++++++++++-
> 4 files changed, 309 insertions(+), 11 deletions(-)
>
> diff --git a/ovn-nb.ovsschema b/ovn-nb.ovsschema
> index 09361920f..eb19e8d1a 100644
> --- a/ovn-nb.ovsschema
> +++ b/ovn-nb.ovsschema
> @@ -1,7 +1,7 @@
> {
> "name": "OVN_Northbound",
> - "version": "7.8.0",
> - "cksum": "3497747919 38626",
> + "version": "7.9.0",
> + "cksum": "89922206 38707",
> "tables": {
> "NB_Global": {
> "columns": {
> @@ -247,7 +247,7 @@
> "type": {"key": {"type": "string",
> "enum": ["set",
> ["eth_src", "eth_dst", "ip_src", "ip_dst",
> - "tp_src", "tp_dst"]]},
> + "ipv6_src", "ipv6_dst", "tp_src",
> "tp_dst"]]},
> "min": 0, "max": "unlimited"}},
> "options": {
> "type": {"key": "string",
> @@ -510,7 +510,8 @@
> "type": {"key": {"type": "string",
> "enum": ["set",
> ["eth_src", "eth_dst", "ip_proto", "ip_src",
> - "ip_dst", "tp_src", "tp_dst"]]},
> + "ip_dst", "ipv6_src", "ipv6_dst", "tp_src",
> + "tp_dst"]]},
> "min": 0, "max": "unlimited"}},
> "options": {
> "type": {"key": "string", "value": "string",
> diff --git a/ovn-nb.xml b/ovn-nb.xml
> index 8373ddb99..22ca760db 100644
> --- a/ovn-nb.xml
> +++ b/ovn-nb.xml
> @@ -3837,6 +3837,7 @@ or
> </p>
> <p>
> Example: <code>{ip_proto,ip_src,ip_dst}</code> for a 3-tuple match.
> + Example: <code>{ip_proto,ipv6_src,ipv6_dst}</code> for a IPv6
> match.
> Example: <code>{ip_proto,ip_src,ip_dst,tp_src,tp_dst}</code>
> for a 5-tuple match.
I still think we need a dual-stack example here as well for an LB with
both types of addresses.
> </p>
> diff --git a/tests/ovn.at b/tests/ovn.at
> index b12719895..75cfda9b0 100644
> --- a/tests/ovn.at
> +++ b/tests/ovn.at
> @@ -25659,7 +25659,7 @@ check ovn-nbctl lsp-set-options sw1-lr0
> router-port=lr0-sw1
>
> check ovn-nbctl lb-add lb1 [[2001::a]]:80 [[2001::3]]:80,[[2002::3]]:80
> OVN_LB_ID=$(ovn-nbctl --bare --column _uuid find load_balancer name=lb1)
> -check ovn-nbctl set load_balancer ${OVN_LB_ID}
> selection_fields="ip_dst,ip_src,tp_dst,tp_src"
> +check ovn-nbctl set load_balancer ${OVN_LB_ID}
> selection_fields="ipv6_dst,ipv6_src,tp_dst,tp_src"
> #
> check ovn-nbctl --wait=sb set load_balancer .
> ip_port_mappings:\"[[2001::3]]\"=\"sw0-p1:[[2001::2]]\"
> check ovn-nbctl --wait=sb set load_balancer .
