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Hey,<br>
<br>
Thanks a lot for such a detailed explanation. <br>
<br>
Regards,<br>
<br>
Priyanka<br>
<div class="moz-cite-prefix">On Tuesday 24 May 2016 09:59 AM,
Kaustubh Kelkar wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Ah,
so you want to add to an existing port mirror. I had
presumed you would delete the existing one and re-create a
new dummy port to mirror traffic from the two ports.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Anyway,
here’s how I would go (from scratch):<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman"">
</span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Create
a dummy interface<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ip
link add name sniff0 type dummy<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ip
link set dev sniff0 up<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span
style="mso-list:Ignore">2)<span style="font:7.0pt
"Times New Roman"">
</span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Attach
to the OVS bridge br-int<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
add-port br-int sniff0<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span
style="mso-list:Ignore">3)<span style="font:7.0pt
"Times New Roman"">
</span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Mirror
traffic from port int-br2 on sniff0<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
-- set Bridge br-int mirrors=@m \<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@sniff0 get Port sniff0 \<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@int-br2 get Port int-br2 \<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@m create Mirror name=mirror0 select-dst-port=@int-br2
\<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select-src-port=@int-br2
output-port=@sniff0 select_all=1<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span
style="mso-list:Ignore">4)<span style="font:7.0pt
"Times New Roman"">
</span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Add
*<b>another port</b>* int-br3 so that traffic from this port
is mirrored on sniff0 as well<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
add Mirror mirror0 select_src_port <UUID of int-br2><o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
add Mirror mirror0 select_dst_port <UUID of int-br2><o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
add Mirror mirror0 output_port <UUUID of sniff0><o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span
style="mso-list:Ignore">5)<span style="font:7.0pt
"Times New Roman"">
</span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Show
the config,<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">root@xxxxx:/home/kkelkar#
ovs-vsctl find Mirror<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">_uuid
: 0c31c824-c9b7-466b-b262-a92a9c7908a2<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">external_ids
: {}<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">name
: "mirror0"<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">output_port
: 802b18f0-f0c3-4c28-bf7b-7be741ecb24e<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">output_vlan
: []<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select_all
: true<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select_dst_port
: [46d079b1-08d5-4865-b32c-a1edce5a4f4d,
8bd232e6-c87a-41e6-ba38-b49ab7859a0e]<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select_src_port
: [46d079b1-08d5-4865-b32c-a1edce5a4f4d,
8bd232e6-c87a-41e6-ba38-b49ab7859a0e]<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select_vlan
: []<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">statistics
: {tx_bytes=3106, tx_packets=37}<o:p></o:p></span></p>
<p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">As
for getting the UUIDs, you could use<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
list Port int-br3<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
list Port sniff0 etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">And
possibly you can trace traffic:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">root@hchi:/home/kkelkar#
tcpdump -tnei sniff0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">tcpdump:
WARNING: sniff0: no IPv4 address assigned<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">tcpdump:
verbose output suppressed, use -v or -vv for full protocol
decode<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">listening
on sniff0, link-type EN10MB (Ethernet), capture size 65535
bytes<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">fa:16:3e:f3:7e:2a
> 00:0c:db:d0:b1:80, ethertype 802.1Q (0x8100), length
70: vlan 4, p 0, ethertype IPv4, 10.3.129.164.754 >
192.168.2.27.2049: Flags [.], ack 3993225264, win 182,
options [nop,nop,TS val 71232768 ecr 3080260966], length 0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">fa:16:3e:f3:7e:2a
> 00:0c:db:d0:b1:80, ethertype 802.1Q (0x8100), length
182: vlan 4, p 0, ethertype IPv4, 10.3.129.164.754 >
192.168.2.27.2049: Flags [P.], seq 1:113, ack 1, win 182,
options [nop,nop,TS val 71232768 ecr 3080260966], length
112: NFS request xid 1430702477 getattr [|nfs]<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">fa:16:3e:ec:5a:ae
> fa:16:3e:56:1b:7a, ethertype 802.1Q (0x8100), length
70: vlan 1, p 0, ethertype IPv4, 192.168.2.27.2049 >
192.168.10.23.754: Flags [.], ack 2335208845, win 114,
options [nop,nop,TS val 3080321126 ecr 71217728], length 0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hope
this helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Kaustubh<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Priyanka [<a class="moz-txt-link-freetext" href="mailto:ppnaik@cse.iitb.ac.in">mailto:ppnaik@cse.iitb.ac.in</a>]
<br>
<b>Sent:</b> Monday, May 23, 2016 12:07 AM<br>
<b>To:</b> Kaustubh Kelkar
<a class="moz-txt-link-rfc2396E" href="mailto:kaustubh.kelkar@casa-systems.com"><kaustubh.kelkar@casa-systems.com></a>; OpenStack
Mailing List <a class="moz-txt-link-rfc2396E" href="mailto:openstack@lists.openstack.org"><openstack@lists.openstack.org></a><br>
<b>Subject:</b> Re: [Openstack] add new ports to port
mirror<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hi,<br>
<br>
I have used this command to create the port mirror. How can I
mirror a new port too say eth2 on this existing port mirror
(sniff0)?<br>
<br>
Thanks,<br>
<br>
Priyanka<o:p></o:p></p>
<div>
<p class="MsoNormal">On Friday 20 May 2016 08:59 PM, Kaustubh
Kelkar wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">From
</span><a moz-do-not-send="true"
href="http://openvswitch.org/support/dist-docs/ovs-vsctl.8.txt"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">http://openvswitch.org/support/dist-docs/ovs-vsctl.8.txt</span></a><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
, can you try the following?</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">To
mirror traffic on ports eth0 and eth1 on port mirror
sniff0:</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl
-- set Bridge br-int mirrors=@m \</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@eth0 get Port eth0 \</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@eth1 get Port eth1 \</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@sniff0 get Port sniff0 \</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
--id=@m create Mirror name=mymirror
select-dst-port=@eth0,@eth1 \</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">select-src-port=@eth0,@eth1
output-port=@sniff0 select_all=1</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Kaustubh</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Priyanka [</span><a moz-do-not-send="true"
href="mailto:ppnaik@cse.iitb.ac.in"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">mailto:ppnaik@cse.iitb.ac.in</span></a><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">]
<br>
<b>Sent:</b> Friday, May 20, 2016 5:43 AM<br>
<b>To:</b> OpenStack Mailing List </span><a
moz-do-not-send="true"
href="mailto:openstack@lists.openstack.org"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"><openstack@lists.openstack.org></span></a><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"><br>
<b>Subject:</b> [Openstack] add new ports to port
mirror</span><o:p></o:p></p>
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<p class="MsoNormal">Hi,<br>
<br>
<span
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#4B4B4B;background:white">I
am having port mirror on br-int of compute node to capture
traffic from VM. Can I add new ports (i.e. of a new VM) to
an existing port mirror? If so, what command do I need to
use?<br>
<br>
<br>
Thanks,<br>
<br>
Priyanka<br>
<br>
<br>
</span><o:p></o:p></p>
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