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ovs/tests/system-userspace-packet-type-aware.at
Frode Nordahl 34ae81c1f4 tests: Use ping timeout instead of deadline. 
Many system tests currently use ping with the combination of a
low packet count (-c 3), short interval between sends (-i 0.3)
and a _deadline_ of 2 seconds (-d 2).

This combination of options may lead to a situation where more
than count packets are sent however ping will stop when count
packets are received. This results in a failed test due to how
the result is checked, for example:

    ping6 -q -c 3 -i 0.3 -w 2 fc00::3 | FORMAT_PING
    @@ -1,2 +1,2 @@
    -3 packets transmitted, 3 received, 0% packet loss, time 0ms
    +4 packets transmitted, 3 received, 25% packet loss, time 0ms

To reiterate, in the above example there is no packet loss, but
ping stops after _receiving_ 3 packets, not bothering with
waiting for the response to the fourth packet it just sent out.

If we look at the iputils ping manual for the -w deadline option
we can read that this is expected behavior:

 > Specify a timeout, in seconds, before ping exits regardless of
 > how many packets have been sent or received. In this case ping
 > does not stop after count packet are sent, it waits either for
 > deadline expire or until count probes are answered or for some
 > error notification from network.

To avoid these kinds of failures in checks where a response is
expected, we replace ping -w with ping -W.

We keep ping -w for checks where it is expected to NOT get a
response.

Acked-by: Simon Horman <horms@ovn.org>
Signed-off-by: Frode Nordahl <frode.nordahl@canonical.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
2023-10-26 22:28:43 +02:00

