> On Fri, Dec 22, 2023 at 11:27 AM Lorenzo Bianconi
> <[email protected]> wrote:
> >
> > Introduce specif flows for E/W ICMPv{4,6} packets if tunnelled packets
> > do not fit path MTU. This patch enable PMTUD for East/West Geneve traffic.
> >
> > Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2241711
> > Signed-off-by: Lorenzo Bianconi <[email protected]>
>
> Hi Lorenzo,
>
> Thanks for the patch. Please see below for a few comments.
Hi Numan,
thx for the review. Few comments inline.
Regards,
Lorenzo
>
>
[...]
> > +/* Following flows are used to manage traffic redirected by the kernel
> > + * (e.g. ICMP errors packets) that enter the cluster from the geneve ports
> > + */
> > +static void
> > +build_lrouter_icmp_packet_toobig_admin_flows(
> > + struct ovn_port *op, struct hmap *lflows,
> > + struct ds *match, struct ds *actions)
> > +{
> > + ovs_assert(op->nbrp);
> > +
> > + if (is_l3dgw_port(op)) {
> > + ds_clear(match);
> > + ds_put_format(match,
> > + "((ip4 && icmp4.type == 3 && icmp4.code == 4) ||"
> > + " (ip6 && icmp6.type == 2 && icmp6.code == 0)) && "
> > + "eth.dst == %s && !is_chassis_resident(%s)",
> > + op->nbrp->mac, op->cr_port->json_key);
> > + ds_clear(actions);
> > + ds_put_format(actions, "outport = inport; inport = %s; next;",
> > + op->json_key);
> > + ovn_lflow_add(lflows, op->od, S_ROUTER_IN_ADMISSION, 120,
> > + ds_cstr(match), ds_cstr(actions));
> > + }
> > +
> > + /* default flow */
> > + ovn_lflow_add(lflows, op->od, S_ROUTER_IN_ADMISSION, 110,
> > + "(ip4 && icmp4.type == 3 && icmp4.code == 4) || "
> > + "(ip6 && icmp6.type == 2 && icmp6.code == 0)", "next; ");
> > +}
> > +
>
> I don't think there is a need for default flow. If I understand
> correctly, we are trying to handle
> the scenario when the kernel generates the icmp needs frag error
> packet. For the normal case i.e icmp
> needs a frag error packet not generated by the kernel, it should
> continue the normal flow.
Reviewing the code I think it is wrong, but for icmp error "packet too big"
traffic hitting a gw router port I think we need a 'default' flow since if the
port is "local" to the hv we need to set the inport from the l3dgw_port port to
the regular router one. Do you agree? (We need this flow just if
is_l3dgw_port() is true).
>
>
> > +static void
> > +build_lswitch_icmp_packet_toobig_admin_flows(
> > + struct ovn_port *op, struct hmap *lflows,
> > + struct ds *match, struct ds *actions)
> > +{
> > + ovs_assert(op->nbsp);
> > +
> > + if (lsp_is_router(op->nbsp)) {
> > + return;
> > + }
> > +
> > + struct ovn_datapath *od = op->od;
> > + for (int i = 0; i < od->n_router_ports; i++) {
> > + struct ovn_port *peer = od->router_ports[i]->peer;
> > + if (!peer) {
> > + continue;
> > + }
> > +
> > + ds_clear(match);
> > + char *rp_port =
> > + is_l3dgw_port(peer) ? peer->cr_port->json_key : peer->json_key;
> > + ds_put_format(match,
> > + "((ip4 && icmp4.type == 3 && icmp4.code == 4) ||"
> > + " (ip6 && icmp6.type == 2 && icmp6.code == 0)) && "
> > + "eth.dst == %s && !is_chassis_resident(%s)",
> > + peer->nbrp->mac, rp_port);
> > + ds_clear(actions);
> > + ds_put_format(actions, "outport = %s; inport = %s; output;",
> > + od->router_ports[i]->json_key, op->json_key);
> > + ovn_lflow_add(lflows, od, S_SWITCH_IN_CHECK_PORT_SEC, 120,
> > + ds_cstr(match), ds_cstr(actions));
> > + }
>
> I think with this we will end up adding two logical flows for every
> logical port in the logical switch.
