yahoo-eng-team team mailing list archive
-
yahoo-eng-team team
-
Mailing list archive
-
Message #69148
[Bug 1732067] [NEW] openvswitch firewall flows cause flooding on integration bridge
Public bug reported:
Environment: OpenStack Newton
Driver: ML2 w/ OVS
Firewall: openvswitch
In this environment, we have observed OVS flooding network traffic
across all ports in a given VLAN on the integration bridge due to the
lack of a FDB entry for the destination MAC address. Across the large
fleet of 240+ nodes, this is causing a considerable amount of noise on
any given node.
In this test, we have 3 machines:
Client: fa:16:3e:e8:59:00 (10.10.60.2)
Server: fa:16:3e:80:cb:0a (10.10.60.9)
Bystander: fa:16:3e:a0:ee:02 (10.10.60.10)
The server is running a web server using netcat:
while true ; do sudo nc -l -p 80 < index.html ; done
Client requests page using curl:
ip netns exec qdhcp-b07e6cb3-0943-45a2-b5ff-efb7e99e4d3d curl
http://10.10.60.9/
We should expect to see the communication limited to the client and
server. However, the captures below reflect the server->client responses
being broadcast out all tap interfaces connected to br-int in the same
local vlan:
root@osa-newton-ovs-compute01:~# tcpdump -i tap5f03424d-1c -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap5f03424d-1c, link-type EN10MB (Ethernet), capture size 262144 bytes
02:20:30.190675 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 74: 10.10.60.2.54796 > 10.10.60.9.80: Flags [S], seq 213484442, win 29200, options [mss 1460,sackOK,TS val 140883559 ecr 0,nop,wscale 7], length 0
02:20:30.191926 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.54796: Flags [S.], seq 90006557, ack 213484443, win 14480, options [mss 1460,sackOK,TS val 95716 ecr 140883559,nop,wscale 4], length 0
02:20:30.192837 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.54796 > 10.10.60.9.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 140883560 ecr 95716], length 0
02:20:30.192986 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 140: 10.10.60.2.54796 > 10.10.60.9.80: Flags [P.], seq 1:75, ack 1, win 229, options [nop,nop,TS val 140883560 ecr 95716], length 74: HTTP: GET / HTTP/1.1
02:20:30.195806 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.54796: Flags [P.], seq 1:14, ack 1, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 13: HTTP
02:20:30.196207 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.54796 > 10.10.60.9.80: Flags [.], ack 14, win 229, options [nop,nop,TS val 140883561 ecr 95717], length 0
02:20:30.197481 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.54796: Flags [.], ack 75, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 0
^^^ On the server tap we see the bi-directional traffic
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tapb8051da9-60 -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tapb8051da9-60, link-type EN10MB (Ethernet), capture size 262144 bytes
02:20:30.192165 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.54796: Flags [S.], seq 90006557, ack 213484443, win 14480, options [mss 1460,sackOK,TS val 95716 ecr 140883559,nop,wscale 4], length 0
02:20:30.195827 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.54796: Flags [P.], seq 1:14, ack 1, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 13: HTTP
02:20:30.197500 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.54796: Flags [.], ack 75, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 0
^^^ On the bystander tap we see the flooded traffic
The FDB tables reflect the lack of CAM entry for the client on br-int
bridge. I would expect to see the MAC address on the patch uplink:
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-int | grep 'fa:16:3e:e8:59:00'
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-provider | grep 'fa:16:3e:e8:59:00'
2 850 fa:16:3e:e8:59:00 3
Sources[1] point to the fact that an 'output' action negates the MAC learning mechanism in OVS. Related Table 82 entries are below, and code is here[2]:
cookie=0x94ebb7913c37a0ec, duration=415.490s, table=82, n_packets=5, n_bytes=424, idle_age=31, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=354, n_bytes=35229, idle_age=154, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=1, n_bytes=78, idle_age=154, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=ct(commit,zone=NXM_NX_REG6[0..15]),strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=1, n_bytes=78, idle_age=415, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=ct(commit,zone=NXM_NX_REG6[0..15]),strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.491s, table=82, n_packets=120, n_bytes=7920, idle_age=305, priority=50,ct_state=+est-rel+rpl,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.491s, table=82, n_packets=0, n_bytes=0, idle_age=415, priority=50,ct_state=-new-est+rel-inv,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