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AT_BANNER([packet-type-aware pipeline])
AT_SETUP([ptap - triangle bridge setup with L2 and L3 GRE tunnels])
########################
# GRE tunneling test setup for PTAP bridge
#
# 192.168.10.10 192.168.10.20 192.168.10.30
# n1 n2 n3
# |ovs-n1 |ovs-n2 |ovs-n3
# +------o------+ +------o------+ +------o------+
# | br-in1 | | br-in2 | | br-in3 |
# | | | (PTAP) | | |
# +------o------+ +------o------+ +------o------+
# gre gre gre
# 10.0.0.1 (10.0.0.2) (10.0.0.3)
# (20.0.0.1) 20.0.0.2 (20.0.0.3)
# (30.0.0.1) LOCAL (30.0.0.2) LOCAL 30.0.0.3 LOCAL
# +-----------o-+ +-----------o-+ +-----------o-+
# | br-p1 | | br-p2 | | br-p3 |
# +------o------+ +------o------+ +------o------+
# p1-0 | | p2-0 | p3-0
# p0-1 | | p0-2 | p0-3
# +--o------------------------o-------------------------o--+
# | br0 |
# +--------------------------------------------------------+
#"
# GRE tunnel ports:
# No Bridge Name Packet-type Remote bridge & ports
# -----------------------------------------------------------------------
# 1020 br-in1 gre-12 l2 br-in2 2010 (ptap)
# 1021 br-in1 gre-12_l3 l3 same
# 1030 br-in1 gre-13 l2 br-in3 3010 (l2)
# 2010 br-in2 gre-21 ptap br-in1 1020 (l2), 1021 (l3)
# 2030 br-in2 gre-23 ptap br-in3 3020 (l2), 3021 (l3)
# 3010 br-in3 gre-31 l2 br-in1 1030 (l2)
# 3020 br-in3 gre-32 l2 br-in2 2010 (ptap)
# 3021 br-in3 gre-32_l3 l3 same
AT_SKIP_IF([test $HAVE_NC = no])
OVS_TRAFFIC_VSWITCHD_START()
HWADDR_BRP1=aa:55:00:00:00:01
HWADDR_BRP2=aa:55:00:00:00:02
HWADDR_BRP3=aa:55:00:00:00:03
dnl Create veth ports to connect br0 with br-p1, br-p2 and br-p3
AT_CHECK([ip link add p1-0 type veth peer name p0-1])
AT_CHECK([ip link set p1-0 up])
AT_CHECK([ip link set p0-1 up])
AT_CHECK([ip link set dev p1-0 mtu 3300])
AT_CHECK([ip link set dev p0-1 mtu 3300])
on_exit 'ip link del p0-1'
AT_CHECK([ip link add p2-0 type veth peer name p0-2])
AT_CHECK([ip link set p2-0 up])
AT_CHECK([ip link set p0-2 up])
AT_CHECK([ip link set dev p2-0 mtu 3300])
AT_CHECK([ip link set dev p0-2 mtu 3300])
on_exit 'ip link del p0-2'
AT_CHECK([ip link add p3-0 type veth peer name p0-3])
AT_CHECK([ip link set p3-0 up])
AT_CHECK([ip link set p0-3 up])
AT_CHECK([ip link set dev p3-0 mtu 3300])
AT_CHECK([ip link set dev p0-3 mtu 3300])
on_exit 'ip link del p0-3'
# Setup bridge infrastructure
AT_CHECK([
ovs-vsctl add-br br-in1 -- \
set bridge br-in1 datapath_type=netdev fail-mode=standalone
ovs-vsctl add-br br-in2 -- \
set bridge br-in2 datapath_type=netdev fail-mode=standalone
ovs-vsctl add-br br-in3 -- \
set bridge br-in3 datapath_type=netdev fail-mode=standalone
ovs-vsctl add-br br-p1 -- \
set bridge br-p1 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP1
ovs-vsctl add-br br-p2 -- \
set bridge br-p2 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP2
ovs-vsctl add-br br-p3 -- \
set bridge br-p3 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP3
ovs-vsctl add-port br-p1 p1-0 -- set interface p1-0 ofport_request=2
ovs-vsctl add-port br-p2 p2-0 -- set interface p2-0 ofport_request=2
ovs-vsctl add-port br-p3 p3-0 -- set interface p3-0 ofport_request=2
ovs-vsctl add-port br0 p0-1 -- set interface p0-1 ofport_request=10
ovs-vsctl add-port br0 p0-2 -- set interface p0-2 ofport_request=20
ovs-vsctl add-port br0 p0-3 -- set interface p0-3 ofport_request=30
# Populate the MAC table of br0
ovs-ofctl del-flows br0
ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP1,actions=10
ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP2,actions=20
ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP3,actions=30
ovs-ofctl del-flows br-in1
ovs-ofctl del-flows br-in2
ovs-ofctl del-flows br-in3
