Re: [ovs-dev] [PATCH 6/8] system-traffic.at: Add erspan v2 tunnel test that doesn't depend on upstream gre module
Yes, exactly. Thanks, Yifeng On Thu, Aug 9, 2018 at 1:13 PM, William Tu wrote: > > > On Thu, Aug 9, 2018 at 12:52 PM, Yifeng Sun > wrote: > >> The above packet hex is supposed to be generated by linux native tunnel. >> But since native tunnel conflicts with openvswitch kernel module, so we >> don't add native tunnel but just send simulated packets to OVS. >> >> The ERSPAN implementation of OVS is still tested on br0 and br-underlay. >> In this test, br0 actually generate ERSPAN packets, which are captured on >> p0 >> through tcpdump. >> >> > I see, thanks! > So the hex packet is actually an incoming ERSPAN packet to br-underlay. > As a result, it triggers OVS's ERSPAN tunnel decap as well as encap, > when we see it in tcpdump. > > Regards, > William > > > >> >> On Thu, Aug 9, 2018 at 12:09 PM, William Tu wrote: >> >>> >>> >>> On Wed, Aug 8, 2018 at 11:32 AM, Yifeng Sun >>> wrote: >>> Introduce a new test that doesn't setup native erspan v2 tunnels but sends simulated raw packets. This test is supposed to only run for kernel version from 4.4.x to 4.15.x. Signed-off-by: Yifeng Sun --- tests/system-traffic.at | 44 ++ ++ 1 file changed, 44 insertions(+) diff --git a/tests/system-traffic.at b/tests/system-traffic.at index 44669f8..64b37df 100644 --- a/tests/system-traffic.at +++ b/tests/system-traffic.at @@ -670,6 +670,50 @@ AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > 172.31.1.1: GRE OVS_TRAFFIC_VSWITCHD_STOP AT_CLEANUP +AT_SETUP([datapath - ping over erspan v2 tunnel by simulated packets]) +OVS_CHECK_KERNEL(4, 4, 15) + +OVS_TRAFFIC_VSWITCHD_START() +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff:00 :00:00:01\"]) +ADD_BR([br-underlay], [set bridge br-underlay other-config:hwaddr=\"f2:ff:00:00:00:02\"]) + +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) + +ADD_NAMESPACES(at_ns0) + +dnl Set up underlay link from host into the namespace using veth pair. +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) +AT_CHECK([ip link set dev br-underlay up]) + +dnl Set up tunnel endpoints on OVS outside the namespace and simulate a native +dnl linux device inside the namespace. +ADD_OVS_TUNNEL([erspan], [br0], [at_erspan0], [172.31.1.1], [ 10.1.1.100/24], [options:key=1 options:erspan_ver=2 options:erspan_dir=1 options:erspan_hwid=0x7]) + +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & +sleep 1 + +dnl First, check the underlay +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | FORMAT_PING], [0], [dnl +3 packets transmitted, 3 received, 0% packet loss, time 0ms +]) + +dnl Okay, send raw arp request and icmp echo request. +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet=f2ff0002f2ff000308004552373d4000402fa89ca c1f0101ac1f0164100088be000620016f54b4178078f 2ff000408060001080006040001f2ff00040a0101010a010164 actions=normal" + +sleep 1 +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0806 0001 0800 0604 0002 f2ff " 2>&1 1>/dev/null]) +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0a01 0164 f2ff 0004 0a01 0101" 2>&1 1>/dev/null]) + +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet=f2ff0002f2ff00030800459287e14000402f57b8a c1f0101ac1f0164100088be00052001144cd5a48078f2ff0 001f2ff00040800455c38d640004001eb640a0101010a010 16408005e57585f0001df6c6b5b45bc0500101112131 415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f actions=normal" >>> >>> The above packet hex is already encapsulated with ERSPAN >>> (https://www.gasmi.net/hpd/ can help decode) >>> So this packet does not exercise the ERSPAN implementation in OVS. >>> >>> Can we generate packet from br0 instead of br-underlay? >>> >>> Thanks >>> William >>> >>> + +sleep 1 +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > 172.31.1.1: GREv0, .* length 126" 2>&1 1>/dev/null]) + +OVS_TRAFFIC_VSWITCHD_STOP +AT_CLEANUP + AT_SETUP([datapath - clone action]) OVS_TRAFFIC_VSWITCHD_START() -- 2.7.4 ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev >>> >>> >> > ___ dev mailing list d...@openvswitch.org