My testing shows that massaging the flow rules to remove the 'output'
action and instead use a 'mod_vlan_vid' action (for the sake of getting
it working) results in expected behavior:
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=2110, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=518, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=392, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=ct(commit,zone=NXM_NX_REG6[0..15]),mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=185, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=ct(commit,zone=NXM_NX_REG6[0..15]),mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.361s, table=82, n_packets=0, n_bytes=0, idle_age=5263, priority=50,ct_state=+est-rel+rpl,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
cookie=0x85cd1a977dd54be0, duration=0.361s, table=82, n_packets=0, n_bytes=0, idle_age=5373, priority=50,ct_state=-new-est+rel-inv,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
The MAC of the client shows up now on br-int FDB:
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-int | grep 'fa:16:3e:e8:59:00'
1 4 fa:16:3e:e8:59:00 2
The test below shows that traffic is only seen on server tap and not
bystander tap:
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tap5f03424d-1c -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap5f03424d-1c, link-type EN10MB (Ethernet), capture size 262144 bytes
03:46:52.606940 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 74: 10.10.60.2.55808 > 10.10.60.9.80: Flags [S], seq 3645914146, win 29200, options [mss 1460,sackOK,TS val 142179163 ecr 0,nop,wscale 7], length 0
03:46:52.608880 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.55808: Flags [S.], seq 3531519972, ack 3645914147, win 14480, options [mss 1460,sackOK,TS val 1391324 ecr 142179163,nop,wscale 4], length 0
03:46:52.610175 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.55808 > 10.10.60.9.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 142179164 ecr 1391324], length 0
03:46:52.610273 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 140: 10.10.60.2.55808 > 10.10.60.9.80: Flags [P.], seq 1:75, ack 1, win 229, options [nop,nop,TS val 142179164 ecr 1391324], length 74: HTTP: GET / HTTP/1.1
03:46:52.613851 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.55808: Flags [.], ack 75, win 905, options [nop,nop,TS val 1391325 ecr 142179164], length 0
03:46:52.614007 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.55808: Flags [P.], seq 1:14, ack 75, win 905, options [nop,nop,TS val 1391325 ecr 142179164], length 13: HTTP
03:46:52.614314 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.55808 > 10.10.60.9.80: Flags [.], ack 14, win 229, options [nop,nop,TS val 142179165 ecr 1391325], length 0
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tapb8051da9-60 -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tapb8051da9-60, link-type EN10MB (Ethernet), capture size 262144 bytes
>> Nothing! As expected.
I need to build out an environment using the master branch, but the code
at [3] seems to indicate the 'output' action is still specified.
Thanks for taking a look and let me know if you have any questions.
[1] https://mail.openvswitch.org/pipermail/ovs-discuss/2016-August/042276.html
[2] https://github.com/openstack/neutron/blob/newton-eol/neutron/agent/linux/openvswitch_firewall/rules.py#L73
[3] https://github.com/openstack/neutron/blob/master/neutron/agent/linux/openvswitch_firewall/rules.py#L80
** Affects: neutron
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1732067
Title:
openvswitch firewall flows cause flooding on integration bridge
Status in neutron:
New
Bug description:
Environment: OpenStack Newton
Driver: ML2 w/ OVS
Firewall: openvswitch
In this environment, we have observed OVS flooding network traffic
across all ports in a given VLAN on the integration bridge due to the
lack of a FDB entry for the destination MAC address. Across the large
fleet of 240+ nodes, this is causing a considerable amount of noise on
any given node.