ovs-ofctl del-flows br-p1
ovs-ofctl del-flows br-p2
ovs-ofctl del-flows br-p3
], [0])
### Setup GRE tunnels
AT_CHECK([
ovs-vsctl add-port br-in1 gre12 -- \
set interface gre12 type=gre options:remote_ip=10.0.0.2 ofport_request=1020
ovs-vsctl add-port br-in1 gre12_l3 -- \
set interface gre12_l3 type=gre options:remote_ip=10.0.0.2 ofport_request=1021 options:packet_type=legacy_l3
ovs-vsctl add-port br-in1 gre13 -- \
set interface gre13 type=gre options:remote_ip=10.0.0.3 ofport_request=1030
ovs-vsctl add-port br-in2 gre21 -- \
set interface gre21 type=gre options:remote_ip=20.0.0.1 ofport_request=2010 options:packet_type=ptap
ovs-vsctl add-port br-in2 gre23 -- \
set interface gre23 type=gre options:remote_ip=20.0.0.3 ofport_request=2030 options:packet_type=ptap
ovs-vsctl add-port br-in3 gre31 -- \
set interface gre31 type=gre options:remote_ip=30.0.0.1 ofport_request=3010
ovs-vsctl add-port br-in3 gre32 -- \
set interface gre32 type=gre options:remote_ip=30.0.0.2 ofport_request=3020
ovs-vsctl add-port br-in3 gre32_l3 -- \
set interface gre32_l3 type=gre options:remote_ip=30.0.0.2 ofport_request=3021 options:packet_type=legacy_l3
], [0], [stdout])
AT_CHECK([
ip addr add 10.0.0.1/24 dev br-p1
ip link set br-p1 up
], [0], [stdout])
OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p1])
AT_CHECK([
ovs-appctl ovs/route/add 10.0.0.0/24 br-p1
ovs-appctl tnl/arp/set br-p1 10.0.0.1 $HWADDR_BRP1
ovs-appctl tnl/arp/set br-p1 10.0.0.2 $HWADDR_BRP2
ovs-appctl tnl/arp/set br-p1 10.0.0.3 $HWADDR_BRP3
], [0], [stdout])
AT_CHECK([
ip addr add 20.0.0.2/24 dev br-p2
ip link set br-p2 up
], [0], [stdout])
OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p2])
AT_CHECK([
ovs-appctl ovs/route/add 20.0.0.0/24 br-p2
ovs-appctl tnl/arp/set br-p2 20.0.0.1 $HWADDR_BRP1
ovs-appctl tnl/arp/set br-p2 20.0.0.2 $HWADDR_BRP2
ovs-appctl tnl/arp/set br-p2 20.0.0.3 $HWADDR_BRP3
], [0], [stdout])
AT_CHECK([
ip addr add 30.0.0.3/24 dev br-p3
ip link set br-p3 up
], [0], [stdout])
OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p3])
AT_CHECK([
ovs-appctl ovs/route/add 30.0.0.0/24 br-p3
ovs-appctl tnl/arp/set br-p3 30.0.0.1 $HWADDR_BRP1
ovs-appctl tnl/arp/set br-p3 30.0.0.2 $HWADDR_BRP2
ovs-appctl tnl/arp/set br-p3 30.0.0.3 $HWADDR_BRP3
], [0], [stdout])
AT_CHECK([
ovs-appctl ovs/route/show | grep User:
], [0], [dnl
User: 10.0.0.0/24 dev br-p1 SRC 10.0.0.1
User: 20.0.0.0/24 dev br-p2 SRC 20.0.0.2
User: 30.0.0.0/24 dev br-p3 SRC 30.0.0.3
])
AT_CHECK([
ovs-appctl tnl/neigh/show | grep br-p | sort
], [0], [stdout])
### Flows in br-p<x>to twist TEP IP addresses in tunnel IP headers
AT_CHECK([
ovs-ofctl add-flow br-p1 in_port:LOCAL,ip,actions=2
ovs-ofctl add-flow br-p1 in_port:2,ip,nw_dst:20.0.0.1,actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.2,LOCAL
ovs-ofctl add-flow br-p1 in_port:2,ip,nw_dst:30.0.0.1,actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.3,LOCAL
ovs-ofctl add-flow br-p2 in_port:LOCAL,ip,actions=2
ovs-ofctl add-flow br-p2 in_port:2,ip,nw_dst:10.0.0.2,actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.1,LOCAL
ovs-ofctl add-flow br-p2 in_port:2,ip,nw_dst:30.0.0.2,actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.3,LOCAL
ovs-ofctl add-flow br-p3 in_port:LOCAL,ip,actions=2
ovs-ofctl add-flow br-p3 in_port:2,ip,nw_dst:10.0.0.3,actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.1,LOCAL
ovs-ofctl add-flow br-p3 in_port:2,ip,nw_dst:20.0.0.3,actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.2,LOCAL
], [0])
# Strips 'n_packets=...' from ovs-ofctl output.
strip_n_packets () {
sed 's/n_packets=[[0-9]]*, //'
}
# Strips 'n_bytes=...' from ovs-ofctl output.
strip_n_bytes () {