Re: [ovs-dev] [PATCH 6/8] system-traffic.at: Add erspan v2 tunnel test that doesn't depend on upstream gre module
On Thu, Aug 9, 2018 at 12:52 PM, Yifeng Sun wrote: > The above packet hex is supposed to be generated by linux native tunnel. > But since native tunnel conflicts with openvswitch kernel module, so we > don't add native tunnel but just send simulated packets to OVS. > > The ERSPAN implementation of OVS is still tested on br0 and br-underlay. > In this test, br0 actually generate ERSPAN packets, which are captured on > p0 > through tcpdump. > > I see, thanks! So the hex packet is actually an incoming ERSPAN packet to br-underlay. As a result, it triggers OVS's ERSPAN tunnel decap as well as encap, when we see it in tcpdump. Regards, William > > On Thu, Aug 9, 2018 at 12:09 PM, William Tu wrote: > >> >> >> On Wed, Aug 8, 2018 at 11:32 AM, Yifeng Sun >> wrote: >> >>> Introduce a new test that doesn't setup native erspan v2 tunnels but >>> sends >>> simulated raw packets. >>> This test is supposed to only run for kernel version from 4.4.x to >>> 4.15.x. >>> >>> Signed-off-by: Yifeng Sun >>> --- >>> tests/system-traffic.at | 44 ++ >>> ++ >>> 1 file changed, 44 insertions(+) >>> >>> diff --git a/tests/system-traffic.at b/tests/system-traffic.at >>> index 44669f8..64b37df 100644 >>> --- a/tests/system-traffic.at >>> +++ b/tests/system-traffic.at >>> @@ -670,6 +670,50 @@ AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP >>> 172.31.1.100 > 172.31.1.1: GRE >>> OVS_TRAFFIC_VSWITCHD_STOP >>> AT_CLEANUP >>> >>> +AT_SETUP([datapath - ping over erspan v2 tunnel by simulated packets]) >>> +OVS_CHECK_KERNEL(4, 4, 15) >>> + >>> +OVS_TRAFFIC_VSWITCHD_START() >>> +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff:00 >>> :00:00:01\"]) >>> +ADD_BR([br-underlay], [set bridge br-underlay >>> other-config:hwaddr=\"f2:ff:00:00:00:02\"]) >>> + >>> +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) >>> +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) >>> + >>> +ADD_NAMESPACES(at_ns0) >>> + >>> +dnl Set up underlay link from host into the namespace using veth pair. >>> +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) >>> +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) >>> +AT_CHECK([ip link set dev br-underlay up]) >>> + >>> +dnl Set up tunnel endpoints on OVS outside the namespace and simulate a >>> native >>> +dnl linux device inside the namespace. >>> +ADD_OVS_TUNNEL([erspan], [br0], [at_erspan0], [172.31.1.1], [ >>> 10.1.1.100/24], [options:key=1 options:erspan_ver=2 >>> options:erspan_dir=1 options:erspan_hwid=0x7]) >>> + >>> +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & >>> +sleep 1 >>> + >>> +dnl First, check the underlay >>> +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | >>> FORMAT_PING], [0], [dnl >>> +3 packets transmitted, 3 received, 0% packet loss, time 0ms >>> +]) >>> + >>> +dnl Okay, send raw arp request and icmp echo request. >>> +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 >>> packet=f2ff0002f2ff000308004552373d4000402fa89ca >>> c1f0101ac1f0164100088be000620016f54b4178078f >>> 2ff000408060001080006040001f2ff00040a0101010a010164 >>> actions=normal" >>> + >>> +sleep 1 >>> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0806 0001 0800 0604 0002 >>> f2ff " 2>&1 1>/dev/null]) >>> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0a01 0164 f2ff 0004 >>> 0a01 0101" 2>&1 1>/dev/null]) >>> + >>> +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 >>> packet=f2ff0002f2ff00030800459287e14000402f57b8a >>> c1f0101ac1f0164100088be00052001144cd5a48078f2ff0 >>> 001f2ff00040800455c38d640004001eb640a0101010a010 >>> 16408005e57585f0001df6c6b5b45bc0500101112131 >>> 415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f >>> actions=normal" >>> >> >> The above packet hex is already encapsulated with ERSPAN >> (https://www.gasmi.net/hpd/ can help decode) >> So this packet does not exercise the ERSPAN implementation in OVS. >> >> Can we generate packet from br0 instead of br-underlay? >> >> Thanks >> William >> >> >>> + >>> +sleep 1 >>> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > >>> 172.31.1.1: GREv0, .* length 126" 2>&1 1>/dev/null]) >>> + >>> +OVS_TRAFFIC_VSWITCHD_STOP >>> +AT_CLEANUP >>> + >>> AT_SETUP([datapath - clone action]) >>> OVS_TRAFFIC_VSWITCHD_START() >>> >>> -- >>> 2.7.4 >>> >>> ___ >>> dev mailing list >>> d...@openvswitch.org >>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev >>> >> >> > ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