> I don't think that's necessary.
>
> I think we should add the logical flow only for logical switch ports
> of type router.
> The function should return immediately if !lsp_is_router(op->nbsp).
ack, agree. I will fix it.
>
> I think you can also match on the "inport == <lrp" in the first
> logical flow of this function.
If we use the inport as match I think it is hard to distinguish between the
locally generated ICMP 'packet too big' traffic (generated by the kernel) and
ICMP 'packet too big' sent by a remote node. Am I wrong or am I missing
something?
>
> Also I don't think there is a need for the default flow below.
> The below logical flow by-passes the port security check which could
> be exploited by a rogue pod/VM.
ack, I will fix it.
>
> Let me know if my suggestions don't work.
>
> Thanks
> Numan
>
>
> > +
> > + /* default flow */
> > + ovn_lflow_add(lflows, op->od, S_SWITCH_IN_CHECK_PORT_SEC, 110,
> > + "(ip4 && icmp4.type == 3 && icmp4.code == 4) || "
> > + "(ip6 && icmp6.type == 2 && icmp6.code == 0)", "next; ");
> > +}
> > +
> > static void
> > build_lrouter_force_snat_flows_op(struct ovn_port *op,
> > struct hmap *lflows,
> > @@ -16161,6 +16230,7 @@ build_lswitch_and_lrouter_iterate_by_lsp(struct
> > ovn_port *op,
> > build_lswitch_dhcp_options_and_response(op, lflows, meter_groups);
> > build_lswitch_external_port(op, lflows);
> > build_lswitch_ip_unicast_lookup(op, lflows, actions, match);
> > + build_lswitch_icmp_packet_toobig_admin_flows(op, lflows, match,
> > actions);
> >
> > /* Build Logical Router Flows. */
> > build_ip_routing_flows_for_router_type_lsp(op, lr_ports, lflows);
> > @@ -16197,6 +16267,8 @@ build_lswitch_and_lrouter_iterate_by_lrp(struct
> > ovn_port *op,
> > &lsi->match, &lsi->actions,
> > lsi->meter_groups);
> > build_lrouter_force_snat_flows_op(op, lsi->lflows, &lsi->match,
> > &lsi->actions);
> > + build_lrouter_icmp_packet_toobig_admin_flows(op, lsi->lflows,
> > &lsi->match,
> > + &lsi->actions);
> > }
> >
> > static void *
> > diff --git a/northd/ovn-northd.8.xml b/northd/ovn-northd.8.xml
> > index 97718821f..85576a845 100644
> > --- a/northd/ovn-northd.8.xml
> > +++ b/northd/ovn-northd.8.xml
> > @@ -372,6 +372,20 @@
> >
> > <h3>Ingress Table 1: Ingress Port Security - Apply</h3>
> >
> > + <p>
> > + For each logical switch port <var>P</var> a priority-120 flow that
> > + matches icmp{4,6} error 'packet too big' and <code>eth.dst ==
> > + <var>D</var> && !is_chassis_resident(<var>RP</var>)</code>
> > where
> > + <var>D</var> is the peer logical router port <var>RP</var> mac
> > address,
> > + stores <var>RP</var> peer port as outport, stores <var>P</var> as
> > inport
> > + and forward the packet to the egress pipeline.
> > + </p>
> > +
> > + <p>
> > + This table adds a priority-110 flow that matches icmp{4,6} error
> > 'packet
> > + too big' to forward the packet to the next stage in the pipeline.
> > + </p>
> > +
> > <p>
> > This table drops the packets if the port security check failed
> > in the previous stage i.e the register bit
> > @@ -2463,6 +2477,21 @@ output;
> > (LBs, NAT).
> > </p>
> >
> > + <p>
> > + For each gateway port <var>GW</var> on a distributed logical
> > router
> > + a priority-120 flow that matches icmp{4,6} error 'packet too
> > big' and
> > + <code>eth.dst == <var>D</var> &&
> > !is_chassis_resident(<var>
> > + cr-GW</var>)</code> where <var>D</var> is the gateway port mac
> > + address and <var>cr-GW</var> is the chassis resident port of
> > + <var>GW</var>, swap inport and outport and stores <var>GW</var>
> > + as inport.