sed 's/n_bytes=[[0-9]]*, //'
}
AT_CHECK([
ovs-ofctl dump-flows br-p1 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
ovs-ofctl dump-flows br-p2 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
ovs-ofctl dump-flows br-p3 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
], [0], [dnl
ip,in_port=2,nw_dst=20.0.0.1 actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.2,LOCAL
ip,in_port=2,nw_dst=30.0.0.1 actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.3,LOCAL
ip,in_port=LOCAL actions=output:2
ip,in_port=2,nw_dst=10.0.0.2 actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.1,LOCAL
ip,in_port=2,nw_dst=30.0.0.2 actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.3,LOCAL
ip,in_port=LOCAL actions=output:2
ip,in_port=2,nw_dst=10.0.0.3 actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.1,LOCAL
ip,in_port=2,nw_dst=20.0.0.3 actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.2,LOCAL
ip,in_port=LOCAL actions=output:2
])
### Setup test ports for traffic injection
N1_IP=192.168.10.10
N2_IP=192.168.10.20
N3_IP=192.168.10.30
N1_MAC=aa:55:aa:55:00:01
N2_MAC=aa:55:aa:55:00:02
N3_MAC=aa:55:aa:55:00:03
N1_OFPORT=10
N2_OFPORT=20
N3_OFPORT=30
ADD_NAMESPACES(ns1, ns2, ns3)
ADD_VETH(n1, ns1, br-in1, "$N1_IP/24", $N1_MAC)
ADD_VETH(n2, ns2, br-in2, "$N2_IP/24", $N2_MAC)
ADD_VETH(n3, ns3, br-in3, "$N3_IP/24", $N3_MAC)
NS_EXEC([ns1], [arp -s $N2_IP $N2_MAC])
NS_EXEC([ns1], [arp -s $N3_IP $N3_MAC])
NS_EXEC([ns2], [arp -s $N1_IP $N1_MAC])
NS_EXEC([ns2], [arp -s $N3_IP $N3_MAC])
NS_EXEC([ns3], [arp -s $N2_IP $N2_MAC])
NS_EXEC([ns3], [arp -s $N1_IP $N1_MAC])
AT_CHECK([
ovs-vsctl set interface ovs-n1 ofport_request=$N1_OFPORT
ovs-vsctl set interface ovs-n2 ofport_request=$N2_OFPORT
ovs-vsctl set interface ovs-n3 ofport_request=$N3_OFPORT
], [0])
#N1_DPPORT=$(ovs-appctl dpif/show | grep "n1 10" | sed 's|.*/\([[0-9]]*\):.*|\1|')
#N2_DPPORT=$(ovs-appctl dpif/show | grep "n2 20" | sed 's|.*/\([[0-9]]*\):.*|\1|')
#N3_DPPORT=$(ovs-appctl dpif/show | grep "n3 30" | sed 's|.*/\([[0-9]]*\):.*|\1|')
### Verify datapath configuration
AT_CHECK([
ovs-appctl dpif/show | grep -v hit
], [0], [dnl
br-in1:
br-in1 65534/2: (tap)
gre12 1020/14: (gre: remote_ip=10.0.0.2)
gre12_l3 1021/14: (gre: packet_type=legacy_l3, remote_ip=10.0.0.2)
gre13 1030/14: (gre: remote_ip=10.0.0.3)
ovs-n1 10/15: (system)
br-in2:
br-in2 65534/3: (tap)
gre21 2010/14: (gre: packet_type=ptap, remote_ip=20.0.0.1)
gre23 2030/14: (gre: packet_type=ptap, remote_ip=20.0.0.3)
ovs-n2 20/16: (system)
br-in3:
br-in3 65534/4: (tap)
gre31 3010/14: (gre: remote_ip=30.0.0.1)
gre32 3020/14: (gre: remote_ip=30.0.0.2)
gre32_l3 3021/14: (gre: packet_type=legacy_l3, remote_ip=30.0.0.2)
ovs-n3 30/17: (system)
br-p1:
br-p1 65534/5: (tap)
p1-0 2/8: (system)
br-p2:
br-p2 65534/6: (tap)
p2-0 2/9: (system)
br-p3:
br-p3 65534/7: (tap)
p3-0 2/10: (system)
br0:
br0 65534/1: (tap)
p0-1 10/11: (system)
p0-2 20/12: (system)
p0-3 30/13: (system)
])
### Test L3 forwarding flows
AT_CHECK([
ovs-ofctl add-flow br-in1 ip,nw_dst=$N1_IP,actions=mod_dl_dst:$N1_MAC,$N1_OFPORT # Local route to N1
ovs-ofctl add-flow br-in1 ip,nw_dst=$N2_IP,actions=1020 # Route to N2 via the L2 tunnel to br-in2
ovs-ofctl add-flow br-in1 ip,nw_dst=$N3_IP,actions=1030 # Route to N3 direct through L2 tunnel
ovs-ofctl add-flow br-in2 ip,nw_dst=$N2_IP,actions=mod_dl_dst:$N2_MAC,$N2_OFPORT # Local route to N2 for ethernet packets
ovs-ofctl add-flow br-in2 ip,nw_dst=$N1_IP,actions=2010 # Route to N1 for ethernet packet
ovs-ofctl add-flow br-in2 packet_type=\(1,0x800\),nw_dst=$N1_IP,actions=2010 # Route to N1 for IP packets