Re: [ovs-dev] [PATCH 6/8] system-traffic.at: Add erspan v2 tunnel test that doesn't depend on upstream gre module
The above packet hex is supposed to be generated by linux native tunnel. But since native tunnel conflicts with openvswitch kernel module, so we don't add native tunnel but just send simulated packets to OVS. The ERSPAN implementation of OVS is still tested on br0 and br-underlay. In this test, br0 actually generate ERSPAN packets, which are captured on p0 through tcpdump. On Thu, Aug 9, 2018 at 12:09 PM, William Tu wrote: > > > On Wed, Aug 8, 2018 at 11:32 AM, Yifeng Sun > wrote: > >> Introduce a new test that doesn't setup native erspan v2 tunnels but sends >> simulated raw packets. >> This test is supposed to only run for kernel version from 4.4.x to 4.15.x. >> >> Signed-off-by: Yifeng Sun >> --- >> tests/system-traffic.at | 44 ++ >> ++ >> 1 file changed, 44 insertions(+) >> >> diff --git a/tests/system-traffic.at b/tests/system-traffic.at >> index 44669f8..64b37df 100644 >> --- a/tests/system-traffic.at >> +++ b/tests/system-traffic.at >> @@ -670,6 +670,50 @@ AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP >> 172.31.1.100 > 172.31.1.1: GRE >> OVS_TRAFFIC_VSWITCHD_STOP >> AT_CLEANUP >> >> +AT_SETUP([datapath - ping over erspan v2 tunnel by simulated packets]) >> +OVS_CHECK_KERNEL(4, 4, 15) >> + >> +OVS_TRAFFIC_VSWITCHD_START() >> +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff:00 >> :00:00:01\"]) >> +ADD_BR([br-underlay], [set bridge br-underlay >> other-config:hwaddr=\"f2:ff:00:00:00:02\"]) >> + >> +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) >> +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) >> + >> +ADD_NAMESPACES(at_ns0) >> + >> +dnl Set up underlay link from host into the namespace using veth pair. >> +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) >> +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) >> +AT_CHECK([ip link set dev br-underlay up]) >> + >> +dnl Set up tunnel endpoints on OVS outside the namespace and simulate a >> native >> +dnl linux device inside the namespace. >> +ADD_OVS_TUNNEL([erspan], [br0], [at_erspan0], [172.31.1.1], [ >> 10.1.1.100/24], [options:key=1 options:erspan_ver=2 options:erspan_dir=1 >> options:erspan_hwid=0x7]) >> + >> +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & >> +sleep 1 >> + >> +dnl First, check the underlay >> +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | >> FORMAT_PING], [0], [dnl >> +3 packets transmitted, 3 received, 0% packet loss, time 0ms >> +]) >> + >> +dnl Okay, send raw arp request and icmp echo request. >> +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 >> packet=f2ff0002f2ff000308004552373d4000402fa89ca >> c1f0101ac1f0164100088be000620016f54b4178078f >> 2ff000408060001080006040001f2ff00040a0101010a010164 >> actions=normal" >> + >> +sleep 1 >> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0806 0001 0800 0604 0002 >> f2ff " 2>&1 1>/dev/null]) >> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0a01 0164 f2ff 0004 >> 0a01 0101" 2>&1 1>/dev/null]) >> + >> +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 >> packet=f2ff0002f2ff00030800459287e14000402f57b8a >> c1f0101ac1f0164100088be00052001144cd5a48078f2ff0 >> 001f2ff00040800455c38d640004001eb640a0101010a010 >> 16408005e57585f0001df6c6b5b45bc0500101112131 >> 415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f >> actions=normal" >> > > The above packet hex is already encapsulated with ERSPAN > (https://www.gasmi.net/hpd/ can help decode) > So this packet does not exercise the ERSPAN implementation in OVS. > > Can we generate packet from br0 instead of br-underlay? > > Thanks > William > > >> + >> +sleep 1 >> +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > >> 172.31.1.1: GREv0, .* length 126" 2>&1 1>/dev/null]) >> + >> +OVS_TRAFFIC_VSWITCHD_STOP >> +AT_CLEANUP >> + >> AT_SETUP([datapath - clone action]) >> OVS_TRAFFIC_VSWITCHD_START() >> >> -- >> 2.7.4 >> >> ___ >> dev mailing list >> d...@openvswitch.org >> https://mail.openvswitch.org/mailman/listinfo/ovs-dev >> > > ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