In this test, we have 3 machines:
Client: fa:16:3e:e8:59:00 (10.10.60.2)
Server: fa:16:3e:80:cb:0a (10.10.60.9)
Bystander: fa:16:3e:a0:ee:02 (10.10.60.10)
The server is running a web server using netcat:
while true ; do sudo nc -l -p 80 < index.html ; done
Client requests page using curl:
ip netns exec qdhcp-b07e6cb3-0943-45a2-b5ff-efb7e99e4d3d curl
http://10.10.60.9/
We should expect to see the communication limited to the client and
server. However, the captures below reflect the server->client
responses being broadcast out all tap interfaces connected to br-int
in the same local vlan:
root@osa-newton-ovs-compute01:~# tcpdump -i tap5f03424d-1c -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap5f03424d-1c, link-type EN10MB (Ethernet), capture size 262144 bytes
02:20:30.190675 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 74: 10.10.60.2.54796 > 10.10.60.9.80: Flags [S], seq 213484442, win 29200, options [mss 1460,sackOK,TS val 140883559 ecr 0,nop,wscale 7], length 0
02:20:30.191926 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.54796: Flags [S.], seq 90006557, ack 213484443, win 14480, options [mss 1460,sackOK,TS val 95716 ecr 140883559,nop,wscale 4], length 0
02:20:30.192837 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.54796 > 10.10.60.9.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 140883560 ecr 95716], length 0
02:20:30.192986 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 140: 10.10.60.2.54796 > 10.10.60.9.80: Flags [P.], seq 1:75, ack 1, win 229, options [nop,nop,TS val 140883560 ecr 95716], length 74: HTTP: GET / HTTP/1.1
02:20:30.195806 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.54796: Flags [P.], seq 1:14, ack 1, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 13: HTTP
02:20:30.196207 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.54796 > 10.10.60.9.80: Flags [.], ack 14, win 229, options [nop,nop,TS val 140883561 ecr 95717], length 0
02:20:30.197481 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.54796: Flags [.], ack 75, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 0
^^^ On the server tap we see the bi-directional traffic
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tapb8051da9-60 -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tapb8051da9-60, link-type EN10MB (Ethernet), capture size 262144 bytes
02:20:30.192165 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.54796: Flags [S.], seq 90006557, ack 213484443, win 14480, options [mss 1460,sackOK,TS val 95716 ecr 140883559,nop,wscale 4], length 0
02:20:30.195827 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.54796: Flags [P.], seq 1:14, ack 1, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 13: HTTP
02:20:30.197500 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.54796: Flags [.], ack 75, win 905, options [nop,nop,TS val 95717 ecr 140883560], length 0
^^^ On the bystander tap we see the flooded traffic
The FDB tables reflect the lack of CAM entry for the client on br-int
bridge. I would expect to see the MAC address on the patch uplink:
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-int | grep 'fa:16:3e:e8:59:00'
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-provider | grep 'fa:16:3e:e8:59:00'
2 850 fa:16:3e:e8:59:00 3
Sources[1] point to the fact that an 'output' action negates the MAC learning mechanism in OVS. Related Table 82 entries are below, and code is here[2]:
cookie=0x94ebb7913c37a0ec, duration=415.490s, table=82, n_packets=5, n_bytes=424, idle_age=31, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=354, n_bytes=35229, idle_age=154, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=1, n_bytes=78, idle_age=154, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=ct(commit,zone=NXM_NX_REG6[0..15]),strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.489s, table=82, n_packets=1, n_bytes=78, idle_age=415, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=ct(commit,zone=NXM_NX_REG6[0..15]),strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.491s, table=82, n_packets=120, n_bytes=7920, idle_age=305, priority=50,ct_state=+est-rel+rpl,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