ovs-ofctl add-flow br-in2 ip,nw_dst=$N3_IP,actions=2010 # Indirect route to N3 via br-in1 for ethernet packet
ovs-ofctl add-flow br-in2 packet_type=\(1,0x800\),nw_dst=$N3_IP,actions=2030 # Direct route to N3 for IP packets
ovs-ofctl add-flow br-in3 ip,nw_dst=$N3_IP,actions=mod_dl_dst:$N3_MAC,$N3_OFPORT # Local route to N1
ovs-ofctl add-flow br-in3 ip,nw_dst=$N2_IP,actions=3020 # Route to N2 via the L2 tunnel
ovs-ofctl add-flow br-in3 ip,nw_dst=$N1_IP,actions=3021 # Route to N1 via br-in2 through L3 tunnel
], [0])
AT_CHECK([
ovs-ofctl dump-flows br-in1 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
], [0], [dnl
ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
ip,nw_dst=192.168.10.20 actions=output:1020
ip,nw_dst=192.168.10.30 actions=output:1030
])
AT_CHECK([
ovs-ofctl dump-flows br-in2 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
], [0], [dnl
ip,nw_dst=192.168.10.10 actions=output:2010
ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
ip,nw_dst=192.168.10.30 actions=output:2010
packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
packet_type=(1,0x800),nw_dst=192.168.10.30 actions=output:2030
])
AT_CHECK([
ovs-ofctl dump-flows br-in3 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
], [0], [dnl
ip,nw_dst=192.168.10.10 actions=output:3021
ip,nw_dst=192.168.10.20 actions=output:3020
ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
])
# Ping between N1 and N3, via the L2 GRE tunnel between br-in1 and br-in3
NS_CHECK_EXEC([ns1], [ping -q -c 3 -i 0.3 -W 2 $N3_IP | FORMAT_PING], [0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
sleep 1
AT_CHECK([
ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=252, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=output:1030
])
AT_CHECK([
ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=252, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
])
AT_CHECK([
ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:3021
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
])
# Ping between N1 and N2, via the L2 GRE tunnel between br-in1 and br-in2
NS_CHECK_EXEC([ns1], [ping -q -c 3 -i 0.3 -W 2 $N2_IP | FORMAT_PING], [0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
sleep 1
AT_CHECK([
ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=output:1020
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=output:1030
n_packets=6, n_bytes=546, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
])
AT_CHECK([
ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=252, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:2010
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
])
AT_CHECK([
ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:3021
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
])
# Ping between N3 and N2, via the L3 GRE tunnel between br-in3 and br-in2
NS_CHECK_EXEC([ns3], [ping -q -c 3 -i 0.3 -W 2 $N1_IP | FORMAT_PING], [0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
sleep 1
AT_CHECK([
ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=output:1020
n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.30 actions=output:1030
n_packets=9, n_bytes=798, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
])
AT_CHECK([
ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:2010
n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
n_packets=6, n_bytes=504, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
])
AT_CHECK([
ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
], [0], [dnl
n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.10 actions=output:3021
n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
])
OVS_TRAFFIC_VSWITCHD_STOP
AT_CLEANUP
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