> > + </p>
> > +
> > + <p>
> > + This table adds a priority-110 flow that matches icmp{4,6} error
> > 'packet
> > + too big' to forward the packet to the next stage in the pipeline.
> > + </p>
> > +
> > <p>
> > For a distributed logical router or for gateway router where
> > the port is configured with <code>options:gateway_mtu</code>
> > diff --git a/tests/multinode.at b/tests/multinode.at
> > index 2b199b4bc..772134b7d 100644
> > --- a/tests/multinode.at
> > +++ b/tests/multinode.at
> > @@ -42,7 +42,6 @@ M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3
> > -i 0.3 -w 2 10.0.0.4 | F
> > 3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > ])
> >
> > -
> > # Create the second logical switch with one port
> > check multinode_nbctl ls-add sw1
> > check multinode_nbctl lsp-add sw1 sw1-port1
> > @@ -72,3 +71,350 @@ M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3
> > -i 0.3 -w 2 20.0.0.3 | F
> > ])
> >
> > AT_CLEANUP
> > +
> > +AT_SETUP([ovn multinode pmtu - distributed router])
> > +
> > +# Check that ovn-fake-multinode setup is up and running
> > +check_fake_multinode_setup
> > +
> > +# Delete the multinode NB and OVS resources before starting the test.
> > +cleanup_multinode_resources
> > +
> > +m_as ovn-chassis-1 ip link del sw0p1-p
> > +m_as ovn-chassis-2 ip link del sw0p2-p
> > +m_as ovn-chassis-2 ip link del sw1p1-p
> > +
> > +# Reset geneve tunnels
> > +for c in ovn-chassis-1 ovn-chassis-2 ovn-gw-1
> > +do
> > + m_as $c ovs-vsctl set open . external-ids:ovn-encap-type=geneve
> > +done
> > +
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q genev_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q genev_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-gw-1 ip link show | grep -q genev_sys])
> > +
> > +# Test East-West switching
> > +check multinode_nbctl ls-add sw0
> > +check multinode_nbctl lsp-add sw0 sw0-port1
> > +check multinode_nbctl lsp-set-addresses sw0-port1 "50:54:00:00:00:03
> > 10.0.0.3 1000::3"
> > +check multinode_nbctl lsp-add sw0 sw0-port2
> > +check multinode_nbctl lsp-set-addresses sw0-port2 "50:54:00:00:00:04
> > 10.0.0.4 1000::4"
> > +
> > +m_as ovn-chassis-1 /data/create_fake_vm.sh sw0-port1 sw0p1
> > 50:54:00:00:00:03 10.0.0.3 24 10.0.0.1 1000::3/64 1000::a
> > +m_as ovn-chassis-2 /data/create_fake_vm.sh sw0-port2 sw0p2
> > 50:54:00:00:00:04 10.0.0.4 24 10.0.0.1 1000::4/64 1000::a
> > +
> > +m_wait_for_ports_up
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 10.0.0.4 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +# Create the second logical switch with one port
> > +check multinode_nbctl ls-add sw1
> > +check multinode_nbctl lsp-add sw1 sw1-port1
> > +check multinode_nbctl lsp-set-addresses sw1-port1 "40:54:00:00:00:03
> > 20.0.0.3 2000::3"
> > +
> > +# Create a logical router and attach both logical switches
> > +check multinode_nbctl lr-add lr0
> > +check multinode_nbctl lrp-add lr0 lr0-sw0 00:00:00:00:ff:01 10.0.0.1/24
> > 1000::a/64
> > +check multinode_nbctl lsp-add sw0 sw0-lr0
> > +check multinode_nbctl lsp-set-type sw0-lr0 router
> > +check multinode_nbctl lsp-set-addresses sw0-lr0 router
> > +check multinode_nbctl lsp-set-options sw0-lr0 router-port=lr0-sw0
> > +
> > +check multinode_nbctl lrp-add lr0 lr0-sw1 00:00:00:00:ff:02 20.0.0.1/24
> > 2000::a/64
> > +check multinode_nbctl lsp-add sw1 sw1-lr0
> > +check multinode_nbctl lsp-set-type sw1-lr0 router
> > +check multinode_nbctl lsp-set-addresses sw1-lr0 router
> > +check multinode_nbctl lsp-set-options sw1-lr0 router-port=lr0-sw1
> > +
> > +m_as ovn-chassis-2 /data/create_fake_vm.sh sw1-port1 sw1p1
> > 40:54:00:00:00:03 20.0.0.3 24 20.0.0.1 2000::3/64 2000::a
> > +
> > +# create exteranl connection for N/S traffic
> > +check multinode_nbctl ls-add public
> > +check multinode_nbctl lsp-add public ln-lublic
> > +check multinode_nbctl lsp-set-type ln-lublic localnet
> > +check multinode_nbctl lsp-set-addresses ln-lublic unknown
> > +check multinode_nbctl lsp-set-options ln-lublic network_name=public
> > +
> > +check multinode_nbctl lrp-add lr0 lr0-public 00:11:22:00:ff:01
> > 172.20.0.100/24
> > +check multinode_nbctl lsp-add public public-lr0