> ip_port_mappings:\"[[2002::3]]\"=\"sw1-p1:[[2002::2]]\"
> @@ -25702,14 +25702,14 @@ OVS_WAIT_FOR_OUTPUT(
> ovn-sbctl dump-flows sw0 | grep ct_lb_mark | grep priority=120 | sed
> 's/table=..//'], 0,
> [dnl
> (ls_in_pre_stateful ), priority=120 , match=(reg0[[2]] == 1 && ip6.dst ==
> 2001::a && tcp.dst == 80), action=(xxreg1 = 2001::a; reg2[[0..15]] = 80;
> ct_lb_mark;)
> - (ls_in_lb ), priority=120 , match=(ct.new && ip6.dst == 2001::a
> && tcp.dst == 80), action=(xxreg1 = 2001::a; reg2[[0..15]] = 80;
> ct_lb_mark(backends=[[2001::3]]:80,[[2002::3]]:80;
> hash_fields="ip_dst,ip_src,tcp_dst,tcp_src");)
> + (ls_in_lb ), priority=120 , match=(ct.new && ip6.dst == 2001::a
> && tcp.dst == 80), action=(xxreg1 = 2001::a; reg2[[0..15]] = 80;
> ct_lb_mark(backends=[[2001::3]]:80,[[2002::3]]:80;
> hash_fields="ipv6_dst,ipv6_src,tcp_dst,tcp_src");)
> ])
>
> AT_CAPTURE_FILE([sbflows2])
> OVS_WAIT_FOR_OUTPUT(
> [ovn-sbctl dump-flows > sbflows2
> ovn-sbctl dump-flows lr0 | grep ct_lb_mark | grep priority=120 | sed
> 's/table=..//'], 0,
> - [ (lr_in_dnat ), priority=120 , match=(ct.new && !ct.rel && ip6
> && ip6.dst == 2001::a && tcp && tcp.dst == 80 &&
> is_chassis_resident("cr-lr0-public")),
> action=(ct_lb_mark(backends=[[2001::3]]:80,[[2002::3]]:80;
> hash_fields="ip_dst,ip_src,tcp_dst,tcp_src");)
> + [ (lr_in_dnat ), priority=120 , match=(ct.new && !ct.rel && ip6
> && ip6.dst == 2001::a && tcp && tcp.dst == 80 &&
> is_chassis_resident("cr-lr0-public")),
> action=(ct_lb_mark(backends=[[2001::3]]:80,[[2002::3]]:80;
> hash_fields="ipv6_dst,ipv6_src,tcp_dst,tcp_src");)
> ])
>
> # get the svc monitor mac.
> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
> index 19ec1eb8d..d5e858d83 100644
> --- a/tests/system-ovn.at
> +++ b/tests/system-ovn.at
> @@ -1755,10 +1755,10 @@
> tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd
> ])
>
> # Configure selection_fields.
> -check ovn-nbctl set load_balancer $lb2_uuid
> selection_fields="ip_src,ip_dst,tp_src,tp_dst"
> +check ovn-nbctl set load_balancer $lb2_uuid
> selection_fields="ipv6_src,ipv6_dst,tp_src,tp_dst"
> OVS_WAIT_UNTIL([
> test $(ovs-ofctl dump-groups br-int | \
> - grep "selection_method=hash,fields(ip_src,ip_dst,tcp_src,tcp_dst)" -c)
> -eq 2
> + grep "selection_method=hash,fields(ipv6_src,ipv6_dst,tcp_src,tcp_dst)"
> -c) -eq 2
> ])
>
> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> @@ -1789,10 +1789,10 @@ done
> # there should be only one conntrack entry.
> AT_CHECK([test $(ovs-appctl dpctl/dump-conntrack | grep fd03::2 -c) -eq 1])
>
> -check ovn-nbctl set load_balancer $lb2_uuid selection_fields="eth_src,ip_src"
> +check ovn-nbctl set load_balancer $lb2_uuid
> selection_fields="eth_src,ipv6_src"
> OVS_WAIT_UNTIL([
> test $(ovs-ofctl dump-groups br-int | \
> - grep "selection_method=hash,fields(eth_src,ip_src)" -c) -eq 2
> + grep "selection_method=hash,fields(eth_src,ipv6_src)" -c) -eq 2
> ])
>
> AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> @@ -1847,6 +1847,302 @@ OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
> patch-.*/d"])
> AT_CLEANUP
> ])
>
> +OVN_FOR_EACH_NORTHD([
> +AT_SETUP([load-balancing - Dual Stack])
> +AT_KEYWORDS([ovnlb])
> +
> +CHECK_CONNTRACK()
> +CHECK_CONNTRACK_NAT()
> +ovn_start
> +OVS_TRAFFIC_VSWITCHD_START()
> +ADD_BR([br-int])
> +
> +# Set external-ids in br-int needed for ovn-controller
> +ovs-vsctl \
> + -- set Open_vSwitch . external-ids:system-id=hv1 \
> + -- set Open_vSwitch .