Re: [ovs-dev] [PATCH 6/8] system-traffic.at: Add erspan v2 tunnel test that doesn't depend on upstream gre module
On Wed, Aug 8, 2018 at 11:32 AM, Yifeng Sun wrote: > Introduce a new test that doesn't setup native erspan v2 tunnels but sends > simulated raw packets. > This test is supposed to only run for kernel version from 4.4.x to 4.15.x. > > Signed-off-by: Yifeng Sun > --- > tests/system-traffic.at | 44 > 1 file changed, 44 insertions(+) > > diff --git a/tests/system-traffic.at b/tests/system-traffic.at > index 44669f8..64b37df 100644 > --- a/tests/system-traffic.at > +++ b/tests/system-traffic.at > @@ -670,6 +670,50 @@ AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP > 172.31.1.100 > 172.31.1.1: GRE > OVS_TRAFFIC_VSWITCHD_STOP > AT_CLEANUP > > +AT_SETUP([datapath - ping over erspan v2 tunnel by simulated packets]) > +OVS_CHECK_KERNEL(4, 4, 15) > + > +OVS_TRAFFIC_VSWITCHD_START() > +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff: > 00:00:00:01\"]) > +ADD_BR([br-underlay], [set bridge br-underlay other-config:hwaddr=\"f2:ff: > 00:00:00:02\"]) > + > +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) > +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) > + > +ADD_NAMESPACES(at_ns0) > + > +dnl Set up underlay link from host into the namespace using veth pair. > +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) > +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) > +AT_CHECK([ip link set dev br-underlay up]) > + > +dnl Set up tunnel endpoints on OVS outside the namespace and simulate a > native > +dnl linux device inside the namespace. > +ADD_OVS_TUNNEL([erspan], [br0], [at_erspan0], [172.31.1.1], [ > 10.1.1.100/24], [options:key=1 options:erspan_ver=2 options:erspan_dir=1 > options:erspan_hwid=0x7]) > + > +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & > +sleep 1 > + > +dnl First, check the underlay > +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | > FORMAT_PING], [0], [dnl > +3 packets transmitted, 3 received, 0% packet loss, time 0ms > +]) > + > +dnl Okay, send raw arp request and icmp echo request. > +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet= > f2ff0002f2ff000308004552373d4000402fa89cac1f0101 > ac1f0164100088be000620016f54b4178078 > f2ff000408060001080006040001f2ff00040a0101010a010164 > actions=normal" > + > +sleep 1 > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0806 0001 0800 0604 0002 > f2ff " 2>&1 1>/dev/null]) > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0a01 0164 f2ff 0004 > 0a01 0101" 2>&1 1>/dev/null]) > + > +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet= > f2ff0002f2ff00030800459287e14000402f57b8ac1f0101 > ac1f0164100088be00052001144cd5a48078f2ff0001 > f2ff00040800455c38d640004001eb640a0101010a0101640800 > 5e57585f0001df6c6b5b45bc05001011121314151617 > 18191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f > actions=normal" > The above packet hex is already encapsulated with ERSPAN (https://www.gasmi.net/hpd/ can help decode) So this packet does not exercise the ERSPAN implementation in OVS. Can we generate packet from br0 instead of br-underlay? Thanks William > + > +sleep 1 > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > > 172.31.1.1: GREv0, .* length 126" 2>&1 1>/dev/null]) > + > +OVS_TRAFFIC_VSWITCHD_STOP > +AT_CLEANUP > + > AT_SETUP([datapath - clone action]) > OVS_TRAFFIC_VSWITCHD_START() > > -- > 2.7.4 > > ___ > dev mailing list > d...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev > ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