> > +check multinode_nbctl lsp-set-type public-lr0 router
> > +check multinode_nbctl lsp-set-addresses public-lr0 router
> > +check multinode_nbctl lsp-set-options public-lr0 router-port=lr0-public
> > +check multinode_nbctl lrp-set-gateway-chassis lr0-public ovn-gw-1 10
> > +check multinode_nbctl lr-route-add lr0 0.0.0.0/0 172.20.0.1
> > +
> > +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 10.0.0.0/24
> > +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 20.0.0.0/24
> > +
> > +# create some ACLs
> > +check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6'
> > allow-related
> > +check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6'
> > allow-related
> > +
> > +m_as ovn-gw-1 ip netns add ovn-ext0
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext0 -- set interface ext0
> > type=internal
> > +m_as ovn-gw-1 ip link set ext0 netns ovn-ext0
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip link set ext0 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip addr add 172.20.0.1/24 dev ext0
> > +
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext1 -- set interface ext1
> > type=internal
> > +m_as ovn-gw-1 ip link set ext1 netns ovn-ext0
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip link set ext1 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip addr add 172.20.1.1/24 dev ext1
> > +
> > +m_as ovn-gw-1 ip netns add ovn-ext2
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext2 -- set interface ext2
> > type=internal
> > +m_as ovn-gw-1 ip link set ext2 netns ovn-ext2
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip link set ext2 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip addr add 172.20.1.2/24 dev ext2
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip route add default via 172.20.1.1
> > dev ext2
> > +
> > +m_as ovn-gw-1 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +m_as ovn-chassis-1 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +m_as ovn-chassis-2 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +
> > +m_wait_for_ports_up sw1-port1
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 20.0.0.3 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +# Change ptmu for the geneve tunnel
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1200 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do
> > 20.0.0.3 2>&1 |grep -q "message too long, mtu=1142"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1400 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping6 -c 5 -s 1450 -M do
> > 2000::3 2>&1 |grep -q "message too long, mtu: 1342"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 172.20.1.2 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-gw-1], [ovn-ext0], [ip link set dev ext1 mtu 1000])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 10 -s 1300 -M do
> > 172.20.1.2 2>&1 |grep -q "mtu = 1000"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 172.20.1.2 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +# Create vxlan tunnels
> > +for c in ovn-chassis-1 ovn-chassis-2 ovn-gw-1
> > +do
> > + m_as $c ovs-vsctl set open . external-ids:ovn-encap-type=vxlan
> > +done
> > +
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q vxlan_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q vxlan_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-gw-1 ip link show | grep -q vxlan_sys])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1200 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 20.0.0.3 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do
> > 20.0.0.3 2>&1 |grep -q "message too long, mtu=1150"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +M_NS_CHECK_EXEC([ovn-gw-1], [ovn-ext0], [ip link set dev ext1 mtu 1100])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 172.20.1.2 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 20 -i 0.5 -s 1300 -M do
> > 172.20.1.2 2>&1 |grep -q "mtu = 1150"])
> > +
> > +AT_CLEANUP
> > +
> > +AT_SETUP([ovn multinode pmtu - gw_router_port])
> > +
> > +# Check that ovn-fake-multinode setup is up and running
> > +check_fake_multinode_setup
> > +
> > +# Delete the multinode NB and OVS resources before starting the test.