> external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> + -- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
> + -- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
> + -- set bridge br-int fail-mode=secure
> other-config:disable-in-band=true
> +
> +# Start ovn-controller
> +start_daemon ovn-controller
> +
> +ovn-nbctl create Logical_Router name=R1
> +check ovn-nbctl ls-add foo
> +check ovn-nbctl ls-add bar
> +
> +# Connect foo to R1
> +check ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24 fd01::1/64
> +check ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
> + type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
> +
> +# Connect bar to R1
> +check ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 172.16.1.1/24 fd02::1/64
> +check ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
> + type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
> +
> +# Create logical port 'foo1' in switch 'foo'.
> +ADD_NAMESPACES(foo1)
> +ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
> + "192.168.1.1")
> +check ovn-nbctl lsp-add foo foo1 \
> +-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
> +
> +ADD_NAMESPACES(foo2)
> +ADD_VETH(foo2, foo2, br-int, "192.168.1.3/24", "f0:00:00:01:02:04", \
> + "192.168.1.1")
> +check ovn-nbctl lsp-add foo foo2 \
> +-- lsp-set-addresses foo2 "f0:00:00:01:02:04 192.168.1.3"
> +
> +ADD_NAMESPACES(foo6)
> +ADD_VETH(foo6, foo6, br-int, "fd01::2/64", "f0:00:00:02:02:03", \
> + "fd01::1", "nodad")
> +check ovn-nbctl lsp-add foo foo6 \
> +-- lsp-set-addresses foo6 "f0:00:00:02:02:03 fd01::2"
> +
> +ADD_NAMESPACES(foo7)
> +ADD_VETH(foo7, foo7, br-int, "fd01::3/64", "f0:00:00:02:02:04", \
> + "fd01::1", "nodad")
> +check ovn-nbctl lsp-add foo foo7 \
> +-- lsp-set-addresses foo7 "f0:00:00:02:02:04 fd01::3"
> +
> +# Create logical ports 'bar1', 'bar2', 'bar3' in switch 'bar'.
> +ADD_NAMESPACES(bar1)
> +ADD_VETH(bar1, bar1, br-int, "172.16.1.2/24", "f0:00:0f:01:02:03", \
> + "172.16.1.1")
> +check ovn-nbctl lsp-add bar bar1 \
> +-- lsp-set-addresses bar1 "f0:00:0f:01:02:03 172.16.1.2"
> +
> +ADD_NAMESPACES(bar6)
> +ADD_VETH(bar6, bar6, br-int, "fd02::2/64", "f0:00:0f:02:02:03", \
> + "fd02::1", "nodad")
> +check ovn-nbctl lsp-add bar bar6 \
> +-- lsp-set-addresses bar6 "f0:00:0f:02:02:03 fd02::2"
> +
> +ADD_NAMESPACES(bar2)
> +ADD_VETH(bar2, bar2, br-int, "172.16.1.3/24", "f0:00:0f:01:02:04", \
> + "172.16.1.1")
> +check ovn-nbctl lsp-add bar bar2 \
> +-- lsp-set-addresses bar2 "f0:00:0f:01:02:04 172.16.1.3"
> +
> +ADD_NAMESPACES(bar7)
> +ADD_VETH(bar7, bar7, br-int, "fd02::3/64", "f0:00:0f:02:02:04", \
> + "fd02::1", "nodad")
> +check ovn-nbctl lsp-add bar bar7 \
> +-- lsp-set-addresses bar7 "f0:00:0f:02:02:04 fd02::3"
> +
> +ADD_NAMESPACES(bar3)
> +ADD_VETH(bar3, bar3, br-int, "172.16.1.4/24", "f0:00:0f:01:02:05", \
> + "172.16.1.1")
> +check ovn-nbctl lsp-add bar bar3 \
> +-- lsp-set-addresses bar3 "f0:00:0f:01:02:05 172.16.1.4"
> +
> +ADD_NAMESPACES(bar8)
> +ADD_VETH(bar8, bar8, br-int, "fd02::4/64", "f0:00:0f:02:02:05", \
> + "fd02::1", "nodad")
> +check ovn-nbctl lsp-add bar bar8 \
> +-- lsp-set-addresses bar8 "f0:00:0f:02:02:05 fd02::4"
> +
> +# Config OVN load-balancer with a VIP.