cookie=0x94ebb7913c37a0ec, duration=415.491s, table=82, n_packets=0, n_bytes=0, idle_age=415, priority=50,ct_state=-new-est+rel-inv,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
My testing shows that massaging the flow rules to remove the 'output'
action and instead use a 'mod_vlan_vid' action (for the sake of
getting it working) results in expected behavior:
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=2110, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=518, priority=70,ct_state=+est-rel-rpl,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=392, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=80 actions=ct(commit,zone=NXM_NX_REG6[0..15]),mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.359s, table=82, n_packets=0, n_bytes=0, idle_age=185, priority=70,ct_state=+new-est,tcp,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a,tp_dst=22 actions=ct(commit,zone=NXM_NX_REG6[0..15]),mod_vlan_vid:4,NORMAL
cookie=0x85cd1a977dd54be0, duration=0.361s, table=82, n_packets=0, n_bytes=0, idle_age=5263, priority=50,ct_state=+est-rel+rpl,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
cookie=0x85cd1a977dd54be0, duration=0.361s, table=82, n_packets=0, n_bytes=0, idle_age=5373, priority=50,ct_state=-new-est+rel-inv,ct_zone=4,ct_mark=0,reg5=0xd,dl_dst=fa:16:3e:80:cb:0a actions=strip_vlan,output:13
The MAC of the client shows up now on br-int FDB:
root@osa-newton-ovs-compute01:/home/ubuntu# ovs-appctl fdb/show br-int | grep 'fa:16:3e:e8:59:00'
1 4 fa:16:3e:e8:59:00 2
The test below shows that traffic is only seen on server tap and not
bystander tap:
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tap5f03424d-1c -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap5f03424d-1c, link-type EN10MB (Ethernet), capture size 262144 bytes
03:46:52.606940 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 74: 10.10.60.2.55808 > 10.10.60.9.80: Flags [S], seq 3645914146, win 29200, options [mss 1460,sackOK,TS val 142179163 ecr 0,nop,wscale 7], length 0
03:46:52.608880 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 74: 10.10.60.9.80 > 10.10.60.2.55808: Flags [S.], seq 3531519972, ack 3645914147, win 14480, options [mss 1460,sackOK,TS val 1391324 ecr 142179163,nop,wscale 4], length 0
03:46:52.610175 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.55808 > 10.10.60.9.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 142179164 ecr 1391324], length 0
03:46:52.610273 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 140: 10.10.60.2.55808 > 10.10.60.9.80: Flags [P.], seq 1:75, ack 1, win 229, options [nop,nop,TS val 142179164 ecr 1391324], length 74: HTTP: GET / HTTP/1.1
03:46:52.613851 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 66: 10.10.60.9.80 > 10.10.60.2.55808: Flags [.], ack 75, win 905, options [nop,nop,TS val 1391325 ecr 142179164], length 0
03:46:52.614007 fa:16:3e:80:cb:0a > fa:16:3e:e8:59:00, ethertype IPv4 (0x0800), length 79: 10.10.60.9.80 > 10.10.60.2.55808: Flags [P.], seq 1:14, ack 75, win 905, options [nop,nop,TS val 1391325 ecr 142179164], length 13: HTTP
03:46:52.614314 fa:16:3e:e8:59:00 > fa:16:3e:80:cb:0a, ethertype IPv4 (0x0800), length 66: 10.10.60.2.55808 > 10.10.60.9.80: Flags [.], ack 14, win 229, options [nop,nop,TS val 142179165 ecr 1391325], length 0
root@osa-newton-ovs-compute01:/home/ubuntu# tcpdump -i tapb8051da9-60 -ne port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tapb8051da9-60, link-type EN10MB (Ethernet), capture size 262144 bytes
>> Nothing! As expected.
I need to build out an environment using the master branch, but the
code at [3] seems to indicate the 'output' action is still specified.
Thanks for taking a look and let me know if you have any questions.
[1] https://mail.openvswitch.org/pipermail/ovs-discuss/2016-August/042276.html
[2] https://github.com/openstack/neutron/blob/newton-eol/neutron/agent/linux/openvswitch_firewall/rules.py#L73
[3] https://github.com/openstack/neutron/blob/master/neutron/agent/linux/openvswitch_firewall/rules.py#L80
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1732067/+subscriptions
Follow ups