> > +cleanup_multinode_resources
> > +
> > +m_as ovn-chassis-1 ip link del sw0p1-p
> > +m_as ovn-chassis-2 ip link del sw0p2-p
> > +m_as ovn-chassis-2 ip link del sw1p1-p
> > +
> > +# Reset geneve tunnels
> > +for c in ovn-chassis-1 ovn-chassis-2 ovn-gw-1
> > +do
> > + m_as $c ovs-vsctl set open . external-ids:ovn-encap-type=geneve
> > +done
> > +
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q genev_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q genev_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-gw-1 ip link show | grep -q genev_sys])
> > +
> > +# Test East-West switching
> > +check multinode_nbctl ls-add sw0
> > +check multinode_nbctl lsp-add sw0 sw0-port1
> > +check multinode_nbctl lsp-set-addresses sw0-port1 "50:54:00:00:00:03
> > 10.0.0.3 1000::3"
> > +check multinode_nbctl lsp-add sw0 sw0-port2
> > +check multinode_nbctl lsp-set-addresses sw0-port2 "50:54:00:00:00:04
> > 10.0.0.4 1000::4"
> > +
> > +m_as ovn-chassis-1 /data/create_fake_vm.sh sw0-port1 sw0p1
> > 50:54:00:00:00:03 10.0.0.3 24 10.0.0.1 1000::3/64 1000::a
> > +m_as ovn-chassis-2 /data/create_fake_vm.sh sw0-port2 sw0p2
> > 50:54:00:00:00:04 10.0.0.4 24 10.0.0.1 1000::4/64 1000::a
> > +
> > +m_wait_for_ports_up
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 10.0.0.4 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +# Create the second logical switch with one port
> > +check multinode_nbctl ls-add sw1
> > +check multinode_nbctl lsp-add sw1 sw1-port1
> > +check multinode_nbctl lsp-set-addresses sw1-port1 "40:54:00:00:00:03
> > 20.0.0.3 2000::3"
> > +
> > +# Create a logical router and attach both logical switches
> > +check multinode_nbctl lr-add lr0
> > +check multinode_nbctl lrp-add lr0 lr0-sw0 00:00:00:00:ff:01 10.0.0.1/24
> > 1000::a/64
> > +check multinode_nbctl lsp-add sw0 sw0-lr0
> > +check multinode_nbctl lsp-set-type sw0-lr0 router
> > +check multinode_nbctl lsp-set-addresses sw0-lr0 router
> > +check multinode_nbctl lsp-set-options sw0-lr0 router-port=lr0-sw0
> > +
> > +check multinode_nbctl lrp-add lr0 lr0-sw1 00:00:00:00:ff:02 20.0.0.1/24
> > 2000::a/64
> > +check multinode_nbctl lsp-add sw1 sw1-lr0
> > +check multinode_nbctl lsp-set-type sw1-lr0 router
> > +check multinode_nbctl lsp-set-addresses sw1-lr0 router
> > +check multinode_nbctl lsp-set-options sw1-lr0 router-port=lr0-sw1
> > +
> > +m_as ovn-chassis-2 /data/create_fake_vm.sh sw1-port1 sw1p1
> > 40:54:00:00:00:03 20.0.0.3 24 20.0.0.1 2000::3/64 2000::a
> > +
> > +# create exteranl connection for N/S traffic
> > +check multinode_nbctl ls-add public
> > +check multinode_nbctl lsp-add public ln-lublic
> > +check multinode_nbctl lsp-set-type ln-lublic localnet
> > +check multinode_nbctl lsp-set-addresses ln-lublic unknown
> > +check multinode_nbctl lsp-set-options ln-lublic network_name=public
> > +
> > +check multinode_nbctl lrp-add lr0 lr0-public 00:11:22:00:ff:01
> > 172.20.0.100/24
> > +check multinode_nbctl lsp-add public public-lr0
> > +check multinode_nbctl lsp-set-type public-lr0 router
> > +check multinode_nbctl lsp-set-addresses public-lr0 router
> > +check multinode_nbctl lsp-set-options public-lr0 router-port=lr0-public
> > +check multinode_nbctl lrp-set-gateway-chassis lr0-public ovn-gw-1 10
> > +check multinode_nbctl lr-route-add lr0 0.0.0.0/0 172.20.0.1
> > +
> > +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 10.0.0.0/24
> > +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 20.0.0.0/24
> > +
> > +check multinode_nbctl lrp-set-gateway-chassis lr0-sw0 ovn-chassis-1 10
> > +check multinode_nbctl lrp-set-gateway-chassis lr0-sw1 ovn-chassis-2 10
> > +
> > +# create some ACLs
> > +check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6'