> +check ovn-nbctl lb-add lb1 30.0.0.1:8080
> "172.16.1.2:80,172.16.1.3:80,172.16.1.4:80"
> +lb1_uuid=$(fetch_column nb:load_balancer _uuid name="lb1")
> +check ovn-nbctl set load_balancer $lb1_uuid
> vips:'"[[fd03::2]]:8090"'='"@<:@fd02::2@:>@:80,@<:@fd02::3@:>@:80,@<:@fd02::4@:>@:80"'
> +
> +check ovn-nbctl ls-lb-add foo lb1
> +
> +# Wait for ovn-controller to catch up.
> +check ovn-nbctl --wait=hv sync
> +
> +OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
> +grep 'nat(dst=172.16.1.4:80)'])
> +
> +# Start webservers in 'bar1', 'bar2' and 'bar3'.
> +OVS_START_L7([bar1], [http])
> +OVS_START_L7([bar2], [http])
> +OVS_START_L7([bar3], [http])
> +
> +OVS_START_L7([bar6], [http6])
> +OVS_START_L7([bar7], [http6])
> +OVS_START_L7([bar8], [http6])
A comment is missing for bar6 - bar8.
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +
> +dnl Test load-balancing that includes L4 ports in NAT.
> +dnl Each server should have at least one connection.
> +OVS_WAIT_FOR_OUTPUT([
> + for i in `seq 1 20`; do
> + NS_EXEC([foo1], [wget 30.0.0.1:8080 -t 5 -T 1 --retry-connrefused -v
> -o wget$i.log])
> + done
> + ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
> + sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +
> +OVS_WAIT_FOR_OUTPUT([
> +dnl Test load-balancing that includes L4 ports in NAT.
> +for i in `seq 1 10`; do
> + NS_EXEC([foo6], [wget http://[[fd03::2]]:8090 -t 5 -T 1
> --retry-connrefused -v -o wget$i.log])
> +done
> +dnl Each server should have at least one connection.
> +ovs-appctl dpctl/dump-conntrack | FORMAT_CT(fd03::2) | grep -v fe80 | \
> +sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::2,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::3,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::4,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +])
> +
> +# Configure selection_fields.
> +check ovn-nbctl set load_balancer $lb1_uuid
> selection_fields="ip_src,ip_dst,ipv6_src,ipv6_dst,tp_src,tp_dst"
> +OVS_WAIT_UNTIL([
> + test $(ovs-ofctl dump-groups br-int | \
> + grep
> "selection_method=hash,fields(ip_src,ip_dst,ipv6_src,ipv6_dst,tcp_src,tcp_dst)"
> -c) -eq 2
> +])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +
> +# dnl Test load-balancing that includes L4 ports in NAT.
> +# dnl Each server should have at least one connection.
> +OVS_WAIT_FOR_OUTPUT([
> + for i in `seq 1 20`; do
> + NS_EXEC([foo1], [wget 30.0.0.1:8080 -t 5 -T 1 --retry-connrefused -v
> -o wget$i.log])
> + done
> + ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
> + sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +
> +OVS_WAIT_FOR_OUTPUT([
> +dnl Test load-balancing that includes L4 ports in NAT.
> +for i in `seq 1 10`; do
> + NS_EXEC([foo6], [wget http://[[fd03::2]]:8090 -t 5 -T 1
> --retry-connrefused -v -o wget$i.log])
> +done
> +dnl Each server should have at least one connection.
> +ovs-appctl dpctl/dump-conntrack | FORMAT_CT(fd03::2) | grep -v fe80 | \
> +sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::2,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::3,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +tcp,orig=(src=fd01::2,dst=fd03::2,sport=<cleared>,dport=<cleared>),reply=(src=fd02::4,dst=fd01::2,sport=<cleared>,dport=<cleared>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> +])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +
> +echo "foo" > foo
> +for i in `seq 1 20`; do
> + echo Request $i
> + ip netns exec foo1 nc -p 30000 30.0.0.1 8080 < foo
> +done
> +
> +# dnl Only one backend should be chosen.
> +AT_CHECK([test $(ovs-appctl dpctl/dump-conntrack | grep 30.0.0.1 -c) -eq 1])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +for i in `seq 1 20`; do
> + echo Request $i
> + ip netns exec foo6 nc -6 -p 30000 fd03::2 8090 < foo
> +done
> +
> +# dnl Only one backend should be chosen.