> > allow-related
> > +check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6'
> > allow-related
> > +
> > +m_as ovn-gw-1 ip netns add ovn-ext0
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext0 -- set interface ext0
> > type=internal
> > +m_as ovn-gw-1 ip link set ext0 netns ovn-ext0
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip link set ext0 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip addr add 172.20.0.1/24 dev ext0
> > +
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext1 -- set interface ext1
> > type=internal
> > +m_as ovn-gw-1 ip link set ext1 netns ovn-ext0
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip link set ext1 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext0 ip addr add 172.20.1.1/24 dev ext1
> > +
> > +m_as ovn-gw-1 ip netns add ovn-ext2
> > +m_as ovn-gw-1 ovs-vsctl add-port br-ex ext2 -- set interface ext2
> > type=internal
> > +m_as ovn-gw-1 ip link set ext2 netns ovn-ext2
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip link set ext2 up
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip addr add 172.20.1.2/24 dev ext2
> > +m_as ovn-gw-1 ip netns exec ovn-ext2 ip route add default via 172.20.1.1
> > dev ext2
> > +
> > +m_as ovn-gw-1 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +m_as ovn-chassis-1 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +m_as ovn-chassis-2 ovs-vsctl set open .
> > external-ids:ovn-bridge-mappings=public:br-ex
> > +
> > +m_wait_for_ports_up sw1-port1
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 20.0.0.3 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1200 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do
> > 20.0.0.3 2>&1 |grep -q "message too long, mtu=1142"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1400 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping6 -c 5 -s 1450 -M do
> > 2000::3 2>&1 |grep -q "message too long, mtu: 1342"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 172.20.1.2 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-gw-1], [ovn-ext0], [ip link set dev ext1 mtu 1100])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 20 -i 0.5 -s 1300 -M do
> > 172.20.1.2 2>&1 |grep -q "mtu = 1100"])
> > +
> > +# Create vxlan tunnels
> > +for c in ovn-chassis-1 ovn-chassis-2 ovn-gw-1
> > +do
> > + m_as $c ovs-vsctl set open . external-ids:ovn-encap-type=vxlan
> > +done
> > +
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q vxlan_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q vxlan_sys])
> > +OVS_WAIT_UNTIL([m_as ovn-gw-1 ip link show | grep -q vxlan_sys])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1200 dev eth1
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 20.0.0.3 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do
> > 20.0.0.3 2>&1 |grep -q "message too long, mtu=1150"])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev
> > sw0p1])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via
> > 10.0.0.1 dev sw0p1])
> > +
> > +M_NS_CHECK_EXEC([ovn-gw-1], [ovn-ext0], [ip link set dev ext1 mtu 1100])
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2
> > 172.20.1.2 | FORMAT_PING], \
> > +[0], [dnl
> > +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> > +])
> > +
> > +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 20 -i 0.5 -s 1300 -M do
> > 172.20.1.2 2>&1 |grep -q "mtu = 1150"])
> > +
> > +AT_CLEANUP
> > diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> > index a267daca2..223e53991 100644
> > --- a/tests/ovn-northd.at
> > +++ b/tests/ovn-northd.at
> > @@ -6492,6 +6492,9 @@ AT_CAPTURE_FILE([lrflows])
> >
> > # Check the flows in lr_in_admission stage