> +AT_CHECK([test $(ovs-appctl dpctl/dump-conntrack | grep fd03::2 -c) -eq 1])
> +
> +check ovn-nbctl set load_balancer $lb1_uuid
> selection_fields="ip_src,ip_dst,ipv6_src,ipv6_dst"
> +OVS_WAIT_UNTIL([
> + test $(ovs-ofctl dump-groups br-int | \
> + grep "selection_method=hash,fields(ip_src,ip_dst,ipv6_src,ipv6_dst)" -c)
> -eq 2
> +])
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +for i in `seq 1 20`; do
> + NS_EXEC([foo1], [wget 30.0.0.1:8080 -t 5 -T 1 --retry-connrefused -v -o
> wget1$i.log])
> + NS_EXEC([foo2], [wget 30.0.0.1:8080 -t 5 -T 1 --retry-connrefused -v -o
> wget2$i.log])
> +done
> +
> +bar1_ct=$(ovs-appctl dpctl/dump-conntrack | grep 172.16.1.2 -c)
> +bar2_ct=$(ovs-appctl dpctl/dump-conntrack | grep 172.16.1.3 -c)
> +bar3_ct=$(ovs-appctl dpctl/dump-conntrack | grep 172.16.1.4 -c)
> +
> +if [[ "$bar1_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 40])
We just checked that it is 40, no need to do that twice. Same for other 'if's
below.
However, our selection fileds include ht e IP source address, why only one
backend receives all the traffic?
> + AT_CHECK([test $bar2_ct -eq 0])
> + AT_CHECK([test $bar3_ct -eq 0])
> +else
> + AT_CHECK([test $bar1_ct -eq 0])
> +fi
> +
> +if [[ "$bar2_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 0])
> + AT_CHECK([test $bar2_ct -eq 40])
> + AT_CHECK([test $bar3_ct -eq 0])
> +else
> + AT_CHECK([test $bar2_ct -eq 0])
> +fi
> +
> +if [[ "$bar3_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 0])
> + AT_CHECK([test $bar2_ct -eq 0])
> + AT_CHECK([test $bar3_ct -eq 40])
> +else
> + AT_CHECK([test $bar3_ct -eq 0])
> +fi
> +
> +AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> +for i in `seq 1 20`; do
> + NS_EXEC([foo6], [wget http://[[fd03::2]]:8090 -t 5 -T 1
> --retry-connrefused -v -o wget1$i.log])
> + NS_EXEC([foo7], [wget http://[[fd03::2]]:8090 -t 5 -T 1
> --retry-connrefused -v -o wget2$i.log])
> +done
> +
> +bar1_ct=$(ovs-appctl dpctl/dump-conntrack | grep fd02::2 -c)
> +bar2_ct=$(ovs-appctl dpctl/dump-conntrack | grep fd02::3 -c)
> +bar3_ct=$(ovs-appctl dpctl/dump-conntrack | grep fd02::4 -c)
> +
> +if [[ "$bar1_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 40])
> + AT_CHECK([test $bar2_ct -eq 0])
> + AT_CHECK([test $bar3_ct -eq 0])
> +else
> + AT_CHECK([test $bar1_ct -eq 0])
> +fi
> +
> +if [[ "$bar2_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 0])
> + AT_CHECK([test $bar2_ct -eq 40])
> + AT_CHECK([test $bar3_ct -eq 0])
> +else
> + AT_CHECK([test $bar2_ct -eq 0])
> +fi
> +
> +if [[ "$bar3_ct" == "40" ]]; then
> + AT_CHECK([test $bar1_ct -eq 0])
> + AT_CHECK([test $bar2_ct -eq 0])
> + AT_CHECK([test $bar3_ct -eq 40])
> +else
> + AT_CHECK([test $bar3_ct -eq 0])
> +fi
> +
> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> +
> +as ovn-sb
> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> +
> +as ovn-nb
> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> +
> +as northd
> +OVS_APP_EXIT_AND_WAIT([ovn-northd])
> +
> +as
> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d"])
> +AT_CLEANUP
> +])
> +
> OVN_FOR_EACH_NORTHD([
> AT_SETUP([load-balancing - same subnet.])
> AT_KEYWORDS([ovnlb])
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