> > AT_CHECK([grep lr_in_admission lrflows | grep cr-DR | sort], [0], [dnl
> > + table=0 (lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 02:ac:10:01:00:01 &&
> > !is_chassis_resident("cr-DR-S1")), action=(outport = inport; inport =
> > "DR-S1"; next;)
> > + table=0 (lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 03:ac:10:01:00:01 &&
> > !is_chassis_resident("cr-DR-S2")), action=(outport = inport; inport =
> > "DR-S2"; next;)
> > + table=0 (lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 04:ac:10:01:00:01 &&
> > !is_chassis_resident("cr-DR-S3")), action=(outport = inport; inport =
> > "DR-S3"; next;)
> > table=0 (lr_in_admission ), priority=50 , match=(eth.dst ==
> > 02:ac:10:01:00:01 && inport == "DR-S1" && is_chassis_resident("cr-DR-S1")),
> > action=(xreg0[[0..47]] = 02:ac:10:01:00:01; next;)
> > table=0 (lr_in_admission ), priority=50 , match=(eth.dst ==
> > 03:ac:10:01:00:01 && inport == "DR-S2" && is_chassis_resident("cr-DR-S2")),
> > action=(xreg0[[0..47]] = 03:ac:10:01:00:01; next;)
> > table=0 (lr_in_admission ), priority=50 , match=(eth.dst ==
> > 04:ac:10:01:00:01 && inport == "DR-S3" && is_chassis_resident("cr-DR-S3")),
> > action=(xreg0[[0..47]] = 04:ac:10:01:00:01; next;)
> > @@ -6551,6 +6554,7 @@ AT_CAPTURE_FILE([lrflows])
> >
> > # Check the flows in lr_in_admission stage
> > AT_CHECK([grep lr_in_admission lrflows | grep lrp1 | sed
> > 's/table=../table=??/' | sort], [0], [dnl
> > + table=??(lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 00:00:00:00:00:01 &&
> > !is_chassis_resident("cr-lrp1")), action=(outport = inport; inport =
> > "lrp1"; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.dst ==
> > 00:00:00:00:00:01 && inport == "lrp1" && is_chassis_resident("cr-lrp1")),
> > action=(xreg0[[0..47]] = 00:00:00:00:00:01; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.mcast &&
> > inport == "lrp1"), action=(xreg0[[0..47]] = 00:00:00:00:00:01; next;)
> > ])
> > @@ -6572,6 +6576,7 @@ AT_CAPTURE_FILE([lrflows])
> >
> > # Check the flows in lr_in_admission stage
> > AT_CHECK([grep lr_in_admission lrflows | grep lrp1 | sed
> > 's/table=../table=??/' | sort], [0], [dnl
> > + table=??(lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 00:00:00:00:00:01 &&
> > !is_chassis_resident("cr-lrp1")), action=(outport = inport; inport =
> > "lrp1"; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.dst ==
> > 00:00:00:00:00:01 && inport == "lrp1"), action=(xreg0[[0..47]] =
> > 00:00:00:00:00:01; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.mcast &&
> > inport == "lrp1"), action=(xreg0[[0..47]] = 00:00:00:00:00:01; next;)
> > ])
> > @@ -6590,6 +6595,7 @@ AT_CAPTURE_FILE([lrflows])
> >
> > # Check the flows in lr_in_admission stage
> > AT_CHECK([grep lr_in_admission lrflows | grep lrp1 | sed
> > 's/table=../table=??/' | sort], [0], [dnl
> > + table=??(lr_in_admission ), priority=120 , match=(((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)) && eth.dst == 00:00:00:00:00:01 &&
> > !is_chassis_resident("cr-lrp1")), action=(outport = inport; inport =
> > "lrp1"; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.dst ==
> > 00:00:00:00:00:01 && inport == "lrp1" && is_chassis_resident("cr-lrp1")),
> > action=(xreg0[[0..47]] = 00:00:00:00:00:01; next;)
> > table=??(lr_in_admission ), priority=50 , match=(eth.mcast &&
> > inport == "lrp1"), action=(xreg0[[0..47]] = 00:00:00:00:00:01; next;)
> > ])
> > @@ -8343,6 +8349,9 @@ AT_CHECK([cat sw0flows | grep -e port_sec -e
> > ls_in_l2_lkup -e ls_in_l2_unknown |
> > sort | sed 's/table=../table=??/' ], [0], [dnl
> > table=??(ls_in_check_port_sec), priority=100 , match=(eth.src[[40]]),
> > action=(drop;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(vlan.present),
> > action=(drop;)
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > table=??(ls_in_check_port_sec), priority=50 , match=(1),
> > action=(reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_apply_port_sec), priority=0 , match=(1), action=(next;)
> > table=??(ls_in_apply_port_sec), priority=50 , match=(reg0[[15]] == 1),
> > action=(drop;)
> > @@ -8369,6 +8378,9 @@ AT_CHECK([cat sw0flows | grep -e port_sec -e
> > ls_in_l2_lkup -e ls_in_l2_unknown |
> > sort | sed 's/table=../table=??/' ], [0], [dnl
> > table=??(ls_in_check_port_sec), priority=100 , match=(eth.src[[40]]),
> > action=(drop;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(vlan.present),
> > action=(drop;)
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > table=??(ls_in_check_port_sec), priority=50 , match=(1),
> > action=(reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_apply_port_sec), priority=0 , match=(1), action=(next;)
> > table=??(ls_in_apply_port_sec), priority=50 , match=(reg0[[15]] == 1),
> > action=(drop;)
> > @@ -8396,6 +8408,9 @@ sort | sed 's/table=../table=??/' ], [0], [dnl
> > table=??(ls_in_check_port_sec), priority=100 , match=(eth.src[[40]]),
> > action=(drop;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(inport ==
> > "sw0p1"), action=(reg0[[15]] = 1; next;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(vlan.present),
> > action=(drop;)
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > table=??(ls_in_check_port_sec), priority=50 , match=(1),
> > action=(reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_apply_port_sec), priority=0 , match=(1), action=(next;)
> > table=??(ls_in_apply_port_sec), priority=50 , match=(reg0[[15]] == 1),
> > action=(drop;)
> > @@ -8422,6 +8437,9 @@ sort | sed 's/table=../table=??/' ], [0], [dnl
> > table=??(ls_in_check_port_sec), priority=100 , match=(eth.src[[40]]),
> > action=(drop;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(inport ==
> > "sw0p1"), action=(reg0[[15]] = 1; next;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(vlan.present),
> > action=(drop;)
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > table=??(ls_in_check_port_sec), priority=50 , match=(1),
> > action=(reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_check_port_sec), priority=70 , match=(inport ==
> > "sw0p2"), action=(set_queue(10); reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_apply_port_sec), priority=0 , match=(1), action=(next;)
> > @@ -8451,6 +8469,9 @@ AT_CHECK([cat sw0flows | grep -e port_sec -e
> > ls_in_l2_lkup -e ls_in_l2_unknown |
> > sort | sed 's/table=../table=??/' ], [0], [dnl
> > table=??(ls_in_check_port_sec), priority=100 , match=(eth.src[[40]]),
> > action=(drop;)
> > table=??(ls_in_check_port_sec), priority=100 , match=(vlan.present),
> > action=(drop;)
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > + table=??(ls_in_check_port_sec), priority=110 , match=((ip4 &&
> > icmp4.type == 3 && icmp4.code == 4) || (ip6 && icmp6.type == 2 &&
> > icmp6.code == 0)), action=(next; )
> > table=??(ls_in_check_port_sec), priority=50 , match=(1),
> > action=(reg0[[15]] = check_in_port_sec(); next;)
> > table=??(ls_in_check_port_sec), priority=70 , match=(inport ==
> > "localnetport"), action=(set_queue(10); reg0[[15]] = check_in_port_sec();
> > next;)
> > table=??(ls_in_check_port_sec), priority=70 , match=(inport ==
> > "sw0p1"), action=(reg0[[14]] = 1; next(pipeline=ingress, table=17);)
> > --
> > 2.43.0
> >
> >
> > _______________________________________________
> > dev mailing list
> > [email protected]
> > https://mail.openvswitch.org/mailman/listinfo/ovs-dev
> >
>
_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
